[英]Checking docker container's stats from inside the container
I am writing a healthcheck routine for a docker container. 我正在为Docker容器编写运行状况检查例程。 By design it should check how much CPU and memory it's using and return an "unhealthy"
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if they exceed limits. 根据设计,它应该检查正在使用的CPU和内存量,如果超出限制,则返回“不正常”
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。
Is there a way to check container CPU and memory usage from INSIDE the container by running a .sh script? 有没有一种方法可以通过运行.sh脚本从容器内部检查容器CPU和内存使用情况?
All metrics are available in cgroup filesystem inside container. 所有度量标准都在容器内的cgroup文件系统中可用。 Read more here: https://docs.docker.com/config/containers/runmetrics
在此处阅读更多信息: https : //docs.docker.com/config/containers/runmetrics
The client is connected to the docker socket (/var/run/docker.sock), which is not available inside the container. 客户端连接到Docker套接字(/var/run/docker.sock),该套接字在容器内部不可用。 A workaround would be to mount host's /var/run/docker.sock into the container with the following option when you are starting the container: -v /var/run/docker.sock:/var/run/docker.sock
一种解决方法是在启动容器时使用以下选项将主机的/var/run/docker.sock装入容器:-v /var/run/docker.sock:/var/run/docker.sock
For example, docker run -it -v /var/run/docker.sock:/var/run/docker.sock $MY_IMAGE_NAME 例如,docker run -it -v /var/run/docker.sock:/var/run/docker.sock $ MY_IMAGE_NAME
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