From eae76e12b942527e142957f23f1393d3f2af00d8 Mon Sep 17 00:00:00 2001
From: Russ Allbery <rra@lsst.org>
Date: Mon, 27 Jul 2026 15:48:51 -0700
Subject: [PATCH] Send Slack notification on GHCR cleanup failure

The periodic GHCR cleanup job is otherwise entirely silent. Send a
notification if it fails.
---
 .../example-uws/.github/workflows/ghcr-cleanup.yaml   | 10 ++++++++++
 .../example/.github/workflows/ghcr-cleanup.yaml       | 10 ++++++++++
 .../.github/workflows/ghcr-cleanup.yaml               | 11 +++++++++++
 project_templates/technote_md/testn-000/technote.toml |  2 +-
 .../technote_rst/testn-000/technote.toml              |  2 +-
 5 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/project_templates/fastapi_safir_app/example-uws/.github/workflows/ghcr-cleanup.yaml b/project_templates/fastapi_safir_app/example-uws/.github/workflows/ghcr-cleanup.yaml
index 412004c7..c60f46b8 100644
--- a/project_templates/fastapi_safir_app/example-uws/.github/workflows/ghcr-cleanup.yaml
+++ b/project_templates/fastapi_safir_app/example-uws/.github/workflows/ghcr-cleanup.yaml
@@ -25,3 +25,13 @@ jobs:
           delete-untagged: true
           older-than: "6 months"
           validate: true
+
+      - name: Report status
+        if: failure()
+        uses: ravsamhq/notify-slack-action@v2
+        with:
+          status: ${{ job.status }}
+          notify_when: "failure"
+          notification_title: "GHCR cleanup for {repo} failed"
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_ALERT_WEBHOOK }}
diff --git a/project_templates/fastapi_safir_app/example/.github/workflows/ghcr-cleanup.yaml b/project_templates/fastapi_safir_app/example/.github/workflows/ghcr-cleanup.yaml
index 412004c7..c60f46b8 100644
--- a/project_templates/fastapi_safir_app/example/.github/workflows/ghcr-cleanup.yaml
+++ b/project_templates/fastapi_safir_app/example/.github/workflows/ghcr-cleanup.yaml
@@ -25,3 +25,13 @@ jobs:
           delete-untagged: true
           older-than: "6 months"
           validate: true
+
+      - name: Report status
+        if: failure()
+        uses: ravsamhq/notify-slack-action@v2
+        with:
+          status: ${{ job.status }}
+          notify_when: "failure"
+          notification_title: "GHCR cleanup for {repo} failed"
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_ALERT_WEBHOOK }}
diff --git a/project_templates/fastapi_safir_app/{{cookiecutter.name}}/.github/workflows/ghcr-cleanup.yaml b/project_templates/fastapi_safir_app/{{cookiecutter.name}}/.github/workflows/ghcr-cleanup.yaml
index 412004c7..a26f82bc 100644
--- a/project_templates/fastapi_safir_app/{{cookiecutter.name}}/.github/workflows/ghcr-cleanup.yaml
+++ b/project_templates/fastapi_safir_app/{{cookiecutter.name}}/.github/workflows/ghcr-cleanup.yaml
@@ -25,3 +25,14 @@ jobs:
           delete-untagged: true
           older-than: "6 months"
           validate: true
+{% if cookiecutter.github_org == "lsst-sqre" %}
+      - name: Report status
+        if: failure()
+        uses: ravsamhq/notify-slack-action@v2
+        with:
+          status: {{ "${{ job.status }}" }}
+          notify_when: "failure"
+          notification_title: "GHCR cleanup for {repo} failed"
+        env:
+          SLACK_WEBHOOK_URL: {{ "${{ secrets.SLACK_ALERT_WEBHOOK }}" }}
+{%- endif %}
diff --git a/project_templates/technote_md/testn-000/technote.toml b/project_templates/technote_md/testn-000/technote.toml
index bbe8d0f0..3fe83766 100644
--- a/project_templates/technote_md/testn-000/technote.toml
+++ b/project_templates/technote_md/testn-000/technote.toml
@@ -4,7 +4,7 @@ series_id = "TESTN"
 canonical_url = "https://testn-000.lsst.io"
 github_url = "https://github.com/lsst/testn-000"
 github_default_branch = "main"
-date_created = 2026-07-24T17:58:10Z
+date_created = 2026-07-27T22:49:18Z
 organization.name = "NSF-DOE Vera C. Rubin Observatory"
 organization.ror = "https://ror.org/048g3cy84"
 license.id = "CC-BY-4.0"
diff --git a/project_templates/technote_rst/testn-000/technote.toml b/project_templates/technote_rst/testn-000/technote.toml
index eaeba3c4..78cae593 100644
--- a/project_templates/technote_rst/testn-000/technote.toml
+++ b/project_templates/technote_rst/testn-000/technote.toml
@@ -4,7 +4,7 @@ series_id = "TESTN"
 canonical_url = "https://testn-000.lsst.io"
 github_url = "https://github.com/lsst/testn-000"
 github_default_branch = "main"
-date_created = 2026-07-24T17:58:10Z
+date_created = 2026-07-27T22:49:18Z
 organization.name = "NSF-DOE Vera C. Rubin Observatory"
 organization.ror = "https://ror.org/048g3cy84"
 license.id = "CC-BY-4.0"