68 lines
1.4 KiB
Markdown
68 lines
1.4 KiB
Markdown
## Compose sample application
|
||
### Python/Flask application
|
||
|
||
Project structure:
|
||
```
|
||
.
|
||
├── docker-compose.yaml
|
||
├── app
|
||
├── Dockerfile
|
||
├── requirements.txt
|
||
└── app.py
|
||
|
||
```
|
||
|
||
[_docker-compose.yaml_](docker-compose.yaml)
|
||
```
|
||
services:
|
||
web:
|
||
build: app
|
||
ports:
|
||
- '5000:5000'
|
||
```
|
||
|
||
## Deploy with docker-compose
|
||
|
||
```
|
||
$ docker-compose up -d
|
||
...
|
||
...
|
||
Status: Downloaded newer image for python
|
||
Creating flask-redis-web1 ... done
|
||
|
||
```
|
||
|
||
## Expected result
|
||
|
||
Listing containers must show one container running and the port mapping as below:
|
||
```
|
||
|
||
$ docker-compose ps
|
||
NAME COMMAND SERVICE STATUS PORTS
|
||
flask-redis-redis-1 "redis-server --load…" redis running 0.0.0.0:6379->6379/tcp
|
||
flask-redis-web-1 "/bin/sh -c 'python …" web running 0.0.0.0:5000->5000/tcp
|
||
```
|
||
|
||
After the application starts, navigate to `http://localhost:5000` in your web browser or run:
|
||
```
|
||
$ curl localhost:5000
|
||
|
||
```
|
||
|
||
## Monitoring Redis keys
|
||
|
||
Connect to redis database by using ```redis-cli``` command and monitor the keys.
|
||
```
|
||
redis-cli -p 6379
|
||
127.0.0.1:6379> monitor
|
||
OK
|
||
1646634062.732496 [0 172.21.0.3:33106] "INCRBY" "hits" "1"
|
||
1646634062.735669 [0 172.21.0.3:33106] "GET" "hits"
|
||
```
|
||
|
||
|
||
Stop and remove the containers
|
||
```
|
||
$ docker-compose down
|
||
```
|