[리눅스] traefik을 사용하는 도커 컨테이너 리버스 프록시(docker container reverse proxy)

traefik을 사용하는 도커 컨테이너 리버스 프록시(docker container reverse proxy)

docker-compose.yml 기본 예제

docker-compose.yml 편집

vim docker-compose.yml

version: "3.3"

services:

  traefik:
    image: "traefik:v2.9"
    container_name: "traefik"
    command:
      #- "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  whoami:
    image: "traefik/whoami"
    container_name: "simple-service"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost`)"
      - "traefik.http.routers.whoami.entrypoints=web"

docker-compose up -d

docker-compose ps

$ docker-compose ps
NAME                IMAGE               COMMAND                  SERVICE             CREATED             STATUS              PORTS
simple-service      traefik/whoami      "/whoami"                whoami              4 minutes ago       Up 4 minutes        80/tcp
traefik             traefik:v2.9        "/entrypoint.sh --ap…"   traefik             4 minutes ago       Up 4 minutes        0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp

웹 브라우저

- http://192.168.0.51:8080

Quick Start

출처-https://doc.traefik.io/traefik/assets/img/quickstart-diagram.png

 

docker-compose.yml 편집

vim docker-compose.yml

version: '3.9'
services:

  traefik:
    image: traefik:v2.9
    container_name: traefik
    command:
      - --api.insecure=true
      - --providers.docker
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    ports:
      - 80:80
      - 8080:8080

  whoami:
    image: traefik/whoami
    labels:
      - traefik.http.routers.whoami.rule=Host(`whoami.docker.localhost`)

docker-compose up -d

docker-compose ps

$ docker-compose ps
NAME                      IMAGE               COMMAND                  SERVICE             CREATED             STATUS              PORTS
docker-traefik-whoami-1   traefik/whoami      "/whoami"                whoami              11 seconds ago      Up 10 seconds       80/tcp
traefik                   traefik:v2.9        "/entrypoint.sh --ap…"   traefik             11 seconds ago      Up 10 seconds       0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp

curl -H Host:whoami.docker.localhost http://127.0.0.1

$ curl -H Host:whoami.docker.localhost http://127.0.0.1 
Hostname: ac51c3f7939b
IP: 127.0.0.1
IP: 172.25.0.2
RemoteAddr: 172.25.0.3:44900
GET / HTTP/1.1
Host: whoami.docker.localhost
User-Agent: curl/7.81.0
Accept: */*
Accept-Encoding: gzip
X-Forwarded-For: 172.25.0.1
X-Forwarded-Host: whoami.docker.localhost
X-Forwarded-Port: 80
X-Forwarded-Proto: http
X-Forwarded-Server: a1bdb1a9a962
X-Real-Ip: 172.25.0.1

whoami 컨테이너를 하나 더 실행시킵니다.

docker-compose up -d --scale whoami=2

$ docker-compose ps
NAME                      IMAGE               COMMAND                  SERVICE             CREATED             STATUS              PORTS
docker-traefik-whoami-1   traefik/whoami      "/whoami"                whoami              13 seconds ago      Up 13 seconds       80/tcp
docker-traefik-whoami-2   traefik/whoami      "/whoami"                whoami              14 seconds ago      Up 12 seconds       80/tcp
traefik                   traefik:v2.9        "/entrypoint.sh --ap…"   traefik             2 minutes ago       Up 2 minutes        0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp

curl -H Host:whoami.docker.localhost http://127.0.0.1

$ curl -H Host:whoami.docker.localhost http://127.0.0.1
Hostname: f595e0603765
IP: 127.0.0.1
IP: 172.25.0.2
RemoteAddr: 172.25.0.3:43366
GET / HTTP/1.1
Host: whoami.docker.localhost
...

$ curl -H Host:whoami.docker.localhost http://127.0.0.1
Hostname: c719743b21fd
IP: 127.0.0.1
IP: 172.25.0.4
RemoteAddr: 172.25.0.3:36454
GET / HTTP/1.1
Host: whoami.docker.localhost
...

 

참고URL

- Quick Start : https://doc.traefik.io/traefik/getting-started/quick-start/

- traefiklabs(user guides) : https://doc.traefik.io/traefik/user-guides/docker-compose/basic-example/

- traefik docs : https://doc.traefik.io/traefik/getting-started/configuration-overview/

- Traefik & Docker : https://doc.traefik.io/traefik/providers/docker

- Let's Encrypt : https://doc.traefik.io/traefik/https/acme/#providers

- docker hub : https://registry.hub.docker.com/_/traefik/tags

- Traefik Proxy with HTTPS: https://dockerswarm.rocks/traefik/