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@@ -1,3 +1,25 @@
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# watchtower
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-自动更新docker容器
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+自动更新docker容器
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+
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+通常需要docker pull, docker stop, docker rm, docker run等步骤来更新docker服务，但 watchtower 作为一个容器可以监听正在运行的容器是否有新版本，
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+
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+## Develop
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+
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+
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+```
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+$ docker run -d --name watchtower \
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+-v /var/run/docker.sock:/var/run/docker.sock \
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+containrrr/watchtower
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+
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+
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+$ docker run -d --name watchtower \
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+-e WATCHTOWER_POLL_INTERVAL=10 \
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+-v /var/run/docker.sock:/var/run/docker.sock \
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+containrrr/watchtower
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+```
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+
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+
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+## Reference
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+
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+https://github.com/containrrr/watchtower
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