Added wait script to ping mySQL db container until it's up

.env.default

@@ -1,3 +1,9 @@
 DATABASE_HOST=localhost
 MYSQL_DATABASE=cherrytwist
-MYSQL_ROOT_PASSWORD=toor
+MYSQL_ROOT_PASSWORD=toor
+WAIT_HOSTS=localhost:3306
+WAIT_HOSTS_TIMEOUT=300
+WAIT_SLEEP_INTERVAL=30
+WAIT_HOST_CONNECT_TIMEOUT=30
+
+COMPOSE_PROJECT_NAME=cherrytwist-server

.env.docker

@@ -1,5 +1,9 @@
 DATABASE_HOST=db
 MYSQL_DATABASE=cherrytwist
 MYSQL_ROOT_PASSWORD=toor
+WAIT_HOSTS=db:3306
+WAIT_HOSTS_TIMEOUT=300
+WAIT_SLEEP_INTERVAL=30
+WAIT_HOST_CONNECT_TIMEOUT=30
 
 COMPOSE_PROJECT_NAME=cherrytwist-server

Dockerfile

@@ -17,5 +17,9 @@ RUN npm install
 COPY ./src ./src
 COPY ./tsconfig.json .
 
+## Add the wait script to the image
+ADD https://github.com/ufoscout/docker-compose-wait/releases/download/2.7.3/wait /wait
+RUN chmod +x /wait
+
 EXPOSE 4000
 CMD [ "npm", "start" ]

docker-compose.debug.yml

@@ -13,13 +13,17 @@ services:
       - DATABASE_HOST
       - MYSQL_ROOT_PASSWORD
       - MYSQL_DATABASE
+      - WAIT_HOSTS
+      - WAIT_HOSTS_TIMEOUT
+      - WAIT_SLEEP_INTERVAL
+      - WAIT_HOST_CONNECT_TIMEOUT
     depends_on:
       - db
     restart: always
     ports:
       - 4000:4000
       - 9330:9330
-    command: ["npm", "--inspect=0.0.0.0:9330", "start"]
+    command: sh -c "/wait && npm --inspect=0.0.0.0:9330 start"
   db:
     image: mysql:8.0.11
     networks:

docker-compose.yml

@@ -14,12 +14,16 @@ services:
       - DATABASE_HOST
       - MYSQL_ROOT_PASSWORD
       - MYSQL_DATABASE
+      - WAIT_HOSTS
+      - WAIT_HOSTS_TIMEOUT
+      - WAIT_SLEEP_INTERVAL
+      - WAIT_HOST_CONNECT_TIMEOUT
     depends_on:
       - db
     restart: always
     ports:
       - 4000:4000
-    command: ["npm", "start"]
+    command: sh -c "/wait && npm start"
   db:
     container_name: ct_server_db
     image: mysql:8.0.11