27 lines
1.1 KiB
Bash
27 lines
1.1 KiB
Bash
#!/bin/sh
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# SSH reverse-туннель из контейнера на VPS:
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# VPS:127.0.0.1:$VPS_TUNNEL_PORT -> $UPSTREAM (сервис app по сети compose)
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# Ключ монтируется снаружи в /key/id_tunnel (см. docker-compose*.yml).
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set -eu
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: "${VPS_TUNNEL_HOST:?VPS_TUNNEL_HOST is required}"
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VPS_TUNNEL_USER="${VPS_TUNNEL_USER:-tunnel}"
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: "${VPS_TUNNEL_PORT:?VPS_TUNNEL_PORT is required}"
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UPSTREAM="${UPSTREAM:-app:8000}"
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# Копируем ключ и выставляем строгие права (с хоста права могут не годиться, особенно с Windows).
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mkdir -p /root/.ssh
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cp /key/id_tunnel /root/.ssh/id_tunnel
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chmod 600 /root/.ssh/id_tunnel
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echo "[tunnel] -R ${VPS_TUNNEL_PORT}:${UPSTREAM} -> ${VPS_TUNNEL_USER}@${VPS_TUNNEL_HOST}"
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exec ssh -N \
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-o BatchMode=yes \
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-o ServerAliveInterval=30 -o ServerAliveCountMax=3 \
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-o ExitOnForwardFailure=yes \
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-o StrictHostKeyChecking=accept-new \
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-o UserKnownHostsFile=/root/.ssh/known_hosts \
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-i /root/.ssh/id_tunnel \
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-R "${VPS_TUNNEL_PORT}:${UPSTREAM}" \
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"${VPS_TUNNEL_USER}@${VPS_TUNNEL_HOST}"
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