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ProwTrans

Description

prowtrans is a command-line interface (CLI) tool used to generate Prow job objects by transforming existing Prow job objects.

Installation

Install using Golang:

GO111MODULE="on" go get -u istio.io/test-infra/tools/prowtrans/cmd/prowtrans

Install using Docker:

docker pull gcr.io/istio-testing/prowtrans:latest

Install from source:

git clone --depth=1 https://github.com/istio/test-infra.git
cd ./test-infra/tools/prowtrans/cmd/prowtrans
go install

Usage

Run using Golang:

Ensure $GOPATH/bin is on your $PATH; or execute $GOPATH/bin/prowtrans directly.

prowtrans <options>

Run using Docker:

docker run gcr.io/istio-testing/prowtrans:latest <options>
export INPUT="/prow/config/jobs"
export CONFIGS="/prow/config/istio-private_jobs"
docker run --mount type=bind,source="$(pwd)/prow",target="/prow" \
    gcr.io/istio-testing/prowtrans:latest \
    --configs=${CONFIGS} --input=${INPUT}

The following is a list of supported options for prowtrans. The only required option is -m, --mapping, which is the translation mapping between public/private Github organizations.

  -a, --annotations stringToString   Annotations to apply to the job(s) (default [])
      --branches strings             Branch(es) to generate job(s) for.
      --branches-out strings         Override output branch(es) for generated job(s).
      --bucket string                GCS bucket name to upload logs and build artifacts to.
      --channel string               Slack channel to report job status notifications to.
      --clean                        Clean output files before job(s) generation.
      --cluster string               GCP cluster to run the job(s) in.
      --configs strings              Path to files or directories containing yaml job transforms.
      --dry-run                      Run in dry run mode.
  -e, --env stringToString           Environment variables to set for the job(s). (default [])
      --env-denylist strings         Env(s) to denylist in generation process.
      --global string                Path to file containing global defaults configuration.
  -i, --input string                 Input file or directory containing job(s) to convert. (default ".")
      --job-allowlist strings        Job(s) to allowlist in generation process.
      --job-denylist strings         Job(s) to denylist in generation process.
  -t, --job-type strings             Job type(s) to process (e.g. presubmit, postsubmit. periodic). (default [presubmit,postsubmit,periodic])
  -l, --labels stringToString        Prow labels to apply to the job(s). (default [])
  -m, --mapping stringToString       Mapping between public and private Github organization(s). (default [])
      --modifier string              Modifier to apply to generated file and job name(s). (default "private")
  -o, --output string                Output file or directory to write generated job(s). (default ".")
      --override-selector            The existing node selector will be overridden rather than added to.
  -p, --presets strings              Path to file(s) containing additional presets.
      --refs                         Apply translation to all extra refs regardless of repo.
      --repo-allowlist strings       Repositories to allowlist in generation process.
      --repo-denylist strings        Repositories to denylist in generation process.
      --rerun-orgs strings           GitHub organizations to authorize job rerun for.
      --rerun-users strings          GitHub user to authorize job rerun for.
      --resolve                      Resolve and expand values for presets in generated job(s).
      --selector stringToString      Node selector(s) to constrain job(s). (default [])
  -s, --sort string                  Sort the job(s) by name: (e.g. (asc)ending, (desc)ending).
      --ssh-clone                    Enable a clone of the git repository over ssh.
      --ssh-key-secret string        GKE cluster secrets containing the Github ssh private key.
      --verbose                      Enable verbose output.
      --volume-denylist strings      Volume(s) to denylist in generation process.

Example

Transform all public jobs with istio organization to private jobs with istio-private organization in ./jobs directory:

prowtrans --mapping istio=istio-private --input ./jobs --output ./jobs

To perform the same transforms using a yaml configuration file ./config.yaml:

# config.yaml

transforms:
- mapping:
    istio: istio-private
  input: ./jobs
  output: ./jobs
prowtrans --configs=./config.yaml

Limit job generation to specific branches:

prowtrans --mapping istio=istio-private --branches master

Limit job generation to specific repositories:

prowtrans --mapping istio=istio-private --repo-allowlist cni, api

Limit job generation to specific job names:

prowtrans --mapping istio=istio-private --job-allowlist build_bots_postsubmit

Define the bucket to upload job results to:

prowtrans --mapping istio=istio-private --bucket istio-private-build

Define the ssh-key-secret secret to authorize repository clone with:

prowtrans --mapping istio=istio-private --ssh-key-secret ssh-key-secret

Add additional labels to the job:

prowtrans --mapping istio=istio-private --labels preset-service-account=true

Set the cluster on which the jobs will run:

prowtrans --mapping istio=istio-private --cluster private

Delete jobs in destination path prior to generation:

prowtrans --mapping istio=istio-private --clean

Changelog

  • 0.0.1: initial release
  • 0.0.2: add --branches-out option for overriding the output branch(es) of generated jobs.
  • 0.0.3: add --verbose option to enable verbose output and --configs option for specifying transforms via a yaml configuration file(s).
  • 0.0.4: add defaults key for specifying file-level defaults, support a .defaults.yaml file for local defaults, and add --global option for global defaults.
  • 0.0.5: rename --extra-refs option to --refs and designate extra-refs key for specifying a list of extra refs to append to job.
  • 0.0.6: --extra-refs will now replace existing refs, rather than adding to them.
  • 0.0.7: add --env-blacklist and volume-blacklist options for pruning env and volume/volumeMount objects, respectively, from generated jobs.
  • 0.0.8: rename --env-blacklist, --volume-blacklist, --job-blacklist, --job-whitelist, --repo-blacklist, and --repo-whitelist options to --env-denylist, --volume-denylist, --job-denylist, --job-allowlist, --repo-denylist, and --repo-allowlist and drop -b and -w shorthands