Update krew-index on release tag

Fixes #904

Signed-off-by: Tom Pantelis <[email protected]>

.github/workflows/post-release.yml

@@ -0,0 +1,30 @@
+---
+name: Post Release
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - 'v*.*.*'
+
+jobs:
+  update-krew:
+    name: Update krew-index
+    if: github.repository_owner == 'submariner-io'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get the latest release tag
+        run: |
+          RELEASE_JSON=$(curl -L \
+             -H "Accept: application/vnd.github+json" \
+             -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+             -H "X-GitHub-Api-Version: 2022-11-28" \
+             "${{ github.api_url }}/repos/submariner-io/releases/releases/latest")
+          echo "Latest release JSON: $RELEASE_JSON"
+          echo "LATEST_TAG=$(echo $RELEASE_JSON | jq -r .tag_name)" >> $GITHUB_ENV
+      - name: Print the latest release tag
+        run: |
+          echo "Latest release tag: $LATEST_TAG"
+      - name: Update new version in krew-index
+        if: ${{ github.ref_name == env.LATEST_TAG }}
+        uses: rajatjindal/[email protected]

.github/workflows/release.yml

@@ -37,6 +37,3 @@ jobs:
           RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
           GITHUB_JOB_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}/jobs/${{ github.job }}
         run: make do-release
-
-      - name: Update new version in krew-index
-        uses: rajatjindal/[email protected]