f-50: lab: rôles des nœuds, adresses du lien, loopback et installation de FRR #50
Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>
This commit is contained in:
parent
0c36ed8977
commit
8d1691ae94
GPG key ID:
4406BBBF8845D632
21 changed files with 962 additions and 58 deletions
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@ -130,7 +130,12 @@ func renderCmd(args []string, stdout, stderr io.Writer) int {
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fmt.Fprintf(stderr, "lab: %v\n", err)
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return 1
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}
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nodes, err := render.Render(p, render.Options{RunDir: dir, AuthorizedKeys: authorized})
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frr, err := provision.ReadFRR(p)
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if err != nil {
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fmt.Fprintf(stderr, "lab: %v\n", err)
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return 1
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}
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nodes, err := render.Render(p, render.Options{RunDir: dir, AuthorizedKeys: authorized, FRR: frr})
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if err != nil {
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fmt.Fprintf(stderr, "lab: %v\n", err)
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return 1
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@ -33,8 +33,9 @@ func TestRun_PlanOfTheShippedExampleTopology(t *testing.T) {
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}
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for _, want := range []string{
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"lab evpn-2hv: nodes 4, segments 1, cables 3",
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"gateway 10.250.0.1",
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"hv2 underlay 10.250.0.4/24 02:4c:00:03:00:00 20004 <-> sw1 p2",
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"gateway 192.168.14.1",
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"hv2 underlay 192.168.14.12/24 02:4c:00:03:00:00 20004 <-> sw1 p2",
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"rr1 lo1 10.255.255.1/32 underlay 169.254.0.3/28 rr1.conf",
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} {
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if !strings.Contains(stdout, want) {
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t.Errorf("output does not contain %q:\n%s", want, stdout)
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@ -299,3 +300,55 @@ func TestRun_UpRefusesToReplaceARunningLab(t *testing.T) {
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t.Error("the topology of a running lab was replaced")
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}
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}
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func TestRun_RenderShipsTheExampleFRRConfigs(t *testing.T) {
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dir := t.TempDir()
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key := filepath.Join(dir, "lab.pub")
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if err := os.WriteFile(key, []byte("ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFG/JMmjfko96WkJV8DiL6rip/H/q/R++y8s27Z+Cj6O two-lab-automation\n"), 0o600); err != nil {
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t.Fatal(err)
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}
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out := filepath.Join(dir, "run")
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code, _, stderr := runLab("render", "-key", key, filepath.Join("..", "..", "conf", "lab", "evpn-2hv.yml"), out)
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if code != 0 {
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t.Fatalf("code %d, stderr %s", code, stderr)
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}
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for node, want := range map[string]string{
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"sw1": "router bgp 65100",
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"rr1": "bgp listen range 192.168.14.0/24 peer-group fabric",
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"hv1": "bgp router-id 192.168.14.11",
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"hv2": "bgp router-id 192.168.14.12",
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} {
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data, err := os.ReadFile(filepath.Join(out, node, "user-data"))
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if err != nil {
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t.Fatal(err)
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}
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if !strings.Contains(string(data), want) {
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t.Errorf("%s user-data does not carry %q", node, want)
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}
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}
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}
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func TestRun_RenderReportsAMissingFRRConfig(t *testing.T) {
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dir := t.TempDir()
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key := filepath.Join(dir, "lab.pub")
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if err := os.WriteFile(key, []byte("ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFG/JMmjfko96WkJV8DiL6rip/H/q/R++y8s27Z+Cj6O x\n"), 0o600); err != nil {
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t.Fatal(err)
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}
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topo := filepath.Join(dir, "lab.yml")
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doc := `name: x
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images:
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deb: { url: https://example.invalid/deb.qcow2, sums: https://example.invalid/SHA512SUMS }
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segments:
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underlay: { switch: sw1, cidr: 10.1.0.0/24 }
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nodes:
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sw1: { role: switch, image: deb, cpus: 1, memory: 512, frr: frr/absent.conf }
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hv1: { role: hypervisor, image: deb, cpus: 1, memory: 512, segments: [underlay] }
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`
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if err := os.WriteFile(topo, []byte(doc), 0o600); err != nil {
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t.Fatal(err)
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}
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code, _, stderr := runLab("render", "-key", key, topo, filepath.Join(dir, "run"))
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if code != 1 || !strings.Contains(stderr, "node sw1: ") || !strings.Contains(stderr, filepath.Join(dir, "frr", "absent.conf")) {
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t.Errorf("code %d, stderr %q", code, stderr)
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}
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}
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@ -8,11 +8,20 @@ images:
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segments:
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underlay:
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switch: sw1
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cidr: 10.250.0.0/24
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cidr: 192.168.14.0/24
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mtu: 9000
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nodes:
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sw1: { role: switch, image: debian12, cpus: 2, memory: 1024 }
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rr1: { role: rr, image: debian12, cpus: 1, memory: 1024, segments: [underlay] }
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hv1: { role: hypervisor, image: debian12, cpus: 4, memory: 16384, segments: [underlay] }
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hv2: { role: hypervisor, image: debian12, cpus: 4, memory: 16384, segments: [underlay] }
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sw1:
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{ role: switch, image: debian12, cpus: 2, memory: 1024,
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secondary: { underlay: [169.254.0.1/28] }, frr: frr/sw1.conf }
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rr1:
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{ role: rr, image: debian12, cpus: 1, memory: 1024, segments: [underlay],
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addresses: { underlay: 192.168.14.2 }, secondary: { underlay: [169.254.0.3/28] },
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loopback: 10.255.255.1/32, frr: frr/rr1.conf }
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hv1:
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{ role: hypervisor, image: debian12, cpus: 4, memory: 16384, segments: [underlay],
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addresses: { underlay: 192.168.14.11 }, frr: frr/hv1.conf }
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hv2:
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{ role: hypervisor, image: debian12, cpus: 4, memory: 16384, segments: [underlay],
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addresses: { underlay: 192.168.14.12 }, frr: frr/hv2.conf }
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19
conf/lab/frr/hv1.conf
Normal file
19
conf/lab/frr/hv1.conf
Normal file
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@ -0,0 +1,19 @@
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frr defaults traditional
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hostname hv1
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log syslog informational
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!
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router bgp 64600
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bgp router-id 192.168.14.11
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no bgp default ipv4-unicast
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neighbor fabric peer-group
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neighbor fabric remote-as 64600
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neighbor fabric capability extended-nexthop
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neighbor 10.255.255.1 peer-group fabric
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!
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address-family l2vpn evpn
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neighbor fabric activate
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advertise-all-vni
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exit-address-family
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!
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exit
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!
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19
conf/lab/frr/hv2.conf
Normal file
19
conf/lab/frr/hv2.conf
Normal file
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@ -0,0 +1,19 @@
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frr defaults traditional
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hostname hv2
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log syslog informational
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!
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router bgp 64600
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bgp router-id 192.168.14.12
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no bgp default ipv4-unicast
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neighbor fabric peer-group
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neighbor fabric remote-as 64600
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neighbor fabric capability extended-nexthop
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neighbor 10.255.255.1 peer-group fabric
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!
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address-family l2vpn evpn
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neighbor fabric activate
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advertise-all-vni
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exit-address-family
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!
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exit
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!
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43
conf/lab/frr/rr1.conf
Normal file
43
conf/lab/frr/rr1.conf
Normal file
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@ -0,0 +1,43 @@
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frr defaults traditional
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hostname rr1
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log syslog informational
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!
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ip prefix-list RR-LOOPBACK-OUT seq 10 permit 10.255.255.1/32
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!
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route-map NO-IN deny 999
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description deny
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exit
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!
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router bgp 65000
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no bgp default ipv4-unicast
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bgp router-id 10.255.255.1
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bgp cluster-id 10.255.255.1
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neighbor CLUSTER peer-group
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neighbor CLUSTER remote-as 65100
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neighbor CLUSTER bfd
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neighbor 169.254.0.1 peer-group CLUSTER
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neighbor 169.254.0.1 description router-1
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neighbor 169.254.0.2 peer-group CLUSTER
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neighbor 169.254.0.2 description router-2
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neighbor fabric peer-group
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neighbor fabric remote-as 64600
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neighbor fabric local-as 64600 no-prepend replace-as
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neighbor fabric capability extended-nexthop
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neighbor fabric update-source 10.255.255.1
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bgp listen range 192.168.14.0/24 peer-group fabric
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bgp listen limit 200
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!
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address-family ipv4 unicast
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network 10.255.255.1/32
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neighbor CLUSTER activate
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neighbor CLUSTER prefix-list RR-LOOPBACK-OUT out
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neighbor CLUSTER route-map NO-IN in
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exit-address-family
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!
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address-family l2vpn evpn
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neighbor fabric activate
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neighbor fabric route-reflector-client
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exit-address-family
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!
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exit
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!
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28
conf/lab/frr/sw1.conf
Normal file
28
conf/lab/frr/sw1.conf
Normal file
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@ -0,0 +1,28 @@
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frr defaults traditional
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hostname sw1
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log syslog informational
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!
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ip prefix-list RR-LOOPBACK-IN seq 10 permit 10.255.255.1/32
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!
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route-map RR-IN permit 10
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match ip address prefix-list RR-LOOPBACK-IN
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exit
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!
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route-map NO-OUT deny 999
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exit
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!
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router bgp 65100
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no bgp default ipv4-unicast
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bgp router-id 169.254.0.1
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neighbor 169.254.0.3 remote-as 65000
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neighbor 169.254.0.3 description rr1
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neighbor 169.254.0.3 bfd
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!
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address-family ipv4 unicast
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neighbor 169.254.0.3 activate
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neighbor 169.254.0.3 route-map RR-IN in
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neighbor 169.254.0.3 route-map NO-OUT out
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exit-address-family
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!
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exit
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!
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@ -116,8 +116,9 @@ Commandes
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que si l'entrée standard en est un
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prepare installe sur le serveur ce dont lab a besoin (qemu, genisoimage), vérifie
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/dev/kvm et la virtualisation imbriquée ; lancé aussi par up
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push <topologie> compile cmd/lab pour linux/amd64 et dépose sur le serveur ~/lab et
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~/<topologie> ; ensuite : ssh './lab up <topologie>'
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push <topologie> compile cmd/lab pour linux/amd64 et dépose sur le serveur ~/lab et le
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répertoire de la topologie dans ~/topology/ (avec les fichiers qu'elle
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référence) ; ensuite : ssh './lab up topology/<topologie>'
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down supprime tous les serveurs de lab du projet et attend leur disparition
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session [cmd] up, puis la commande distante (ou un shell), puis down quoi qu'il arrive
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@ -178,13 +179,15 @@ Une campagne sur le lab enchaîne ces commandes depuis le Mac ; ``lab`` s'exécu
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scripts/lab-host.sh up
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scripts/lab-host.sh push conf/lab/evpn-2hv.yml
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scripts/lab-host.sh ssh './lab up evpn-2hv.yml'
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scripts/lab-host.sh ssh './lab up topology/evpn-2hv.yml'
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scripts/lab-host.sh ssh './lab ssh hv1' # shell interactif sur hv1
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scripts/lab-host.sh ssh './lab ssh hv1 ip -br a' # commande, code de retour propagé
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scripts/lab-host.sh down
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``push`` transfère par la connexion SSH du script (``cat`` côté serveur, fichier renommé une fois
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complet) : mêmes options, même clé, même ``known_hosts`` que ``ssh``.
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``push`` transfère par la connexion SSH du script — mêmes options, même clé, même
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``known_hosts`` que ``ssh`` : le binaire par ``cat``, le répertoire de la topologie par ``tar``
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(sans les métadonnées macOS), chacun renommé une fois complet. Tout le répertoire part, pour que
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les fichiers que la topologie référence (``frr/*.conf``) arrivent avec elle.
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Topologie
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---------
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@ -212,9 +215,23 @@ Ce que le fichier déclare :
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``nodes``
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``role`` (``switch``, ``rr`` ou ``hypervisor``), ``image``, ``cpus``, ``memory`` en Mio
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(256 au moins), ``segments`` auxquels le nœud est relié, et ``addresses`` pour fixer
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l'adresse d'un nœud sur un segment (``addresses: {underlay: 10.250.0.50}``). Un switch ne
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l'adresse d'un nœud sur un segment (``addresses: {underlay: 192.168.14.50}``). Un switch ne
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déclare ni ``segments`` ni ``addresses`` : il porte ceux dont il est le ``switch``.
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Champs de rôle, facultatifs :
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* ``secondary`` — des adresses supplémentaires par segment, avec leur longueur de préfixe
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(``secondary: {underlay: [169.254.0.3/28]}``), posées sur la même interface que l'adresse
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principale : même L2, même MAC. Elles doivent être **hors** du CIDR du segment, pour ne
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jamais croiser l'attribution automatique. Sur un switch, elles vont sur le bridge du
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segment ;
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* ``loopback`` — une adresse sur une interface ``dummy`` nommée ``lo1``
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(``loopback: 10.255.255.1/32``) ;
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* ``frr`` — le chemin d'un ``frr.conf``, relatif au fichier de topologie : FRR est installé
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au démarrage et la configuration déposée **telle quelle** (voir `Rôles`_).
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``mgmt0`` et ``lo1`` sont réservés : aucun segment ne peut porter ces noms.
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Ce que l'outil en déduit, de façon déterministe — même fichier, même plan :
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.. list-table::
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@ -257,11 +274,18 @@ Limites : 1000 nœuds, 256 segments, et autant de câbles que la plage UDP le pe
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hv1 hypervisor debian12 4 16384 MiB 127.0.0.1:2202
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hv2 hypervisor debian12 4 16384 MiB 127.0.0.1:2203
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segment underlay: 10.250.0.0/24, mtu 9000, switch sw1, bridge br-underlay, gateway 10.250.0.1
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node interface address mac udp switch port mac udp
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rr1 underlay 10.250.0.2/24 02:4c:00:01:00:00 20000 <-> sw1 p0 02:4c:00:01:00:01 20001
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hv1 underlay 10.250.0.3/24 02:4c:00:02:00:00 20002 <-> sw1 p1 02:4c:00:02:00:01 20003
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hv2 underlay 10.250.0.4/24 02:4c:00:03:00:00 20004 <-> sw1 p2 02:4c:00:03:00:01 20005
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roles
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name loopback secondary frr
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sw1 - underlay 169.254.0.1/28 sw1.conf
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rr1 lo1 10.255.255.1/32 underlay 169.254.0.3/28 rr1.conf
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hv1 - - hv1.conf
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hv2 - - hv2.conf
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segment underlay: 192.168.14.0/24, mtu 9000, switch sw1, bridge br-underlay, gateway 192.168.14.1
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node interface address mac udp switch port mac udp
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rr1 underlay 192.168.14.2/24 02:4c:00:01:00:00 20000 <-> sw1 p0 02:4c:00:01:00:01 20001
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hv1 underlay 192.168.14.11/24 02:4c:00:02:00:00 20002 <-> sw1 p1 02:4c:00:02:00:01 20003
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hv2 underlay 192.168.14.12/24 02:4c:00:03:00:00 20004 <-> sw1 p2 02:4c:00:03:00:01 20005
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Un fichier invalide est refusé avec **toutes** ses erreurs à la fois, et un code de sortie 1. Les
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champs inconnus et les clés en double sont refusés aussi :
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@ -274,8 +298,49 @@ champs inconnus et les clés en double sont refusés aussi :
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segment underlay: cidr 10.250.0.0/31 prefix length out of range [/8, /30]
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node sw1: switch carries no segment
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Les plages d'adresses de l'exemple sont des valeurs de travail : le plan d'adressage du lab reste à
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définir (#50).
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Les ASN, la loopback du route reflector, le lien ``169.254.0.0/28`` et le subnet des hyperviseurs
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de l'exemple sont **ceux de la production** (décision du 2026-10-04, #50) : les fichiers de
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``conf/lab/`` restent ainsi au plus près de ce qui tourne réellement. Toutes les adresses y sont
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**fixées** par ``addresses`` — le route reflector en ``.2``, les hyperviseurs à partir de ``.11`` —
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pour que le modèle se lise sans le plan et ne dépende pas de l'ordre de déclaration : le
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``frr.conf`` d'un hyperviseur, écrit à la main, porte son adresse en ``router-id``. Seul le switch
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n'en déclare pas : il porte toujours la passerelle, la première adresse du segment.
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Rôles
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~~~~~
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Les configurations FRR du lab vivent dans ``conf/lab/frr/``, une par nœud, **écrites à la main** :
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ce sont les mêmes fichiers que la documentation de déploiement inclut, pour que le lab qualifie
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exactement ce qu'elle prescrit. Celle du route reflector :
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.. literalinclude:: ../../conf/lab/frr/rr1.conf
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:language: text
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Au premier démarrage, cloud-init installe FRR (``frr-stable`` de ``deb.frrouting.org``, sans les
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paquets recommandés), active ``bgpd`` — et ``bfdd`` sur le switch et le route reflector —, puis
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dépose le ``frr.conf`` du nœud et redémarre FRR. La mise à jour des index de paquets est réessayée
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pendant cinq minutes : un nœud peut démarrer avant que le switch, par lequel il sort, n'ait posé
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son NAT.
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La **clé du dépôt FRR** n'est pas téléchargée au démarrage : elle est enregistrée dans ``lab``
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(``internal/lab/render/frrouting.gpg``) et déposée par cloud-init. Elle a été récupérée le
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2026-10-04 sur ``deb.frrouting.org`` ; les empreintes de ses clés primaires sont publiées sous la
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même valeur sur ``keys.openpgp.org`` et ``keyserver.ubuntu.com`` :
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.. code-block:: text
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3D99 68AC 9AE7 BE11 6928 8DDB 1FD5 8398 95F5 7FDA David Lamparter
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4A56 C773 8BB3 F815 95A8 05D2 A832 7699 08F1 3ED1 FRRouting Debian Repository
|
||||
A90F C36D 9429 4097 98E9 C2D8 74DE ED43 AB19 4DBF Jafar Al-Gharaibeh
|
||||
|
||||
Une clé renouvelée par FRR fera échouer l'installation (signature inconnue) : remplacer le fichier
|
||||
après avoir vérifié les nouvelles empreintes.
|
||||
|
||||
.. note::
|
||||
|
||||
La configuration du switch (``conf/lab/frr/sw1.conf``) **n'est pas celle des routeurs** : écrite
|
||||
pour l'essai du 2026-10-04, elle se contente d'établir la session avec le route reflector et de
|
||||
n'accepter que sa loopback. Elle sera remplacée par la configuration réelle des routeurs.
|
||||
|
||||
Rendu des VM
|
||||
------------
|
||||
|
|
|
|||
|
|
@ -72,7 +72,11 @@ func Prepare(ctx context.Context, p *topology.Plan, o Options) ([]render.Node, e
|
|||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
nodes, err := render.Render(p, render.Options{RunDir: o.RunDir, AuthorizedKeys: []string{key}})
|
||||
frr, err := ReadFRR(p)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
nodes, err := render.Render(p, render.Options{RunDir: o.RunDir, AuthorizedKeys: []string{key}, FRR: frr})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
|
@ -84,6 +88,21 @@ func Prepare(ctx context.Context, p *topology.Plan, o Options) ([]render.Node, e
|
|||
return nodes, nil
|
||||
}
|
||||
|
||||
func ReadFRR(p *topology.Plan) (map[string]string, error) {
|
||||
configs := map[string]string{}
|
||||
for _, n := range p.Nodes {
|
||||
if n.FRR == "" {
|
||||
continue
|
||||
}
|
||||
data, err := os.ReadFile(n.FRR)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("node %s: %w", n.Name, err)
|
||||
}
|
||||
configs[n.Name] = string(data)
|
||||
}
|
||||
return configs, nil
|
||||
}
|
||||
|
||||
func EnsureKey(ctx context.Context, r Runner, dir string) (string, error) {
|
||||
private := filepath.Join(dir, KeyFile)
|
||||
if _, err := os.Stat(private); errors.Is(err, os.ErrNotExist) {
|
||||
|
|
|
|||
|
|
@ -315,3 +315,73 @@ func TestEnsureKey_WithTheRealSSHKeygen(t *testing.T) {
|
|||
t.Errorf("private key mode = %v, %v", info.Mode().Perm(), err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestReadFRR_ReadsOnlyTheNodesThatDeclareOne(t *testing.T) {
|
||||
dir := t.TempDir()
|
||||
conf := filepath.Join(dir, "rr1.conf")
|
||||
if err := os.WriteFile(conf, []byte("hostname rr1\n"), 0o600); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
m := newMirror(t)
|
||||
p := labPlan(t, m)
|
||||
p.Nodes[1].FRR = conf
|
||||
|
||||
got, err := ReadFRR(p)
|
||||
|
||||
if err != nil || !reflect.DeepEqual(got, map[string]string{"rr1": "hostname rr1\n"}) {
|
||||
t.Errorf("ReadFRR = %q, %v", got, err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestReadFRR_NamesTheNodeOfAMissingFile(t *testing.T) {
|
||||
m := newMirror(t)
|
||||
p := labPlan(t, m)
|
||||
p.Nodes[2].FRR = filepath.Join(t.TempDir(), "absent.conf")
|
||||
|
||||
if _, err := ReadFRR(p); err == nil || !strings.Contains(err.Error(), "node hv1: ") || !strings.Contains(err.Error(), "absent.conf") {
|
||||
t.Errorf("error = %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestPrepare_PutsTheFRRConfigIntoTheSeed(t *testing.T) {
|
||||
m := newMirror(t)
|
||||
publish(m, []byte("qcow2 image"))
|
||||
root := t.TempDir()
|
||||
conf := filepath.Join(root, "hv1.conf")
|
||||
if err := os.WriteFile(conf, []byte("hostname hv1\n"), 0o600); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
p := labPlan(t, m)
|
||||
p.Nodes[2].FRR = conf
|
||||
|
||||
nodes, err := Prepare(context.Background(), p, Options{
|
||||
RunDir: filepath.Join(root, "run"),
|
||||
Fetcher: Fetcher{Client: m.server.Client(), CacheDir: filepath.Join(root, "cache")},
|
||||
Runner: &fakeRunner{},
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("Prepare: %v", err)
|
||||
}
|
||||
data, err := os.ReadFile(filepath.Join(nodes[2].Dir, "user-data"))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
var cfg struct {
|
||||
Files []struct {
|
||||
Path string `yaml:"path"`
|
||||
Content string `yaml:"content"`
|
||||
} `yaml:"write_files"`
|
||||
}
|
||||
if err := yaml.Unmarshal(data, &cfg); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
for _, f := range cfg.Files {
|
||||
if f.Path == "/etc/lab/frr.conf" {
|
||||
if f.Content != "hostname hv1\n" {
|
||||
t.Errorf("frr.conf = %q", f.Content)
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
t.Errorf("hv1 user-data has no /etc/lab/frr.conf:\n%s", data)
|
||||
}
|
||||
|
|
|
|||
BIN
internal/lab/render/frrouting.gpg
Normal file
BIN
internal/lab/render/frrouting.gpg
Normal file
Binary file not shown.
|
|
@ -30,6 +30,7 @@ var Nameservers = []string{"1.1.1.1", "8.8.8.8"}
|
|||
type Options struct {
|
||||
RunDir string
|
||||
AuthorizedKeys []string
|
||||
FRR map[string]string
|
||||
}
|
||||
|
||||
type Node struct {
|
||||
|
|
@ -45,6 +46,11 @@ func Render(p *topology.Plan, o Options) ([]Node, error) {
|
|||
if err := o.validate(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for _, n := range p.Nodes {
|
||||
if _, ok := o.FRR[n.Name]; n.FRR != "" && !ok {
|
||||
return nil, fmt.Errorf("node %s: frr configuration %s was not read", n.Name, n.FRR)
|
||||
}
|
||||
}
|
||||
var nodes []Node
|
||||
for index, n := range p.Nodes {
|
||||
dir := filepath.Join(o.RunDir, n.Name)
|
||||
|
|
@ -52,7 +58,7 @@ func Render(p *topology.Plan, o Options) ([]Node, error) {
|
|||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
user, err := userData(p, n, o.AuthorizedKeys)
|
||||
user, err := userData(p, n, o)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
|
|
|||
188
internal/lab/render/roles_test.go
Normal file
188
internal/lab/render/roles_test.go
Normal file
|
|
@ -0,0 +1,188 @@
|
|||
package render
|
||||
|
||||
import (
|
||||
"crypto/sha256"
|
||||
"encoding/base64"
|
||||
"encoding/hex"
|
||||
"reflect"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
const withRoles = `name: evpn-2hv
|
||||
images:
|
||||
deb:
|
||||
url: https://example.invalid/deb.qcow2
|
||||
sums: https://example.invalid/SHA512SUMS
|
||||
segments:
|
||||
underlay: { switch: sw1, cidr: 192.168.14.0/24 }
|
||||
nodes:
|
||||
sw1: { role: switch, image: deb, cpus: 2, memory: 1024, secondary: { underlay: [169.254.0.1/28] }, frr: sw1.conf }
|
||||
rr1: { role: rr, image: deb, cpus: 1, memory: 1024, segments: [underlay], secondary: { underlay: [169.254.0.3/28] }, loopback: 10.255.255.1/32, frr: rr1.conf }
|
||||
hv1: { role: hypervisor, image: deb, cpus: 4, memory: 16384, segments: [underlay], frr: hv1.conf }
|
||||
hv2: { role: hypervisor, image: deb, cpus: 4, memory: 16384, segments: [underlay] }
|
||||
`
|
||||
|
||||
var frrConfigs = map[string]string{
|
||||
"sw1": "hostname sw1\nrouter bgp 65100\n",
|
||||
"rr1": "hostname rr1\nrouter bgp 65000\n",
|
||||
"hv1": "hostname hv1\nrouter bgp 64600\n",
|
||||
}
|
||||
|
||||
func renderRoles(t *testing.T) map[string]Node {
|
||||
t.Helper()
|
||||
nodes, err := Render(plan(t, withRoles), Options{RunDir: "/srv/lab", AuthorizedKeys: []string{labKey}, FRR: frrConfigs})
|
||||
if err != nil {
|
||||
t.Fatalf("Render: %v", err)
|
||||
}
|
||||
out := map[string]Node{}
|
||||
for _, n := range nodes {
|
||||
out[n.Name] = n
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func runcmd(t *testing.T, n Node) []string {
|
||||
t.Helper()
|
||||
var out []string
|
||||
for _, c := range user(t, n).Runcmd {
|
||||
out = append(out, strings.Join(c, " "))
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
const frrScriptHead = `#!/bin/sh
|
||||
set -eu
|
||||
export DEBIAN_FRONTEND=noninteractive
|
||||
. /etc/os-release
|
||||
echo "deb [signed-by=/usr/share/keyrings/frrouting.gpg] https://deb.frrouting.org/frr ${VERSION_CODENAME} frr-stable" > /etc/apt/sources.list.d/frr.list
|
||||
n=0
|
||||
until apt-get update -qq --error-on=any; do
|
||||
n=$((n + 1))
|
||||
[ "$n" -lt 30 ] || exit 1
|
||||
sleep 10
|
||||
done
|
||||
apt-get install -y -qq --no-install-recommends frr frr-pythontools
|
||||
sed -i 's/^bgpd=no/bgpd=yes/' /etc/frr/daemons
|
||||
`
|
||||
|
||||
func TestRoles_SecondaryAddressFollowsThePrimaryOnTheNode(t *testing.T) {
|
||||
doc := network(t, nodeNamed(t, renderRoles(t), "rr1"))
|
||||
got := iface(t, doc, "underlay").Addresses
|
||||
if !reflect.DeepEqual(got, []string{"192.168.14.2/24", "169.254.0.3/28"}) {
|
||||
t.Errorf("rr1 underlay addresses = %v", got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_SwitchCarriesItsSecondaryOnTheBridge(t *testing.T) {
|
||||
script := fileAt(t, user(t, nodeNamed(t, renderRoles(t), "sw1")), "/usr/local/sbin/lab-switch").Content
|
||||
want := "ip addr replace 192.168.14.1/24 dev br-underlay\nip addr replace 169.254.0.1/28 dev br-underlay\nip link set dev br-underlay up\n"
|
||||
if !strings.Contains(script, want) {
|
||||
t.Errorf("lab-switch:\n%s\ndoes not contain:\n%s", script, want)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_LoopbackOnADummyInterfaceReplayedAtBoot(t *testing.T) {
|
||||
rr1 := nodeNamed(t, renderRoles(t), "rr1")
|
||||
cfg := user(t, rr1)
|
||||
|
||||
script := fileAt(t, cfg, "/usr/local/sbin/lab-node")
|
||||
want := "#!/bin/sh\nset -eu\nip link add lo1 type dummy 2>/dev/null || true\nip addr replace 10.255.255.1/32 dev lo1\nip link set dev lo1 up\n"
|
||||
if script.Content != want || script.Permissions != "0755" {
|
||||
t.Errorf("lab-node (%s):\n%s", script.Permissions, script.Content)
|
||||
}
|
||||
unit := fileAt(t, cfg, "/etc/systemd/system/lab-node.service").Content
|
||||
if !strings.Contains(unit, "ExecStart=/usr/local/sbin/lab-node\n") || !strings.Contains(unit, "WantedBy=multi-user.target\n") {
|
||||
t.Errorf("lab-node.service:\n%s", unit)
|
||||
}
|
||||
wantCmds := []string{"systemctl daemon-reload", "systemctl enable --now lab-node.service", "/usr/local/sbin/lab-frr"}
|
||||
if got := runcmd(t, rr1); !reflect.DeepEqual(got, wantCmds) {
|
||||
t.Errorf("runcmd = %q, want %q", got, wantCmds)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_FRRConfigIsWrittenVerbatimAndPrivately(t *testing.T) {
|
||||
for _, name := range []string{"sw1", "rr1", "hv1"} {
|
||||
f := fileAt(t, user(t, nodeNamed(t, renderRoles(t), name)), "/etc/lab/frr.conf")
|
||||
if f.Content != frrConfigs[name] || f.Permissions != "0640" {
|
||||
t.Errorf("%s frr.conf (%s) = %q", name, f.Permissions, f.Content)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_FRRDaemonsDependOnTheRole(t *testing.T) {
|
||||
tail := "install -o frr -g frr -m 0640 /etc/lab/frr.conf /etc/frr/frr.conf\nsystemctl restart frr\n"
|
||||
bfd := "sed -i 's/^bfdd=no/bfdd=yes/' /etc/frr/daemons\n"
|
||||
nodes := renderRoles(t)
|
||||
for name, want := range map[string]string{
|
||||
"sw1": frrScriptHead + bfd + tail,
|
||||
"rr1": frrScriptHead + bfd + tail,
|
||||
"hv1": frrScriptHead + tail,
|
||||
} {
|
||||
f := fileAt(t, user(t, nodeNamed(t, nodes, name)), "/usr/local/sbin/lab-frr")
|
||||
if f.Content != want || f.Permissions != "0755" {
|
||||
t.Errorf("%s lab-frr (%s):\n%s\nwant:\n%s", name, f.Permissions, f.Content, want)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_FRRKeyIsThePinnedRepositoryKey(t *testing.T) {
|
||||
f := fileAt(t, user(t, nodeNamed(t, renderRoles(t), "hv1")), "/usr/share/keyrings/frrouting.gpg")
|
||||
if f.Encoding != "b64" || f.Permissions != "0644" {
|
||||
t.Errorf("key file: encoding %q, permissions %q", f.Encoding, f.Permissions)
|
||||
}
|
||||
key, err := base64.StdEncoding.DecodeString(f.Content)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
sum := sha256.Sum256(key)
|
||||
if got := hex.EncodeToString(sum[:]); got != "bf10935b9296e2ce7c5d9855fa29ef30c35810b0fc4b1f53005494a04a33554d" {
|
||||
t.Errorf("key sha256 = %s", got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_FRRInstallRunsLast(t *testing.T) {
|
||||
nodes := renderRoles(t)
|
||||
for name, want := range map[string][]string{
|
||||
"sw1": {"systemctl daemon-reload", "systemctl enable --now lab-switch.service", "/usr/local/sbin/lab-frr"},
|
||||
"hv1": {"/usr/local/sbin/lab-frr"},
|
||||
} {
|
||||
if got := runcmd(t, nodeNamed(t, nodes, name)); !reflect.DeepEqual(got, want) {
|
||||
t.Errorf("%s runcmd = %q, want %q", name, got, want)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_NodeWithoutRoleFieldsGetsNothingExtra(t *testing.T) {
|
||||
cfg := user(t, nodeNamed(t, renderRoles(t), "hv2"))
|
||||
if len(cfg.WriteFiles) != 0 || len(cfg.Runcmd) != 0 {
|
||||
t.Errorf("hv2 write_files %d, runcmd %q", len(cfg.WriteFiles), cfg.Runcmd)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_RefusesAnUnreadFRRConfig(t *testing.T) {
|
||||
configs := map[string]string{"sw1": "x", "rr1": "y"}
|
||||
_, err := Render(plan(t, withRoles), Options{RunDir: "/srv/lab", AuthorizedKeys: []string{labKey}, FRR: configs})
|
||||
if err == nil || err.Error() != "node hv1: frr configuration hv1.conf was not read" {
|
||||
t.Errorf("error = %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRoles_SwitchLoopbackIsCreatedByTheSwitchScript(t *testing.T) {
|
||||
doc := strings.Replace(withRoles, "secondary: { underlay: [169.254.0.1/28] }, frr: sw1.conf", "secondary: { underlay: [169.254.0.1/28] }, loopback: 10.255.254.1/32, frr: sw1.conf", 1)
|
||||
nodes, err := Render(plan(t, doc), Options{RunDir: "/srv/lab", AuthorizedKeys: []string{labKey}, FRR: frrConfigs})
|
||||
if err != nil {
|
||||
t.Fatalf("Render: %v", err)
|
||||
}
|
||||
var sw1 Node
|
||||
for _, n := range nodes {
|
||||
if n.Name == "sw1" {
|
||||
sw1 = n
|
||||
}
|
||||
}
|
||||
script := fileAt(t, user(t, sw1), "/usr/local/sbin/lab-switch").Content
|
||||
want := "ip link set dev br-underlay up\nip link add lo1 type dummy 2>/dev/null || true\nip addr replace 10.255.254.1/32 dev lo1\nip link set dev lo1 up\nnft -f /etc/lab-switch.nft\n"
|
||||
if !strings.HasSuffix(script, want) {
|
||||
t.Errorf("lab-switch:\n%s\ndoes not end with:\n%s", script, want)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,6 +1,8 @@
|
|||
package render
|
||||
|
||||
import (
|
||||
_ "embed"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
|
|
@ -13,8 +15,21 @@ const (
|
|||
SwitchScript = "/usr/local/sbin/lab-switch"
|
||||
SwitchNFT = "/etc/lab-switch.nft"
|
||||
SwitchUnit = "/etc/systemd/system/lab-switch.service"
|
||||
|
||||
NodeScript = "/usr/local/sbin/lab-node"
|
||||
NodeUnit = "/etc/systemd/system/lab-node.service"
|
||||
|
||||
FRRKey = "/usr/share/keyrings/frrouting.gpg"
|
||||
FRRConfig = "/etc/lab/frr.conf"
|
||||
FRRScript = "/usr/local/sbin/lab-frr"
|
||||
FRRSuite = "frr-stable"
|
||||
FRRRepo = "https://deb.frrouting.org/frr"
|
||||
FRRPackages = "frr frr-pythontools"
|
||||
)
|
||||
|
||||
//go:embed frrouting.gpg
|
||||
var frrKey []byte
|
||||
|
||||
type metaDoc struct {
|
||||
InstanceID string `yaml:"instance-id"`
|
||||
LocalHostname string `yaml:"local-hostname"`
|
||||
|
|
@ -23,6 +38,7 @@ type metaDoc struct {
|
|||
type writeFile struct {
|
||||
Path string `yaml:"path"`
|
||||
Permissions string `yaml:"permissions"`
|
||||
Encoding string `yaml:"encoding,omitempty"`
|
||||
Content string `yaml:"content"`
|
||||
}
|
||||
|
||||
|
|
@ -68,24 +84,42 @@ func metaData(p *topology.Plan, n topology.NodePlan) ([]byte, error) {
|
|||
return yaml.Marshal(metaDoc{InstanceID: p.Name + "-" + n.Name, LocalHostname: n.Name})
|
||||
}
|
||||
|
||||
func userData(p *topology.Plan, n topology.NodePlan, keys []string) ([]byte, error) {
|
||||
func userData(p *topology.Plan, n topology.NodePlan, o Options) ([]byte, error) {
|
||||
cfg := cloudConfig{
|
||||
Hostname: n.Name,
|
||||
SSHPwauth: false,
|
||||
DisableRoot: true,
|
||||
SSHAuthorizedKeys: keys,
|
||||
SSHAuthorizedKeys: o.AuthorizedKeys,
|
||||
}
|
||||
if n.Role == topology.RoleSwitch {
|
||||
switch {
|
||||
case n.Role == topology.RoleSwitch:
|
||||
cfg.Packages = []string{"nftables"}
|
||||
cfg.WriteFiles = []writeFile{
|
||||
{Path: SwitchScript, Permissions: "0755", Content: switchScript(p, n.Name)},
|
||||
{Path: SwitchScript, Permissions: "0755", Content: switchScript(p, n)},
|
||||
{Path: SwitchNFT, Permissions: "0644", Content: switchNFT(p, n.Name)},
|
||||
{Path: SwitchUnit, Permissions: "0644", Content: switchUnit()},
|
||||
{Path: SwitchUnit, Permissions: "0644", Content: unit("Lab switch: bridges, gateways and NAT", SwitchScript)},
|
||||
}
|
||||
cfg.Runcmd = [][]string{
|
||||
{"systemctl", "daemon-reload"},
|
||||
{"systemctl", "enable", "--now", "lab-switch.service"},
|
||||
}
|
||||
case n.Loopback.IsValid():
|
||||
cfg.WriteFiles = []writeFile{
|
||||
{Path: NodeScript, Permissions: "0755", Content: "#!/bin/sh\nset -eu\n" + loopbackLines(n)},
|
||||
{Path: NodeUnit, Permissions: "0644", Content: unit("Lab node: loopback", NodeScript)},
|
||||
}
|
||||
cfg.Runcmd = [][]string{
|
||||
{"systemctl", "daemon-reload"},
|
||||
{"systemctl", "enable", "--now", "lab-node.service"},
|
||||
}
|
||||
}
|
||||
if n.FRR != "" {
|
||||
cfg.WriteFiles = append(cfg.WriteFiles,
|
||||
writeFile{Path: FRRKey, Permissions: "0644", Encoding: "b64", Content: base64.StdEncoding.EncodeToString(frrKey)},
|
||||
writeFile{Path: FRRConfig, Permissions: "0640", Content: o.FRR[n.Name]},
|
||||
writeFile{Path: FRRScript, Permissions: "0755", Content: frrScript(n)},
|
||||
)
|
||||
cfg.Runcmd = append(cfg.Runcmd, []string{FRRScript})
|
||||
}
|
||||
body, err := yaml.Marshal(cfg)
|
||||
if err != nil {
|
||||
|
|
@ -94,6 +128,35 @@ func userData(p *topology.Plan, n topology.NodePlan, keys []string) ([]byte, err
|
|||
return append([]byte("#cloud-config\n"), body...), nil
|
||||
}
|
||||
|
||||
func frrDaemons(n topology.NodePlan) []string {
|
||||
if n.Role == topology.RoleHypervisor {
|
||||
return []string{"bgpd"}
|
||||
}
|
||||
return []string{"bgpd", "bfdd"}
|
||||
}
|
||||
|
||||
func frrScript(n topology.NodePlan) string {
|
||||
var b strings.Builder
|
||||
b.WriteString("#!/bin/sh\nset -eu\nexport DEBIAN_FRONTEND=noninteractive\n. /etc/os-release\n")
|
||||
fmt.Fprintf(&b, "echo \"deb [signed-by=%s] %s ${VERSION_CODENAME} %s\" > /etc/apt/sources.list.d/frr.list\n", FRRKey, FRRRepo, FRRSuite)
|
||||
b.WriteString("n=0\nuntil apt-get update -qq --error-on=any; do\n n=$((n + 1))\n [ \"$n\" -lt 30 ] || exit 1\n sleep 10\ndone\n")
|
||||
fmt.Fprintf(&b, "apt-get install -y -qq --no-install-recommends %s\n", FRRPackages)
|
||||
for _, d := range frrDaemons(n) {
|
||||
fmt.Fprintf(&b, "sed -i 's/^%s=no/%s=yes/' /etc/frr/daemons\n", d, d)
|
||||
}
|
||||
fmt.Fprintf(&b, "install -o frr -g frr -m 0640 %s /etc/frr/frr.conf\n", FRRConfig)
|
||||
b.WriteString("systemctl restart frr\n")
|
||||
return b.String()
|
||||
}
|
||||
|
||||
func loopbackLines(n topology.NodePlan) string {
|
||||
if !n.Loopback.IsValid() {
|
||||
return ""
|
||||
}
|
||||
return fmt.Sprintf("ip link add %s type dummy 2>/dev/null || true\nip addr replace %s dev %s\nip link set dev %s up\n",
|
||||
topology.LoopbackInterface, n.Loopback, topology.LoopbackInterface, topology.LoopbackInterface)
|
||||
}
|
||||
|
||||
func networkConfig(p *topology.Plan, n topology.NodePlan, index int) ([]byte, error) {
|
||||
doc := networkDoc{Version: 2, Ethernets: map[string]ethernet{}}
|
||||
admin := ethernet{
|
||||
|
|
@ -121,6 +184,9 @@ func networkConfig(p *topology.Plan, n topology.NodePlan, index int) ([]byte, er
|
|||
MTU: c.MTU,
|
||||
Addresses: []string{c.NodeAddress.String()},
|
||||
}
|
||||
for _, prefix := range n.Secondary[c.Segment] {
|
||||
e.Addresses = append(e.Addresses, prefix.String())
|
||||
}
|
||||
if i == 0 {
|
||||
e.Routes = []route{{To: "0.0.0.0/0", Via: gatewayOf(p, c.Segment)}}
|
||||
e.Nameservers = &nameservers{Addresses: Nameservers}
|
||||
|
|
@ -139,7 +205,8 @@ func gatewayOf(p *topology.Plan, segment string) string {
|
|||
return ""
|
||||
}
|
||||
|
||||
func switchScript(p *topology.Plan, name string) string {
|
||||
func switchScript(p *topology.Plan, n topology.NodePlan) string {
|
||||
name := n.Name
|
||||
var b strings.Builder
|
||||
b.WriteString("#!/bin/sh\nset -eu\nsysctl -qw net.ipv4.ip_forward=1\n")
|
||||
for _, s := range switchSegments(p, name) {
|
||||
|
|
@ -153,8 +220,12 @@ func switchScript(p *topology.Plan, name string) string {
|
|||
}
|
||||
fmt.Fprintf(&b, "ip link set dev %s mtu %d\n", s.Bridge, s.MTU)
|
||||
fmt.Fprintf(&b, "ip addr replace %s/%d dev %s\n", s.Gateway, s.Network.Bits(), s.Bridge)
|
||||
for _, prefix := range n.Secondary[s.Name] {
|
||||
fmt.Fprintf(&b, "ip addr replace %s dev %s\n", prefix, s.Bridge)
|
||||
}
|
||||
fmt.Fprintf(&b, "ip link set dev %s up\n", s.Bridge)
|
||||
}
|
||||
b.WriteString(loopbackLines(n))
|
||||
fmt.Fprintf(&b, "nft -f %s\n", SwitchNFT)
|
||||
return b.String()
|
||||
}
|
||||
|
|
@ -175,9 +246,9 @@ table ip lab_nat {
|
|||
`, strings.Join(networks, ", "), AdminInterface)
|
||||
}
|
||||
|
||||
func switchUnit() string {
|
||||
func unit(description, script string) string {
|
||||
return fmt.Sprintf(`[Unit]
|
||||
Description=Lab switch: bridges, gateways and NAT
|
||||
Description=%s
|
||||
Wants=network-online.target
|
||||
After=network-online.target
|
||||
|
||||
|
|
@ -188,5 +259,5 @@ ExecStart=%s
|
|||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
`, SwitchScript)
|
||||
`, description, script)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3,6 +3,9 @@ package topology
|
|||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"strings"
|
||||
"text/tabwriter"
|
||||
)
|
||||
|
||||
|
|
@ -17,6 +20,20 @@ func (p *Plan) Write(w io.Writer) error {
|
|||
fmt.Fprintf(tw, " %s\t%s\t%s\t%d\t%d MiB\t127.0.0.1:%d\n", n.Name, n.Role, n.Image, n.CPUs, n.Memory, n.SSHPort)
|
||||
}
|
||||
|
||||
var extras []NodePlan
|
||||
for _, n := range p.Nodes {
|
||||
if len(n.Secondary) > 0 || n.Loopback.IsValid() || n.FRR != "" {
|
||||
extras = append(extras, n)
|
||||
}
|
||||
}
|
||||
if len(extras) > 0 {
|
||||
fmt.Fprintf(tw, "\nroles\n")
|
||||
fmt.Fprintf(tw, " name\tloopback\tsecondary\tfrr\n")
|
||||
for _, n := range extras {
|
||||
fmt.Fprintf(tw, " %s\t%s\t%s\t%s\n", n.Name, orDash(loopback(n)), orDash(secondary(n)), orDash(filepath.Base(n.FRR)))
|
||||
}
|
||||
}
|
||||
|
||||
for _, s := range p.Segments {
|
||||
fmt.Fprintf(tw, "\nsegment %s: %s, mtu %d, switch %s, bridge %s, gateway %s\n",
|
||||
s.Name, s.Network, s.MTU, s.Switch, s.Bridge, s.Gateway)
|
||||
|
|
@ -32,3 +49,32 @@ func (p *Plan) Write(w io.Writer) error {
|
|||
}
|
||||
return tw.Flush()
|
||||
}
|
||||
|
||||
func loopback(n NodePlan) string {
|
||||
if !n.Loopback.IsValid() {
|
||||
return ""
|
||||
}
|
||||
return LoopbackInterface + " " + n.Loopback.String()
|
||||
}
|
||||
|
||||
func secondary(n NodePlan) string {
|
||||
segments := make([]string, 0, len(n.Secondary))
|
||||
for s := range n.Secondary {
|
||||
segments = append(segments, s)
|
||||
}
|
||||
sort.Strings(segments)
|
||||
var parts []string
|
||||
for _, s := range segments {
|
||||
for _, prefix := range n.Secondary[s] {
|
||||
parts = append(parts, s+" "+prefix.String())
|
||||
}
|
||||
}
|
||||
return strings.Join(parts, ", ")
|
||||
}
|
||||
|
||||
func orDash(s string) string {
|
||||
if s == "" || s == "." {
|
||||
return "-"
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
|
|
|||
|
|
@ -34,12 +34,15 @@ type SegmentPlan struct {
|
|||
}
|
||||
|
||||
type NodePlan struct {
|
||||
Name string
|
||||
Role string
|
||||
Image string
|
||||
CPUs int
|
||||
Memory int
|
||||
SSHPort int
|
||||
Name string
|
||||
Role string
|
||||
Image string
|
||||
CPUs int
|
||||
Memory int
|
||||
SSHPort int
|
||||
Secondary map[string][]netip.Prefix
|
||||
Loopback netip.Prefix
|
||||
FRR string
|
||||
}
|
||||
|
||||
type Cable struct {
|
||||
|
|
@ -65,14 +68,27 @@ func Compute(t *Topology) (*Plan, error) {
|
|||
|
||||
p := &Plan{Name: t.Name, Images: append([]Image(nil), t.Images...)}
|
||||
for i, n := range t.Nodes {
|
||||
p.Nodes = append(p.Nodes, NodePlan{
|
||||
node := NodePlan{
|
||||
Name: n.Name,
|
||||
Role: n.Role,
|
||||
Image: n.Image,
|
||||
CPUs: n.CPUs,
|
||||
Memory: n.Memory,
|
||||
SSHPort: SSHBasePort + i,
|
||||
})
|
||||
FRR: n.FRR,
|
||||
}
|
||||
for segment, raws := range n.Secondary {
|
||||
for _, raw := range raws {
|
||||
if node.Secondary == nil {
|
||||
node.Secondary = map[string][]netip.Prefix{}
|
||||
}
|
||||
node.Secondary[segment] = append(node.Secondary[segment], netip.MustParsePrefix(raw))
|
||||
}
|
||||
}
|
||||
if n.Loopback != "" {
|
||||
node.Loopback = netip.MustParsePrefix(n.Loopback)
|
||||
}
|
||||
p.Nodes = append(p.Nodes, node)
|
||||
}
|
||||
|
||||
var errs []error
|
||||
|
|
|
|||
163
internal/lab/topology/roles_test.go
Normal file
163
internal/lab/topology/roles_test.go
Normal file
|
|
@ -0,0 +1,163 @@
|
|||
package topology
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"net/netip"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
const withRoles = header + `
|
||||
segments:
|
||||
underlay: { switch: sw1, cidr: 192.168.14.0/24 }
|
||||
nodes:
|
||||
sw1: { role: switch, image: deb, cpus: 2, memory: 1024, secondary: { underlay: [169.254.0.1/28] }, frr: frr/sw1.conf }
|
||||
rr1: { role: rr, image: deb, cpus: 1, memory: 1024, segments: [underlay], secondary: { underlay: [169.254.0.3/28] }, loopback: 10.255.255.1/32, frr: frr/rr1.conf }
|
||||
hv1: { role: hypervisor, image: deb, cpus: 4, memory: 16384, segments: [underlay], frr: /etc/lab/hv1.conf }
|
||||
`
|
||||
|
||||
func TestCompute_CarriesTheRoleFields(t *testing.T) {
|
||||
p := compute(t, withRoles)
|
||||
|
||||
rr1 := nodeOf(t, p, "rr1")
|
||||
if !reflect.DeepEqual(rr1.Secondary, map[string][]netip.Prefix{"underlay": {netip.MustParsePrefix("169.254.0.3/28")}}) {
|
||||
t.Errorf("rr1 secondary = %v", rr1.Secondary)
|
||||
}
|
||||
if rr1.Loopback != netip.MustParsePrefix("10.255.255.1/32") {
|
||||
t.Errorf("rr1 loopback = %v", rr1.Loopback)
|
||||
}
|
||||
if rr1.FRR != "frr/rr1.conf" {
|
||||
t.Errorf("rr1 frr = %q", rr1.FRR)
|
||||
}
|
||||
hv1 := nodeOf(t, p, "hv1")
|
||||
if hv1.Secondary != nil || hv1.Loopback.IsValid() {
|
||||
t.Errorf("hv1 = %+v, want no secondary and no loopback", hv1)
|
||||
}
|
||||
}
|
||||
|
||||
func TestLoad_ResolvesFRRPathsAgainstTheTopologyFile(t *testing.T) {
|
||||
dir := t.TempDir()
|
||||
path := filepath.Join(dir, "lab.yml")
|
||||
if err := os.WriteFile(path, []byte(withRoles), 0o600); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
topo, err := Load(path)
|
||||
if err != nil {
|
||||
t.Fatalf("Load: %v", err)
|
||||
}
|
||||
|
||||
want := map[string]string{
|
||||
"sw1": filepath.Join(dir, "frr", "sw1.conf"),
|
||||
"rr1": filepath.Join(dir, "frr", "rr1.conf"),
|
||||
"hv1": "/etc/lab/hv1.conf",
|
||||
}
|
||||
for _, n := range topo.Nodes {
|
||||
if n.FRR != want[n.Name] {
|
||||
t.Errorf("%s frr = %q, want %q", n.Name, n.FRR, want[n.Name])
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestValidate_RoleFieldRejections(t *testing.T) {
|
||||
cases := map[string]struct {
|
||||
node string
|
||||
want string
|
||||
}{
|
||||
"secondary on a segment not attached": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], secondary: { blue: [169.254.0.3/28] } }`,
|
||||
"node rr1: secondary address given for segment blue it is not attached to",
|
||||
},
|
||||
"secondary without prefix length": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], secondary: { red: [169.254.0.3] } }`,
|
||||
`node rr1: secondary address "169.254.0.3" on red`,
|
||||
},
|
||||
"secondary in IPv6": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], secondary: { red: ["fd00::3/64"] } }`,
|
||||
"node rr1: secondary address fd00::3/64 on red is not IPv4",
|
||||
},
|
||||
"secondary inside the segment": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], secondary: { red: [10.1.0.9/24] } }`,
|
||||
"node rr1: secondary address 10.1.0.9/24 is inside segment red (10.1.0.0/24), use addresses instead",
|
||||
},
|
||||
"loopback without prefix length": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], loopback: 10.255.255.1 }`,
|
||||
`node rr1: loopback "10.255.255.1"`,
|
||||
},
|
||||
"loopback in IPv6": {
|
||||
`rr1: { role: rr, image: deb, cpus: 1, memory: 512, segments: [red], loopback: "fd00::1/128" }`,
|
||||
"node rr1: loopback fd00::1/128 is not IPv4",
|
||||
},
|
||||
}
|
||||
for name, c := range cases {
|
||||
t.Run(name, func(t *testing.T) {
|
||||
doc := header + `
|
||||
segments:
|
||||
red: { switch: sw, cidr: 10.1.0.0/24 }
|
||||
blue: { switch: sw, cidr: 10.2.0.0/24 }
|
||||
nodes:
|
||||
sw: { role: switch, image: deb, cpus: 1, memory: 512 }
|
||||
hv: { role: hypervisor, image: deb, cpus: 1, memory: 512, segments: [red, blue] }
|
||||
` + c.node + `
|
||||
`
|
||||
requireContains(t, validationError(t, doc), c.want)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestValidate_SwitchSecondaryOnlyOnItsOwnSegments(t *testing.T) {
|
||||
doc := header + `
|
||||
segments:
|
||||
red: { switch: sw, cidr: 10.1.0.0/24 }
|
||||
blue: { switch: other, cidr: 10.2.0.0/24 }
|
||||
nodes:
|
||||
sw: { role: switch, image: deb, cpus: 1, memory: 512, secondary: { red: [169.254.0.1/28], blue: [169.254.1.1/28] } }
|
||||
other: { role: switch, image: deb, cpus: 1, memory: 512 }
|
||||
hv: { role: hypervisor, image: deb, cpus: 1, memory: 512, segments: [red, blue] }
|
||||
`
|
||||
msg := validationError(t, doc)
|
||||
requireContains(t, msg, "node sw: secondary address given for segment blue it is not attached to")
|
||||
if bytes.Contains([]byte(msg), []byte("segment red")) {
|
||||
t.Errorf("the switch's own segment was refused:\n%s", msg)
|
||||
}
|
||||
}
|
||||
|
||||
func TestValidate_LoopbackInterfaceNameIsReserved(t *testing.T) {
|
||||
doc := header + `
|
||||
segments:
|
||||
lo1: { switch: sw, cidr: 10.1.0.0/24 }
|
||||
nodes:
|
||||
sw: { role: switch, image: deb, cpus: 1, memory: 512 }
|
||||
hv: { role: hypervisor, image: deb, cpus: 1, memory: 512, segments: [lo1] }
|
||||
`
|
||||
requireContains(t, validationError(t, doc), "segment lo1: name is reserved for the loopback interface")
|
||||
}
|
||||
|
||||
func TestWrite_ShowsTheRoles(t *testing.T) {
|
||||
var buf bytes.Buffer
|
||||
if err := compute(t, withRoles).Write(&buf); err != nil {
|
||||
t.Fatalf("Write: %v", err)
|
||||
}
|
||||
want := `
|
||||
roles
|
||||
name loopback secondary frr
|
||||
sw1 - underlay 169.254.0.1/28 sw1.conf
|
||||
rr1 lo1 10.255.255.1/32 underlay 169.254.0.3/28 rr1.conf
|
||||
hv1 - - hv1.conf
|
||||
`
|
||||
if !bytes.Contains(buf.Bytes(), []byte(want)) {
|
||||
t.Errorf("plan:\n%s\ndoes not contain:\n%s", buf.String(), want)
|
||||
}
|
||||
}
|
||||
|
||||
func TestWrite_NoRolesSectionWithoutRoleFields(t *testing.T) {
|
||||
var buf bytes.Buffer
|
||||
if err := compute(t, twoHypervisors).Write(&buf); err != nil {
|
||||
t.Fatalf("Write: %v", err)
|
||||
}
|
||||
if bytes.Contains(buf.Bytes(), []byte("roles")) {
|
||||
t.Errorf("plan shows a roles section:\n%s", buf.String())
|
||||
}
|
||||
}
|
||||
|
|
@ -5,6 +5,7 @@ import (
|
|||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"go.yaml.in/yaml/v3"
|
||||
)
|
||||
|
|
@ -45,6 +46,9 @@ type Node struct {
|
|||
Memory int
|
||||
Segments []string
|
||||
Addresses map[string]string
|
||||
Secondary map[string][]string
|
||||
Loopback string
|
||||
FRR string
|
||||
}
|
||||
|
||||
type fileImage struct {
|
||||
|
|
@ -59,12 +63,15 @@ type fileSegment struct {
|
|||
}
|
||||
|
||||
type fileNode struct {
|
||||
Role string `yaml:"role"`
|
||||
Image string `yaml:"image"`
|
||||
CPUs int `yaml:"cpus"`
|
||||
Memory int `yaml:"memory"`
|
||||
Segments []string `yaml:"segments"`
|
||||
Addresses map[string]string `yaml:"addresses"`
|
||||
Role string `yaml:"role"`
|
||||
Image string `yaml:"image"`
|
||||
CPUs int `yaml:"cpus"`
|
||||
Memory int `yaml:"memory"`
|
||||
Segments []string `yaml:"segments"`
|
||||
Addresses map[string]string `yaml:"addresses"`
|
||||
Secondary map[string][]string `yaml:"secondary"`
|
||||
Loopback string `yaml:"loopback"`
|
||||
FRR string `yaml:"frr"`
|
||||
}
|
||||
|
||||
type file struct {
|
||||
|
|
@ -83,6 +90,11 @@ func Load(path string) (*Topology, error) {
|
|||
if err != nil {
|
||||
return nil, fmt.Errorf("%s: %w", path, err)
|
||||
}
|
||||
for i, n := range t.Nodes {
|
||||
if n.FRR != "" && !filepath.IsAbs(n.FRR) {
|
||||
t.Nodes[i].FRR = filepath.Join(filepath.Dir(path), n.FRR)
|
||||
}
|
||||
}
|
||||
return t, nil
|
||||
}
|
||||
|
||||
|
|
@ -126,6 +138,9 @@ func Parse(data []byte) (*Topology, error) {
|
|||
Memory: n.Memory,
|
||||
Segments: n.Segments,
|
||||
Addresses: n.Addresses,
|
||||
Secondary: n.Secondary,
|
||||
Loopback: n.Loopback,
|
||||
FRR: n.FRR,
|
||||
})
|
||||
}
|
||||
return t, nil
|
||||
|
|
|
|||
|
|
@ -17,6 +17,7 @@ const (
|
|||
MinPrefix = 8
|
||||
|
||||
ReservedInterface = "mgmt0"
|
||||
LoopbackInterface = "lo1"
|
||||
)
|
||||
|
||||
var (
|
||||
|
|
@ -68,6 +69,9 @@ func (t *Topology) Validate() error {
|
|||
if s.Name == ReservedInterface {
|
||||
add("segment %s: name is reserved for the administration interface", s.Name)
|
||||
}
|
||||
if s.Name == LoopbackInterface {
|
||||
add("segment %s: name is reserved for the loopback interface", s.Name)
|
||||
}
|
||||
sw, ok := nodes[s.Switch]
|
||||
switch {
|
||||
case s.Switch == "":
|
||||
|
|
@ -116,6 +120,7 @@ func (t *Topology) Validate() error {
|
|||
if n.Memory < MinMemory {
|
||||
add("node %s: memory must be at least %d MiB", n.Name, MinMemory)
|
||||
}
|
||||
validateExtras(n, segments, add)
|
||||
if n.Role == RoleSwitch {
|
||||
if len(n.Segments) > 0 || len(n.Addresses) > 0 {
|
||||
add("node %s: a switch carries its segments through segments.<name>.switch, not through segments or addresses", n.Name)
|
||||
|
|
@ -165,6 +170,53 @@ func (t *Topology) Validate() error {
|
|||
return nil
|
||||
}
|
||||
|
||||
func validateExtras(n Node, segments map[string]Segment, add func(string, ...any)) {
|
||||
carried := map[string]bool{}
|
||||
if n.Role == RoleSwitch {
|
||||
for name, s := range segments {
|
||||
if s.Switch == n.Name {
|
||||
carried[name] = true
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for _, name := range n.Segments {
|
||||
carried[name] = true
|
||||
}
|
||||
}
|
||||
names := make([]string, 0, len(n.Secondary))
|
||||
for name := range n.Secondary {
|
||||
names = append(names, name)
|
||||
}
|
||||
sort.Strings(names)
|
||||
for _, name := range names {
|
||||
if !carried[name] {
|
||||
add("node %s: secondary address given for segment %s it is not attached to", n.Name, name)
|
||||
continue
|
||||
}
|
||||
network, _ := netip.ParsePrefix(segments[name].CIDR)
|
||||
for _, raw := range n.Secondary[name] {
|
||||
prefix, err := netip.ParsePrefix(raw)
|
||||
switch {
|
||||
case err != nil:
|
||||
add("node %s: secondary address %q on %s: %v", n.Name, raw, name, err)
|
||||
case !prefix.Addr().Is4():
|
||||
add("node %s: secondary address %s on %s is not IPv4", n.Name, raw, name)
|
||||
case network.IsValid() && network.Contains(prefix.Addr()):
|
||||
add("node %s: secondary address %s is inside segment %s (%s), use addresses instead", n.Name, raw, name, network)
|
||||
}
|
||||
}
|
||||
}
|
||||
if n.Loopback != "" {
|
||||
prefix, err := netip.ParsePrefix(n.Loopback)
|
||||
switch {
|
||||
case err != nil:
|
||||
add("node %s: loopback %q: %v", n.Name, n.Loopback, err)
|
||||
case !prefix.Addr().Is4():
|
||||
add("node %s: loopback %s is not IPv4", n.Name, n.Loopback)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func sortedKeys(m map[string]string) []string {
|
||||
keys := make([]string, 0, len(m))
|
||||
for k := range m {
|
||||
|
|
|
|||
|
|
@ -28,14 +28,16 @@ usage: ${0##*/} <commande> [arguments]
|
|||
|
||||
plan résout l'offre horaire, l'OS et les clés SSH, affiche la requête de création
|
||||
et le prix ; ne crée rien
|
||||
up crée le serveur de lab, attend la fin de son installation et son SSH
|
||||
up crée le serveur de lab, attend la fin de son installation et son SSH,
|
||||
puis le prépare (voir prepare)
|
||||
status liste les serveurs de lab du projet
|
||||
ssh [commande] se connecte au serveur de lab ; avec une commande, un terminal n'est demandé
|
||||
que si l'entrée standard en est un
|
||||
prepare installe sur le serveur ce dont lab a besoin (qemu, genisoimage), vérifie
|
||||
/dev/kvm et la virtualisation imbriquée ; lancé aussi par up
|
||||
push <topologie> compile cmd/lab pour linux/amd64 et dépose sur le serveur ~/lab et
|
||||
~/<topologie> ; ensuite : ssh './lab up <topologie>'
|
||||
push <topologie> compile cmd/lab pour linux/amd64 et dépose sur le serveur ~/lab et le
|
||||
répertoire de la topologie dans ~/topology/ (avec les fichiers qu'elle
|
||||
référence) ; ensuite : ssh './lab up topology/<topologie>'
|
||||
down supprime tous les serveurs de lab du projet et attend leur disparition
|
||||
session [cmd] up, puis la commande distante (ou un shell), puis down quoi qu'il arrive
|
||||
|
||||
|
|
@ -332,6 +334,12 @@ push_file () {
|
|||
ssh_run -- "cat > '${TARGET}.part' && chmod ${MODE} '${TARGET}.part' && mv '${TARGET}.part' '${TARGET}'" < "${SOURCE}"
|
||||
}
|
||||
|
||||
push_dir () {
|
||||
local SOURCE="${1}"
|
||||
COPYFILE_DISABLE=1 tar --no-xattrs -C "${SOURCE}" -cf - . \
|
||||
| ssh_run -- "rm -rf topology.part && mkdir topology.part && tar -C topology.part -xf - && rm -rf topology && mv topology.part topology"
|
||||
}
|
||||
|
||||
cmd_push () {
|
||||
local TOPOLOGY="${1:-}"
|
||||
local NAME="${TOPOLOGY##*/}"
|
||||
|
|
@ -344,8 +352,8 @@ cmd_push () {
|
|||
(cd "${REPO_DIR}" && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o "${BINARY}" ./cmd/lab) \
|
||||
|| die "compilation de lab échouée"
|
||||
push_file "${BINARY}" lab 755 || die "envoi de lab échoué"
|
||||
push_file "${TOPOLOGY}" "${NAME}" 644 || die "envoi de ${NAME} échoué"
|
||||
info "déposés sur le serveur : ~/lab, ~/${NAME} — ensuite : ${0##*/} ssh './lab up ${NAME}'"
|
||||
push_dir "$(dirname "${TOPOLOGY}")" || die "envoi du répertoire de ${NAME} échoué"
|
||||
info "déposés sur le serveur : ~/lab, ~/topology/ — ensuite : ${0##*/} ssh './lab up topology/${NAME}'"
|
||||
}
|
||||
|
||||
delete_server () {
|
||||
|
|
|
|||
|
|
@ -147,7 +147,7 @@ case "$*" in
|
|||
*"bash -s"*)
|
||||
cat > "${FAKE_DIR}/prepare.sh"
|
||||
exit "${FAKE_PREPARE_RC:-0}" ;;
|
||||
*"cat > "*)
|
||||
*"cat > "*|*"-xf -"*)
|
||||
N=$(ls "${FAKE_DIR}" | grep -c '^pushed\.')
|
||||
cat > "${FAKE_DIR}/pushed.$(( N + 1 ))"
|
||||
exit "${FAKE_PUSH_RC:-0}" ;;
|
||||
|
|
@ -659,18 +659,27 @@ test_prepare_without_known_server_is_refused () {
|
|||
}
|
||||
|
||||
test_push_builds_for_linux_and_sends_binary_and_topology () {
|
||||
setup "push : compile lab pour linux/amd64, envoie le binaire et la topologie"
|
||||
setup "push : compile lab pour linux/amd64, envoie le binaire et le répertoire de la topologie"
|
||||
known_server
|
||||
printf 'name: evpn-2hv\n' > "${WORK}/evpn-2hv.yml"
|
||||
run_lab push "${WORK}/evpn-2hv.yml" || fail "code de sortie $?"
|
||||
local REPO
|
||||
mkdir -p "${WORK}/conf/frr"
|
||||
printf 'name: evpn-2hv\n' > "${WORK}/conf/evpn-2hv.yml"
|
||||
printf 'hostname rr1\n' > "${WORK}/conf/frr/rr1.conf"
|
||||
xattr -w com.apple.test lab "${WORK}/conf/evpn-2hv.yml" 2>/dev/null || true
|
||||
run_lab push "${WORK}/conf/evpn-2hv.yml" || fail "code de sortie $?"
|
||||
local REPO LISTING
|
||||
REPO="$(cd "$(dirname "${SCRIPT}")/.." && pwd)"
|
||||
[[ $(cat "${WORK}/go.log") == "${REPO}|build -o ${WORK}/.cache/two-lab/lab ./cmd/lab|CGO_ENABLED=0 GOOS=linux GOARCH=amd64" ]] \
|
||||
|| fail "compilation : $(cat "${WORK}/go.log")"
|
||||
grep -q "debian@203.0.113.7 cat > 'lab.part' && chmod 755 'lab.part' && mv 'lab.part' 'lab'" "${WORK}/ssh.log" || fail "envoi de lab absent"
|
||||
grep -q "debian@203.0.113.7 cat > 'evpn-2hv.yml.part' && chmod 644 'evpn-2hv.yml.part' && mv 'evpn-2hv.yml.part' 'evpn-2hv.yml'" "${WORK}/ssh.log" || fail "envoi de la topologie absent"
|
||||
grep -q "debian@203.0.113.7 rm -rf topology.part && mkdir topology.part && tar -C topology.part -xf - && rm -rf topology && mv topology.part topology" "${WORK}/ssh.log" \
|
||||
|| fail "envoi du répertoire absent"
|
||||
[[ $(cat "${WORK}/pushed.1") == "binaire-lab" ]] || fail "contenu de lab : $(cat "${WORK}/pushed.1")"
|
||||
[[ $(cat "${WORK}/pushed.2") == "name: evpn-2hv" ]] || fail "contenu de la topologie : $(cat "${WORK}/pushed.2")"
|
||||
LISTING=$(tar -tf "${WORK}/pushed.2" | sed 's|^\./||' | grep -v '/$' | grep -v '^$' | sort | tr '\n' ' ')
|
||||
[[ "${LISTING}" == "evpn-2hv.yml frr/rr1.conf " ]] || fail "contenu de l'archive : ${LISTING}"
|
||||
grep -aq 'LIBARCHIVE.xattr' "${WORK}/pushed.2" && fail "attributs étendus macOS dans l'archive"
|
||||
mkdir "${WORK}/x" && tar -C "${WORK}/x" -xf "${WORK}/pushed.2"
|
||||
[[ $(cat "${WORK}/x/frr/rr1.conf") == "hostname rr1" ]] || fail "frr/rr1.conf altéré"
|
||||
grep -q "ssh './lab up topology/evpn-2hv.yml'" "${WORK}/out.log" || fail "consigne finale absente"
|
||||
teardown
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue