Programmatically delete files/folders in Docker container


Jimit Joshi:

I'm currently exploring how to programmatically delete files/folders inside a docker container. I know we can use docker cp to copy files from container to host. However, I'm looking for something like docker mv or docker rm that allows me to move or delete files/folders in docker.

The scenario is, we are writing automated test cases in Java, for one case we need to copy log files from the server's log folder to declare the logs written by the test cases. We are using docker cp to copy log files. However, it also contains logs of old test cases. So I was thinking if I could delete the log file before executing the test case. Make sure that the logs I'm copying are only written by test cases. Is there any other way?

sudhir sharma:

You can delete files from programs running on the host using the following command

docker exec <container> rm -rf <YourFile>

However, if there are old files because the container was never deleted, it is common practice to delete the container after all test suite executions are complete,

New jobs should create new containers.

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