Tekton Pipeline release v0.28.0 "Siberian Hadaly"

[vdemeester]

🎉 Metrics options, better LimitRange support, marking Pod as Terminating and implicit parameters 🎉

-Docs @ v0.28.0
-Examples @ v0.28.0

Installation one-liner

kubectl apply -f https://storage.googleapis.com/tekton-releases/pipeline/previous/v0.28.0/release.yaml

Changes

Features

• ✨ Support activeDeadlineSeconds for Tekton pods 🦌 (Support activeDeadlineSeconds for Tekton pods 🦌 #4217)

Set activeDeadlineSeconds on Tekton's Pod so that they are considered Terminating for Kubernetes.
This helps supporting ResourceQuota a bit better as now Tekton Pipeline's pod are considered terminating and thus can be using a specific scoped ResourceQuota for those.

• ✨ Allow in param/result names via subscript. (Allow . in param/result names via subscript. #4215)

Parameter and result names may now contain . and be referenced via the subscript operator (e.g. $(params["foo.bar"])

• ✨ Add Configuration for Metrics Cardinality Simplification (Add Configuration for Metrics Cardinality Simplification #4201)

Metrics tags/labels type on taskrun/pipelinerun and task/pipeline can be eliminated metrics using configmap. Also, the type of metrics for duration - histogram or gauge/last value, can also be configured.

• ✨ Attempt to lookup cached entrypoint by digest, if possible (Attempt to lookup cached entrypoint by digest, if possible #4188)

Attempt to avoid incurring a rate limited image pull to lookup cached image entrypoints, if we can avoid it.

• ✨ Revamp how pipeline supports Limitranges (Revamp how pipeline supports Limitranges #4176)

Support fully LimitRange by taking into account the Min, Max, Default and DefaultRequest fields as well as the MaxLimitRequestRatio) to define the coherent Requests and Limits on the Pod.

• ✨ Add Cancelled Pipelinerun metrics (Add Cancelled Pipelinerun metrics #4144)

Add Cancelled Pipelinerun metrics

• ✨ Add script mode support to windows tasks (Add script mode support to windows tasks #4128)

Add script mode support for windows Tasks/Pipelines

• ✨ Implement implicit parameter resolution. (Implement implicit parameter resolution. #4127)

  • Tasks can now accept more parameters than are actually used.
  • Parameters can now be implicitly propagated to inlined specs (alpha feature flag must be enabled) -
    e.g. an inlined Task can access parameters of its parent PipelineRun without
    needing to explicitly define each param.

Backwards incompatible changes

In current release:

• 🚨 The default value for the new Step onError alpha feature has changed its name from fail to stopAndFail. #4151. Note: this only affects user of v0.27.0 as this behavior change was backported into v0.27.1.

• 🐛 Patch vendor/ apimachinery to work on 1.22 (Patch vendor/ apimachinery to work on 1.22 #4164)

Backport adding Subresource field to ManagedField entries in our vendor/ folder to make tektoncd/pipeline work on k8s 1.22

• 🐛 Propagate Pipeline name label to PipelineRun (Propagate Pipeline name label to PipelineRun #4163)

pipeline name label is propagated to pipelinerun, even when the pipelinerun is pending or cancelled

• 🐛 Set the scripts dir to readonly after init (Set the scripts dir to readonly after init #4161)

Mount script workspace as readonly

• 🐛 Fix Concurrency issue in the metrics (Fix Concurrency issue in the metrics #4222)
• 🐛 Un-randomize TestConvertScripts_WithBreakpoint_OnFailure (Un-randomize TestConvertScripts_WithBreakpoint_OnFailure #4197)
• 🐛 Configure user.name in git_test.go run method. (Configure user.name in git_test.go run method. #4192)
• 🐛 Don't modify the lister cache's copy. (Don't modify the lister cache's copy. #4180)
• 🐛 Switch from -Z to -w (Switch from -Z to -w #4178)

Misc

• 🔨 Remove the pkg/jsonpath library. (Remove the pkg/jsonpath library. #4208)

The package pkg/jsonpath has been removed. This does not effect anyone using tektoncd/pipeline directly, but may break users importing this code as a library during an update. We're unaware of any usage of this package right now.

• 🔨 Converts ResultType from string to int enum (Converts ResultType from string to int enum #4186)

• 🔨 cleaning up label keys 🧹 (cleaning up label keys 🧹 #4154)

The constants defined for the Tekton specific labels now include GroupName(tekton.dev) in the definition, for example:

Before this change:
const TaskLabelKey = "/task"

After this change:
const TaskLabelKey = GroupName + "/task"

If you are importing these constants in your application from the pipeline source, you don't need to add GroupName anymore.

• 🔨 (cleanup) use skipping reason instead of existence of variables ((cleanup) use skipping reason instead of existence of variables #4147)

• 🔨 Poll for the status of Runs (Poll for the status of Runs #4213)

• 🔨 Add controller flag to turn off built-in resolution (Add controller flag to turn off built-in resolution #4168)

Introduce experimental flag to disable built-in resolution behaviour of the taskrun and pipelinerun reconcilers.

• 🔨 Add metadata to our publish task for Tekton Chains to observe & sign (Add metadata to our publish task for Tekton Chains to observe & sign #4156)

Tekton Pipelines releases are now signed by Tekton Chains.

• 🔨 Use an Informer to list LimitRanges 🥼 (Use an Informer to list LimitRanges 🥼 #4234)
• 🔨 Remove unnecessary replace directives in go.mod (Remove unnecessary replace directives in go.mod #4229)
• 🔨 Skipping the CI secret sauce 🦕 (Skipping the CI secret sauce 🦕 #4221)
• 🔨 Bump github.com/cloudevents/sdk-go to v2.5.0 (Bump github.com/cloudevents/sdk-go to v2.5.0 #4216)
• 🔨 Switch the linter from golint to revive, and fix warnings. (Switch the linter from golint to revive, and fix warnings. #4212)
• 🔨 Make NewRecorder a proper singleton (Make NewRecorder a proper singleton #4210)
• 🔨 Don't rely on condition ordering. (Don't rely on condition ordering. #4209)
• 🔨 Remove the gosec Makefile target. (Remove the gosec Makefile target. #4207)
• 🔨 Bump golangci-lint to v1.42.0 from v1.30.0. (Bump golangci-lint to v1.42.0 from v1.30.0. #4206)
• 🔨 Bump the go-scm, docker/cli and docker/docker libraries. (Bump the go-scm, docker/cli and docker/docker libraries. #4205)
• 🔨 Adjust the way {pipeline,task}run metrics are surfaced. (Adjust the way {pipeline,task}run metrics are surfaced. #4204)
• 🔨 Bump the version of K8s clients and knative/pkg (Bump the version of K8s clients and knative/pkg #4198)
• 🔨 Improve the logging in pkg/git testing (Improve the logging in pkg/git testing #4191)
• 🔨 Deduplicate timeout constants. (Deduplicate timeout constants. #4189)
• 🔨 Add CE Client to dynamic injection (Add CE Client to dynamic injection #4183)
• 🔨 Adjust several log lines (Adjust several log lines #4182)
• 🔨 Fix a small copy/pasta typo (Fix a small copy/pasta typo #4181)
• 🔨 pkg/entrypoint: clean after running tests (pkg/entrypoint: clean after running tests #4175)
• 🔨 Remove confusing comment (◎_◎ (Remove confusing comment (◎_◎;) #4171)
• 🔨 Update to latest knative.dev/pkg (Update to latest knative.dev/pkg #4170)
• 🔨 Replace snooze with NewRequeueKey (Replace snooze with NewRequeueKey #4131)

Docs

• 📖 Document Pipeline's use of Pod termination messages (Document Pipeline's use of Pod termination messages #4226)

Our developer docs now include more details on how Tekton Pipelines uses Pod termination messages to communicate information between Task pods and the Tekton Pipelines controller.

• 📖 Add docs and examples for Windows (Add docs and examples for Windows #4138)
• 📖 Docs for Metrics Configuration (Docs for Metrics Configuration #4218)
• 📖 Add doc links for 0.27.2 and 0.27.3 (Add doc links for 0.27.2 and 0.27.3 #4203)
• 📖 Update readme with release 0.27.1 links (Update readme with release 0.27.1 links #4162)
• 📖 Update docs with 0.27.0 info (Update docs with 0.27.0 info #4152)

Thanks

Thanks to these contributors who contributed to v0.28.0!

• ❤️ @06kellyjac
• ❤️ @DrWadsy
• ❤️ @aiden-deloryn
• ❤️ @bobcatfish
• ❤️ @dlorenc
• ❤️ @imjasonh
• ❤️ @jerop
• ❤️ @khrm
• ❤️ @mattmoor
• ❤️ @pritidesai
• ❤️ @sbwsg
• ❤️ @sm43
• ❤️ @vdemeester
• ❤️ @wlynch

Extra shout-out for awesome release notes:

• 😍 @06kellyjac
• 😍 @DrWadsy
• 😍 @aiden-deloryn
• 😍 @bobcatfish
• 😍 @dlorenc
• 😍 @imjasonh
• 😍 @jerop
• 😍 @khrm
• 😍 @mattmoor
• 😍 @pritidesai
• 😍 @sbwsg
• 😍 @sm43
• 😍 @vdemeester
• 😍 @wlynch

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This discussion was created from the release Tekton Pipeline release v0.28.0 "Siberian Hadaly".