ci: Simplify shell configuration by setting defaults

Author: jimmidyson

.github/workflows/checks.yml

@@ -22,6 +22,9 @@ permissions:
 jobs:
   unit-test:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Check out code
         uses: actions/checkout@v4
@@ -32,7 +35,6 @@ jobs:
           enable-cache: true
 
       - name: Run unit tests
-        shell: bash
         run: devbox run -- make test
 
       - name: Annotate tests
@@ -43,6 +45,9 @@ jobs:
 
   e2e-test:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Check out code
         uses: actions/checkout@v4
@@ -61,25 +66,25 @@ jobs:
 
       - if: steps.check_e2e_tests_exist.outputs.files_exists == 'true'
         name: Build and install on KinD
-        shell: bash
         run: devbox run -- make dev.run-on-kind
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - if: steps.check_e2e_tests_exist.outputs.files_exists == 'true'
         name: Run e2e tests
-        shell: bash
         run: devbox run -- make e2e-test
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - if: steps.check_e2e_tests_exist.outputs.files_exists == 'true' && always()
         name: Cleanup KinD cluster
-        shell: bash
         run: devbox run -- make kind.delete
 
   lint-go:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Check out code
         uses: actions/checkout@v4
@@ -91,7 +96,6 @@ jobs:
 
       - name: Export golang and golangci-lint versions
         id: versions
-        shell: bash
         run: |
           echo "golangci-lint=$(devbox run -- golangci-lint version --format short)" >>"${GITHUB_OUTPUT}"
           echo "golang=$(devbox run -- go version | grep -o "[[:digit:]]\+.[[:digit:]]\+\(.[[:digit:]]\+\)\?")" >>"${GITHUB_OUTPUT}"
@@ -130,6 +134,9 @@ jobs:
 
   pre-commit:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Check out code
         uses: actions/checkout@v4
@@ -148,13 +155,15 @@ jobs:
           key: pre-commit-3|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}
 
       - name: Run pre-commit
-        shell: bash
         run: devbox run -- make pre-commit
         env:
           SKIP: no-commit-to-branch,golangci-lint,actionlint-system
 
   lint-test-helm:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -168,7 +177,6 @@ jobs:
 
       - name: Run chart-testing (list-changed)
         id: list-changed
-        shell: bash
         run: |
           changed="$(devbox run -- \
             ct list-changed --config charts/ct-config.yaml \
@@ -179,14 +187,12 @@ jobs:
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Run chart-testing (lint)
-        shell: bash
         run: |
           devbox run -- \
             ct lint --config charts/ct-config.yaml
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Create kind cluster
-        shell: bash
         run: |
           devbox run -- \
             kind create cluster \
@@ -197,14 +203,12 @@ jobs:
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Build Docker images
-        shell: bash
         run: |
           devbox run -- \
             make release-snapshot
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Sideload docker image
-        shell: bash
         run: |
           devbox run -- \
             kind load docker-image \
@@ -213,7 +217,6 @@ jobs:
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Setup Cluster API and cert-manager
-        shell: bash
         run: |
           devbox run -- \
             make clusterctl.init
@@ -222,7 +225,6 @@ jobs:
 
       - if: steps.list-changed.outputs.changed == 'true'
         name: Run chart-testing (install)
-        shell: bash
         run: |
           devbox run -- \
             ct install \
@@ -233,7 +235,6 @@ jobs:
 
       - if: steps.list-changed.outputs.changed == 'true' && always()
         name: Delete chart-testing KinD cluster
-        shell: bash
         run: |
           devbox run -- \
             kind delete cluster --name chart-testing || true

.github/workflows/dependabot-automation.yaml

@@ -14,15 +14,17 @@ permissions:
 
 jobs:
   auto-approve:
-    runs-on: ubuntu-22.04
     if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' }}
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Dependabot metadata
         id: dependabot-metadata
         uses: dependabot/fetch-metadata@v1
       - uses: actions/checkout@v4
       - name: Approve a PR if not already approved
-        shell: bash
         run: |
           gh pr checkout "$PR_URL" # sets the upstream metadata for `gh pr status`
           if [ "$(gh pr status --json reviewDecision -q .currentBranch.reviewDecision)" != "APPROVED" ]; then
@@ -35,14 +37,16 @@ jobs:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
   enable-automerge:
-    runs-on: ubuntu-22.04
     if: ${{ github.event.pull_request.user.login == 'dependabot[bot]'}}
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - name: Dependabot metadata
         id: dependabot-metadata
         uses: dependabot/fetch-metadata@v1
       - name: Enable auto-merge for Dependabot PRs
-        shell: bash
         run: gh pr merge --auto --squash "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}

.github/workflows/github-pages.yml

@@ -12,6 +12,9 @@ on:
 jobs:
   deploy:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     permissions:
       contents: write
     concurrency:
@@ -36,12 +39,10 @@ jobs:
           cache-dependency-path: '**/package-lock.json'
 
       - name: Install necessary packages
-        shell: bash
         run: npm ci
         working-directory: ./docs/
 
       - name: Build
-        shell: bash
         run: hugo --minify
         working-directory: ./docs/
 

.github/workflows/release-tag.yaml

@@ -16,6 +16,9 @@ permissions:
 jobs:
   release-tag:
     runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: bash
     steps:
       - uses: actions/checkout@v4
         with:
@@ -35,7 +38,6 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Release
-        shell: bash
         run: devbox run -- make release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}