conf: use a Type=notify systemd service

Starting from Mattermost 4.8, the server process sends a systemd
notification when it is ready to accept network connections. Thus we
don't need to explicitely wait for the port to be open in the service.

As a bonus, by removing the hack, we don't need to replace `__PORT__` in
the service anymore–which means the associated script helper can be
removed too.

conf/systemd.service

@@ -5,14 +5,8 @@ After=mysql.service
 Requires=mysql.service
 
 [Service]
-Type=simple
+Type=notify
 ExecStart=__FINALPATH__/bin/platform
-# HACK: Wait for Mattermost port to be open before declaring the service to be launched successfully.
-# This avoids to report the service as launched even when it crashes a few milliseconds after start.
-#
-# TODO: improve mattermost to send a STARTED notification, and
-# switch the service to 'Type=notify' instead.
-ExecStartPost=/usr/bin/timeout 10 /bin/sh -c 'while ! nc -z localhost __PORT__; do sleep 0.2; done'
 Restart=always
 RestartSec=10
 WorkingDirectory=__FINALPATH__

scripts/_common.sh

@@ -1,17 +0,0 @@
-#!/bin/bash
-
-# Add a systemd configuration using ynh_add_systemd_config,
-# by replacing __PORT__ with the $port variable value.
-mattermost_add_systemd_config () {
-  local config_path="../conf"
-
-  # Replace variables in the systemd template config file
-  sed -i'.template' "s/__PORT__/$port/g" "$config_path/systemd.service"
-
-  # Create a dedicated systemd config
-  ynh_add_systemd_config
-
-  # Restore the original configuration template
-  rm "$config_path/systemd.service"
-  mv "$config_path/systemd.service.template" "$config_path/systemd.service"
-}

scripts/install

@@ -6,7 +6,6 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -168,7 +167,7 @@ ynh_add_nginx_config
 # SYSTEMD CONFIGURATION
 #=================================================
 
-mattermost_add_systemd_config
+ynh_add_systemd_config
 
 #=================================================
 # ADVERTISE SERVICE IN ADMIN PANEL

scripts/upgrade

@@ -6,7 +6,6 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-source _common.sh
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -132,7 +131,7 @@ ynh_add_nginx_config
 # SYSTEMD CONFIGURATION
 #=================================================
 
-mattermost_add_systemd_config
+ynh_add_systemd_config
 
 #=================================================
 # ADVERTISE SERVICE IN ADMIN PANEL