Declaration for anonymous volumes appearing in docker images

[moonrailgun]

With user report, with we start docker , will create anonymous docker volumes with hash.

After check all docker which tailchat used, we found some library will use VOLUME command in Dockerfile:

• https://hub.docker.com/layers/library/redis/alpine/images/sha256-a5481d685c31d0078b319e39639cb4f5c2c9cf4ebfca1ef888f4327be9bcc5a7?context=explore
• https://hub.docker.com/layers/library/mongo/4/images/sha256-40d8a1af82bcc8472cf251c7c47e7b217379801704f99c6c6dac3a30e036f4d1?context=explore

and its will create volume mandatory.

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Usually, these anonymous volumes are often of no concern to us

If you are unhappy with redundant volumes, feel free to delete them with docker volume rm or docker volume prune(dangerous)

Reference:

• https://docs.docker.com/engine/reference/builder/#volume