Possiblity to autoinstall in Docker Compose (#3353)

* Possiblity to autoinstall in Docker Compose

#fix https://github.com/FreshRSS/FreshRSS/issues/3349

It is simply calling our existing CLI: do-install.php and
create-user.php
https://github.com/FreshRSS/FreshRSS/tree/master/cli

FreshRSS will typically be ready a few seconds before the database, so
introduce a tolerance when the database is not available / up (yet) by
trying a few times to connect. Also useful to avoid service interruption
when DB service is restarted.

Example:

```yml
freshrss-app:
    image: freshrss/freshrss
    container_name:
freshrss-app
    hostname: freshrss-app
    restart: unless-stopped

ports:
      - "8080:80"
    depends_on:
      - freshrss-db

volumes:
      - data:/var/www/FreshRSS/data
      -
extensions:/var/www/FreshRSS/extensions
    environment:
      CRON_MIN:
'*/20'
      FRESHRSS_ENV: development
      FRESHRSS_INSTALL: |-

--api_enabled
        --base_url https://rss.example.net

--db-base freshrss
        --db-host freshrss-db
        --db-password
freshrss
        --db-type pgsql
        --db-user freshrss

--default_user admin
        --language en
      FRESHRSS_USER: |-

--api_password freshrss
        --email user@example.net

--language en
        --password freshrss
        --user admin
      TZ:
Europe/Paris
```

* Minor type f in find

* shellcheck

2 files changed, 57 insertions, 14 deletions

diff --git a/Docker/docker-compose.yml b/Docker/docker-compose.yml
index e478f404e..8fcc6f6d6 100644
--- a/Docker/docker-compose.yml
+++ b/Docker/docker-compose.yml
@@ -9,9 +9,9 @@ services:
     volumes:
       - db:/var/lib/postgresql/data
     environment:
-      - POSTGRES_USER=freshrss
-      - POSTGRES_PASSWORD=freshrss
-      - POSTGRES_DB=freshrss
+      POSTGRES_USER: freshrss
+      POSTGRES_PASSWORD: freshrss
+      POSTGRES_DB: freshrss
 
   freshrss-app:
     image: freshrss/freshrss:latest
@@ -26,10 +26,8 @@ services:
       - data:/var/www/FreshRSS/data
       - extensions:/var/www/FreshRSS/extensions
     environment:
-      - CRON_MIN=*/20
-      - TZ=Europe/Copenhagen
-    labels:
-      - "traefik.port=80"
+      CRON_MIN: '*/20'
+      TZ: Europe/Paris
 
 volumes:
   db:
diff --git a/Docker/entrypoint.sh b/Docker/entrypoint.sh
index a0cf3be15..87c0a0f85 100755
--- a/Docker/entrypoint.sh
+++ b/Docker/entrypoint.sh
@@ -2,15 +2,12 @@
 
 php -f ./cli/prepare.php >/dev/null
 
-chown -R :www-data .
-chmod -R g+r . && chmod -R g+w ./data/
-
-find /etc/php*/ -name php.ini -exec sed -r -i "\\#^;?date.timezone#s#^.*#date.timezone = $TZ#" {} \;
-find /etc/php*/ -name php.ini -exec sed -r -i "\\#^;?post_max_size#s#^.*#post_max_size = 32M#" {} \;
-find /etc/php*/ -name php.ini -exec sed -r -i "\\#^;?upload_max_filesize#s#^.*#upload_max_filesize = 32M#" {} \;
+find /etc/php*/ -type f -name php.ini -exec sed -r -i "\\#^;?date.timezone#s#^.*#date.timezone = $TZ#" {} \;
+find /etc/php*/ -type f -name php.ini -exec sed -r -i "\\#^;?post_max_size#s#^.*#post_max_size = 32M#" {} \;
+find /etc/php*/ -type f -name php.ini -exec sed -r -i "\\#^;?upload_max_filesize#s#^.*#upload_max_filesize = 32M#" {} \;
 
 if [ -n "$LISTEN" ]; then
-	find /etc/apache2/ -name FreshRSS.Apache.conf -exec sed -r -i "\\#^Listen#s#^.*#Listen $LISTEN#" {} \;
+	find /etc/apache2/ -type f -name FreshRSS.Apache.conf -exec sed -r -i "\\#^Listen#s#^.*#Listen $LISTEN#" {} \;
 fi
 
 if [ -n "$CRON_MIN" ]; then
@@ -23,4 +20,52 @@ if [ -n "$CRON_MIN" ]; then
 	crontab -l | sed -r "\\#FreshRSS#s#^[^ ]+ #$CRON_MIN #" | crontab -
 fi
 
+if [ -n "$FRESHRSS_INSTALL" ]; then
+	# shellcheck disable=SC2046
+	php -f ./cli/do-install.php -- \
+		$(echo "$FRESHRSS_INSTALL" | sed -r 's/[\r\n]+/\n/g' | paste -s -) \
+		1>/tmp/out.txt 2>/tmp/err.txt
+	EXITCODE=$?
+	grep -v 'Remember to' /tmp/out.txt
+	grep -v 'Please use' /tmp/err.txt 1>&2
+
+	if [ $EXITCODE -eq 3 ]; then
+		echo 'ℹ️ FreshRSS already installed; no change performed.'
+	elif [ $EXITCODE -eq 0 ]; then
+		echo '✅ FreshRSS successfully installed.'
+	else
+		rm -f /tmp/out.txt /tmp/err.txt
+		echo '❌ FreshRSS error during installation!'
+		exit $EXITCODE
+	fi
+
+	rm -f /tmp/out.txt /tmp/err.txt
+fi
+
+if [ -n "$FRESHRSS_USER" ]; then
+	# shellcheck disable=SC2046
+	php -f ./cli/create-user.php -- \
+		$(echo "$FRESHRSS_USER" | sed -r 's/[\r\n]+/\n/g' | paste -s -) \
+		1>/tmp/out.txt 2>/tmp/err.txt
+	EXITCODE=$?
+	grep -v 'Remember to' /tmp/out.txt
+	cat /tmp/err.txt 1>&2
+
+	if [ $EXITCODE -eq 3 ]; then
+		echo 'ℹ️ FreshRSS user already exists; no change performed.'
+	elif [ $EXITCODE -eq 0 ]; then
+		echo '✅ FreshRSS user successfully created.'
+		./cli/list-users.php | xargs -n1 ./cli/actualize-user.php --user
+	else
+		rm -f /tmp/out.txt /tmp/err.txt
+		echo '❌ FreshRSS error during the creation of a user!'
+		exit $EXITCODE
+	fi
+
+	rm -f /tmp/out.txt /tmp/err.txt
+fi
+
+chown -R :www-data .
+chmod -R g+r . && chmod -R g+w ./data/
+
 exec "$@"