---
title:
description:
date: 2023-04-16
lang: zh-tw
tags:
- 樹莓派
- Linux
- docker
---
# 樹莓派筆記-安裝 Caddy in docker
嘗試過蠻多的的反代理 nginx, traefik
還是覺得Caddy比較好使用
因為有使用Cloudflare的插件
因此需要自己編譯Caddy

## Dockerfile
`caddy.Dockerfile`

FROM caddy:2.6-builder-alpine AS builder

RUN xcaddy build \
    --with github.com/caddy-dns/cloudflare

FROM caddy:2.6.4-alpine

COPY --from=builder /usr/bin/caddy /usr/bin/caddy

## docker-compose
`docker-compose.yml`

version: '3.3'
networks:
  default:
    name: ${DOCKER_MY_NETWORK}
    external: true
services:
  caddy:
    build:
      context: .
      dockerfile: Dockerfile.caddy
    container_name: caddy
    hostname: caddy
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
      - "443:443/udp"
    volumes:
        #讀取Host主機時間
      - ${HOME_PATH}/caddy/Caddyfile:/etc/caddy/Caddyfile:ro
      - ${HOME_PATH}:/data
      - ${HOME_PATH}:/config  
      - ${HOME_PATH}/logs/caddy:/var/log/caddy 
    env_file: 
      - stack.env

## Caddyfile
`Caddyfile`

{
	acme_dns cloudflare {$CLOUDFLARE_API_TOKEN}
}

whoami.{$MY_DOMAIN} {
	log {
		output file /var/log/caddy/access.log
	}
	reverse_proxy whoami:80
}

portainer.{$MY_DOMAIN} {
	log {
		output file /var/log/caddy/access.log
	}
	reverse_proxy portainer:9000
}

> reverse_proxy 容器名:容器使用端口

## env
`stack.env`

# common.env: Set development environment
DOCKER_MY_NETWORK=caddy_net
MY_DOMAIN=example.com
HOME_PATH=<your path>
CLOUDFLARE_API_TOKEN=<cloudflare api token goes here>

> 創建API參考
> 

## 使用
登入設定好的網址就會看到結果了

`whoami.{$MY_DOMAIN}`

Hostname: 524b538bb131
IP: 127.0.0.1
IP: 172.18.0.3
RemoteAddr: 172.18.0.2:51166
GET / HTTP/1.1
...

`portainer.{$MY_DOMAIN}`

portainer 登入介面

## Ref
* https://hub.docker.com/_/caddy
* https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2
* https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2#--create-api-token-on-cloudflare
* https://caddy.community/t/infinite-redirection/3230/4
* https://docs.docker.com/engine/reference/commandline/build/#specify-a-dockerfile--f
* https://github.com/compose-spec/compose-spec/blob/master/build.md#build-definition