f-50: lab: topologie et calcul du plan #50

Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>

internal/lab/topology/format.go

@@ -0,0 +1,34 @@
+package topology
+
+import (
+	"fmt"
+	"io"
+	"text/tabwriter"
+)
+
+func (p *Plan) Write(w io.Writer) error {
+	tw := tabwriter.NewWriter(w, 0, 0, 2, ' ', 0)
+
+	fmt.Fprintf(tw, "lab %s: nodes %d, segments %d, cables %d\n", p.Name, len(p.Nodes), len(p.Segments), len(p.Cables))
+
+	fmt.Fprintf(tw, "\nnodes\n")
+	fmt.Fprintf(tw, "  name\trole\timage\tcpus\tmemory\tssh\n")
+	for _, n := range p.Nodes {
+		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)
+	}
+
+	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)
+		fmt.Fprintf(tw, "  node\tinterface\taddress\tmac\tudp\t\tswitch port\tmac\tudp\n")
+		for _, c := range p.Cables {
+			if c.Segment != s.Name {
+				continue
+			}
+			fmt.Fprintf(tw, "  %s\t%s\t%s\t%s\t%d\t<->\t%s %s\t%s\t%d\n",
+				c.Node, c.NodeInterface, c.NodeAddress, c.NodeMAC, c.NodePort,
+				c.Switch, c.SwitchInterface, c.SwitchMAC, c.SwitchPort)
+		}
+	}
+	return tw.Flush()
+}