You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.0 KiB
Markdown
92 lines
3.0 KiB
Markdown
## Compose sample application
|
|
### React application with a NodeJS backend and a MySQL database
|
|
|
|
Project structure:
|
|
```
|
|
.
|
|
├── backend
|
|
│ ├── Dockerfile
|
|
│ ...
|
|
├── db
|
|
│ └── password.txt
|
|
├── docker-compose.yaml
|
|
├── frontend
|
|
│ ├── ...
|
|
│ └── Dockerfile
|
|
└── README.md
|
|
```
|
|
|
|
[_docker-compose.yaml_](docker-compose.yaml)
|
|
```
|
|
services:
|
|
backend:
|
|
build: backend
|
|
ports:
|
|
- 80:80
|
|
- 9229:9229
|
|
- 9230:9230
|
|
...
|
|
db:
|
|
image: mysql:8.0.19
|
|
...
|
|
frontend:
|
|
build: frontend
|
|
ports:
|
|
- 3000:3000
|
|
...
|
|
```
|
|
The compose file defines an application with three services `frontend`, `backend` and `db`.
|
|
When deploying the application, docker-compose maps port 3000 of the frontend service container to port 3000 of the host as specified in the file.
|
|
Make sure port 3000 on the host is not already being in use.
|
|
|
|
## Deploy with docker-compose
|
|
|
|
```
|
|
$ docker-compose up -d
|
|
Creating network "react-express-mysql_default" with the default driver
|
|
Building backend
|
|
Step 1/16 : FROM node:10
|
|
---> aa6432763c11
|
|
...
|
|
Successfully tagged react-express-mysql_frontend:latest
|
|
WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
|
|
Creating react-express-mysql_db_1 ... done
|
|
Creating react-express-mysql_backend_1 ... done
|
|
Creating react-express-mysql_frontend_1 ... done
|
|
```
|
|
|
|
## Expected result
|
|
|
|
Listing containers must show containers running and the port mapping as below:
|
|
```
|
|
$ docker ps
|
|
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
|
|
f3e1183e709e react-express-mysql_frontend "docker-entrypoint.s…" 8 minutes ago Up 8 minutes 0.0.0.0:3000->3000/tcp react-express-mysql_frontend_1
|
|
9422da53da76 react-express-mysql_backend "docker-entrypoint.s…" 8 minutes ago Up 8 minutes (healthy) 0.0.0.0:80->80/tcp, 0.0.0.0:9229-9230->9229-9230/tcp react-express-mysql_backend_1
|
|
a434bce6d2be mysql:8.0.19 "docker-entrypoint.s…" 8 minutes ago Up 8 minutes 3306/tcp, 33060/tcp react-express-mysql_db_1
|
|
```
|
|
|
|
After the application starts, navigate to `http://localhost:3000` in your web browser.
|
|
|
|
|
|
|
|
|
|
The backend service container has the port 80 mapped to 80 on the host.
|
|
```
|
|
$ curl localhost:80
|
|
{"message":"Hello from MySQL 8.0.19"}
|
|
```
|
|
|
|
Stop and remove the containers
|
|
```
|
|
$ docker-compose down
|
|
Stopping react-express-mysql_frontend_1 ... done
|
|
Stopping react-express-mysql_backend_1 ... done
|
|
Stopping react-express-mysql_db_1 ... done
|
|
Removing react-express-mysql_frontend_1 ... done
|
|
Removing react-express-mysql_backend_1 ... done
|
|
Removing react-express-mysql_db_1 ... done
|
|
Removing network react-express-mysql_default
|
|
|
|
```
|