Add a configuration to automatically label pull requests

.github/dependabot.yml

@@ -12,6 +12,7 @@ updates:
     #   - dependency-name: actions/cache
     #   - dependency-name: actions/checkout
     #   - dependency-name: actions/dependency-review-action
+    #   - dependency-name: actions/labeler
     #   - dependency-name: actions/setup-go
     #   - dependency-name: actions/setup-python
     #   - dependency-name: cisagov/action-job-preamble

.github/labeler.yml

@@ -0,0 +1,63 @@
+---
+# Each entry in this file is a label that will be applied to pull requests
+# if there is a match based on the matching rules for the entry. Please see
+# the actions/labeler documentation for more information:
+# https://github.com/actions/labeler#match-object
+#
+# Note: Verify that the label you want to use is defined in the
+# crazy-max/ghaction-github-labeler configuration file located at
+# .github/labels.yml.
+
+# Enable if Ansible playbooks are used in the repository.
+# ansible:
+#   - changed-files:
+#       - any-glob-to-any-file:
+#           - "**/ansible/**"
+dependencies:
+  - changed-files:
+      - any-glob-to-any-file:
+          # Add any dependency files used.
+          - .pre-commit-config.yaml
+          - requirements*.txt
+documentation:
+  - changed-files:
+      - any-glob-to-any-file:
+          - "**/*.md"
+github-actions:
+  - changed-files:
+      - any-glob-to-any-file:
+          - .github/workflows/**
+# Enable if Packer is used in the repository.
+# packer:
+#   - changed-files:
+#       - any-glob-to-any-file:
+#           - "**/*.pkr.hcl"
+# Enable if Python is used in the repository.
+# python:
+#   - changed-files:
+#       - any-glob-to-any-file:
+#           - "**/*.py"
+# Enable if Terraform is used in the repository.
+# terraform:
+#   - changed-files:
+#       - any-glob-to-any-file:
+#           - "**/*.tf"
+test:
+  - changed-files:
+      - any-glob-to-any-file:
+          # Add any test-related files or paths.
+          - .ansible-lint
+          - .bandit.yml
+          - .flake8
+          - .isort.cfg
+          - .mdl_config.yaml
+          - .yamllint
+upstream update:
+  - head-branch:
+      # Any Lineage pull requests should use this branch.
+      - lineage/skeleton
+version bump:
+  - changed-files:
+      - any-glob-to-any-file:
+          # Ensure this matches your version tracking file(s).
+          - version.txt

.github/workflows/label-prs.yml

@@ -0,0 +1,93 @@
+---
+name: Label pull requests
+
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+    types:
+      - edited
+      - opened
+      - synchronize
+
+# Set a default shell for any run steps. The `-Eueo pipefail` sets errtrace,
+# nounset, errexit, and pipefail. The `-x` will print all commands as they are
+# run. Please see the GitHub Actions documentation for more information:
+# https://docs.github.com/en/actions/using-jobs/setting-default-values-for-jobs
+defaults:
+  run:
+    shell: bash -Eueo pipefail -x {0}
+
+jobs:
+  diagnostics:
+    name: Run diagnostics
+    # This job does not need any permissions
+    permissions: {}
+    runs-on: ubuntu-latest
+    steps:
+      # Note that a duplicate of this step must be added at the top of
+      # each job.
+      - name: Apply standard cisagov job preamble
+        uses: cisagov/action-job-preamble@v1
+        with:
+          check_github_status: "true"
+          # This functionality is poorly implemented and has been
+          # causing problems due to the MITM implementation hogging or
+          # leaking memory.  As a result we disable it by default.  If
+          # you want to temporarily enable it, simply set
+          # monitor_permissions equal to "true".
+          #
+          # TODO: Re-enable this functionality when practical.  See
+          # cisagov/skeleton-generic#207 for more details.
+          monitor_permissions: "false"
+          output_workflow_context: "true"
+          # Use a variable to specify the permissions monitoring
+          # configuration. By default this will yield the
+          # configuration stored in the cisagov organization-level
+          # variable, but if you want to use a different configuration
+          # then simply:
+          # 1. Create a repository-level variable with the name
+          # ACTIONS_PERMISSIONS_CONFIG.
+          # 2. Set this new variable's value to the configuration you
+          # want to use for this repository.
+          #
+          # Note in particular that changing the permissions
+          # monitoring configuration *does not* require you to modify
+          # this workflow.
+          permissions_monitoring_config: ${{ vars.ACTIONS_PERMISSIONS_CONFIG }}
+  label:
+    needs:
+      - diagnostics
+    permissions:
+      # Permissions required by actions/labeler
+      contents: read
+      issues: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Apply standard cisagov job preamble
+        uses: cisagov/action-job-preamble@v1
+        with:
+          # This functionality is poorly implemented and has been
+          # causing problems due to the MITM implementation hogging or
+          # leaking memory.  As a result we disable it by default.  If
+          # you want to temporarily enable it, simply set
+          # monitor_permissions equal to "true".
+          #
+          # TODO: Re-enable this functionality when practical.  See
+          # cisagov/skeleton-generic#207 for more details.
+          monitor_permissions: "false"
+          # Use a variable to specify the permissions monitoring
+          # configuration. By default this will yield the
+          # configuration stored in the cisagov organization-level
+          # variable, but if you want to use a different configuration
+          # then simply:
+          # 1. Create a repository-level variable with the name
+          # ACTIONS_PERMISSIONS_CONFIG.
+          # 2. Set this new variable's value to the configuration you
+          # want to use for this repository.
+          #
+          # Note in particular that changing the permissions
+          # monitoring configuration *does not* require you to modify
+          # this workflow.
+          permissions_monitoring_config: ${{ vars.ACTIONS_PERMISSIONS_CONFIG }}
+      - name: Apply suitable labels to a pull request
+        uses: actions/labeler@v6