Merge pull request #2 from DaveW-STFC/check_pr_copies

New workflow to detect if charts match

.github/workflows/pr_copied_files.yaml

@@ -0,0 +1,64 @@
+name: CI Copied Files Check
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  changed_files:
+    runs-on: ubuntu-latest
+    name: Test changed-files
+    outputs:
+      check_result: ${{ steps.step1.outputs.result }}
+      any_changed: ${{ steps.changed-files.outputs.any_changed }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: check_pr_copies
+      - name: Get changed files in specific repo folders
+        id: changed-files
+        uses: tj-actions/changed-files@v45
+        with:
+          files: |
+            charts/staging/**
+            charts/prod/**
+          #  clusters/staging/**
+          #  clusters/prod/**
+          #  secrets/staging/**
+          #  secrets/prod**
+
+      - name: Run step if any file(s) in the folder change
+        id: step1
+        if: steps.changed-files.outputs.any_changed == 'true'
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
+        run: |
+          echo "One or more files in the folder has changed."
+          echo "Files that have changed: $ALL_CHANGED_FILES"
+          echo "result=true" >> "$GITHUB_OUTPUT"
+          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
+            res=$( sudo ./scripts/pr_check_copies.sh "$file" )
+            echo $res
+            if [ "$res" -eq 1 ]; then
+              echo "result=false" >> "$GITHUB_OUTPUT"
+              break;
+            fi
+          done
+
+  comment_pr:
+    needs: changed_files
+    if: ${{ contains(needs.changed_files.outputs.any_changed, 'true') }}
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/github-script@v7
+          if: contains(needs.changed_files.outputs.check_result, 'true')
+          with:
+            script: |
+              github.rest.issues.createComment({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                body: '👋 All files are an exact match to previous environment(s)'
+              })
+            

clusters/staging/management/apps.yaml

@@ -126,4 +126,4 @@ spec:
           selfHeal: true
           allowEmpty: true
         syncOptions:
-          - CreateNamespace=true
+          - CreateNamespace=true

scripts/pr_check_copies.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Script to check if the changed files to promote are a direct copy of earlier environment
+
+devEnv="dev"
+stagingEnv="staging"
+
+
+# Function to compare the files, file1 is our original file passed to the script followed by two possible further files
+compare_files() {
+    file1=$1
+    file2=$2
+    file3=$3
+
+    # Check the number of arguments passed to the function for comparison
+    if [ "$#" -eq 2 ]; then
+        if cmp -s "$file1" "$file2" ; then
+            echo $((0))
+        else
+            echo $((1))
+        fi
+    else
+        if cmp -s "$file1" "$file2" && cmp -s "$file1" "$file3"; then
+            echo $((0))
+        else
+            echo $((1))
+        fi
+    fi
+}
+
+# Check the file path to determine if it's from staging or prod folder
+# If it's staging we pass it along with a url to the file in dev folder.
+# If it's from prod we pass both the staging and dev file also for comparison
+path=$1
+if [[ $1 == *"staging"* ]] ; then
+    compare_files "$1" "${path/staging/"$devEnv"}"
+else
+    compare_files "$1" "${path/prod/"$stagingEnv"}" "${path/prod/"$devEnv"}"
+fi