[IMP] 11.0-13.0: Wait for PostgreSQL before starting Odoo

In some situations, like when a docker compose file use a data volume
to persist postgresql databases, the Odoo server starts and tries to
connect to database server before the postgresql server is ready.

In such a case, the Odoo containers fails to start.

With this commit, the wait-for-it script is used to wait for the
database server service to be ready before starting Odoo.

This script is available as a Debian package.

Closes #258, closes #259

11.0/Dockerfile

@@ -13,6 +13,7 @@ RUN set -x; \
         && apt-get install -y --no-install-recommends \
             ca-certificates \
             curl \
+            wait-for-it \
             dirmngr \
             fonts-noto-cjk \
             gnupg \

11.0/entrypoint.sh

@@ -23,6 +23,9 @@ check_config "db_port" "$PORT"
 check_config "db_user" "$USER"
 check_config "db_password" "$PASSWORD"
 
+# Wait for the database to be up
+wait-for-it $HOST:$PORT --timeout=60 -- sleep 5s
+
 case "$1" in
     -- | odoo)
         shift

12.0/Dockerfile

@@ -13,6 +13,7 @@ RUN set -x; \
         && apt-get install -y --no-install-recommends \
             ca-certificates \
             curl \
+            wait-for-it \
             dirmngr \
             fonts-noto-cjk \
             gnupg \

12.0/entrypoint.sh

@@ -23,6 +23,9 @@ check_config "db_port" "$PORT"
 check_config "db_user" "$USER"
 check_config "db_password" "$PASSWORD"
 
+# Wait for the database to be up
+wait-for-it $HOST:$PORT --timeout=60 -- sleep 5s
+
 case "$1" in
     -- | odoo)
         shift

13.0/Dockerfile

@@ -10,6 +10,7 @@ RUN set -x; \
         && apt-get install -y --no-install-recommends \
             ca-certificates \
             curl \
+            wait-for-it \
             dirmngr \
             fonts-noto-cjk \
             gnupg \

13.0/entrypoint.sh

@@ -23,6 +23,9 @@ check_config "db_port" "$PORT"
 check_config "db_user" "$USER"
 check_config "db_password" "$PASSWORD"
 
+# Wait for the database to be up
+wait-for-it $HOST:$PORT --timeout=60 -- sleep 5s
+
 case "$1" in
     -- | odoo)
         shift