Docker中的503服務暫時不可用nginx / 1.13.3

Question

我正在嘗試使用jwilder/nginx-proxy: alpine來啟動nginx ，以下是docker run命令和步驟：

步驟1 ： docker run -d -p 80:80 -p 443:443 -v /var/run/docker.sock:/tmp/docker.sock:ro --name nginx jwilder/nginx-proxy:alpine

步驟2 ：在ec2實例的安全組中打開端口80 ，並嘗試連接到ip:80/ ，但錯誤如下所示503服務暫時不可用nginx / 1.13.3

碼頭工人日志說：

WARNING: /etc/nginx/dhparam/dhparam.pem was not found. A pre-generated dhparam.pem will be used for now while a new one
is being generated in the background.  Once the new dhparam.pem is in place, nginx will be reloaded.
forego     | starting dockergen.1 on port 5000
Generating DH parameters, 2048 bit long safe prime, generator 2
forego     | starting nginx.1 on port 5100
dockergen.1 | 2017/08/14 13:45:44 Generated '/etc/nginx/conf.d/default.conf' from 4 containers
dockergen.1 | 2017/08/14 13:45:44 Running 'nginx -s reload'
dockergen.1 | 2017/08/14 13:45:44 Watching docker events
dockergen.1 | 2017/08/14 13:45:44 Contents of /etc/nginx/conf.d/default.conf did not change. Skipping notification 'nginx -s reload'
nginx.1    | ec2-xx.xx.xxx.xx..ap-xyz-5.compute.amazonaws.com xx.xxx.xxx.x -     "GET / HTTP/1.1" 503 615 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36"
nginx.1    | ec2-xx.xxx.xxxx.xxx.ap-xyz-5.compute.amazonaws.com xx.xx.xx.xxx  "GET /favicon.ico HTTP/1.1" 503 615 "http://ec2-xx.xxx.xx.xx.ap-xyz-5.compute.amazonaws.com/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36"

Answer 1

jwilder/nginx-proxy並沒有多大意義。 魔術背后的腳本檢查其他容器的環境變量，並生成相應的規則，以從hostname from another container as defined in env var : port defined the same way反向代理，以與上述容器和端口hostname from another container as defined in env var : port defined the same way 。

此處的鍵是“來自另一個容器的主機名”。 當您嘗試使用您所說的IP連接時，Nginx不會代理轉發您。

這是jwielder / nginx的README.md的github存儲庫中的示例

version: '2'

services:
  nginx-proxy:
    image: jwilder/nginx-proxy
    ports:
      - "80:80"
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro

  whoami:
    image: jwilder/whoami
    environment:
      - VIRTUAL_HOST=whoami.local         <================

運行此命令，編輯您的主機文件（類似於sudo vim /etc/hosts ），添加[ec2ip] whoami.local然后打開瀏覽器訪問http：//whoami.local ，就可以了。