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Set vttablet init container resource limits #216

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@brandt brandt commented Jul 29, 2021

Sets the resource requirements on each of the default vttablet init containers to the same values as the vttablet container itself in case cluster quota requirements mandate they be set. Given the same values, it shouldn't impact scheduling.

fixes #212

Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
@deepthi deepthi requested a review from dctrwatson July 29, 2021 21:19
@deepthi deepthi merged commit be42288 into planetscale:main Sep 14, 2021
@brandt brandt deleted the vttablet-init-container-resource-limits branch September 15, 2021 04:28
nickvanw added a commit that referenced this pull request Jan 31, 2022
deepthi pushed a commit that referenced this pull request Jan 31, 2022
brandt added a commit to brandt/vitess-operator that referenced this pull request Mar 6, 2022
Sets the resource requirements on each of the default vttablet init containers to the same request and limit values as the vttablet container itself.

This fixes the issue reported in planetscale#212 where pods would fail to be created on clusters with strict quota requirements because no limit was set on the init containers.

## History

This is a reimplementation of planetscale#216 with the change that it no longer sets a default resource _limit_.

This fixes the issue reported in planetscale#240 and discussed in planetscale#244 where the vttablet pod would fail to be created when the user sets a request larger than the default limit without also setting a larger limit. The user's nil limit would not override the default value because `update.ResourceRequirements(dst, src)` won't update `dst` with a nil `src` ([for good reasons](https://github.com/planetscale/vitess-operator/blob/da7efd4c945193864f5996cb793055449c4de97a/pkg/operator/update/podspec.go#L201-L203)).

With this change, users can once again increase the request by itself. If a cluster requires a limit, the user will already need to have set it on for vttablet so we can use the same value to override the init containers' default nil limit.

fixes planetscale#212
fixes planetscale#240

Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
GuptaManan100 pushed a commit that referenced this pull request Feb 2, 2023
Sets the resource requirements on each of the default vttablet init containers to the same request and limit values as the vttablet container itself.

This fixes the issue reported in #212 where pods would fail to be created on clusters with strict quota requirements because no limit was set on the init containers.

## History

This is a reimplementation of #216 with the change that it no longer sets a default resource _limit_.

This fixes the issue reported in #240 and discussed in #244 where the vttablet pod would fail to be created when the user sets a request larger than the default limit without also setting a larger limit. The user's nil limit would not override the default value because `update.ResourceRequirements(dst, src)` won't update `dst` with a nil `src` ([for good reasons](https://github.com/planetscale/vitess-operator/blob/da7efd4c945193864f5996cb793055449c4de97a/pkg/operator/update/podspec.go#L201-L203)).

With this change, users can once again increase the request by itself. If a cluster requires a limit, the user will already need to have set it on for vttablet so we can use the same value to override the init containers' default nil limit.

fixes #212
fixes #240

Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
GuptaManan100 added a commit that referenced this pull request Feb 2, 2023
* Set vttablet init container resource requests and limits

Sets the resource requirements on each of the default vttablet init containers to the same request and limit values as the vttablet container itself.

This fixes the issue reported in #212 where pods would fail to be created on clusters with strict quota requirements because no limit was set on the init containers.

## History

This is a reimplementation of #216 with the change that it no longer sets a default resource _limit_.

This fixes the issue reported in #240 and discussed in #244 where the vttablet pod would fail to be created when the user sets a request larger than the default limit without also setting a larger limit. The user's nil limit would not override the default value because `update.ResourceRequirements(dst, src)` won't update `dst` with a nil `src` ([for good reasons](https://github.com/planetscale/vitess-operator/blob/da7efd4c945193864f5996cb793055449c4de97a/pkg/operator/update/podspec.go#L201-L203)).

With this change, users can once again increase the request by itself. If a cluster requires a limit, the user will already need to have set it on for vttablet so we can use the same value to override the init containers' default nil limit.

fixes #212
fixes #240

Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>

* refactor: move defaults to the correct location

Signed-off-by: Manan Gupta <manan@planetscale.com>

---------

Signed-off-by: J. Brandt Buckley <brandt@runlevel1.com>
Signed-off-by: Manan Gupta <manan@planetscale.com>
Co-authored-by: J. Brandt Buckley <brandt@runlevel1.com>
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Ability to define resources for init containers
3 participants