Docker: Change from MailDev to Mailpit (#44984)

* Switch from MailDev to Mailpit
* Allow PHPMyAdmin custom port with `PORT_PHPMY` env var
* Change env var from `PORT_MAILDEV` to `PORT_INBOX`

Author: tbradsha

tools/docker/Dockerfile

@@ -7,8 +7,8 @@ ARG COMPOSER_VERSION
 ARG NODE_VERSION
 ARG PNPM_VERSION
 
-ENV LANG en_US.UTF-8
-ENV LC_ALL en_US.UTF-8
+ENV LANG=en_US.UTF-8
+ENV LC_ALL=en_US.UTF-8
 
 # Bypass WP-CLI `--allow-root` check. Reworking the container to not run as root would be a lot of work for basically no benefit.
 ENV WP_CLI_ALLOW_ROOT=1

tools/docker/README.md

@@ -7,7 +7,7 @@ Unified environment for developing Jetpack using Docker containers providing fol
 * All monorepo plugins will be available as plugins within the Docker WP instance.
 * Xdebug setup.
 * WP-CLI installed.
-* MailDev to catch all the emails leaving WordPress so that you can observe them from browser.
+* Mailpit to catch all the emails leaving WordPress so that you can observe them from browser
 * phpMyAdmin to aid in viewing the database.
 * Handy shorthand commands like `jetpack docker up` and `jetpack docker phpunit` to simplify the usage.
 
@@ -67,8 +67,9 @@ You can control some of the behavior of Jetpack's Docker configuration with envi
 You can set the following variables on a per-command basis (`PORT_WORDPRESS=8000 jetpack docker up`) or, preferably, in the `tools/docker/.env` file you set up earlier.
 
 * `PORT_WORDPRESS`: (default=`80`) The port on your host machine connected to the WordPress container's HTTP server.
-* `PORT_MAILDEV`: (default=`1080`) The port on your host machine connected to the MailDev container's MailDev HTTP server.
-* `PORT_SMTP`: (default=`25`) The port on your host machine connected to the MailDev container's SMTP server.
+* `PORT_INBOX`: (default=`1080`) The port on your host machine connected to the Mailpit container's web interface.
+* `PORT_SMTP`: (default=`25`) The port on your host machine connected to the Mailpit container's SMTP server.
+* `PORT_PHPMY`: (default=`8181`) The port on your host machine connected to the phpMyAdmin container's web interface.
 * `PORT_SFTP`: (default=`1022`) The port on your host machine connected to the SFTP container's SFTP server.
 
 ### Container Environments
@@ -122,7 +123,7 @@ jetpack docker uninstall
 jetpack docker up
 ```
 
-Start the containers (WordPress, MySQL and MailDev) defined in `docker-compose.yml`.
+Start the containers (WordPress, MySQL and Mailpit) defined in `docker-compose.yml`.
 
 This command will rebuild the WordPress container if you made any changes to `docker-compose.yml`.
 
@@ -426,7 +427,7 @@ We recommend to regularly review the log to make sure performance issues don't g
 
 ### Debugging emails
 
-Emails don’t leave your WordPress and are caught by [MailDev](http://danfarrelly.nyc/MailDev/) SMTP server container instead.
+Emails don’t leave your WordPress and are caught by the [Mailpit](https://mailpit.axllent.org/) SMTP server container instead.
 
 To debug emails via web-interface, open [http://localhost:1080](http://localhost:1080)
 

tools/docker/config/ssmtp.conf

@@ -6,7 +6,7 @@
 root=postmaster
 
 # The place where the mail goes.
-mailhub=maildev:25
+mailhub=mailpit:1025
 #UseSTARTTLS=NO
 #AuthUser=
 #AuthPass=

tools/docker/jetpack-docker-config-default.yml

@@ -22,24 +22,24 @@ dev:
         links:
           - db:mysql
         ports:
-          - 8181:80
+          - '${PORT_PHPMY:-8181}:80'
         environment:
           MYSQL_USERNAME: '${MYSQL_USER:-wordpress}'
           MYSQL_ROOT_PASSWORD: '${MYSQL_ROOT_PASSWORD:-wordpress}'
 
       ## SMTP Server + Web Interface for viewing and testing emails during development.
-      ## http://maildev.github.io/maildev/
-      maildev:
-        image: maildev/maildev
+      ## https://mailpit.axllent.org/
+      mailpit:
+        image: axllent/mailpit
+        container_name: mailpit
         ports:
-          - '${PORT_MAILDEV:-1080}:80'
-          - '${PORT_SMTP:-25}:25'
+          - '${PORT_INBOX:-1080}:8025'
+          - '${PORT_SMTP:-25}:1025'
         environment:
-          # It runs in its own container, it may as well use the standard ports instead of 1080 and 1025 so we don't have to reconfigure everything trying to send mail to it.
-          MAILDEV_WEB_PORT: 80
-          MAILDEV_SMTP_PORT: 25
+          MP_SMTP_AUTH_ACCEPT_ANY: 1
+          MP_SMTP_AUTH_ALLOW_INSECURE: 1
 
-      ## SFTP server running at localhost:1022
+      ## SFTP server running at localhost:1022 by default
       sftp:
         image: jmcombs/sftp:alpine
         volumes: