Backport [56464].

https://core.trac.wordpress.org/changeset/56464

.github/workflows/phpunit-tests.yml

@@ -30,7 +30,6 @@ concurrency:
 # Any needed permissions should be configured at the job level.
 permissions: {}
 
-
 jobs:
   #
   # Creates a PHPUnit test job for each PHP/MySQL combination.

docker-compose.yml

@@ -23,7 +23,10 @@ services:
     command: /bin/sh -c "envsubst '$$LOCAL_DIR' < /etc/nginx/conf.d/default.template > /etc/nginx/conf.d/default.conf && exec nginx -g 'daemon off;'"
 
     depends_on:
-      - php
+      php:
+        condition: service_started
+      mysql:
+        condition: service_healthy
 
   ##
   # The PHP container.
@@ -50,9 +53,6 @@ services:
     # Copy or delete the Memcached dropin plugin file as appropriate.
     command: /bin/sh -c "if [ $LOCAL_PHP_MEMCACHED = true ]; then cp -n /var/www/tests/phpunit/includes/object-cache.php /var/www/src/wp-content/object-cache.php; else rm -f /var/www/src/wp-content/object-cache.php; fi && exec php-fpm"
 
-    depends_on:
-      - mysql
-
     # The init directive ensures the command runs with a PID > 1, so Ctrl+C works correctly.
     init: true
 
@@ -82,6 +82,12 @@ services:
     # For compatibility with PHP versions that don't support the caching_sha2_password auth plugin used in MySQL 8.0.
     command: --default-authentication-plugin=mysql_native_password
 
+    healthcheck:
+      test: [ "CMD-SHELL", "if [ \"$LOCAL_DB_TYPE\" = \"mariadb\" ]; then mariadb-admin ping -h localhost; else mysqladmin ping -h localhost; fi" ]
+      timeout: 5s
+      interval: 5s
+      retries: 10
+
   ##
   # The WP CLI container.
   ##
@@ -106,6 +112,12 @@ services:
     extra_hosts:
       - localhost:host-gateway
 
+    depends_on:
+      php:
+        condition: service_started
+      mysql:
+        condition: service_healthy
+
   ##
   # The Memcached container.
   ##
@@ -118,6 +130,10 @@ services:
     ports:
       - 11211:11211
 
+    depends_on:
+      php:
+        condition: service_started
+
 volumes:
   # So that sites aren't wiped every time containers are restarted, MySQL uses a persistent volume.
   mysql: {}