Merge pull request rails#54694 from yahonda/set_mysql_codebases_environment_variable

Enable `MYSQL_CODESPACES` environment variable in the devcontainer

Author: yahonda

.devcontainer/boot.sh

@@ -14,4 +14,4 @@ cd activerecord || { echo "activerecord directory doesn't exist"; exit; }
 bundle exec rake db:postgresql:rebuild
 
 # Create MySQL databases
-MYSQL_CODESPACES=1 bundle exec rake db:mysql:rebuild
+bundle exec rake db:mysql:rebuild

.devcontainer/compose.yaml

@@ -16,6 +16,9 @@ services:
       - redis
       - memcached
 
+    environment:
+      MYSQL_CODESPACES: "1"
+
     # Use "forwardPorts" in **devcontainer.json** to forward an app port locally.
     # (Adding the "ports" property to this file will not forward from a Codespace.)
 

railties/test/isolation/abstract_unit.rb

@@ -539,6 +539,9 @@ def use_mysql2(multi_db: false)
             adapter: mysql2
             pool: 5
             username: root
+          <% if ENV['MYSQL_CODESPACES'] %>
+            password: 'root'
+          <% end %>
           <% if ENV['MYSQL_HOST'] %>
             host: <%= ENV['MYSQL_HOST'] %>
           <% end %>
@@ -562,6 +565,9 @@ def use_mysql2(multi_db: false)
             adapter: mysql2
             pool: 5
             username: root
+          <% if ENV['MYSQL_CODESPACES'] %>
+            password: 'root'
+          <% end %>
           <% if ENV['MYSQL_HOST'] %>
             host: <%= ENV['MYSQL_HOST'] %>
           <% end %>