devcontainerのDB設定周りの変更

.devcontainer/.env

@@ -3,3 +3,5 @@ SELENIUM_PORT_1=4444
 SELENIUM_PORT_2=5900
 MAILCATCHER_PORT=1080
 RAILS_DB_ADAPTER=postgresql
+POSTGRES_PORT=5433
+MYSQL_PORT=3307

.devcontainer/devcontainer.json

@@ -16,6 +16,7 @@
         "kaiwood.endwise",
         "mtxr.sqltools",
         "mtxr.sqltools-driver-pg",
+        "mtxr.sqltools-driver-mysql",
         "ms-vsliveshare.vsliveshare"
       ],
       "settings": {
@@ -30,9 +31,19 @@
                 "driver": "PostgreSQL",
                 "name": "app_development",
                 "database": "app_development",
-                "username": "db_user",
-                "password": "password"
-            }
+                "username": "postgres",
+                "password": "postgres"
+            },
+            {
+              "previewLimit": 50,
+              "server": "mysqldb",
+              "port": 3306,
+              "driver": "MySQL",
+              "name": "app_development",
+              "database": "app_development",
+              "username": "root",
+              "password": "password"
+          },
         ]
       }
     }

.devcontainer/docker-compose.yml

@@ -10,15 +10,18 @@ services:
     environment:
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres
+    ports:
+      - $POSTGRES_PORT:5432
 
   # MySQL
   # mysqldb:
   #   image: mysql:5
+  #   platform: linux/amd64
   #   restart: on-failure:5
   #   environment:
   #     MYSQL_ROOT_PASSWORD: password
-  #     MYSQL_PASSWORD: password
-  #     MYSQL_USER: db_user
+  #   ports:
+  #     - $MYSQL_PORT:3306
 
   app:
     build:
@@ -33,13 +36,22 @@ services:
         # Optional Node.js version to install
         NODE_VERSION: "14"
     environment:
+      # PostgreSQL
       RAILS_DB_ADAPTER: postgresql
       RAILS_DB_HOST: postgresdb
       RAILS_DB: app
       RAILS_DB_USERNAME: postgres
       RAILS_DB_PASSWORD: postgres
       RAILS_DB_ENCODING: utf8
       RAILS_ENV: development
+      # # MySQL
+      # RAILS_DB_ADAPTER: mysql2
+      # RAILS_DB_HOST: mysqldb
+      # RAILS_DB: app
+      # RAILS_DB_USERNAME: root
+      # RAILS_DB_PASSWORD: password
+      # RAILS_DB_ENCODING: utf8mb4
+      # RAILS_ENV: development
     env_file: .env
     tty: true
     ports:

README.md

@@ -70,6 +70,9 @@ SELENIUM_PORT_2=5900
 MAILCATCHER_PORT=1080
 # mysqlやsqlite3に変えても良い。mysqlの場合、.devcontainer/docker-compose.ymlのMySQL関連のコメントアウトを外す
 RAILS_DB_ADAPTER=postgresql
+# postgres、mysqlのホスト側への公開ポート。ホスト側で既に使っている場合は変える
+POSTGRES_PORT=5433
+MYSQL_PORT=3307
 ```
 
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