How to attach Tmpfs Mount to Docker Container?
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Note: To attach multiple (tmpfs mount) to container use --tmpfs/--mount flag more than once
A tmpfs mount is temporary and only persisted in the host memory. When the container stops, the tmpfs mount is removed, and files are written there won’t be persisted.
Limitation:
Sharing with 1 or more Containers: not allowed
This functionality is only available if you’re running Docker on Linux
Commands:
$ docker run -d \
-it \
--name tmptest \
--mount type=tmpfs,destination=/app \
nginx:latest
$ docker run -d \
-it \
--name tmptest \
--tmpfs /app \
nginx:latest
$ docker container inspect tmptest
Reference: https://docs.docker.com/storage/tmpfs/
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