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667bd9facb
* Adopt Compose v2 Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com> |
3 years ago | |
|---|---|---|
| .. | ||
| backend | 5 years ago | |
| README.md | 3 years ago | |
| compose.yaml | 3 years ago | |
README.md
Compose sample application
TRAEFIK proxy with GO backend
Project structure:
.
├── backend
│ ├── Dockerfile
│ └── main.go
├── compose.yaml
└── README.md
services:
frontend:
image: traefik:2.2
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:2.2)...
2.2: Pulling from library/traefik
aad63a933944: Pull complete
f365f1b91ebb: Pull complete
dc367a6045f5: Pull complete
ff697159d003: Pull complete
Digest: sha256:615483752426932469aa2229ef3f0825b33b3ad7e1326dcd388205cb3a74352e
Status: Downloaded newer image for traefik:2.2
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
e845f50da9e6 traefik:2.2 "/entrypoint.sh --pr…" 55 seconds ago Up 54 seconds 0.0.0.0:80->80/tcp traefik-golang_frontend_1
e164ffd692e8 traefik-golang_backend "/usr/local/bin/back…" 55 seconds ago Up 54 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