generate DRA job configs from a Jinja template #34010

bart0sh · 2024-12-19T13:34:54Z

Implemented job configs generation
added make rules to generate and verify generated jobs
generated DRA canary jobs

/cc @pohly @kannon92 @SergeyKanzhelev @haircommander

k8s-ci-robot · 2024-12-19T13:34:56Z

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

pohly · 2024-12-19T14:53:34Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation-canary.ini

+[ci-node-e2e-cgrpv1-crio-dra]
+job_type = pr
+description = Runs E2E node tests for Dynamic Resource Allocation beta features with CRI-O using cgroup v1
+cluster = k8s-infra-prow-build


Is there a reason for not using the eks-prow-build-cluster?

If not, then cluster can go to DEFAULT.

The only reason is they are used this way in the current job. I'l get rid of cluster variable and use eks-prow-build-cluster for all jobs.

BTW, there is a difference in the kind jobs:

@@ -80,20 +74,15 @@ command: - runner.sh args: - - /bin/bash + - /bin/sh - -xc - - | - set -ex - make WHAT="github.com/onsi/ginkgo/v2/ginkgo k8s.io/kubernetes/test/e2e/e2e.test" - curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" kind - kind build node-image --image=dra/node:latest . - trap 'kind export logs "${ARTIFACTS}/kind"; kind delete cluster' EXIT - # Which DRA features exist can change over time. - features=( $(grep '"DRA' pkg/features/kube_features.go | sed 's/.*"$.*$"/\1/') ) - echo "Enabling DRA feature(s): ${features[*]}." - # Those additional features are not in kind.yaml, but they can be added at the end. - kind create cluster --retain --config <(cat test/e2e/dra/kind.yaml; for feature in ${features}; do echo " ${feature}: true"; done) --image dra/node:latest - KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=1h hack/ginkgo-e2e.sh -ginkgo.label-filter="Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Alpha, Beta, DynamicResourceAllocation$(for feature in ${features}; do echo , ${feature}; done)} && !Flaky && !Slow" + - > + make WHAT="github.com/onsi/ginkgo/v2/ginkgo k8s.io/kubernetes/test/e2e/e2e.test" && + curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" kind && + kind build node-image --image=dra/node:latest . && + trap 'kind export logs "${ARTIFACTS}/kind"; kind delete cluster' EXIT && + kind create cluster --retain --config test/e2e/dra/kind.yaml --image dra/node:latest && + KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=2h30m hack/ginkgo-e2e.sh -ginkgo.label-filter='Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Beta, DynamicResourceAllocation } && !Flaky'

Is it possible to use the same arguments for both? If so, which one?

I unified that in #33993 with an if check:

test-infra/config/jobs/kubernetes/sig-node/dynamic-resource-allocation-canary.yaml

Lines 93 to 103 in 3942639

if ${with_all_features:-false}; then

# Which DRA features exist can change over time.

features=( $(grep '"DRA' pkg/features/kube_features.go | sed 's/.*"$.*$"/\1/') )

echo "Enabling DRA feature(s): ${features[*]}."

# Those additional features are not in kind.yaml, but they can be added at the end.

kind create cluster --retain --config <(cat test/e2e/dra/kind.yaml; for feature in ${features}; do echo " ${feature}: true"; done) --image dra/node:latest

KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=1h hack/ginkgo-e2e.sh -ginkgo.label-filter="Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Alpha, Beta, DynamicResourceAllocation$(for feature in ${features}; do echo , ${feature}; done)} && !Flaky && !Slow"

else

kind create cluster --retain --config test/e2e/dra/kind.yaml --image dra/node:latest

KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=2h30m hack/ginkgo-e2e.sh -ginkgo.label-filter='Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Beta, DynamicResourceAllocation } && !Flaky'

fi

Thanks, applied. PTAL.

pohly · 2024-12-19T15:00:27Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation-canary.ini

+# on a kind cluster with containerd updated to a version with CDI support.
+#
+# Compared to ci-kind-dra, this one enables all DRA-related features.
+[ci-kind-dra-all]


Can we make it so that we have common settings for normal periodics, normal presubmits, and canary presubmits?

There's still going to be a lot of duplication if we have to have three copies of this section and the ones below.

The same applies to the actual .jinja template. The entries in the periodics and presubmits should be built from a single source.

Thank you. This makes sense. Will do.

Updated. Now gen.py generates 3 files: dynamic-resource-allocation-canary.yaml, dynamic-resource-allocation-pull.yaml and dynamic-resource-allocation-ci.yaml from dynamic-resource-allocation.conf and dynamic-resource-allocation.jinja

PTAL.

pohly

Looks very promising.

How to solve indention was my biggest concern when thinking about how to use Jinja. I am not sure whether this is addressed here (need to check test results).

pohly · 2024-12-20T19:23:05Z

config/jobs/kubernetes/sig-node/Makefile

+# limitations under the License.
+
+.PHONY: generate
+generate-jobs:


Doesn't match.

pohly · 2024-12-20T19:26:38Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation.conf

+job_type = node
+description = Runs E2E node tests for Dynamic Resource Allocation beta features with CRI-O using cgroup v1
+testgrid_dashboards = sig-node-cri-o, sig-node-dynamic-resource-allocation
+skip_report = false


Is there any job with skip_report = true? I don't think this needs to be configurable.

$ git grep -B5 'skip_report: true' sig-node-presubmit.yaml- - name: pull-kubernetes-e2e-inplace-pod-resize-containerd-main-v2 sig-node-presubmit.yaml- cluster: k8s-infra-prow-build sig-node-presubmit.yaml- optional: true sig-node-presubmit.yaml- always_run: false sig-node-presubmit.yaml- run_if_changed: 'test/e2e/node/pod_resize.go|pkg/kubelet/kubelet.go|pkg/kubelet/kubelet_pods.go|pkg/kubelet/kuberuntime/kuberuntime_manager.go' sig-node-presubmit.yaml: skip_report: true

I meant, "for our jobs". We should only make those things configurable which we need to be configurable - it'll be shorter and more readable.

pohly · 2024-12-20T19:26:53Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation.conf

+testgrid_dashboards = sig-node-cri-o, sig-node-dynamic-resource-allocation
+skip_report = false
+image_config_file = /home/prow/go/src/k8s.io/test-infra/jobs/e2e_node/crio/latest/image-config-cgroupv1-serial.yaml
+inject_ssh_public_key = true


Same here: this can depend on the job type in the template.

I don't think it can. not all presubmit jobs have this. It depends on a distro/image as far as I remember.

pohly · 2024-12-20T19:29:55Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation.jinja

+{%- if "containerd" in job_name %}
+{%- set testgrid_dashboards = testgrid_dashboards + ", sig-node-containerd" %}
+{%- endif %}
+  - name: {{job_name}}


So indention is the same for both periodic and presubmits?

The test bot seems to be stuck, but I suspect that a YAML linter would complain about that.

yep, fortunately the indentation is the same for presubmits and periodics:

presubmits: kubernetes/kubernetes: - name: pull-kubernetes-e2e-containerd-gce

periodics: # This jobs runs e2e.test with a focus on tests for the Dynamic Resource Allocation feature (currently beta) # on a kind cluster with containerd updated to a version with CDI support. - name: ci-kind-dra

No, if the lists were indented in the canonical way, it would be:

periodics: - name: ci-kind-dra

YAML doesn't care, but there are stylecheckers which might.

Let's see what https://prow.k8s.io/view/gs/kubernetes-ci-logs/pr-logs/pull/test-infra/34010/pull-test-infra-verify-lint/1870231711418159104 says.

Well, I took that snipped from the existing yaml.
And CI doesn't complain about wrong indentation for this file.

Right. It runs yamllint, but that doesn't care, so we are good.

As a last resort we can reindent in gen.py if it's really needed. It will be a little bit ugly though.
I suspect/hope that periodic and presubmit configs have the same indentation level in purpose.

From a YAML perspective, the nesting level is different.

I don't remember anymore where, but there are other jobs where the indention is different, which is very annoying when copy-pasting from presubmit to periodic or vice-versa. That made me think that it's enforced. It's not, so it indeed makes much more sense to use the same indention even if it's not "quite right" for periodics.

pohly · 2024-12-20T19:30:30Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation.jinja

+      testgrid-tab-name: {{job_name}}
+      description: {{description}}
+      testgrid-alert-email: {{testgrid_alert_email}}
+      fork-per-release: "true"


Canaries shouldn't get forked.

pohly · 2024-12-20T19:34:17Z

config/jobs/kubernetes/sig-node/dynamic-resource-allocation.jinja

@@ -0,0 +1,115 @@
+{%- if beginning %}


Can this file be moved into a templates directory, as in kops?

When I look at the PR sidebar, I currently see four files with the identical dynamic-resource-allocation... as name. Even if we shorten that to dra-, keeping the source file separate would make it stand out more.

Sure, it can be moved. Should I move .conf file as well?

Personally, I'd prefer flat structure with shorter names, e.g.
dra.conf
dra.jinja
dra-canary.yaml
dra-pull.yaml
dra-ci.yaml

And I hope that this approach can be used for all sig-node jobs and the final list of files will be something like this:
jobs.conf
jobs.jinja
jobs-canary.yaml
jobs-pull.yaml
jobs-ci.yaml

bart0sh · 2024-12-20T21:27:36Z

@pohly @kannon92 @SergeyKanzhelev @haircommander

Looks very promising.

Thank you. After fixing review comments, I'm going to remove -pull and -ci yamls from this PR, so we can only test -canary.
It would be great if SIG-Node folks would look at this and confirm that this approach is at least acceptable.

I personally like it. Using it would allow us to

have presubmit job for every periodic
keep them synchronized
easily generate canary jobs for testing purposes (e.g. kubetest2)
make less mistakes as job configs are automatically generated
do less typing and copypasting :)
etc.

WDYT guys?

bart0sh · 2025-01-02T10:03:03Z

/retest

bart0sh · 2025-01-02T10:16:05Z

@pohly @haircommander @kannon92 This PR is ready for review now.
It generates only DRA canary jobs and shouldn't break any existing jobs.
The idea is to enable generation of the pull and ci jobs in a separate PRs.

pohly · 2025-01-03T16:48:15Z

This PR is ready for review now.
It generates only DRA canary jobs and shouldn't break any existing jobs.

Can we make this PR complete (= generates everything) and then merge the generated canary jobs in advance via a second PR?

The advantage of this approach is:

we test the new generated jobs via the canaries without breaking anyone
we can merge this PR without any changes once we have that assurance

bart0sh · 2025-01-03T19:16:57Z

@pohly I was going to do it in 3 steps:

this PR doesn't break anyone and we can test canary jobs
enabling pull jobs as a separate PR to double check that we don't break existing pull and ci jobs
enabling ci jobs as a separate PR as a last step

Would it work for you this way?

pohly · 2025-01-03T19:41:19Z

I think two PRs as I had proposed is simpler.

I'm not worried about breaking CI jobs: that has less impact than breaking a presubmit because only a few people will see the breakage.

bart0sh · 2025-01-04T12:02:28Z

@pohly

Can we make this PR complete (= generates everything) and then merge the generated canary jobs in advance via a second PR?

done: #34070

bart0sh · 2025-01-04T12:08:55Z

@pohly BTW, current implementation makes canary job changes a bit awkward. We'll have to either complicate template with {%- if kind == "canary" %} blocks or create PRs without changes in the template and the config, as I did in #34070.

Does this make sense to you?

pohly · 2025-01-04T13:48:52Z

There's a genuine unit test failure:

hack/generate-jobs.py:79:0: W0311: Bad indentation. Found 25 spaces, expected 24 (bad-indentation)

pohly · 2025-01-04T13:52:49Z

BTW, current implementation makes canary job changes a bit awkward. We'll have to either complicate template with {%- if kind == "canary" %} blocks or create PRs without changes in the template and the config

If someone modifies the template locally and then submits only the updated canary YAML, it is impossible for others to review or replicate how they where generated. It may also be harder to verify that the changes for the canary jobs then get applied as tested to the actual jobs.

I think I prefer the approach with {%- if kind == "canary" %}. Moving experimental changes from the canary jobs to the production jobs then should consists only of removing those if checks and the else branch.

@elieser1101 can be our first ~~guinea pig~~ user of this approach for producing canary jobs which use kubetest2.

pohly · 2025-01-04T16:56:46Z

config/jobs/kubernetes/sig-node/dra-ci.yaml

    spec:
      containers:
-      - image: gcr.io/k8s-staging-test-infra/kubekins-e2e:v20241230-3006692a6f-master
+      - image: gcr.io/k8s-staging-test-infra/kubekins-e2e:v20241218-d4b51bc3e8-master


Let's use the same image as on master.

pohly · 2025-01-04T16:58:01Z

config/jobs/kubernetes/sig-node/dra-ci.yaml

-    - org: kubernetes
-      repo: kubernetes
-      base_ref: master
-      path_alias: k8s.io/kubernetes


These extra_refs are missing in the new generated CI jobs.

pohly · 2025-01-04T16:58:32Z

config/jobs/kubernetes/sig-node/dra-ci.yaml

          make WHAT="github.com/onsi/ginkgo/v2/ginkgo k8s.io/kubernetes/test/e2e/e2e.test"
          curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" kind
          kind build node-image --image=dra/node:latest .
          trap 'kind export logs "${ARTIFACTS}/kind"; kind delete cluster' EXIT
-          # Which DRA features exist can change over time.


Can we keep the comments?

pohly · 2025-01-04T16:58:50Z

config/jobs/kubernetes/sig-node/dra-ci.yaml

          make WHAT="github.com/onsi/ginkgo/v2/ginkgo k8s.io/kubernetes/test/e2e/e2e.test"
          curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" kind
          kind build node-image --image=dra/node:latest .
          trap 'kind export logs "${ARTIFACTS}/kind"; kind delete cluster' EXIT
-          # Which DRA features exist can change over time.
-          features=( $(grep '"DRA' pkg/features/kube_features.go | sed 's/.*"\(.*\)"/\1/') )
-          echo "Enabling DRA feature(s): ${features[*]}."


And the debug output?

pohly · 2025-01-04T17:01:51Z

config/jobs/kubernetes/sig-node/dra.jinja

@@ -0,0 +1,120 @@
+{%- if header %}{%- if kind == "ci" %}periodics:{%- else %}presubmits:


Can this {%- if header %} be dropped?

pohly · 2025-01-04T17:03:07Z

config/jobs/kubernetes/sig-node/dra.jinja

+      {%- endif %}
+      {%- if job_type == "node" %}


Suggested change

{%- endif %}

{%- if job_type == "node" %}

Redundant if check?

pohly · 2025-01-04T17:06:49Z

config/jobs/kubernetes/sig-node/dra.jinja

+          curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" kind
+          kind build node-image --image=dra/node:latest .
+          trap 'kind export logs "${ARTIFACTS}/kind"; kind delete cluster' EXIT
+          {%- if kind == "canary" %}


Why does this check "canary"?

This seems to overload the meaning of "canary":

For canary PR jobs (= dra-canary.yaml).

The "all features enabled" CI and presubmit jobs.

Let's use "canary" for "part of dra-canary.yaml" and something else for feature gates. How about "alpha"?

pohly · 2025-01-04T17:09:02Z

hack/make-rules/verify/generated-jobs.sh

+
+echo "Verifying generated jobs"
+hack/run-in-python-container.sh \
+    python3 hack/generate-jobs.py config/jobs/kubernetes/sig-node/*.conf --only-verify


We can start with only working on "our" (= SIG Node) jobs here for now. But in a future PR this should get extended to other generated jobs.

k8s-ci-robot requested review from haircommander, kannon92, pohly and SergeyKanzhelev December 19, 2024 13:34

bart0sh force-pushed the PR060-generate-job-configs branch from 7c3a83c to 2f75bbd Compare December 19, 2024 13:37

bart0sh mentioned this pull request Dec 19, 2024

DRA: add canary jobs and sync mechanism #33993

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add dra-canary jobs #34070

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dra --label-filter matches nonkubetes2 jobs #34068

Open

bart0sh added 4 commits January 4, 2025 16:54

hack: implement job config generator

5690640

sig-node: generate DRA jobs

1acf908

Makefile: generate DRA jobs

18cb775

Makefile: verify generated jobs

1da3e45

bart0sh force-pushed the PR060-generate-job-configs branch from 2ed5a55 to 1da3e45 Compare January 4, 2025 14:54

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	if ${with_all_features:-false}; then
	# Which DRA features exist can change over time.
	features=( $(grep '"DRA' pkg/features/kube_features.go \| sed 's/."\(.\)"/\1/') )
	echo "Enabling DRA feature(s): ${features[*]}."
	# Those additional features are not in kind.yaml, but they can be added at the end.
	kind create cluster --retain --config <(cat test/e2e/dra/kind.yaml; for feature in ${features}; do echo " ${feature}: true"; done) --image dra/node:latest
	KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=1h hack/ginkgo-e2e.sh -ginkgo.label-filter="Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Alpha, Beta, DynamicResourceAllocation$(for feature in ${features}; do echo , ${feature}; done)} && !Flaky && !Slow"
	else
	kind create cluster --retain --config test/e2e/dra/kind.yaml --image dra/node:latest
	KUBERNETES_PROVIDER=local KUBECONFIG=${HOME}/.kube/config GINKGO_PARALLEL_NODES=8 E2E_REPORT_DIR=${ARTIFACTS} GINKGO_TIMEOUT=2h30m hack/ginkgo-e2e.sh -ginkgo.label-filter='Feature: containsAny DynamicResourceAllocation && Feature: isSubsetOf { Beta, DynamicResourceAllocation } && !Flaky'
	fi

		@@ -0,0 +1,120 @@
		{%- if header %}{%- if kind == "ci" %}periodics:{%- else %}presubmits:

generate DRA job configs from a Jinja template #34010

Are you sure you want to change the base?

generate DRA job configs from a Jinja template #34010

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