Implement persistent/reliable cron service using supervisor.

compose/bin/cli

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 [ -z "$1" ] && echo "Please specify a CLI command (ex. ls)" && exit
-bin/docker-compose exec phpfpm "$@"
+bin/docker-compose exec -u app phpfpm "$@"

compose/bin/clinotty

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 [ -z "$1" ] && echo "Please specify a CLI command (ex. ls)" && exit
 # -T: Disable pseudo-tty allocation
-bin/docker-compose exec -T phpfpm "$@"
+bin/docker-compose exec -u app -T phpfpm "$@"

compose/bin/cron

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-[ -z "$1" ] && echo "Please specify a service operation (start|stop|status|restart|reload|force-reload)" && exit
-bin/root service cron "$@"
+[ -z "$1" ] && echo "Please specify a service operation (start|stop|status|restart)" && exit
+bin/root supervisorctl "$@" cron
 bin/root touch /var/www/html/var/.setup_cronjob_status /var/www/html/var/.update_cronjob_status
 bin/root chown app:app /var/www/html/var/.setup_cronjob_status /var/www/html/var/.update_cronjob_status

compose/compose.yaml

@@ -34,6 +34,7 @@ services:
   phpfpm:
     image: markoshust/magento-php:8.2-fpm-0
     volumes: *appvolumes
+    tty: true
     env_file: env/phpfpm.env
     #extra_hosts: *appextrahosts
 

compose/env/phpfpm.env

@@ -3,3 +3,4 @@ BLACKFIRE_CLIENT_TOKEN=
 COMPOSER_DISABLE_XDEBUG_WARN=1
 PHP_CS_FIXER_IGNORE_ENV=1
 PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true
+START_CRON=true

images/php/8.2/Dockerfile

@@ -3,7 +3,7 @@ MAINTAINER Mark Shust <mark@shust.com>
 
 ARG APP_ID=1000
 RUN groupadd -g "$APP_ID" app \
-  && useradd -g "$APP_ID" -u "$APP_ID" -d /var/www -s /bin/bash app
+  && useradd -g "$APP_ID" -G tty -u "$APP_ID" -d /var/www -s /bin/bash app
 
 RUN mkdir -p /etc/nginx/html /var/www/html /sock \
   && chown -R app:app /etc/nginx /var/www /usr/local/etc/php/conf.d /sock
@@ -34,8 +34,10 @@ RUN apt-get update && apt-get install -y \
     msmtp \
     nodejs \
     procps \
+    tini \
     vim \
     zip \
+    supervisor \
   && rm -rf /var/lib/apt/lists/*
 
 RUN pecl channel-update pecl.php.net && pecl install \
@@ -91,7 +93,11 @@ COPY conf/msmtprc /etc/msmtprc
 COPY conf/php.ini $PHP_INI_DIR
 COPY conf/php-fpm.conf /usr/local/etc/
 COPY conf/www.conf /usr/local/etc/php-fpm.d/
+COPY conf/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+# using tini as PID 1 instead of supervisor eliminates the scary but harmless "reaped unknown pid XX" message each time cron runs
+ENTRYPOINT ["/usr/bin/tini", "--"]  
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]
+
 
-USER app:app
 VOLUME /var/www
 WORKDIR /var/www/html

images/php/8.2/conf/php-fpm.conf

@@ -3,13 +3,12 @@
 
 [global]
 
-error_log = /proc/self/fd/2
+error_log = /dev/console
 daemonize = no
 
 [www]
 
-; if we send this to /proc/self/fd/1, it never appears
-access.log = /proc/self/fd/2
+access.log = /dev/console
 
 ;user = app
 ;group = app

images/php/8.2/conf/supervisord.conf

@@ -0,0 +1,28 @@
+[supervisord]
+nodaemon=true
+user=root
+pidfile=%(here)s/supervisord.pid
+logfile=/var/www/html/var/log/supervisord.log
+
+[unix_http_server]
+file=/var/run/supervisor.sock
+chmod=0700
+
+[supervisorctl]
+serverurl=unix:///var/run/supervisor.sock
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+[program:php]
+command=docker-php-entrypoint /usr/local/sbin/php-fpm
+user=app
+
+[program:cron]
+command=bash -c 'su - app bash -c "/usr/local/bin/php /var/www/html/bin/magento cron:install"; exec /usr/sbin/cron -f'
+autostart=%(ENV_START_CRON)s
+stdout_logfile=/dev/console
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/console
+stderr_logfile_maxbytes=0
+