fix: [etherpad] keep API key

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

etherpad/hooks/init

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+## Init is run on host
+## For now it is run every time the script is launched, but
+## it should be launched only once after build.
+
+## Accessible variables are:
+## - SERVICE_NAME        Name of current service
+## - DOCKER_BASE_IMAGE   Base image from which this service might be built if any
+## - SERVICE_DATASTORE           Location on host of the DATASTORE of this service
+## - SERVICE_CONFIGSTORE         Location on host of the CONFIGSTORE of this service
+
+
+. lib/common
+
+set -e
+
+
+dirs=(
+    "$SERVICE_DATASTORE/var/lib/etherpad"
+)
+
+uid_gid=($(docker_get_uid_gid "$SERVICE_NAME" "etherpad" "etherpad")) || {
+    err "Could not fetch uid/gid on image of service ${DARKYELLOW}$SERVICE_NAME${NORMAL}."
+    return 1
+}
+
+uid="${uid_gid[0]}"
+gid="${uid_gid[1]}"
+for dir in "${dirs[@]}"; do
+    mkdir -p "$dir"
+    find "$dir" \! -uid "$uid" -print0 | while read-0 f; do
+        chown -v "$uid" "$f" || return 1
+    done
+    find "$dir" \! -gid "$gid" -print0 | while read-0 f; do
+        chgrp -v "$gid" "$f" || return 1
+    done
+done
+

etherpad/metadata.yml

@@ -8,7 +8,11 @@ docker-image: docker.0k.io/etherpad:1.8.14-soffice  ## custom built from git m e
 description: |
   Etherpad-lite service.
 
+data-resources:
+  - /var/lib/etherpad
+
 docker-compose:
+  command: node src/node/server.js --apikey /var/lib/etherpad/APIKEY.txt
   environment:
     SOFFICE: '/usr/bin/soffice'
 
@@ -32,3 +36,18 @@ uses:
       proxy: "Public access"
     default-options:
       target: !var-expand ${MASTER_BASE_SERVICE_NAME}:9001
+
+  backup:
+    constraint: recommended
+    auto: pair
+    solves:
+      backup: "Automatic regular backup"
+    default-options:
+      ## First pattern matching wins, no pattern matching includes.
+      ## include-patterns are checked first, then exclude-patterns
+      ## Patterns rules:
+      ##  - ending / for directory
+      ##  - '*' authorized
+      ##  - must start with a '/', will start from $SERVICE_DATASTORE
+      #exclude-patterns:
+      #  - "/var/lib/odoo/sessions/"