Ensure Varnish can mount custom configurations

.gitignore

@@ -98,6 +98,11 @@
 /cfg/php-startup-7.4/*.sh
 /cfg/php-startup-8.0/*.sh
 
+# Ignorecustom Varnish configs
+/cfg/varnish-4/*.vcl
+/cfg/varnish-5/*.vcl
+/cfg/varnish-6/*.vcl
+
 # Ignore custom PHP-FPM modules
 /mod/php-fpm-5.2/*.so
 /mod/php-fpm-5.3/*.so

cfg/varnish-4/README.md

@@ -0,0 +1,8 @@
+# Custom Varnish configuration
+
+Place your `*.vcl` files here to customize Varnish.
+
+* This directory will be mounted into `/etc/varnish.d/` into the Varnish container.
+* Ensure to point your `VARNISH_CONFIG` variable to `/etc/varnish.d/<my-file>.vcl` when you want to use it
+* Ensure to set your Backend server to `httpd` in your custom varnish config
+* Ensure to set your Backend port to `80` in your custom varnish config

cfg/varnish-5/README.md

@@ -0,0 +1,8 @@
+# Custom Varnish configuration
+
+Place your `*.vcl` files here to customize Varnish.
+
+* This directory will be mounted into `/etc/varnish.d/` into the Varnish container.
+* Ensure to point your `VARNISH_CONFIG` variable to `/etc/varnish.d/<my-file>.vcl` when you want to use it
+* Ensure to set your Backend server to `httpd` in your custom varnish config
+* Ensure to set your Backend port to `80` in your custom varnish config

cfg/varnish-6/README.md

@@ -0,0 +1,8 @@
+# Custom Varnish configuration
+
+Place your `*.vcl` files here to customize Varnish.
+
+* This directory will be mounted into `/etc/varnish.d/` into the Varnish container.
+* Ensure to point your `VARNISH_CONFIG` variable to `/etc/varnish.d/<my-file>.vcl` when you want to use it
+* Ensure to set your Backend server to `httpd` in your custom varnish config
+* Ensure to set your Backend port to `80` in your custom varnish config

compose/docker-compose.override.yml-all

@@ -84,6 +84,8 @@ services:
       - VARNISHD_PARAMS=${VARNISH_PARAMS:--p default_ttl=3600 -p default_grace=3600}
       - BACKEND_HOST=httpd
       - BACKEND_PORT=80
+    volumes:
+      - ${DEVILBOX_PATH}/cfg/varnish-${VARNISH_SERVER:-6}:/etc/varnish.d
     depends_on:
       - bind
       - php

compose/docker-compose.override.yml-varnish

@@ -15,6 +15,8 @@ services:
       - VARNISHD_PARAMS=${VARNISH_PARAMS:--p default_ttl=3600 -p default_grace=3600}
       - BACKEND_HOST=httpd
       - BACKEND_PORT=80
+    volumes:
+      - ${DEVILBOX_PATH}/cfg/varnish-${VARNISH_SERVER:-6}:/etc/varnish.d
     depends_on:
       - bind
       - php