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Announcements

New features

New features added to each component:

  • July 13th, 2020 Configuring job_url_prefix_config with gcs/ prefix is now deprecated. Please configure a job url prefix without the gcs/ storage provider suffix. From now on the storage provider is appended automatically so multiple storage providers can be used for builds of the same repository. For now we still handle the old configuration format, this will be removed in September 2020. To be clear handling of URLs with /view/gcs in Deck is not deprecated.
  • June 23rd, 2020 An hmac tool was added to automatically reconcile webhooks and hmac tokens for the orgs and repos integrated with your prow instance.
  • June 8th, 2020 A new informer-based Plank implementation was added. It can be used by deploying the new prow-controller-manager binary. We plan to gradually move all our controllers into that binary, see #17024
  • May 31, 2020 '--gcs-no-auth' in Deck is deprecated and not used anymore. We always fall back to an anonymous GCS client now, if all other options fail. This flag will be removed in July 2020.
  • May 25, 2020 Added --blob-storage-workers and --kubernetes-blob-storage-workers flags to crier. The flags --gcs-workers and --kubernetes-gcs-workers are now deprecated and will be removed in August 2020.
  • May 13, 2020 Added a decorate_all_jobs option to job configuration that allows to control whether jobs are decorated by default. Individual jobs can use the decorate option to override this setting.
  • March 25, 2020 Added a report_templates option to the Plank config that allows to specify different report templates for each organization or a specific repository. The report_template option is deprecated and it will be removed on September 2020 which is going to be replaced with the * value in report_templates.
  • January 03, 2020 Added a pr_status_base_urls option to the Tide config that allows to specify different tide's URL for each organization or a specific repository. The pr_status_base_url will be deprecated on June 2020 and it will be replaced with the * value in pr_status_base_urls.
  • November 05, 2019 The config-updater plugin supports update configs on build clusters by using clusters. The fields namespace and additional_namespaces are deprecated.
  • October 27, 2019 The trusted_org functionality in trigger is being deprecated in favour of being more explicit in the fact that org members or repo collaborators are the trusted users. This option will be removed completely in January 2020.
  • October 07, 2019 Added a default_decoration_configs option to the Plank config that allows to specify different plank's default configuration for each organization or a specific repository. default_decoration_config will be deprecated in April 2020 and it will be replaced with the * value in default_decoration_configs.
  • August 29, 2019 Added a batch_size_limit option to the Tide config that allows the batch size limit to be specified globally, per org, or per repo. Values default to 0 indicating no size limit. A value of -1 disables batches.
  • July 30, 2019 authorized_users in rerun_auth_config for deck will become github_users.
  • July 19, 2019 deck will soon remove its default value for --cookie-secret-file. If you set --oauth-url but not --cookie-secret-file, add --cookie-secret-file=/etc/cookie-secret to your deck instance. The default value will be removed at the end of October 2019.
  • July 2, 2019 prow defaults to report status for both presubmit and postsubmit jobs on GitHub now.
  • June 17, 2019 It is now possible to configure the channel for the Slack reporter directly on jobs via the .reporter_config.slack.channel config option
  • May 13, 2019 New plank config pod_running_timeout is added and defaulted to two days to allow plank abort pods stuck in running state.
  • April 25, 2019 --job-config in peribolos has never been used; it is deprecated and will be removed in July 2019. Remove the flag from any calls to the tool.
  • April 24, 2019 file_weight_count in blunderbuss is being deprecated in favour of the more current max_request_count functionality. Please ensure your configuration is up to date before the end of May 2019.
  • March 12, 2019 tide now records a history of its actions and exposes a filterable view of these actions at the /tide-history deck path.
  • March 9, 2019 prow components now support reading gzipped config files
  • February 13, 2019 prow (both plank and crier) can set status on the commit for postsubmit jobs on github now! Type of jobs can be reported to github is gated by a config field like 
    github_reporter:
  job_types_to_report:
  - presubmit
  - postsubmit
    now and default to report for presubmit only. *** The default will change in April to include postsubmit jobs as well *** You can also add skip_report: true to your post-submit jobs to skip reporting if you enable postsubmit reporting on.
  • January 15, 2019 approve now considers self-approval and github review state by default. Configure with require_self_approval and ignore_review_state. Temporarily revert to old defaults with use_deprecated_2018_implicit_self_approve_default_migrate_before_july_2019 and use_deprecated_2018_review_acts_as_approve_default_migrate_before_july_2019.
  • January 12, 2019 blunderbluss plugin now provides a new command, /auto-cc, that triggers automatic review requests.
  • January 7, 2019 implicit_self_approve will become require_self_approval in the second half of this year.
  • January 7, 2019 review_acts_as_approve will become ignore_review_state in the second half of this year.
  • October 10, 2018 tide now supports the -repo:foo/bar tag in queries via the excludedRepos YAML field.
  • October 3, 2018 welcome now supports a configurable message on a per-org, or per-repo basis. Please note that this includes a config schema change that will break previous deployments of this plugin.
  • August 22, 2018 spyglass is a pluggable viewing framework for artifacts produced by Prowjobs. See a demo here!
  • July 13, 2018 blunderbluss plugin will now support required_reviewers in OWNERS file to specify a person or github team to be cc'd on every PR that touches the corresponding part of the code.
  • June 25, 2018 updateconfig plugin will now support update/remove keys from a glob match.
  • June 05, 2018 blunderbuss plugin may now suggest approvers in addition to reviewers. Use exclude_approvers: true to revert to previous behavior.
  • April 10, 2018 cla plugin now supports /check-cla command to force rechecking of the CLA status.
  • February 1, 2018 updateconfig will now update any configmap on merge
  • November 14, 2017 jenkins-operator:0.58 exposes prometheus metrics.
  • November 8, 2017 horologium:0.14 prow periodic job now support cron triggers. See https://godoc.org/gopkg.in/robfig/cron.v2 for doc to the cron library we are using.

Breaking changes

Breaking changes to external APIs (labels, GitHub interactions, configuration or deployment) will be documented in this section. Prow is in a pre-release state and no claims of backwards compatibility are made for any external API. Note: versions specified in these announcements may not include bug fixes made in more recent versions so it is recommended that the most recent versions are used when updating deployments.

  • May 18, 2020 expiry field has been replaced with created_at in the HMAC secret.
  • April 24, 2020 Horologium now defaults to --dry-run=true
  • April 23, 2020 Explicitly setting --config-path is now required.
  • April 23, 2020 Update the autobump image to at least v20200422-8c8546d74 before June 2020.
  • April 23, 2020 Deleted deprecated default_decoration_config.
  • April 22, 2020 Deleted the file_weight_count blunderbuss option.
  • April 16, 2020 The docs-no-retest prow plugin has been deleted. The plugin was deprecated in January 2020.
  • April 14, 2020 GitHub reporting via plank is deprecated, set --github-workers=1 on crier before July 2020.
  • March 27, 2020 The deprecated allow_cancellations option has been removed from Plank and the Jenkins operator.
  • March 19, 2020 The rerun_auth_config config field has been deprecated in favor of the new rerun_auth_configs field which allows configuration on a global, organization or repo level. rerun_auth_config will be removed in July 2020.
  • November 21, 2019 The boskos metrics component replaced the existing prometheus metrics with a single, label-qualified metric. Metrics are now served at /metrics on port 9090. This actually happened August 5th, but is being documented now. Details: #13767
  • November 18, 2019 The mkbuild-cluster command-line utility and build-cluster format is deprecated and will be removed in May 2020. Use gencred and the kubeconfig format as an alternative.
  • November 14, 2019 The slack_reporter config field has been deprecated in favor of the new slack_reporter_configs field which allows configuration on a global, organization or repo level. slack_reporter will be removed in May 2020.
  • November 7, 2019 The plank.allow_cancellations and jenkins_operators.allow_cancellations settings are deprecated and will be removed and set to always true in March 2020.
  • October 7, 2019 Prow will drop support for the deprecated knative-builds in November 2019.
  • September 24, 2019 Sending an http GET request to the /hook endpoint now returns a 405 (Method Not Allowed) instead of a 200 (OK).
  • September 8, 2019 The deprecated job_url_prefix option has been removed from Plank.
  • May 2, 2019 All components exposing Prometheus metrics will now either push them to the Prometheus PushGateway, if configured, or serve them locally on port 9090 at /metrics, if not configured (the default).
  • April 26, 2019 blunderbuss, approve, and other plugins that read OWNERS now treat owners_dir_blacklist as a list of regular expressions matched against the entire (repository-relative) directory path of the OWNERS file rather than as a list of strings matched exactly against the basename only of the directory containing the OWNERS file.
  • April 2, 2019 hook, deck, horologium, tide, plank and sinker will no longer provide a default value for the --config-path flag. It is required to explicitly provide --config-path when upgrading to a new version of these components that were previously relying on the default --config-path=/etc/config/config.yaml.
  • March 29, 2019 Custom logos should be provided as full paths in the configuration under deck.branding.logos and will not implicitly be assumed to be under the static assets directory.
  • February 26, 2019 The job_url_prefix option from plank has been deprecated in favor of the new job_url_prefix_config option which allows configuration on a global, organization or repo level. job_url_prefix will be removed in September 2019.
  • February 13, 2019 horologium and sinker deployments will soon require --dry-run=false in production, please set this before March 15. At that time flag will default to --dry-run=true instead of --dry-run=false.
  • February 1, 2019 Now that hook and tide will no longer post "Skipped" statuses for jobs that do not need to run, it is not possible to require those statuses with branch protection. Therefore, it is necessary to run the branchprotector from at least version 510db59 before upgrading tide to that version.
  • February 1, 2019 horologium and sinker now support the --dry-run flag, so you must pass --dry-run=false to keep the previous behavior (see Feb 13 update).
  • January 31, 2019 sub no longer supports the --masterurl flag for connecting to the infrastructure cluster. Use --kubeconfig with --context for this.
  • January 31, 2019 crier no longer supports the --masterurl flag for connecting to the infrastructure cluster. Use --kubeconfig with --context for this.
  • January 27, 2019 Jobs that do not run will no longer post "Skipped" statuses.
  • January 27, 2019 Jobs that do not run always will no longer be required by branch protection as they will not always produce a status. They will continue to be required for merge by tide if they are configured as required.
  • January 27, 2019 All support for run_after_success jobs has been removed. Configuration of these jobs will continue to parse but will ignore the field.
  • January 27, 2019 hook will now correctly honor the run_always field on Gerrit presubmits. Previously, if this field was unset it would have defaulted to true; now, it will correctly default to false.
  • January 22, 2019 sinker prefers .kube/config instead of the custom Clusters file to specify credentials for external build clusters. The flag name has changed from --build-cluster to --kubeconfig. Migrate before June 2019.
  • November 29, 2018 plank will no longer default jobs with decorate: true to have automountServiceAccountToken: false in their PodSpec if unset, if the job explicitly sets serviceAccountName
  • November 26, 2018 job names must now match ^[A-Za-z0-9-._]+$. Jobs that did not match this before were allowed but did not provide a good user experience.
  • November 15, 2018 the hook service account now requires RBAC privileges to create ConfigMaps to support new functionality in the updateconfig plugin.
  • November 9, 2018 Prow gerrit client label/annotations now have a prow.k8s.io/ namespace prefix, if you have a gerrit deployment, please bump both cmd/gerrit and cmd/crier.
  • November 8, 2018 plank now defaults jobs with decorate: true to have automountServiceAccountToken: false in their PodSpec if unset. Jobs that used the default service account should explicitly set this field to maintain functionality.
  • October 16, 2018 Prow tls-cert management has been migrated from kube-lego to cert-manager.
  • October 12, 2018 Removed deprecated buildId environment variable from prow jobs. Use BUILD_ID.
  • October 3, 2018 -github-token-file replaced with -github-token-path for consistency with branchprotector and peribolos which were already using -github-token-path. -github-token-file will continue to work through the remainder of 2018, but it will be removed in early 2019. The following commands are affected: cherrypicker, hook, jenkins-operator, needs-rebase, phony, plank, refresh, and tide.
  • October 1, 2018 bazel is the one official way to build container images. Please use prow/bump.sh and/or bazel run //prow:release-push
  • Sep 27, 2018 If you are setting explicit decorate configs, the format has changed from 
    - name: job-foo
  decorate: true
  timeout: 1
    to 
    - name: job-foo
  decorate: true
  decoration_config:
    timeout: 1
  • September 24, 2018 the splice component has been deleted following the deletion of mungegithub.
  • July 9, 2018 milestone format has changed from 
    milestone:
 maintainers_id: <some_team_id>
 maintainers_team: <some_team_name>
    to repo_milestone 
    repo_milestone:
 <some_repo_name>:
   maintainers_id: <some_team_id>
   maintainers_team: <some_team_name>
  • July 2, 2018 the trigger plugin will now trust PRs from repo collaborators. Use only_org_members: true in the trigger config to temporarily disable this behavior.
  • June 14, 2018 the updateconfig plugin will only add data to your ConfigMaps using the basename of the updated file, instead of using that and also duplicating the data using the name of the ConfigMap as a key
  • June 1, 2018 all unquoted boolean fields in config.yaml that were unmarshall into type string now need to be quoted to avoid unmarshalling error.
  • May 9, 2018 deck logs for jobs run as Pods will now return logs for the "test" container only.
  • April 2, 2018 updateconfig format has been changed from 
    path/to/some/other/thing: configName
    to 
    path/to/some/other/thing:
  Name: configName
  # If unspecified, Namespace default to the value of ProwJobNamespace.
  Namespace: myNamespace
  • March 15, 2018 jenkins_operator is removed from the config in favor of jenkins_operators.
  • March 1, 2018 MilestoneStatus has been removed from the plugins Configuration in favor of the Milestone which is shared between two plugins: 1) milestonestatus and 2) milestone. The milestonestatus plugin now uses the Milestone object to get the maintainers team ID
  • February 27, 2018 jenkins-operator does not use $BUILD_ID as a fallback to $PROW_JOB_ID anymore.
  • February 15, 2018 jenkins-operator can now accept the --tot-url flag and will use the connection to tot to vend build identifiers as plank does, giving control over where in GCS artifacts land to Prow and away from Jenkins. Furthermore, the $BUILD_ID variable in Jenkins jobs will now correctly point to the build identifier vended by tot and a new variable, $PROW_JOB_ID, points to the identifier used to link ProwJobs to Jenkins builds. $PROW_JOB_ID fallbacks to $BUILD_ID for backwards-compatibility, ie. to not break in-flight jobs during the time of the jenkins-operator update.
  • February 1, 2018 The config_updater section in plugins.yaml now uses a maps object instead of config_file, plugin_file strings. Please switch over before July.
  • November 30, 2017 If you use tide, you'll need to switch your query format and bump all prow component versions to reflect the changes in #5754.
  • November 14, 2017 horologium:0.17 fixes cron job not being scheduled.
  • November 10, 2017 If you want to use cron feature in prow, you need to bump to: hook:0.181, sinker:0.23, deck:0.62, splice:0.32, horologium:0.15 plank:0.60, jenkins-operator:0.57 and tide:0.12 to avoid error spamming from the config parser.
  • November 7, 2017 plank:0.56 fixes bug introduced in plank:0.53 that affects controllers using an empty kubernetes selector.
  • November 7, 2017 jenkins-operator:0.51 provides jobs with the $BUILD_ID variable as well as the $buildId variable. The latter is deprecated and will be removed in a future version.
  • November 6, 2017 plank:0.55 provides Pods with the $BUILD_ID variable as well as the $BUILD_NUMBER variable. The latter is deprecated and will be removed in a future version.
  • November 3, 2017 Added EmptyDir volume type. To update to hook:0.176+ or horologium:0.11+ the following components must have the associated minimum versions: deck:0.58+, plank:0.54+, jenkins-operator:0.50+.
  • November 2, 2017 plank:0.53 changes the type label key to prow.k8s.io/type and the job annotation key to prow.k8s.io/job added in pods.
  • October 14, 2017 deck:0:53+ needs to be updated in conjunction with jenkins-operator:0:48+ since Jenkins logs are now exposed from the operator and deck needs to use the external_agent_logs option in order to redirect requests to the location jenkins-operator exposes logs.
  • October 13, 2017 hook:0.174, plank:0.50, and jenkins-operator:0.47 drop the deprecated github-bot-name flag.
  • October 2, 2017 hook:0.171: The label plugin was split into three plugins (label, sigmention, milestonestatus). Breaking changes:
    • The configuration key for the milestone maintainer team's ID has been changed. Previously the team ID was stored in the plugins config at key label>>milestone_maintainers_id. Now that the milestone status labels are handled in the milestonestatus plugin instead of the label plugin, the team ID is stored at key milestonestatus>>maintainers_id.
    • The sigmention and milestonestatus plugins must be enabled on any repos that require them since their functionality is no longer included in the label plugin.
  • September 3, 2017 sinker:0.17 now deletes pods labeled by plank:0.42 in order to avoid cleaning up unrelated pods that happen to be found in the same namespace prow runs pods. If you run other pods in the same namespace, you will have to manually delete or label the prow-owned pods, otherwise you can bulk-label all of them with the following command and let sinker collect them normally: 
    kubectl label pods --all -n pod_namespace created-by-prow=true
  • September 1, 2017 deck:0.44 and jenkins-operator:0.41 controllers no longer provide a default value for the --jenkins-token-file flag. Cluster administrators should provide --jenkins-token-file=/etc/jenkins/jenkins explicitly when upgrading to a new version of these components if they were previously relying on the default. For more context, please see this pull request.
  • August 29, 2017 Configuration specific to plugins is now held in the plugins ConfigMap and serialized in this repo in the plugins.yaml file. Cluster administrators upgrading to hook:0.148 or newer should move plugin configuration from the main ConfigMap. For more context, please see this pull request.