Update cpu and memory limit for devworkspace-controller

[dkwon17]

What does this PR do?

This PR updates the CPU and memory limit of the devworkspace-controller container of the devworkspace-controller-manager-* pod from 1000m to 3000m and 1Gi to 3Gi respectively.

What issues does this PR fix or reference?

Part of https://issues.redhat.com/browse/CRW-6889
Fix #1299

Is it tested? How?

To test, run:

DWO_IMG_REPO=quay.io/<username>/<repo>
DWO_IMG_TAG=<tag>
export DWO_BUNDLE_IMG=${DWO_IMG_REPO}/devworkspace-operator-bundle:${DWO_IMG_TAG}
export DWO_INDEX_IMG=${DWO_IMG_REPO}/devworkspace-operator-index:${DWO_IMG_TAG}
export DOCKER=podman 
make generate_olm_bundle_yaml build_bundle_and_index register_catalogsource

And install the operator from OperatorHub.

Verify that the resulting devworkspace-controller-manager-* pod in the openshift-operators namespace has the new CPU and memory limit for the devworkspace-controller container.

PR Checklist

• E2E tests pass (when PR is ready, comment /test v8-devworkspace-operator-e2e, v8-che-happy-path to trigger)
  • v8-devworkspace-operator-e2e: DevWorkspace e2e test
  • v8-che-happy-path: Happy path for verification integration with Che

[AObuchow]

LGTM & works as expected. Tested on OpenShift 4.16 using OLM.

spec:
(...)
  containers:
    - resources:
        limits:
          cpu: '3'
          memory: 3Gi
        requests:
          cpu: 250m
          memory: 100Mi

Note: 0.1 'CPU' = 100m, so 0.1 CPU X 30 = 3 CPU = 3000m

I wanted to try upgrading from DWO 0.29 -> 0.30-dev (using this PR) but there isn't an OLM upgrade path created until the upstream release procedure is done unfortunately.

@dkwon17 let me quickly create an issue for this PR so that we can track it more easily in the DWO 0.30 milestone

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AObuchow, dkwon17

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [AObuchow,dkwon17]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[AObuchow]

@dkwon17 I've opened #1299 -- this PR is now good to merge :) Great work as always.

[dkwon17]

Thank you @AObuchow , merging