基于 Docker 的 SSH Forward 转发服务

.ssh_config

Host forward.service
   User root
   ProxyCommand websocat --binary -k wss://websocket-over-https.example.com
   PreferredAuthentications publickey
   IdentitiesOnly yes
   RequestTTY no
   ServerAliveInterval 10
   ServerAliveCountMax 3
   TCPKeepAlive yes
   LocalForward 127.0.0.1:60000 172.6.6.6:22

docker-compose.ssh-forward.yaml

services:
  ssh-forward:
    image: shine09/ssh-client-websocat:latest
    restart: always
    volumes:
      - /home/user1/.ssh:/root/.ssh:ro

    command: [ "ssh", "-vvv", "-N", "-o", "ExitOnForwardFailure=yes", "forward.service" ]
    ports:
      - "60000:60000"
      - "60042:60042"
      - "60043:60043"
      - "60011:60011"
      - "60012:60012"
      - "60013:60013"
      - "60014:60014"
      - "60020:60020"
      - "60030:60030"
      - "60031:60031"

Dockerfile

FROM alpine:3.21

ADD https://github.com/vi/websocat/releases/download/v1.14.0/websocat.x86_64-unknown-linux-musl /usr/bin/websocat

RUN chmod +x /usr/bin/websocat && \
  apk add --no-cache \
  openssh-client \
  ca-certificates \
  bash