✨ Implement Reconcile mode for ClusterResourceSet #7497

g-gaston · 2022-11-04T16:23:21Z

What this PR does / why we need it:

Implements Reconcile mode for ClusterResourceSet's, introduced by proposal #6555

k8s-ci-robot · 2022-11-04T16:23:30Z

Hi @g-gaston. Thanks for your PR.

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jonathanmeier5

This all sounds reasonable to me. Looking forward to using this new reconciliation strategy.

My understanding of this change is that we are adding a Reconcile resolution strategy to the Cluster Resource Set CRD. The new Reconcile strategy will update existing Secret and ConfigMap objects contents when they change in the CRS.

The bulk of this PRs changes business logic changes appear to come from the ApplyClusterResourceSet function. Some of its business logic is refactored into clusterresourceset_scope.go, where hashing and other utility functions are abstracted into the ResourceReconcileScope object.

Outside of the unit tests, how did you test this implementation?

exp/addons/api/v1beta1/clusterresourcesetbinding_types_test.go

exp/addons/internal/controllers/clusterresourceset_controller.go

exp/addons/api/v1beta1/clusterresourceset_types.go

g-gaston · 2022-11-08T23:01:33Z

This all sounds reasonable to me. Looking forward to using this new reconciliation strategy.

My understanding of this change is that we are adding a Reconcile resolution strategy to the Cluster Resource Set CRD. The new Reconcile strategy will update existing Secret and ConfigMap objects contents when they change in the CRS.

The bulk of this PRs changes business logic changes appear to come from the ApplyClusterResourceSet function. Some of its business logic is refactored into clusterresourceset_scope.go, where hashing and other utility functions are abstracted into the ResourceReconcileScope object.

Outside of the unit tests, how did you test this implementation?

The tests in clusterresourceset_controller_test.go are integration tests, then run the controller connected to a real etcd and api server (using envtest). So those are a bit more robust than just unit tests, the test the reconciliation logic end to end (or almost, since there is no a real workload cluster).

I also tested this manually running some capd clusters with tilt.

sbueringer

just a few nits, didn't get to the controllers folder yet

docs/book/src/tasks/experimental-features/cluster-resource-set.md

exp/addons/api/v1beta1/clusterresourceset_types.go

exp/addons/internal/controllers/clusterresourceset_controller.go

sbueringer · 2022-11-16T14:57:25Z

/retest

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

sbueringer

Thank you for working on this!!

Overall looks good to me, although I have to say I don't have a lot of experience with the CRS code base.

Would be nice to get some reviews from the other folks interested in this feature.

exp/addons/internal/controllers/clusterresourceset_controller.go

exp/addons/internal/controllers/clusterresourceset_helpers.go

exp/addons/internal/controllers/clusterresourceset_scope.go

exp/addons/internal/controllers/clusterresourceset_scope_test.go

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

exp/addons/internal/controllers/clusterresourceset_controller.go

exp/addons/internal/controllers/clusterresourceset_helpers.go

exp/addons/api/v1beta1/clusterresourcesetbinding_types_test.go

exp/addons/internal/controllers/clusterresourceset_controller.go

exp/addons/internal/controllers/clusterresourceset_helpers.go

sbueringer · 2023-01-20T12:26:59Z

exp/addons/internal/controllers/clusterresourceset_scope.go

+	// The create call is idempotent, so if the object already exists
+	// then do not consider it to be an error.


Yup Fabrizio is right.

There are two usages of createUnstructured. l.127 and l.168. In l.168 we check for already exists in l.127 we don't.

Or is that intentional? (that we ignore already exists in ApplyOnce and we surface it in Reconcile?)

exp/addons/internal/controllers/clusterresourceset_scope.go

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Co-authored-by: Fabrizio Pandini <fabrizio.pandini@gmail.com>

sbueringer · 2023-02-03T15:08:24Z

/retest

sbueringer

Just a few nits, otherwise lgtm from my side (+ linter)

exp/addons/internal/controllers/clusterresourceset_controller_test.go

sbueringer · 2023-02-03T15:24:36Z

exp/addons/internal/controllers/clusterresourceset_controller_test.go

+		g.Expect(env.Update(ctx, testCluster)).To(Succeed())
+
+		t.Log("Updating the test config map with the missing namespace resource")
+		missingNamespace := randomNamespaceForTest(t)


As the linter is complaining about the way you're generating the name anyway. WDYT about just using something like this?

Suggested change

missingNamespace := randomNamespaceForTest(t)

missingNamespace := fmt.Sprintf("clusterresourceset-apply-once-%s", util.RandomString(6))

I can change it if you prefer but I thought it was a useful function to have.

btw fixed the linter

Fine for me to keep just seems more complicated to have our own random func here vs. using the util that we use in a lot of other places

(usually we also use a prefix for the namespace which roughly identifies the test, just makes it easier to map resources to tests when debugging envtest based tests)

Up to you

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

…t.go typo Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

sbueringer · 2023-02-14T13:03:31Z

Thank you very much!

/lgtm

/assign @fabriziopandini

k8s-ci-robot · 2023-02-14T13:03:37Z

LGTM label has been added.

Git tree hash: cd1d00bb36ba52dc2f56564cb2ba15c199e378d7

fabriziopandini

great job
/lgtm
/approve

k8s-ci-robot · 2023-02-19T10:00:33Z

[APPROVALNOTIFIER] This PR is APPROVED

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Add patch for CAPI CRS Reconcile mode aws/eks-anywhere-build-tooling#1535

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g-gaston and others added 5 commits November 28, 2022 18:51

Implement Reconcile mode for ClusterResourceSet

a6ef8dc

Update ApplyClusterResourceSet doc comment with Reconcile strategy

4e02c8f

Added strategy update instructions to docs

5f62bc7

Fix typo

b70f649

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Use ResourceCreateOrUpdate to dry naked predicates

0c5ee40

g-gaston force-pushed the crs-reconcile branch from 7232186 to 0c5ee40 Compare November 28, 2022 18:51

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g-gaston and others added 2 commits December 5, 2022 17:35

Update exp/addons/internal/controllers/clusterresourceset_controller.go

9586cb5

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Addressed review comment: minor cleanup

b0c7337

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g-gaston requested a review from fabriziopandini January 10, 2023 12:25

Implement top loevel apply methoid in resource scopes

6c656f8

g-gaston force-pushed the crs-reconcile branch from 74edeaf to 6c656f8 Compare January 10, 2023 12:28

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g-gaston and others added 4 commits January 25, 2023 16:45

Improve test case names

199fcce

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Check scope error before setting binding to improve legibility

a69ab2e

Fix typo

d7d1ffa

Co-authored-by: Fabrizio Pandini <fabrizio.pandini@gmail.com>

Improve errors in crs normalize data and scope

2891a9c

g-gaston force-pushed the crs-reconcile branch from 57c87cc to 2891a9c Compare January 25, 2023 16:42

Add tests to cover ApplyOnce reentry and idempotency

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Fix typos

aed9907

Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Fix exp/addons/internal/controllers/clusterresourceset_controller_tes…

d4635bb

…t.go typo Co-authored-by: Stefan Büringer <4662360+sbueringer@users.noreply.github.com>

Improve generate namespace function

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✨ Implement Reconcile mode for ClusterResourceSet #7497

✨ Implement Reconcile mode for ClusterResourceSet #7497

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		// The create call is idempotent, so if the object already exists
		// then do not consider it to be an error.

	missingNamespace := randomNamespaceForTest(t)
	missingNamespace := fmt.Sprintf("clusterresourceset-apply-once-%s", util.RandomString(6))

✨ Implement Reconcile mode for ClusterResourceSet #7497

✨ Implement Reconcile mode for ClusterResourceSet #7497

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