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Drop support for Kubernetes < 1.17 #5272

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merged 1 commit into from
Jan 24, 2022
Merged

Drop support for Kubernetes < 1.17 #5272

merged 1 commit into from
Jan 24, 2022

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rfranzke
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How to categorize this PR?

/area open-source dev-productivity
/kind cleanup

What this PR does / why we need it:
Similar to #3862, this PR drops all code related to Kubernetes versions < 1.17, i.e. effectively for 1.15 and 1.16. Since these versions they are quite old and also no longer maintained by the Kubernetes community, it doesn't make sense to carry to code along any longer.

This means that the minimum Kubernetes version for garden clusters is also raised to 1.17 (from 1.16).

Release note:

⚠️ Gardener does no longer support shoot clusters with Kubernetes versions < 1.17. Make sure to upgrade all existing clusters before upgrading to this Gardener version.

⚠️ The minimum Kubernetes version for garden clusters has been raised from `v1.16` to `v1.17`. Make sure that your garden cluster meets this requirement before upgrading to this Gardener version.

@rfranzke rfranzke requested review from a team as code owners January 14, 2022 10:00
@gardener-robot gardener-robot added area/dev-productivity Developer productivity related (how to improve development) area/open-source Open Source (community, enablement, contributions, conferences, CNCF, etc.) related kind/cleanup Something that is not needed anymore and can be cleaned up needs/review size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. labels Jan 14, 2022
This was referenced Jan 14, 2022
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@rfranzke You need rebase this pull request with latest master branch. Please check.

@rfranzke
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Rebase done

@timebertt timebertt self-assigned this Jan 19, 2022
timebertt
timebertt approved these changes Jan 19, 2022
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Nice PR, thank you! So much code and so many special cases we can get rid of now 🚀
/lgtm

@rfranzke rfranzke merged commit 7331b35 into gardener:master Jan 24, 2022
@rfranzke rfranzke deleted the cleanup/k8s-115-116 branch January 24, 2022 20:22
krgostev pushed a commit to krgostev/gardener that referenced this pull request Apr 21, 2022
@rfranzke
Drop support for Kubernetes < 1.17 (gardener#5272)
d8cad02
krgostev pushed a commit to krgostev/gardener that referenced this pull request Jul 5, 2022
@rfranzke
Drop support for Kubernetes < 1.17 (gardener#5272)
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@ialidzhikov ialidzhikov mentioned this pull request Aug 25, 2022
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@timebertt timebertt timebertt approved these changes

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area/dev-productivity Developer productivity related (how to improve development) area/open-source Open Source (community, enablement, contributions, conferences, CNCF, etc.) related kind/cleanup Something that is not needed anymore and can be cleaned up size/XL Denotes a PR that changes 500-999 lines, ignoring generated files.
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@rfranzke @gardener-robot @timebertt @timuthy @gardener-robot-ci-2 @gardener-robot-ci-3