perf(ci): reduce GitHub Actions costs ~60-65% across all workflows
Analysis of Feb 17 data showed 400+ workflow runs/day consuming ~398 billable minutes (~200 hours/month projected). Implemented targeted optimizations: High-impact changes: - sec-audit.yml: add path filters (Cargo.toml, src/**, crates/**, deny.toml); skip docs-only PRs - test-benchmarks.yml: move from every-push-to-main to weekly schedule; retention 30d -> 7d - pub-docker-img.yml: tighten PR smoke build path filters to Docker-specific files only - sec-codeql.yml: reduce from twice-daily (14 runs/week) to weekly Medium-impact changes: - ci-run.yml: merge lint + lint-strict-delta into single job; drop --release from smoke build - feature-matrix.yml: remove push trigger (weekly-only); remove redundant cargo test step - dependabot.yml: monthly instead of weekly; reduce PR limits from 11 to 5/month; group all deps Runner cost savings: - Switch 6 lightweight API-only workflows to ubuntu-latest (PR Labeler, Intake, Auto Responder, Check Stale, Check Status, Sync Contributors) - pr-check-status.yml: reduce from every 12h to daily New files: - docs/ci-cost-optimization.md: comprehensive analysis and revised architecture documentation - scripts/ci/fetch_actions_data.py: reusable GitHub Actions cost analysis script Estimated impact: daily billable minutes ~400 -> ~120-150 (60-65%% reduction), monthly hours ~200 -> ~60-75, Dependabot PRs ~44/month -> ~5 (89%% reduction)
This commit is contained in:
Alex Gorevski
parent
8f7d879fd5
commit
44725da08c
15 changed files with 512 additions and 85 deletions
29
.github/dependabot.yml
vendored
29
.github/dependabot.yml
vendored
|
|
@ -4,13 +4,13 @@ updates:
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- package-ecosystem: cargo
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directory: "/"
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schedule:
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interval: weekly
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interval: monthly
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target-branch: main
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open-pull-requests-limit: 5
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open-pull-requests-limit: 3
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labels:
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- "dependencies"
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groups:
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rust-minor-patch:
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rust-all:
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patterns:
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- "*"
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update-types:
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@ -20,14 +20,31 @@ updates:
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- package-ecosystem: github-actions
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directory: "/"
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schedule:
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interval: weekly
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interval: monthly
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target-branch: main
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open-pull-requests-limit: 3
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open-pull-requests-limit: 1
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labels:
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- "ci"
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- "dependencies"
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groups:
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actions-minor-patch:
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actions-all:
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patterns:
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- "*"
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update-types:
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- minor
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- patch
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- package-ecosystem: docker
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directory: "/"
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schedule:
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interval: monthly
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target-branch: main
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open-pull-requests-limit: 1
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labels:
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- "ci"
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- "dependencies"
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groups:
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docker-all:
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patterns:
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- "*"
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update-types:
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40
.github/workflows/ci-run.yml
vendored
40
.github/workflows/ci-run.yml
vendored
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@ -41,25 +41,7 @@ jobs:
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run: ./scripts/ci/detect_change_scope.sh
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lint:
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name: Lint Gate (Format + Clippy)
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needs: [changes]
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if: needs.changes.outputs.rust_changed == 'true' && (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'ci:full'))
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runs-on: blacksmith-2vcpu-ubuntu-2404
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timeout-minutes: 20
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steps:
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- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
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with:
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fetch-depth: 0
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- uses: dtolnay/rust-toolchain@631a55b12751854ce901bb631d5902ceb48146f7 # stable
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with:
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toolchain: 1.92.0
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components: rustfmt, clippy
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- uses: useblacksmith/rust-cache@f53e7f127245d2a269b3d90879ccf259876842d5 # v3
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- name: Run rust quality gate
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run: ./scripts/ci/rust_quality_gate.sh
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lint-strict-delta:
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name: Lint Gate (Strict Delta)
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name: Lint Gate (Format + Clippy + Strict Delta)
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needs: [changes]
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if: needs.changes.outputs.rust_changed == 'true' && (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'ci:full'))
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runs-on: blacksmith-2vcpu-ubuntu-2404
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@ -71,8 +53,10 @@ jobs:
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- uses: dtolnay/rust-toolchain@631a55b12751854ce901bb631d5902ceb48146f7 # stable
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with:
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toolchain: 1.92.0
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components: clippy
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components: rustfmt, clippy
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- uses: useblacksmith/rust-cache@f53e7f127245d2a269b3d90879ccf259876842d5 # v3
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- name: Run rust quality gate
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run: ./scripts/ci/rust_quality_gate.sh
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- name: Run strict lint delta gate
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env:
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BASE_SHA: ${{ needs.changes.outputs.base_sha }}
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@ -80,8 +64,8 @@ jobs:
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test:
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name: Test
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needs: [changes, lint, lint-strict-delta]
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if: needs.changes.outputs.rust_changed == 'true' && (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'ci:full')) && needs.lint.result == 'success' && needs.lint-strict-delta.result == 'success'
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needs: [changes, lint]
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if: needs.changes.outputs.rust_changed == 'true' && (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'ci:full')) && needs.lint.result == 'success'
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runs-on: blacksmith-2vcpu-ubuntu-2404
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timeout-minutes: 30
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steps:
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@ -106,8 +90,8 @@ jobs:
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with:
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toolchain: 1.92.0
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- uses: useblacksmith/rust-cache@f53e7f127245d2a269b3d90879ccf259876842d5 # v3
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- name: Build release binary
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run: cargo build --release --locked --verbose
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- name: Build binary (smoke check)
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run: cargo build --locked --verbose
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docs-only:
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name: Docs-Only Fast Path
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@ -185,7 +169,7 @@ jobs:
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lint-feedback:
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name: Lint Feedback
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if: github.event_name == 'pull_request'
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needs: [changes, lint, lint-strict-delta, docs-quality]
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needs: [changes, lint, docs-quality]
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runs-on: blacksmith-2vcpu-ubuntu-2404
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permissions:
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contents: read
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@ -201,7 +185,7 @@ jobs:
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RUST_CHANGED: ${{ needs.changes.outputs.rust_changed }}
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DOCS_CHANGED: ${{ needs.changes.outputs.docs_changed }}
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LINT_RESULT: ${{ needs.lint.result }}
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LINT_DELTA_RESULT: ${{ needs.lint-strict-delta.result }}
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LINT_DELTA_RESULT: ${{ needs.lint.result }}
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DOCS_RESULT: ${{ needs.docs-quality.result }}
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with:
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script: |
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@ -231,7 +215,7 @@ jobs:
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ci-required:
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name: CI Required Gate
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if: always()
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needs: [changes, lint, lint-strict-delta, test, build, docs-only, non-rust, docs-quality, lint-feedback, workflow-owner-approval]
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needs: [changes, lint, test, build, docs-only, non-rust, docs-quality, lint-feedback, workflow-owner-approval]
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runs-on: blacksmith-2vcpu-ubuntu-2404
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steps:
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- name: Enforce required status
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@ -276,7 +260,7 @@ jobs:
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fi
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lint_result="${{ needs.lint.result }}"
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lint_strict_delta_result="${{ needs.lint-strict-delta.result }}"
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lint_strict_delta_result="${{ needs.lint.result }}"
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test_result="${{ needs.test.result }}"
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build_result="${{ needs.build.result }}"
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9
.github/workflows/feature-matrix.yml
vendored
9
.github/workflows/feature-matrix.yml
vendored
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@ -1,12 +1,6 @@
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name: Feature Matrix
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on:
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push:
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branches: [main]
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paths:
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- "Cargo.toml"
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- "Cargo.lock"
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- "src/**"
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schedule:
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- cron: "30 4 * * 1" # Weekly Monday 4:30am UTC
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workflow_dispatch:
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@ -61,6 +55,3 @@ jobs:
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- name: Check feature combination
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run: cargo check --locked ${{ matrix.args }}
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- name: Test feature combination
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run: cargo test --locked ${{ matrix.args }}
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15
.github/workflows/pr-auto-response.yml
vendored
15
.github/workflows/pr-auto-response.yml
vendored
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@ -15,16 +15,7 @@ jobs:
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(github.event.action == 'opened' || github.event.action == 'reopened' || github.event.action == 'labeled' || github.event.action == 'unlabeled')) ||
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(github.event_name == 'pull_request_target' &&
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(github.event.action == 'labeled' || github.event.action == 'unlabeled'))
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runs-on: blacksmith-2vcpu-ubuntu-2404
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permissions:
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contents: read
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issues: write
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pull-requests: write
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steps:
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- name: Checkout repository
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uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
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- name: Apply contributor tier label for issue author
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runs-on: ubuntu-latest
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uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
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env:
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LABEL_POLICY_PATH: .github/label-policy.json
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@ -34,7 +25,7 @@ jobs:
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await script({ github, context, core });
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first-interaction:
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if: github.event.action == 'opened'
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runs-on: blacksmith-2vcpu-ubuntu-2404
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runs-on: ubuntu-latest
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permissions:
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issues: write
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pull-requests: write
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@ -65,7 +56,7 @@ jobs:
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labeled-routes:
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if: github.event.action == 'labeled'
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runs-on: blacksmith-2vcpu-ubuntu-2404
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runs-on: ubuntu-latest
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permissions:
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contents: read
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issues: write
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4
.github/workflows/pr-check-stale.yml
vendored
4
.github/workflows/pr-check-stale.yml
vendored
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@ -12,9 +12,7 @@ jobs:
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permissions:
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issues: write
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pull-requests: write
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runs-on: blacksmith-2vcpu-ubuntu-2404
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steps:
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- name: Mark stale issues and pull requests
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runs-on: ubuntu-latest
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uses: actions/stale@b5d41d4e1d5dceea10e7104786b73624c18a190f # v10.2.0
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with:
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repo-token: ${{ secrets.GITHUB_TOKEN }}
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9
.github/workflows/pr-check-status.yml
vendored
9
.github/workflows/pr-check-status.yml
vendored
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@ -2,7 +2,7 @@ name: PR Check Status
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on:
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schedule:
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- cron: "15 */12 * * *"
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- cron: "15 8 * * *" # Once daily at 8:15am UTC
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workflow_dispatch:
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permissions: {}
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@ -13,12 +13,7 @@ concurrency:
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jobs:
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nudge-stale-prs:
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runs-on: blacksmith-2vcpu-ubuntu-2404
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permissions:
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contents: read
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pull-requests: write
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issues: write
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env:
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runs-on: ubuntu-latest
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STALE_HOURS: "48"
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steps:
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- name: Checkout repository
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|
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8
.github/workflows/pr-intake-checks.yml
vendored
8
.github/workflows/pr-intake-checks.yml
vendored
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@ -16,13 +16,7 @@ permissions:
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jobs:
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intake:
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name: Intake Checks
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runs-on: blacksmith-2vcpu-ubuntu-2404
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timeout-minutes: 10
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steps:
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- name: Checkout repository
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uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
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|
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- name: Run safe PR intake checks
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runs-on: ubuntu-latest
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uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
|
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with:
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script: |
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|
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3
.github/workflows/pr-labeler.yml
vendored
3
.github/workflows/pr-labeler.yml
vendored
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@ -25,8 +25,7 @@ permissions:
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jobs:
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label:
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runs-on: blacksmith-2vcpu-ubuntu-2404
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timeout-minutes: 10
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runs-on: ubuntu-latest
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steps:
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- name: Checkout repository
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uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
|
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|
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7
.github/workflows/pub-docker-img.yml
vendored
7
.github/workflows/pub-docker-img.yml
vendored
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@ -21,13 +21,8 @@ on:
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paths:
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- "Dockerfile"
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- ".dockerignore"
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- "Cargo.toml"
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- "Cargo.lock"
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- "docker-compose.yml"
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- "rust-toolchain.toml"
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- "src/**"
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- "crates/**"
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- "benches/**"
|
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- "firmware/**"
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- "dev/config.template.toml"
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- ".github/workflows/pub-docker-img.yml"
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workflow_dispatch:
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|
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12
.github/workflows/sec-audit.yml
vendored
12
.github/workflows/sec-audit.yml
vendored
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@ -3,8 +3,20 @@ name: Sec Audit
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on:
|
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push:
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branches: [main]
|
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paths:
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- "Cargo.toml"
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- "Cargo.lock"
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- "src/**"
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- "crates/**"
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- "deny.toml"
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pull_request:
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branches: [main]
|
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paths:
|
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- "Cargo.toml"
|
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- "Cargo.lock"
|
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- "src/**"
|
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- "crates/**"
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- "deny.toml"
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schedule:
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- cron: "0 6 * * 1" # Weekly on Monday 6am UTC
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|
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2
.github/workflows/sec-codeql.yml
vendored
2
.github/workflows/sec-codeql.yml
vendored
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@ -2,7 +2,7 @@ name: Sec CodeQL
|
|||
|
||||
on:
|
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schedule:
|
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- cron: "0 6,18 * * *" # Twice daily at 6am and 6pm UTC
|
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- cron: "0 6 * * 1" # Weekly Monday 6am UTC
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workflow_dispatch:
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|
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concurrency:
|
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|
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|
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2
.github/workflows/sync-contributors.yml
vendored
2
.github/workflows/sync-contributors.yml
vendored
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@ -17,7 +17,7 @@ permissions:
|
|||
jobs:
|
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update-notice:
|
||||
name: Update NOTICE with new contributors
|
||||
runs-on: blacksmith-2vcpu-ubuntu-2404
|
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runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Checkout repository
|
||||
uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
|
||||
|
|
|
|||
6
.github/workflows/test-benchmarks.yml
vendored
6
.github/workflows/test-benchmarks.yml
vendored
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@ -1,8 +1,8 @@
|
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name: Test Benchmarks
|
||||
|
||||
on:
|
||||
push:
|
||||
branches: [main]
|
||||
schedule:
|
||||
- cron: "0 3 * * 1" # Weekly Monday 3am UTC
|
||||
workflow_dispatch:
|
||||
|
||||
concurrency:
|
||||
|
|
@ -39,7 +39,7 @@ jobs:
|
|||
path: |
|
||||
target/criterion/
|
||||
benchmark_output.txt
|
||||
retention-days: 30
|
||||
retention-days: 7
|
||||
|
||||
- name: Post benchmark summary on PR
|
||||
if: github.event_name == 'pull_request'
|
||||
|
|
|
|||
295
docs/ci-cost-optimization.md
Normal file
295
docs/ci-cost-optimization.md
Normal file
|
|
@ -0,0 +1,295 @@
|
|||
# CI Cost Optimization — February 2026
|
||||
|
||||
> **Date:** 2026-02-18
|
||||
> **Status:** Implemented
|
||||
> **Impact:** ~60-65% reduction in estimated monthly GitHub Actions billable minutes
|
||||
|
||||
---
|
||||
|
||||
## Executive Summary
|
||||
|
||||
On February 17, 2026, the ZeroClaw repository consumed **400+ workflow runs** in a single day, totaling an estimated **398 billable minutes** (~6.6 hours). At this rate, monthly costs were projected at **~200 hours/month** (~12,000 billable minutes). This document describes the analysis performed, optimizations implemented, and the revised CI/CD architecture.
|
||||
|
||||
---
|
||||
|
||||
## Analysis Methodology
|
||||
|
||||
A Python script (`scripts/ci/fetch_actions_data.py`) was created to programmatically fetch and analyze all GitHub Actions workflow runs from the GitHub API for February 17, 2026. The script:
|
||||
|
||||
1. Fetched all completed workflow runs for the date via the GitHub REST API
|
||||
2. Grouped runs by workflow name
|
||||
3. Sampled job-level timing (up to 3 runs per workflow) to compute per-job durations
|
||||
4. Extrapolated to estimate total billable minutes per workflow
|
||||
|
||||
### Raw Data Summary (February 17, 2026)
|
||||
|
||||
| Rank | Workflow | Runs/Day | Est. Minutes/Day | Primary Trigger |
|
||||
|------|----------|----------|-------------------|-----------------|
|
||||
| 1 | Rust Package Security Audit | 57 | 102 | Every PR + push |
|
||||
| 2 | CI Run | 57 | 70 | Every PR + push |
|
||||
| 3 | Performance Benchmarks | 15 | 63 | Every push to main |
|
||||
| 4 | Docker | 20 | 63 | PR + push |
|
||||
| 5 | PR Labeler | 69 | 20 | Every PR event |
|
||||
| 6 | Feature Matrix | 3 | 19 | Push to main |
|
||||
| 7 | Integration / E2E Tests | 15 | 17 | Every push to main |
|
||||
| 8 | Workflow Sanity | 31 | 16 | Push + PR |
|
||||
| 9 | Copilot Code Review | 6 | 14 | Dynamic |
|
||||
| 10 | PR Intake Checks | 70 | 7 | Every PR event |
|
||||
| 11 | PR Auto Responder | 47 | 4 | PR + issues |
|
||||
| | **Total** | **400+** | **~398** | |
|
||||
|
||||
### Key Findings
|
||||
|
||||
- **15 pushes to main in ~2 hours** on Feb 17, each triggering 6-8 parallel workflows
|
||||
- **Security Audit** was the single largest cost driver (102 min/day) with no path filtering
|
||||
- **PR Auto Responder** had an **81% failure rate** (38/47 runs failing) — wasting runner time
|
||||
- **CodeQL** runs twice daily (not captured in Feb 17 data since it's schedule-only) — adding ~3.5h/week
|
||||
- **Benchmarks** ran on every push to main (15x in one day) despite being regression-focused
|
||||
- **Dependabot** could generate up to 11 PRs/week, each triggering the full CI cascade
|
||||
|
||||
---
|
||||
|
||||
## Changes Implemented
|
||||
|
||||
### 1. Security Audit — Path Filters Added
|
||||
|
||||
**File:** `.github/workflows/sec-audit.yml`
|
||||
|
||||
**Before:** Ran on every PR and every push to main, regardless of what files changed.
|
||||
|
||||
**After:** Only runs when dependency or source files change:
|
||||
- `Cargo.toml`, `Cargo.lock`, `src/**`, `crates/**`, `deny.toml`
|
||||
|
||||
**Weekly schedule retained** as a safety net for advisory database updates.
|
||||
|
||||
**Estimated savings:** ~60-70% of security audit runs eliminated (~30-35 hours/month)
|
||||
|
||||
### 2. Performance Benchmarks — Moved to Weekly Schedule
|
||||
|
||||
**File:** `.github/workflows/test-benchmarks.yml`
|
||||
|
||||
**Before:** Ran on every push to main (15x/day on Feb 17).
|
||||
|
||||
**After:** Runs weekly (Monday 3am UTC) + on-demand via `workflow_dispatch`.
|
||||
|
||||
**Artifact retention** reduced from 30 days to 7 days to lower storage costs.
|
||||
|
||||
**Rationale:** Benchmark regressions don't need per-commit detection. Weekly cadence catches regressions within one development cycle.
|
||||
|
||||
**Estimated savings:** ~90% reduction (~28 hours/month)
|
||||
|
||||
### 3. Docker PR Smoke Builds — Tightened Path Filters
|
||||
|
||||
**File:** `.github/workflows/pub-docker-img.yml`
|
||||
|
||||
**Before:** PR smoke builds triggered on any change to `src/**`, `crates/**`, `benches/**`, `firmware/**`, etc.
|
||||
|
||||
**After:** PR smoke builds only trigger on Docker-specific files:
|
||||
- `Dockerfile`, `.dockerignore`, `docker-compose.yml`, `rust-toolchain.toml`, `dev/config.template.toml`, `.github/workflows/pub-docker-img.yml`
|
||||
|
||||
**Push-to-main triggers unchanged** — production Docker images still rebuild on source changes.
|
||||
|
||||
**Estimated savings:** ~40-50% fewer Docker smoke builds (~12-15 hours/month)
|
||||
|
||||
### 4. CodeQL — Reduced from Twice-Daily to Weekly
|
||||
|
||||
**File:** `.github/workflows/sec-codeql.yml`
|
||||
|
||||
**Before:** Ran twice daily at 6am and 6pm UTC (14 runs/week), each performing a full `cargo build --workspace --all-targets`.
|
||||
|
||||
**After:** Runs weekly (Monday 6am UTC) + on-demand.
|
||||
|
||||
**Rationale:** CodeQL for Rust is still maturing. Weekly scans are standard practice for security-focused projects. On-demand dispatch available for urgent scans.
|
||||
|
||||
**Estimated savings:** ~12 hours/month
|
||||
|
||||
### 5. CI Run — Merged Lint Jobs + Dropped `--release` Build
|
||||
|
||||
**File:** `.github/workflows/ci-run.yml`
|
||||
|
||||
**Changes:**
|
||||
1. **Merged `lint` and `lint-strict-delta` into a single job** — Previously these were two separate parallel jobs, each requiring a full runner spin-up, Rust toolchain install, and cache restore. Now they run sequentially in one job.
|
||||
2. **Dropped `--release` flag from smoke build** — `cargo build --release` is 2-3x slower than debug due to optimizations. For a smoke check validating compilation, debug mode is equivalent.
|
||||
|
||||
**Estimated savings:** ~1 runner job per CI invocation + faster build times
|
||||
|
||||
### 6. Feature Matrix — Weekly-Only + Check-Only
|
||||
|
||||
**File:** `.github/workflows/feature-matrix.yml`
|
||||
|
||||
**Before:** Ran on every push to main touching `src/**` (3x on Feb 17) with 4 matrix entries, each running both `cargo check` AND `cargo test`.
|
||||
|
||||
**After:**
|
||||
1. **Removed push trigger** — Now weekly-only (Monday 4:30am UTC) + on-demand
|
||||
2. **Removed `cargo test`** — Only runs `cargo check --locked` per feature combination. Tests are already covered by the main CI Run workflow.
|
||||
|
||||
**Estimated savings:** ~50-75% of feature matrix compute eliminated
|
||||
|
||||
### 7. Lightweight Jobs Moved to `ubuntu-latest`
|
||||
|
||||
**Files affected:**
|
||||
- `.github/workflows/pr-check-stale.yml`
|
||||
- `.github/workflows/pr-check-status.yml`
|
||||
- `.github/workflows/pr-auto-response.yml`
|
||||
- `.github/workflows/pr-intake-checks.yml`
|
||||
- `.github/workflows/pr-labeler.yml`
|
||||
- `.github/workflows/sync-contributors.yml`
|
||||
|
||||
**Before:** All jobs used `blacksmith-2vcpu-ubuntu-2404` runners, even for lightweight API-only operations (labeling, stale checks, greetings).
|
||||
|
||||
**After:** Moved to `ubuntu-latest` (GitHub-hosted runners). These jobs only make API calls and run JavaScript scripts — they don't need Rust toolchains or specialized runners.
|
||||
|
||||
**Additional change:** `pr-check-status.yml` schedule reduced from every 12 hours to once daily (8:15am UTC).
|
||||
|
||||
### 8. Dependabot — Reduced Frequency and PR Limits
|
||||
|
||||
**File:** `.github/dependabot.yml`
|
||||
|
||||
**Before:**
|
||||
- Cargo: weekly, 5 open PRs max
|
||||
- GitHub Actions: weekly, 3 open PRs max
|
||||
- Docker: weekly, 3 open PRs max
|
||||
- Total: up to 11 Dependabot PRs/week, each triggering full CI
|
||||
|
||||
**After:**
|
||||
- Cargo: **monthly**, 3 open PRs max, all deps grouped into single PR
|
||||
- GitHub Actions: **monthly**, 1 open PR max, all grouped
|
||||
- Docker: **monthly**, 1 open PR max, all grouped
|
||||
- Total: up to 5 Dependabot PRs/month
|
||||
|
||||
**Rationale:** Each Dependabot PR triggers the full CI pipeline. Reducing from weekly to monthly and grouping updates into fewer PRs dramatically reduces CI cascade costs while still keeping dependencies current.
|
||||
|
||||
---
|
||||
|
||||
## Known Issues to Investigate
|
||||
|
||||
### PR Auto Responder — 81% Failure Rate
|
||||
|
||||
The `pr-auto-response.yml` workflow had 38 failures out of 47 runs on Feb 17. The `contributor-tier-issues` job fires on every issue `labeled`/`unlabeled` event, even when the label is not contributor-tier related. While the JavaScript handler exits early for non-tier labels, the runner still spins up and checks out the repository.
|
||||
|
||||
**Recommendations for further investigation:**
|
||||
1. Add more specific event filtering at the workflow level to reduce unnecessary runs
|
||||
2. Check if the failures are related to GitHub API rate limiting on the search endpoint
|
||||
3. Consider whether `continue-on-error: true` should be added to non-critical jobs
|
||||
|
||||
---
|
||||
|
||||
## Revised Workflow Architecture
|
||||
|
||||
### Workflow Frequency Overview
|
||||
|
||||
| Workflow | Trigger | Runner |
|
||||
|----------|---------|--------|
|
||||
| **CI Run** | Push to main + PR | Blacksmith |
|
||||
| **Sec Audit** | Push/PR (path-filtered) + weekly schedule | Blacksmith |
|
||||
| **Sec CodeQL** | Weekly schedule | Blacksmith |
|
||||
| **Test E2E** | Push to main | Blacksmith |
|
||||
| **Test Benchmarks** | Weekly schedule | Blacksmith |
|
||||
| **Test Fuzz** | Weekly schedule | Blacksmith |
|
||||
| **Feature Matrix** | Weekly schedule | Blacksmith |
|
||||
| **Docker Publish** | Push to main (broad paths) + PR (Docker-only paths) | Blacksmith |
|
||||
| **Release** | Tag push only | GitHub-hosted |
|
||||
| **Workflow Sanity** | Push/PR (workflow paths only) | Blacksmith |
|
||||
| **Label Policy** | Push/PR (policy paths only) | Blacksmith |
|
||||
| **PR Labeler** | PR events | **ubuntu-latest** |
|
||||
| **PR Intake Checks** | PR events | **ubuntu-latest** |
|
||||
| **PR Auto Responder** | PR + issue events | **ubuntu-latest** |
|
||||
| **PR Check Stale** | Daily schedule | **ubuntu-latest** |
|
||||
| **PR Check Status** | Daily schedule | **ubuntu-latest** |
|
||||
| **Sync Contributors** | Weekly schedule | **ubuntu-latest** |
|
||||
|
||||
### Weekly Schedule Summary
|
||||
|
||||
| Day | Time (UTC) | Workflow |
|
||||
|-----|-----------|----------|
|
||||
| Monday | 03:00 | Test Benchmarks |
|
||||
| Monday | 04:30 | Feature Matrix |
|
||||
| Monday | 06:00 | Sec Audit (schedule) |
|
||||
| Monday | 06:00 | Sec CodeQL |
|
||||
| Sunday | 00:00 | Sync Contributors |
|
||||
| Sunday | 02:00 | Test Fuzz |
|
||||
| Daily | 02:20 | PR Check Stale |
|
||||
| Daily | 08:15 | PR Check Status |
|
||||
|
||||
### CI Run Job Dependency Graph
|
||||
|
||||
```
|
||||
changes ──┬── lint (Format + Clippy + Strict Delta)
|
||||
│ └── test
|
||||
├── build (Smoke, debug mode)
|
||||
├── docs-only (fast path)
|
||||
├── non-rust (fast path)
|
||||
├── docs-quality
|
||||
└── workflow-owner-approval
|
||||
|
||||
All above ──── ci-required (final gate)
|
||||
```
|
||||
|
||||
### Push-to-Main Trigger Cascade
|
||||
|
||||
When code is pushed to `main`, the following workflows trigger:
|
||||
|
||||
1. **CI Run** — Always (change-detection gates individual jobs)
|
||||
2. **Sec Audit** — Only if `Cargo.toml`, `Cargo.lock`, `src/**`, `crates/**`, or `deny.toml` changed
|
||||
3. **Test E2E** — Always
|
||||
4. **Docker Publish** — Only if broad source paths changed
|
||||
5. **Workflow Sanity** — Only if workflow files changed
|
||||
|
||||
**No longer triggered on push:**
|
||||
- ~~Performance Benchmarks~~ → Weekly only
|
||||
- ~~Feature Matrix~~ → Weekly only
|
||||
|
||||
---
|
||||
|
||||
## Estimated Impact
|
||||
|
||||
| Metric | Before | After | Savings |
|
||||
|--------|--------|-------|---------|
|
||||
| Daily workflow runs | 400+ | ~150-180 | ~55-60% |
|
||||
| Daily billable minutes | ~400 min | ~120-150 min | ~60-65% |
|
||||
| Monthly billable hours | ~200 hours | ~60-75 hours | ~60-65% |
|
||||
| Dependabot PRs/month | ~44 | ~5 | ~89% |
|
||||
| CodeQL runs/week | 14 | 1 | ~93% |
|
||||
| Benchmark runs/day | ~15 | 0 (weekly: ~1) | ~99% |
|
||||
|
||||
---
|
||||
|
||||
## Rollback Strategy
|
||||
|
||||
Each change is isolated to a single workflow file. To rollback any specific optimization:
|
||||
|
||||
1. **Revert the specific file** using `git checkout <commit>^ -- <file-path>`
|
||||
2. Changes are backward-compatible — no downstream code or configuration depends on the CI schedule/trigger changes
|
||||
3. All workflows retain `workflow_dispatch` triggers for manual invocation when needed
|
||||
|
||||
---
|
||||
|
||||
## Validation Checklist
|
||||
|
||||
- [ ] Verify CI Run workflow passes on next PR with Rust changes
|
||||
- [ ] Verify Security Audit skips docs-only PRs
|
||||
- [ ] Verify Docker smoke build only triggers on Dockerfile changes in PRs
|
||||
- [ ] Verify weekly schedules fire correctly (check after first Monday)
|
||||
- [ ] Monitor PR Auto Responder failure rate after switching to `ubuntu-latest`
|
||||
- [ ] Verify Dependabot respects new monthly schedule and limits
|
||||
|
||||
---
|
||||
|
||||
## Files Modified
|
||||
|
||||
| File | Change Summary |
|
||||
|------|---------------|
|
||||
| `.github/workflows/sec-audit.yml` | Added path filters for push and PR triggers |
|
||||
| `.github/workflows/test-benchmarks.yml` | Changed to weekly schedule; reduced artifact retention to 7 days |
|
||||
| `.github/workflows/pub-docker-img.yml` | Tightened PR path filters to Docker-specific files |
|
||||
| `.github/workflows/sec-codeql.yml` | Changed from twice-daily to weekly schedule |
|
||||
| `.github/workflows/ci-run.yml` | Merged lint jobs; dropped `--release` from smoke build |
|
||||
| `.github/workflows/feature-matrix.yml` | Removed push trigger; removed `cargo test` step |
|
||||
| `.github/workflows/pr-check-stale.yml` | Switched to `ubuntu-latest` |
|
||||
| `.github/workflows/pr-check-status.yml` | Switched to `ubuntu-latest`; reduced to daily schedule |
|
||||
| `.github/workflows/pr-auto-response.yml` | Switched all jobs to `ubuntu-latest` |
|
||||
| `.github/workflows/pr-intake-checks.yml` | Switched to `ubuntu-latest` |
|
||||
| `.github/workflows/pr-labeler.yml` | Switched to `ubuntu-latest` |
|
||||
| `.github/workflows/sync-contributors.yml` | Switched to `ubuntu-latest` |
|
||||
| `.github/dependabot.yml` | Changed to monthly schedule; reduced PR limits; grouped all deps |
|
||||
| `scripts/ci/fetch_actions_data.py` | New: cost analysis script for GitHub Actions runs |
|
||||
156
scripts/ci/fetch_actions_data.py
Normal file
156
scripts/ci/fetch_actions_data.py
Normal file
|
|
@ -0,0 +1,156 @@
|
|||
#!/usr/bin/env python3
|
||||
"""Fetch GitHub Actions workflow runs for a given date and summarize costs."""
|
||||
|
||||
import json
|
||||
import subprocess
|
||||
import sys
|
||||
from datetime import datetime, timezone
|
||||
|
||||
|
||||
def fetch_runs(repo, date_str, page=1, per_page=100):
|
||||
"""Fetch completed workflow runs for a given date."""
|
||||
url = (
|
||||
f"https://api.github.com/repos/{repo}/actions/runs"
|
||||
f"?created={date_str}&per_page={per_page}&page={page}"
|
||||
)
|
||||
result = subprocess.run(
|
||||
["curl", "-sS", "-H", "Accept: application/vnd.github+json", url],
|
||||
capture_output=True, text=True
|
||||
)
|
||||
return json.loads(result.stdout)
|
||||
|
||||
|
||||
def fetch_jobs(repo, run_id):
|
||||
"""Fetch jobs for a specific run."""
|
||||
url = f"https://api.github.com/repos/{repo}/actions/runs/{run_id}/jobs?per_page=100"
|
||||
result = subprocess.run(
|
||||
["curl", "-sS", "-H", "Accept: application/vnd.github+json", url],
|
||||
capture_output=True, text=True
|
||||
)
|
||||
return json.loads(result.stdout)
|
||||
|
||||
|
||||
def parse_duration(started, completed):
|
||||
"""Return duration in seconds between two ISO timestamps."""
|
||||
if not started or not completed:
|
||||
return 0
|
||||
try:
|
||||
s = datetime.fromisoformat(started.replace("Z", "+00:00"))
|
||||
c = datetime.fromisoformat(completed.replace("Z", "+00:00"))
|
||||
return max(0, (c - s).total_seconds())
|
||||
except Exception:
|
||||
return 0
|
||||
|
||||
|
||||
def main():
|
||||
repo = "zeroclaw-labs/zeroclaw"
|
||||
date_str = "2026-02-17"
|
||||
|
||||
print(f"Fetching workflow runs for {repo} on {date_str}...")
|
||||
print("=" * 100)
|
||||
|
||||
all_runs = []
|
||||
for page in range(1, 5): # up to 400 runs
|
||||
data = fetch_runs(repo, date_str, page=page)
|
||||
runs = data.get("workflow_runs", [])
|
||||
if not runs:
|
||||
break
|
||||
all_runs.extend(runs)
|
||||
if len(runs) < 100:
|
||||
break
|
||||
|
||||
print(f"Total workflow runs found: {len(all_runs)}")
|
||||
print()
|
||||
|
||||
# Group by workflow name
|
||||
workflow_stats = {}
|
||||
for run in all_runs:
|
||||
name = run.get("name", "Unknown")
|
||||
event = run.get("event", "unknown")
|
||||
conclusion = run.get("conclusion", "unknown")
|
||||
run_id = run.get("id")
|
||||
|
||||
if name not in workflow_stats:
|
||||
workflow_stats[name] = {
|
||||
"count": 0,
|
||||
"events": {},
|
||||
"conclusions": {},
|
||||
"total_job_seconds": 0,
|
||||
"total_jobs": 0,
|
||||
"run_ids": [],
|
||||
}
|
||||
|
||||
workflow_stats[name]["count"] += 1
|
||||
workflow_stats[name]["events"][event] = workflow_stats[name]["events"].get(event, 0) + 1
|
||||
workflow_stats[name]["conclusions"][conclusion] = workflow_stats[name]["conclusions"].get(conclusion, 0) + 1
|
||||
workflow_stats[name]["run_ids"].append(run_id)
|
||||
|
||||
# For each workflow, sample up to 3 runs to get job-level timing
|
||||
print("Sampling job-level timing (up to 3 runs per workflow)...")
|
||||
print()
|
||||
|
||||
for name, stats in workflow_stats.items():
|
||||
sample_ids = stats["run_ids"][:3]
|
||||
for run_id in sample_ids:
|
||||
jobs_data = fetch_jobs(repo, run_id)
|
||||
jobs = jobs_data.get("jobs", [])
|
||||
for job in jobs:
|
||||
started = job.get("started_at")
|
||||
completed = job.get("completed_at")
|
||||
duration = parse_duration(started, completed)
|
||||
stats["total_job_seconds"] += duration
|
||||
stats["total_jobs"] += 1
|
||||
|
||||
# Extrapolate: if we sampled N runs but there are M total, scale up
|
||||
sampled = len(sample_ids)
|
||||
total = stats["count"]
|
||||
if sampled > 0 and sampled < total:
|
||||
scale = total / sampled
|
||||
stats["estimated_total_seconds"] = stats["total_job_seconds"] * scale
|
||||
else:
|
||||
stats["estimated_total_seconds"] = stats["total_job_seconds"]
|
||||
|
||||
# Print summary sorted by estimated cost (descending)
|
||||
sorted_workflows = sorted(
|
||||
workflow_stats.items(),
|
||||
key=lambda x: x[1]["estimated_total_seconds"],
|
||||
reverse=True
|
||||
)
|
||||
|
||||
print("=" * 100)
|
||||
print(f"{'Workflow':<40} {'Runs':>5} {'SampledJobs':>12} {'SampledMins':>12} {'Est.TotalMins':>14} {'Events'}")
|
||||
print("-" * 100)
|
||||
|
||||
grand_total_minutes = 0
|
||||
for name, stats in sorted_workflows:
|
||||
sampled_mins = stats["total_job_seconds"] / 60
|
||||
est_total_mins = stats["estimated_total_seconds"] / 60
|
||||
grand_total_minutes += est_total_mins
|
||||
events_str = ", ".join(f"{k}={v}" for k, v in stats["events"].items())
|
||||
conclusions_str = ", ".join(f"{k}={v}" for k, v in stats["conclusions"].items())
|
||||
print(
|
||||
f"{name:<40} {stats['count']:>5} {stats['total_jobs']:>12} "
|
||||
f"{sampled_mins:>12.1f} {est_total_mins:>14.1f} {events_str}"
|
||||
)
|
||||
print(f"{'':>40} {'':>5} {'':>12} {'':>12} {'':>14} outcomes: {conclusions_str}")
|
||||
|
||||
print("-" * 100)
|
||||
print(f"{'GRAND TOTAL':>40} {len(all_runs):>5} {'':>12} {'':>12} {grand_total_minutes:>14.1f}")
|
||||
print(f"\nEstimated total billable minutes on {date_str}: {grand_total_minutes:.0f} min ({grand_total_minutes/60:.1f} hours)")
|
||||
print()
|
||||
|
||||
# Also show raw run list
|
||||
print("\n" + "=" * 100)
|
||||
print("DETAILED RUN LIST")
|
||||
print("=" * 100)
|
||||
for run in all_runs:
|
||||
name = run.get("name", "Unknown")
|
||||
event = run.get("event", "unknown")
|
||||
conclusion = run.get("conclusion", "unknown")
|
||||
run_id = run.get("id")
|
||||
started = run.get("run_started_at", "?")
|
||||
print(f" [{run_id}] {name:<40} conclusion={conclusion:<12} event={event:<20} started={started}")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Loading…
Add table
Add a link
Reference in a new issue