add variables (TA#11537) (#44)

README.md

@@ -1,3 +1,25 @@
 # odoo-public
 
 Patches and fixes can be found in [numigi/odoo repo](https://github.com/Numigi/odoo)
+
+## extended_entrypoint.sh
+
+Extension of the intial entrypoint bash script to improve interaction with the database server.
+When the database server is part of the docker-compose stack, we need to wait for the 
+database server to be ready before to start the odoo server.
+
+That is the purpose of the script.
+
+### usage
+When you launch the odoo server, you see the message  `waiting for postgres...on db`.
+
+The line after displays the status: `no response` or `accepting connections`.
+
+#### Variables
+* WAIT_FOR_DB_HOST: to enable or disable the wait. Default: true. (disabled on any other value).
+
+_The variable is useful to manage the case of hosted database server that we don't want to wait._
+
+* DB_HOST: name of service that hosts to wait for. Default: db.
+
+_Change the name of the service of the postgres server is different._

docker_files/extended_entrypoint.sh

@@ -1,8 +1,21 @@
 #!/usr/bin/env bash
 set -e
-until pg_isready --host=db; do
-    echo "$(date) - waiting for postgres...on db"
-    sleep 1
-done
+
+# allow to mentioned if the sleep should be operated.
+# the wait is useful when the db server is started at the docker-compose up
+# useless for hosted servers.
+wait_for_db_host=${WAIT_FOR_DB_HOST:-true}
+
+if [[ "${wait_for_db_host}" = true ]] ; then
+
+    # allow to use a different name for the host of the db than "db"
+    # useful when multiple odoo stacks are deployed on the same machine
+    db_host=${DB_HOST:-db}
+
+    until pg_isready --host=${db_host}; do
+        echo "$(date) - waiting for postgres...on ${db_host}"
+        sleep 1
+    done
+fi
 
 exec /entrypoint.sh "$@"