traefik: create wiki and docker image entry

wiki/docker-images/traefik.md

@@ -0,0 +1,189 @@
+# traefik
+
+The official container and documentation was made by
+[traefik](https://hub.docker.com/_/traefik).
+This docker-rebuild is made up by a `docker-compose.yml` file.
+
+## Set-up for config files
+
+First of all create a folder for your `rebuild.sh` and `docker-compose.yml`.
+In that folder create the directories `data/config`.
+
+## Volumes
+
+Set the following volumes in the `volumes:` section of the docker-compose file.
+
+| Outside mount/volume name | Container mount           | Description                             |
+| ------------------------- | ------------------------- | --------------------------------------- |
+| `/etc/localtime`          | `/etc/localtime:ro`       | get the system time                     |
+| `/var/run/docker.sock`    | `/var/run/docker.sock:ro` | get access to view docker container     |
+| `./data/traefik.yml`      | `/traefik.yml:ro`         | basic traefik config                    |
+| `./data/acme.json`        | `/acme.json`              | place to store certificates for https   |
+| `./data/config`           | `/configurations`         | place for dynamically changable configs |
+
+## Ports
+
+Set the following ports in the `ports:` section.
+
+| Container Port | Recommended outside port | Protocol | Description |
+| -------------- | ------------------------ | -------- | ----------- |
+| `80`           | `80`                     | TCP      | http        |
+| `443`          | `443`                    | TCP      | https       |
+
+## Networks
+
+Set the following networks in the `networks:` section of the docker-compose file.
+
+| Name    | Usage                                  |
+| ------- | -------------------------------------- |
+| `proxy` | network to expose http and https ports |
+
+## Labels
+
+Set the following labels in the `labels:` section.
+
+```yml
+  - "traefik.enable=true"
+  - "traefik.docker.network=proxy"
+  - "traefik.http.routers.traefik-secure.entrypoints=websecure"
+  - "traefik.http.routers.traefik-secure.service=api@internal"
+  - "traefik.http.routers.traefik-secure.rule=Host(`traefik.<domain>`)"
+  - "traefik.http.routers.traefik-secure.middlewares=user-auth@file"
+```
+
+The first five lines are for publishing traefik under `traefik.<domain>`.
+The last line is to add authentication.
+
+## rebuild.sh
+
+```shell
+#!/bin/sh
+docker-compose down
+docker pull traefik:v2.4
+docker-compose up -d
+```
+
+## docker-compose.yml
+
+```yml
+version: "3"
+
+services:
+  traefik:
+    image: traefik:v2.4
+    container_name: traefik
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    networks:
+      - proxy
+    ports:
+      - 80:80
+      - 443:443
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - ./data/traefik.yml:/traefik.yml:ro
+      - ./data/acme.json:/acme.json
+      - ./data/config:/configurations
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=proxy"
+      - "traefik.http.routers.traefik-secure.entrypoints=websecure"
+      - "traefik.http.routers.traefik-secure.rule=Host(`traefik.<domain>`)"
+      - "traefik.http.routers.traefik-secure.service=api@internal"
+      - "traefik.http.routers.traefik-secure.middlewares=user-auth@file"
+
+networks:
+  proxy:
+    external: true
+
+```
+
+## data/traefik.yml
+
+```yml
+api:
+  dashboard: true
+
+entryPoints:
+  web:
+    address: :80
+    http:
+      redirections:
+        entryPoint:
+          to: websecure
+
+  websecure:
+    address: :443
+    http:
+      middlewares:
+        - secureHeaders@file
+      tls:
+        certResolver: letsencrypt
+
+providers:
+  docker:
+    endpoint: "unix:///var/run/docker.sock"
+    exposedByDefault: false
+  file:
+    filename: /configurations/dynamic.yml
+
+certificatesResolvers:
+  letsencrypt:
+    acme:
+      email: <email address>
+      storage: acme.json
+      keyType: EC384
+      httpChallenge:
+        entryPoint: web
+```
+
+## data/config/dynamic.yml
+
+In the config replace `username:htpasswd` with the output of
+`echo $(htpasswd -nb <user> <pasword>) | sed -e s/\\$/\\$\\$/g`.
+
+```yml
+http:
+  middlewares:
+    secureHeaders:
+      headers:
+        sslRedirect: true
+        forceSTSHeader: true
+        stsIncludeSubdomains: true
+        stsPreload: true
+        stsSeconds: 31536000
+
+    user-auth:
+      basicAuth:
+        users:
+          - "username:htpasswd"
+
+tls:
+  options:
+    default:
+      cipherSuites:
+        - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
+        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
+      minVersion: VersionTLS12
+```
+
+## Create reverse proxies
+
+To create a reverse proxy from a docker container add the following lines in the
+`labels:` section of the `docker-compose.yml` of the service to proxy.
+
+```yml
+  - "traefik.enable=true"
+  - "traefik.http.routers.gitea-secure.entrypoints=websecure"
+  - "traefik.http.routers.gitea-secure.rule=Host(`<subdomain>.<domain>`)"
+  - "traefik.http.routers.gitea-secure.service=<service name>"
+  - "traefik.http.services.gitea.loadbalancer.server.port=<port>"
+```
+
+This configuration automatically redirects http to https.

wiki/traefik.md

@@ -0,0 +1,9 @@
+# Traefik
+
+[Traeffik](https://github.com/traefik/traefik) is a http reverse proxy with
+a special integration of infrastructure components (e.g. [Docker](./docker.md)).
+
+## Server
+
+A server can be setup via docker with the
+[traefik image](./docker-images/traefik.md).