英文:
Keep always running Go http server app inside a Docker container
问题
我有一个运行着我创建的Go二进制文件的Docker容器，它是一个使用Gin框架的HTTP服务器。我没有使用其他的Web服务器，只是使用Go内部的HTTP服务器。在我的Dockerfile文件的末尾，我有以下内容：
EXPOSE 80
CMD ["/home/project/microservices/backend/engine/cmd/main"]
我使用docker-compose来运行容器，并为每个容器设置了"restart: always"。这样就可以正常工作了！
但是我的问题是，如果我创建的HTTP服务器由于编程错误或其他原因而失败，它会重新启动吗？我该如何检查这一点？Docker有相关的工具吗？
我尝试使用Supervisord，但是遇到了一些问题，无法成功运行它。
我想找到一个解决方案，让容器内的HTTP服务器始终保持运行状态。
我该怎么做？
英文:
I have a Docker container that runs just a Go binary I created that is a http server with Gin framework. I don't use any other Web Server, just Go's internal http server. Inside my Dockerfile at the end of file I have this:
EXPOSE 80
CMD ["/home/project/microservices/backend/engine/cmd/main"]
I use docker-compose to run the container and restart: always for each container. And it works!
But my question is that, if the http server that I created fails due to programming error or something, It will restart? how can I check this? does Docker has tools for this?
I tried go with Supervisord but it has some problems and I was not successful on running it.
I want a workaround to keep the http server inside container always running.
What can I do?
答案1
得分: 0
你可以尝试从主机上终止该进程。使用类似以下命令查找进程ID：
ps -aux | grep main
然后使用以下命令终止它：
sudo kill <进程ID>
Docker 将会重新启动该进程。通过使用以下命令：
docker ps
你应该能够看到 'status' 已经变成了类似 Up 10 seconds 的状态。
英文:
You can try killing the process from the host. Find the process id using something like
ps -aux | grep main
Then kill it using
sudo kill <process id>
Docker will then restart it. By using
docker ps
you should see that the 'status' has changed to something like Up 10 seconds.
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