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.
103 lines
3.2 KiB
Markdown
103 lines
3.2 KiB
Markdown
## Compose sample application
|
|
### TRAEFIK proxy with GO backend
|
|
|
|
Project structure:
|
|
```
|
|
.
|
|
├── backend
|
|
│ ├── Dockerfile
|
|
│ └── main.go
|
|
├── compose.yaml
|
|
└── README.md
|
|
```
|
|
|
|
[_compose.yaml_](compose.yaml)
|
|
```
|
|
services:
|
|
frontend:
|
|
image: traefik:2.6
|
|
command: --providers.docker --entrypoints.web.address=:80 --providers.docker.exposedbydefault=false
|
|
ports:
|
|
# The HTTP port
|
|
- "80:80"
|
|
volumes:
|
|
# So that Traefik can listen to the Docker events
|
|
- /var/run/docker.sock:/var/run/docker.sock
|
|
depends_on:
|
|
- backend
|
|
backend:
|
|
build: backend
|
|
labels:
|
|
- "traefik.enable=true"
|
|
- "traefik.http.routers.go.rule=Path(`/`)"
|
|
- "traefik.http.services.go.loadbalancer.server.port=80"
|
|
|
|
```
|
|
The compose file defines an application with two services `frontend` and `backend`.
|
|
When deploying the application, docker compose maps port 80 of the frontend service container to the same port of the host as specified in the file.
|
|
Make sure port 80 on the host is not already being in use.
|
|
|
|
## Deploy with docker compose
|
|
|
|
```
|
|
$ docker compose up -d
|
|
Creating network "traefik-golang_default" with the default driver
|
|
Building backend
|
|
Step 1/7 : FROM golang:1.13 AS build
|
|
1.13: Pulling from library/golang
|
|
...
|
|
Successfully built 22397f6cd4bc
|
|
Successfully tagged traefik-golang_backend:latest
|
|
WARNING: Image for service backend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
|
|
Pulling frontend (traefik:2.6)...
|
|
2.6: Pulling from library/traefik
|
|
8663204ce13b: Pull complete
|
|
1a6b5dadc224: Pull complete
|
|
c7891231da41: Pull complete
|
|
9e3c91eff4e8: Pull complete
|
|
Digest: sha256:9dc508fe4f1516b81ec97ed37dd4f3b406f02eda72c7c0dcd9f74d23fbc82239
|
|
Status: Downloaded newer image for traefik:2.6
|
|
Creating traefik-golang_backend_1 ... done
|
|
Creating traefik-golang_frontend_1 ... done
|
|
```
|
|
|
|
## Expected result
|
|
|
|
Listing containers must show two containers running and the port mapping as below:
|
|
```
|
|
$ docker ps
|
|
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
|
|
e0a0f3191042 traefik:2.6 "/entrypoint.sh --pr…" 42 seconds ago Up 42 seconds 0.0.0.0:80->80/tcp, :::80->80/tcp traefik-golang-frontend-1
|
|
662d1506f1fd traefik-golang_backend "/usr/local/bin/back…" 42 seconds ago Up 42 seconds traefik-golang-backend-1
|
|
```
|
|
|
|
After the application starts, navigate to `http://localhost:80` in your web browser or run:
|
|
```
|
|
$ curl localhost:80
|
|
|
|
## .
|
|
## ## ## ==
|
|
## ## ## ## ## ===
|
|
/"""""""""""""""""\___/ ===
|
|
{ / ===-
|
|
\______ O __/
|
|
\ \ __/
|
|
\____\_______/
|
|
|
|
|
|
Hello from Docker!
|
|
```
|
|
|
|
Stop and remove the containers
|
|
```
|
|
$ docker compose down
|
|
```
|
|
|
|
## Use with Docker Development Environments
|
|
|
|
You can use this sample with the Dev Environments feature of Docker Desktop.
|
|
To develop directly the backend service inside containers, you just need to use the https git url of the sample:
|
|
`https://github.com/docker/awesome-compose/tree/master/traefik-golang`
|
|
|
|
|