Chef Ideas

We believe that the best way to build software is to do it in close collaboration with the people who use it. We invite you to submit your ideas using the form below. Please be sure to include the problem for which you are solving and the benefits of implementing the idea.

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Allow the Habitat Supervisor to Clean Up Unused/Unneeded Dependencies During Upgrade

I understand leaving old versions, and their dependencies, behind with `install` of packages. Even the same package of a different version. If someone installs multiple versions, they may want to run multiple versions and/or swap between them.

 

However, if someone is just tracking the `stable` channel of a builder and automatically downloading updates to those packages, and their dependencies, whenever a new one becomes available, this behavior doesn't make sense. And, with leftover/unused packages, and their rather large dependencies, the /hab folder can grow in size quite significantly over a short period of time, and without limit, if iterations are made frequently and versions of dependencies are not strongly pinned. This can have a detrimental, or catastrophic, effect on server performance - especially if this leads to completely filling a drive.

 

I would like to see additional functionality, maybe a new pkg verb, of "upgrade", or similar, that would download the new version of the package and prune the old version and unneeded dependencies. Maybe even a meta verb that did an install of the new version, stopped the old service, starts the new service, and uninstalls the old version. If you're just tracking a channel on a builder, this should probably be the default (if not able to be specified) behavior.

 

  • Guest
  • Feb 13 2020
  • New - awaiting review
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