SSH配置文件端口转发无法在Docker中正常工作(撰写)

时间:2018-08-01 04:46:48

标签: docker ssh openssh alpine

我有一个包含Nginx,php,redis和专用于SSH隧道的容器的Docker Compose文件。

我的Mac上有一个ssh配置文件,该文件可以在运行ssh my-tunnel时按预期工作,并且通过文件./ssh/config暴露给图像

这是我的ssh隧道的Dockerfile

FROM alpine:edge

RUN apk add --update openssh-client && rm -rf /var/cache/apk/*

# cagataygurturk/docker-ssh-tunnel:0.0.1
CMD rm -rf /root/.ssh && mkdir /root/.ssh && \
    cp /run/secrets/ssh_config /root/.ssh/config && \
    cp /run/secrets/ssh_key /root/.ssh/id_rsa && \
    chmod -R 600 /root/.ssh/* && \
    # see https://man.openbsd.org/ssh
    ssh -4 -o StrictHostKeyChecking=no -N $TUNNEL_HOST \
    && while true; do sleep 30; done;
EXPOSE 1-65535

这是我的docker-compose.yaml(摘要)

version: '3.1'

services:
  php:
    ...
    links:
     - ssh-tunnel

  ssh-tunnel:
    build:
      context: ./ssh
    secrets:
      - ssh_config
      - ssh_key
    environment:
      TUNNEL_HOST: my-tunnel

secrets:
  ssh_config:
    file: ./ssh/config
  ssh_key:
    file: ./ssh/id_rsa

我从此容器获得的唯一输出是Warning: Permanently added '[IP_SPECIFIED_IN_CONFIG]:PORT_SPECIFIED_IN_CONFIG_FILE' (ECDSA) to the list of known hosts.,应用程序无法连接到隧道服务。解决此问题的唯一方法是将CMD更改为

CMD rm -rf /root/.ssh && mkdir /root/.ssh && \
cp /run/secrets/ssh_config /root/.ssh/config && \
cp /run/secrets/ssh_key /root/.ssh/id_rsa && \
chmod -R 600 /root/.ssh/* && \
# see https://man.openbsd.org/ssh
ssh -4 -o StrictHostKeyChecking=no -N $TUNNEL_HOST \
-L *:$LOCAL_PORT_1:$REMOTE_HOST_1:$REMOTE_PORT_1 \
-L *:$LOCAL_PORT_2:$REMOTE_HOST_2:$REMOTE_PORT_2 \
&& while true; do sleep 30; done;

这并不理想,因为需要多个本地转发,否则我将只使用this container

为什么使用命令行选项-L未指定本地转发的配置不起作用?我知道正在读取配置文件(包含本地转发),因为IP地址已添加到known_hosts。

netstat -an的输出

# WORKING
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address            Foreign Address         
State
tcp        0      0 127.0.0.11:34951         0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:$LOCAT_PORT_2  0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:$LOCAL_PORT_1  0.0.0.0:*               LISTEN
tcp        0      0 172.20.0.3:34902         HostName:Port     
ESTABLISHED
udp        0      0 127.0.0.11:50743         0.0.0.0:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path

# NOT WORKING
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 0.0.0.0:$LOCAL_PORT_2   0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.11:39857        0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:$LOCAL_PORT_1   0.0.0.0:*               LISTEN
tcp        0      0 172.21.0.3:47994        Hostname:Port     ESTABLISHED
udp        0      0 127.0.0.11:42928        0.0.0.0:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path

1 个答案:

答案 0 :(得分:1)

在我的〜/ .ssh / config文件中找到了答案

LocalForward PORT PUBLIC_URL:PORT

代替

LocalForward *:PORT PUBLIC_URL:PORT