add metadata system files

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

tasks/main.yml

@@ -9,5 +9,8 @@
 - name: import dnsmasq
   import_tasks: dnsmasq.yml
 
+- name: import metadata
+  import_tasks: metadata.yml
+
 - name: import frr
   import_tasks: frr.yml

tasks/metadata.yml

@@ -0,0 +1,17 @@
+---
+
+# missing metadata binarie
+# a dl depuis le forgejo un jour
+# quand je publierais un binaire
+# ou un package 
+
+- name: deploy metadata
+  ansible.builtin.template:
+    src: etc/systemd/system/metadata.j2
+    dest: "/etc/systemd/system/metadata@.service"
+  notify: systemctl daemon-reload
+
+- name: deploy metadata in netns
+  ansible.builtin.template:
+    src: usr/local/bin/run-metadata-in-netns.sh.j2
+    dest: "/usr/local/bin/run-metadata-in-netns.sh"

templates/etc/systemd/system/metadata.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=metadata in netns %i
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/run-metadata-in-netns.sh %i
+
+[Install]
+WantedBy=multi-user.target

templates/usr/local/bin/run-metadata-in-netns.sh.j2

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+
+# Expects one argument: netns_bridge (e.g. vpc-00003_br-00002 or vpc1_br0)
+arg="$1"
+NETNS="${arg%%_*}"
+ip_port="${arg#*_}"
+IP="${ip_port%%-*}"
+PORT="${ip_port#*-}"
+
+echo "start metadata ${NETNS} "
+
+exec ip netns exec "${NETNS}" \
+  /usr/bin/metadata \
+    -file "/opt/metadata/${arg}.conf" \
+    -interface "${IP}" \
+    -port "${PORT}"