79 lines
2.5 KiB
Markdown
79 lines
2.5 KiB
Markdown
## Compose sample application
|
||
|
||
### Use with Docker Development Environments
|
||
|
||
You can open this sample in the Dev Environments feature of Docker Desktop version 4.12 or later.
|
||
|
||
[Open in Docker Dev Environments <img src="../open_in_new.svg" alt="Open in Docker Dev Environments" align="top"/>](https://open.docker.com/dashboard/dev-envs?url=https://github.com/docker/awesome-compose/tree/master/nginx-flask-mongo)
|
||
|
||
### Python/Flask application with Nginx proxy and a Mongo database
|
||
|
||
Project structure:
|
||
```
|
||
.
|
||
├── compose.yaml
|
||
├── flask
|
||
│ ├── Dockerfile
|
||
│ ├── requirements.txt
|
||
│ └── server.py
|
||
└── nginx
|
||
└── nginx.conf
|
||
|
||
```
|
||
|
||
[_compose.yaml_](compose.yaml)
|
||
```
|
||
services:
|
||
web:
|
||
build: app
|
||
ports:
|
||
- 80:80
|
||
backend:
|
||
build: flask
|
||
...
|
||
mongo:
|
||
image: mongo
|
||
```
|
||
The compose file defines an application with three services `web`, `backend` and `db`.
|
||
When deploying the application, docker compose maps port 80 of the web service container to port 80 of the host as specified in the file.
|
||
Make sure port 80 on the host is not being used by another container, otherwise the port should be changed.
|
||
|
||
## Deploy with docker compose
|
||
|
||
```
|
||
$ docker compose up -d
|
||
Creating network "nginx-flask-mongo_default" with the default driver
|
||
Pulling mongo (mongo:)...
|
||
latest: Pulling from library/mongo
|
||
423ae2b273f4: Pull complete
|
||
...
|
||
...
|
||
Status: Downloaded newer image for nginx:latest
|
||
Creating nginx-flask-mongo_mongo_1 ... done
|
||
Creating nginx-flask-mongo_backend_1 ... done
|
||
Creating nginx-flask-mongo_web_1 ... done
|
||
|
||
```
|
||
|
||
## Expected result
|
||
|
||
Listing containers must show three containers running and the port mapping as below:
|
||
```
|
||
$ docker ps
|
||
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
|
||
a0f4ebe686ff nginx "/bin/bash -c 'envsu…" About a minute ago Up About a minute 0.0.0.0:80->80/tcp nginx-flask-mongo_web_1
|
||
dba87a080821 nginx-flask-mongo_backend "./server.py" About a minute ago Up About a minute nginx-flask-mongo_backend_1
|
||
d7eea5481c77 mongo "docker-entrypoint.s…" About a minute ago Up About a minute 27017/tcp nginx-flask-mongo_mongo_1
|
||
```
|
||
|
||
After the application starts, navigate to `http://localhost:80` in your web browser or run:
|
||
```
|
||
$ curl localhost:80
|
||
Hello from the MongoDB client!
|
||
```
|
||
|
||
Stop and remove the containers
|
||
```
|
||
$ docker compose down
|
||
```
|