tweak CI

.github/workflows/publish-ecr.yaml

@@ -2,10 +2,17 @@ name: Publish to ECR
 on:
   push:
     tags: ['*']
+    branches-ignore:
+      - timescale # This is how our main branch is called.
+
+env:
+  ALL_OS: ${{ vars.ALL_OS }}
+  ALL_ARCH_linux: ${{ vars.ALL_ARCH_LINUX }}
+
 jobs:
   ecr-private:
     name: Push to ECR Private
-    runs-on: ubuntu-latest
+    runs-on: non-prod
     steps:
     - name: Checkout
       uses: actions/checkout@v3
@@ -42,8 +49,9 @@ jobs:
       run: make -j `nproc` all-push
 
   ecr-public:
+    if: ${{ vars.SKIP_ECR_PUBLIC != 'true' }}
     name: Push to ECR Public
-    runs-on: ubuntu-latest
+    runs-on: non-prod
     environment: ecr-public
     needs: ecr-private