From 0a1010e63248c9ca9f042c870eb2c579ba6b9455 Mon Sep 17 00:00:00 2001
From: Adam Moussa <166072409+amoussa1229@users.noreply.github.com>
Date: Thu, 24 Sep 2026 23:24:57 +0000
Subject: [PATCH] feat(ci): add a static-site HCP deploy caller (PLAT-225)
 (#152)

Unfingerprinted Eleventy builds need a one-day asset cache, not the SPA immutable sync.
---
 .github/workflows/cd-hcp-static.yaml | 312 +++++++++++++++++++++++++++
 README.md                            |   2 +
 2 files changed, 314 insertions(+)
 create mode 100644 .github/workflows/cd-hcp-static.yaml

diff --git a/.github/workflows/cd-hcp-static.yaml b/.github/workflows/cd-hcp-static.yaml
new file mode 100644
index 0000000..6f9f29c
--- /dev/null
+++ b/.github/workflows/cd-hcp-static.yaml
@@ -0,0 +1,312 @@
+name: CD — HCP static site
+
+# Reusable CloudFront/S3 CD for unfingerprinted static sites. The caller owns
+# triggers and passes `environment` as a `with:` input. This job owns
+# `environment:`, concurrency, OIDC, and `vars.DEPLOY_ROLE_ARN`. GitHub
+# rejects `environment:` beside `uses:`.
+#
+# Assets are not content-hashed, so they get a one-day cache. HTML, XML, and
+# text get no-cache. Do not point a hashed SPA at this workflow.
+#
+# Caller example:
+#   jobs:
+#     deploy-prod:
+#       uses: Sea-Haven-Industries/.github/.github/workflows/cd-hcp-static.yaml@<sha> # vX.Y.Z
+#       permissions: { contents: read, id-token: write }
+#       secrets: inherit
+#       with:
+#         environment: prod
+#         ref: ${{ inputs.ref }}
+#         ssm-prefix: /seahaven-site/deploy
+#         required-paths: _site/index.html,_site/contact/index.html,_site/404.html
+#         min-file-count: 40
+#         ship-gate: true
+#
+# Nothing here creates an HCP run. Terraform owns the bucket and distribution.
+
+on:
+  workflow_call:
+    inputs:
+      environment:
+        description: "GitHub Environment to deploy to (dev, staging, prod)"
+        type: string
+        required: true
+      ref:
+        description: "Git ref to build. Empty means github.sha."
+        type: string
+        required: false
+        default: ""
+      ssm-prefix:
+        description: "SSM prefix for deploy parameters (e.g. /seahaven-site/deploy)"
+        type: string
+        required: true
+      ship-gate:
+        description: "Require the ref to be on main or a legal hotfix/release tag"
+        type: boolean
+        required: false
+        default: false
+      output-dir:
+        description: "Build output directory"
+        type: string
+        required: false
+        default: "_site"
+      required-paths:
+        description: "Comma-separated repo-relative files that must exist after the build"
+        type: string
+        required: false
+        default: ""
+      min-file-count:
+        description: "Minimum file count under output-dir. Zero skips the count check."
+        type: number
+        required: false
+        default: 1
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  deploy:
+    name: Deploy static site to ${{ inputs.environment }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    environment: ${{ inputs.environment }}
+    concurrency:
+      group: deploy-${{ inputs.ssm-prefix }}-${{ inputs.environment }}
+      cancel-in-progress: false
+    env:
+      AWS_REGION: us-east-1
+      DEPLOY_ROLE_ARN: ${{ vars.DEPLOY_ROLE_ARN }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ inputs.ref != '' && inputs.ref || github.sha }}
+          persist-credentials: false
+          fetch-tags: true
+
+      - name: Resolve commit
+        id: commit
+        run: |
+          set -euo pipefail
+          sha="$(git rev-parse HEAD)"
+          echo "sha=${sha}" >> "${GITHUB_OUTPUT}"
+          echo "Building ${sha}"
+
+      - name: Ship-gate
+        if: ${{ inputs.ship-gate }}
+        env:
+          GH_TOKEN: ${{ github.token }}
+          REPO: ${{ github.repository }}
+          INPUT_REF: ${{ inputs.ref != '' && inputs.ref || github.sha }}
+          ENVIRONMENT: ${{ inputs.environment }}
+          HEAD_SHA: ${{ steps.commit.outputs.sha }}
+        run: |
+          set -euo pipefail
+
+          status="$(gh api "repos/${REPO}/compare/main...${INPUT_REF}" --jq .status)"
+          if [ "${status}" = "behind" ] || [ "${status}" = "identical" ]; then
+            echo "ship-gate: ${INPUT_REF} is ${status} relative to main"
+            exit 0
+          fi
+
+          echo "ship-gate: ${INPUT_REF} is not on main (compare status: ${status}); checking hotfix/release path"
+
+          TAG="${INPUT_REF}"
+          if [[ ! "${TAG}" =~ ^v ]]; then
+            TAG="$(git describe --tags --exact-match "${HEAD_SHA}" 2>/dev/null || true)"
+          fi
+
+          if [ "${ENVIRONMENT}" = "staging" ]; then
+            PATTERN='^v[0-9]+\.[0-9]+\.[0-9]+-staging$'
+          else
+            PATTERN='^v[0-9]+\.[0-9]+\.[0-9]+$'
+          fi
+
+          if [[ -z "${TAG}" ]] || [[ ! "${TAG}" =~ ${PATTERN} ]]; then
+            echo "ship-gate: ref ${INPUT_REF} (tag ${TAG:-none}) does not match ${PATTERN} for environment ${ENVIRONMENT} and is not on main" >&2
+            exit 1
+          fi
+
+          export PATTERN TAG
+          PREV="$(
+            gh api "repos/${REPO}/releases" --paginate --jq '.[].tag_name' | python3 -c '
+          import os, re, sys
+          pattern = re.compile(os.environ["PATTERN"])
+          current = os.environ["TAG"]
+          tags = [
+              line.strip()
+              for line in sys.stdin
+              if pattern.fullmatch(line.strip()) and line.strip() != current
+          ]
+          def key(tag):
+              body = tag[1:]
+              core = body.split("-", 1)[0]
+              return tuple(int(part) for part in core.split("."))
+          tags.sort(key=key)
+          print(tags[-1] if tags else "")
+          '
+          )"
+
+          if [ -z "${PREV}" ]; then
+            echo "ship-gate: no previous matching release tag; hotfix path requires a prior ${PATTERN} release" >&2
+            exit 1
+          fi
+
+          ff_status="$(gh api "repos/${REPO}/compare/${PREV}...${TAG}" --jq .status)"
+          if [ "${ff_status}" != "ahead" ]; then
+            echo "ship-gate: ${TAG} is not a fast-forward of ${PREV} (status: ${ff_status})" >&2
+            exit 1
+          fi
+
+          from_train=false
+          TARGET_COMMITISH="$(gh api "repos/${REPO}/releases/tags/${TAG}" --jq .target_commitish 2>/dev/null || true)"
+          if [[ "${TARGET_COMMITISH}" == hotfix/* || "${TARGET_COMMITISH}" == release/* ]]; then
+            from_train=true
+          fi
+
+          if [ "${from_train}" = false ]; then
+            git fetch origin '+refs/heads/hotfix/*:refs/remotes/origin/hotfix/*' '+refs/heads/release/*:refs/remotes/origin/release/*' || true
+            if git branch -r --contains "${HEAD_SHA}" | grep -Eq 'origin/(hotfix|release)/'; then
+              from_train=true
+            fi
+          fi
+
+          if [ "${from_train}" = false ]; then
+            echo "ship-gate: ${TAG} was not created from hotfix/* or release/* (target_commitish=${TARGET_COMMITISH:-none})" >&2
+            exit 1
+          fi
+
+          echo "ship-gate: hotfix/release path accepted (${PREV} -> ${TAG} from ${TARGET_COMMITISH:-branch})"
+
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version: "24"
+          cache: npm
+
+      - name: Build site
+        env:
+          OUTPUT_DIR: ${{ inputs.output-dir }}
+          REQUIRED_PATHS: ${{ inputs.required-paths }}
+          MIN_FILE_COUNT: ${{ inputs.min-file-count }}
+        run: |
+          set -euo pipefail
+          npm ci --ignore-scripts
+          npm run build
+          python3 - <<'PY'
+          import os, sys
+          output_dir = os.environ["OUTPUT_DIR"]
+          if not os.path.isdir(output_dir):
+              print(f"build did not produce {output_dir}", file=sys.stderr)
+              sys.exit(1)
+          missing = []
+          for raw in os.environ.get("REQUIRED_PATHS", "").split(","):
+              path = raw.strip()
+              if path and not os.path.isfile(path):
+                  missing.append(path)
+          if missing:
+              print("missing required build files: " + ", ".join(missing), file=sys.stderr)
+              sys.exit(1)
+          count = 0
+          for _root, _dirs, files in os.walk(output_dir):
+              count += len(files)
+          minimum = int(os.environ["MIN_FILE_COUNT"])
+          if minimum > 0 and count < minimum:
+              print(f"build produced only {count} files (expected >= {minimum})", file=sys.stderr)
+              sys.exit(1)
+          index = os.path.join(output_dir, "index.html")
+          if not os.path.isfile(index):
+              print(f"missing {index}", file=sys.stderr)
+              sys.exit(1)
+          print(f"Build OK: {count} files.")
+          PY
+          index_sha="$(python3 -c 'import hashlib,os,pathlib; print(hashlib.sha256(pathlib.Path(os.environ["OUTPUT_DIR"], "index.html").read_bytes()).hexdigest())')"
+          echo "INDEX_SHA256=${index_sha}" >> "${GITHUB_ENV}"
+          echo "${OUTPUT_DIR}/index.html sha256=${index_sha}"
+
+      - name: Configure AWS credentials using OIDC
+        uses: aws-actions/configure-aws-credentials@cbe3b392738ccf3f987d68400dafcf4b0624a56c # v6.2.4
+        with:
+          role-to-assume: ${{ env.DEPLOY_ROLE_ARN }}
+          aws-region: us-east-1
+          audience: sts.amazonaws.com
+
+      - name: Get deploy parameters
+        id: deploy
+        env:
+          SSM_PREFIX: ${{ inputs.ssm-prefix }}
+        run: |
+          set -euo pipefail
+          prefix="${SSM_PREFIX%/}"
+          BUCKET=$(aws ssm get-parameter --name "${prefix}/bucket" --query Parameter.Value --output text)
+          DIST_ID=$(aws ssm get-parameter --name "${prefix}/distribution-id" --query Parameter.Value --output text)
+          DOMAIN=$(aws cloudfront get-distribution --id "${DIST_ID}" --query Distribution.DomainName --output text)
+          origin_paths="$(aws cloudfront get-distribution --id "${DIST_ID}" \
+            --query 'Distribution.DistributionConfig.Origins.Items[].OriginPath' --output text | tr -d '[:space:]')"
+          if [ -n "${origin_paths}" ]; then
+            echo "Distribution ${DIST_ID} still has a non-empty origin path (${origin_paths})." >&2
+            echo "Wait for the HCP apply that moves the origin to the bucket root, then re-run." >&2
+            exit 1
+          fi
+          {
+            echo "bucket=${BUCKET}"
+            echo "distribution_id=${DIST_ID}"
+            echo "site_url=https://${DOMAIN}"
+          } >> "${GITHUB_OUTPUT}"
+
+      - name: Sync build output to the bucket root
+        env:
+          SITE_BUCKET: ${{ steps.deploy.outputs.bucket }}
+          OUTPUT_DIR: ${{ inputs.output-dir }}
+        run: |
+          set -euo pipefail
+          aws s3 sync "${OUTPUT_DIR}/" "s3://${SITE_BUCKET}/" --no-progress \
+            --exclude "*.html" --exclude "*.xml" --exclude "*.txt" \
+            --cache-control "public, max-age=86400"
+          aws s3 sync "${OUTPUT_DIR}/" "s3://${SITE_BUCKET}/" --no-progress \
+            --exclude "*" --include "*.html" --include "*.xml" --include "*.txt" \
+            --cache-control "no-cache"
+          aws s3 sync "${OUTPUT_DIR}/" "s3://${SITE_BUCKET}/" --no-progress --delete
+          aws s3api head-object --bucket "${SITE_BUCKET}" --key index.html
+
+      - name: Invalidate CloudFront
+        env:
+          DISTRIBUTION_ID: ${{ steps.deploy.outputs.distribution_id }}
+        run: |
+          set -euo pipefail
+          invalidation_id="$(aws cloudfront create-invalidation \
+            --distribution-id "${DISTRIBUTION_ID}" \
+            --paths "/*" \
+            --query Invalidation.Id --output text)"
+          echo "Invalidation ${invalidation_id} created; waiting"
+          aws cloudfront wait invalidation-completed \
+            --distribution-id "${DISTRIBUTION_ID}" \
+            --id "${invalidation_id}"
+
+      - name: Verify served release
+        env:
+          DISTRIBUTION_ID: ${{ steps.deploy.outputs.distribution_id }}
+          SITE_URL: ${{ steps.deploy.outputs.site_url }}
+          EXPECTED_INDEX_SHA256: ${{ env.INDEX_SHA256 }}
+        run: |
+          set -euo pipefail
+          SITE_URL="${SITE_URL%/}"
+          sha256_of() {
+            python3 -c "import hashlib,sys; print(hashlib.sha256(sys.stdin.buffer.read()).hexdigest())"
+          }
+          last_status="Unknown"
+          last_hash="Unknown"
+          for attempt in $(seq 1 40); do
+            last_status="$(aws cloudfront get-distribution --id "${DISTRIBUTION_ID}" --query Distribution.Status --output text)"
+            if last_hash="$(curl -fsS --max-time 30 "${SITE_URL}/" | sha256_of)" && [ -n "${last_hash}" ]; then
+              :
+            else
+              last_hash="unreachable"
+            fi
+            echo "poll ${attempt}/40: status=${last_status} served_sha256=${last_hash}"
+            if [ "${last_status}" = "Deployed" ] && [ "${last_hash}" = "${EXPECTED_INDEX_SHA256}" ]; then
+              exit 0
+            fi
+            sleep 15
+          done
+          echo "release did not converge: status=${last_status} served_sha256=${last_hash} expected=${EXPECTED_INDEX_SHA256}" >&2
+          exit 1
diff --git a/README.md b/README.md
index 30ee3da..56181aa 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,8 @@ The formatter GitHub App is not on the main-branch bypass list.
 
 **`.github/workflows/cd-hcp-spa.yaml`** — HCP SPA CD. Checkout at `ref`, Node 24, `npm ci` + `npm run build`, origin-path guard, hashed s3 sync then `index.html` last then prune, invalidate, verify. Build env comes from the GitHub Environment (`vars.VITE_*`, `secrets.SENTRY_AUTH_TOKEN`).
 
+**`.github/workflows/cd-hcp-static.yaml`** — HCP static-site CD for unfingerprinted builds such as Eleventy. Checkout at `ref`, Node 24, `npm ci --ignore-scripts` + `npm run build`, one-day cache on assets, `no-cache` on HTML/XML/text, prune, invalidate, verify the served index hash. Reads `/<prefix>/bucket` and `/<prefix>/distribution-id`. Do not use this for a hashed SPA.
+
 **`.github/workflows/cd-sam.yaml`** — Reusable CD workflow for SAM repos. Runs `sam build` + `sam deploy` with OIDC credentials and a CloudFormation execution role. Triggers via `workflow_call` from per-repo `deploy.yaml` on push to `main`.
 
 **`.github/workflows/cd-cdk.yaml`** — Reusable CD workflow for CDK repos (TypeScript and Python). Runs `cdk deploy --all` with OIDC credentials. Supports optional Python setup for Python CDK repos and QEMU emulation for cross-platform Docker builds.