From dc9c718669c759d828e8850b5e981ccec50883bf Mon Sep 17 00:00:00 2001
From: Leo Huang <klhftco@berkeley.edu>
Date: Tue, 3 Dec 2024 19:20:49 -0800
Subject: [PATCH] CICID: Limit Dev Deployments (#746)

* n deployment limit added to cd-dev.yaml
* remove dependency on build-push
* attempt no deployment fix
* debugging
* fixed grep returning 1
* Update to use helm list and helm uninstall
* simplify
---
 .github/workflows/cd-dev.yaml | 36 ++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/cd-dev.yaml b/.github/workflows/cd-dev.yaml
index ebdf1d214..ead0c87f9 100644
--- a/.github/workflows/cd-dev.yaml
+++ b/.github/workflows/cd-dev.yaml
@@ -37,7 +37,7 @@ jobs:
       image_tag: ${{ needs.compute-sha.outputs.sha_short }}
       chart_ver: 0.1.0-dev.${{ needs.compute-sha.outputs.sha_short }}
     secrets: inherit
-
+            
   deploy:
     name: SSH and Deploy
     needs: [compute-sha, build-push]
@@ -59,3 +59,37 @@ jobs:
         mongoUri: mongodb://bt-dev-mongo-mongodb.bt.svc.cluster.local:27017/bt
         redisUri: redis://bt-dev-redis-master.bt.svc.cluster.local:6379
     secrets: inherit
+
+  limit-deploy:
+    name: SSH and Limit Deployments
+    needs: [deploy]
+    runs-on: ubuntu-latest
+    steps:
+      - name: SSH and Check Deployments
+        uses: appleboy/ssh-action@v1.2.0
+        with:
+          host: ${{ secrets.SSH_HOST }}
+          username: ${{ secrets.SSH_USERNAME }}
+          key: ${{ secrets.SSH_KEY }}
+          script: |
+            set -e  # Exit immediately if a command fails
+
+            # Get bt-dev-app- deployments sorted by creation timestamp
+            deployments=$(helm list \
+              --namespace=bt \
+              --date \
+              --short | grep '^bt-dev-app') || true
+            deployment_count=$(echo "$deployments" | wc -l)
+
+            # Check if deployment count > 8
+            if [ "$deployment_count" -gt 8 ]; then
+              echo "Too many deployments. Deleting the oldest deployment."
+
+              # Get oldest deployment from first line of deployments
+              oldest_deployment=$(echo "$deployments" | head -n 1)
+
+              # Uninstall deployment
+              helm uninstall "${oldest_deployment}"
+            else
+              echo "Deployment count is <= 8."
+            fi