Saat menggunakan traefik di docker, Traefik menggunakan containers label untuk mengambil konfigurasi perutean. Sehingga pada panduan ini akan membahas beberapa cara untuk merutekan request yang masuk ke traefik agar dapat didistribusikan ke container sesuai kebutuhan.
Routing Configurations #
Docker CLI
docker run -dit --name test \
-l test --label 'traefik.http.routers.test3.rule=Host(`web5.example.com`)' \
traefik/whoami
Host subdomain dapat Anda sesuaikan dan pastikan subdomain sudah disetting A record ke tujuan host traefik
Docker compose
version: '3'
services:
...
web:
image: traefik/whoami
labels:
- traefik.http.routers.web.rule=Host(`web5.example.com`)
List rules yang dapat Anda gunakan.
| Rule | Description |
|---|---|
Headers(`key`, `value`) |
Check if there is a key keydefined in the headers, with the value value |
HeadersRegexp(`key`, `regexp`) |
Check if there is a key keydefined in the headers, with a value that matches the regular expression regexp |
Host(`example.com`, ...) |
Check if the request domain (host header value) targets one of the given domains. |
HostHeader(`example.com`, ...) |
Same as Host, only exists for historical reasons. |
HostRegexp(`example.com`, `{subdomain:[a-z]+}.example.com`, ...) |
Match the request domain. See “Regexp Syntax” below. |
Method(`GET`, ...) |
Check if the request method is one of the given methods (GET, POST, PUT, DELETE, PATCH, HEAD) |
Path(`/path`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`, ...) |
Match exact request path. See “Regexp Syntax” below. |
PathPrefix(`/products/`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`) |
Match request prefix path. See “Regexp Syntax” below. |
Query(`foo=bar`, `bar=baz`) |
Match Query String parameters. It accepts a sequence of key=value pairs. |
ClientIP(`10.0.0.0/16`, `::1`) |
Match if the request client IP is one of the given IP/CIDR. It accepts IPv4, IPv6 and CIDR formats. |
Port Detection #
Untuk simulasinya adalah menginstall MinIO lalu setting traefik ke tujuan dashboard MinIO (:9090) agar dapat diakses dengan domain atau subdomain.
Docker CLI
Install MinIO
docker run -dit --name minio \
-p 9000:9000 -p 9090:9090 \
-v /mnt/disk1:/data \
-l minio --label 'traefik.http.routers.minio.rule=Host(`web5.example.com`)' \
--label 'traefik.http.services.minio.loadbalancer.server.port=9090' \
-e MINIO_ROOT_USER=admin \
-e MINIO_ROOT_PASSWORD=admin123 \
minio/minio server /data --console-address ":9090"
Lalu install traefik
docker run -dit --name traefik \
-p 8080:8080 -p 80:80 \
-v /opt/traefik/traefik.yml:/etc/traefik/traefik.yml \
-v /var/run/docker.sock:/var/run/docker.sock \
traefik --api=true --api.debug=true --api.dashboard=true --api.insecure=true
Selanjutnya coba akses http://web5.example.com
Docker compose
version: '3'
services:
traefik:
image: traefik
command: --api=true --api.debug=true --api.dashboard=true --api.insecure=true
ports:
- "80:80"
- "8080:8080"
volumes:
- "/root/traefik/traefik.yml:/etc/traefik/traefik.yml"
- "/var/run/docker.sock:/var/run/docker.sock"
minio:
image: minio/minio
command: server /data --console-address ":9090"
environment:
- "MINIO_ROOT_USER=admin"
- "MINIO_ROOT_PASSWORD=admin123"
ports:
- 9000:9000
labels:
- "traefik.http.routers.minio.rule=Host(`web5.example.com`)"
- "traefik.http.services.minio.loadbalancer.server.port=9090"
volumes:
- "/mnt/disk1:/data"
Deploy stack
docker stack deploy -c docker-compose.yml traefik
Selanjutnya coba akses http://web5.example.com
Referensi :