fix: reenable kind 4epochs (#9699)

The problem with 4epochs turned out to be the mainframe spot reaper.
Added a keepalive tag.

.github/ensure-tester/action.yml

@@ -67,7 +67,7 @@ runs:
         ec2_subnet_id: subnet-4cfabd25
         ec2_security_group_id: sg-0ccd4e5df0dcca0c9
         ec2_key_name: "build-instance"
-        ec2_instance_tags: "[]"
+        ec2_instance_tags: '[{"Key": "Keep-Alive", "Value": "true"}]'
 
     - name: Print Startup Log
       shell: bash

.github/workflows/ci.yml

@@ -657,16 +657,45 @@ jobs:
         if: matrix.test == 'test-transfer.sh' || github.ref_name == 'master' || contains(github.event.pull_request.labels.*.name, 'network-all')
         run: sudo shutdown -P 60 ; earthly-ci --no-output ./yarn-project/+network-test --test=./${{ matrix.test }}
 
+  kind-smoke-test:
+    needs: [build, configure]
+    if: needs.configure.outputs.yarn-project == 'true' || github.ref_name == 'master'
+    runs-on: ${{ needs.configure.outputs.username }}-x86
+    steps:
+      - uses: actions/checkout@v4
+        with: { ref: "${{ env.GIT_COMMIT }}" }
+      - uses: ./.github/ci-setup-action
+        with:
+          concurrency_key: kind-network-test-${{ matrix.test }}
+      - name: Setup and KIND Network Test
+        timeout-minutes: 60
+        uses: ./.github/ensure-tester-with-images
+        env:
+          USERNAME: ${{ needs.configure.outputs.username }}
+        with:
+          runner_type: 8core-tester-x86
+          spot_strategy: None # use on-demand machines
+          builder_type: builder-x86
+          # these are copied to the tester and expected by the earthly command below
+          # if they fail to copy, it will try to build them on the tester and fail
+          builder_images_to_copy: aztecprotocol/aztec:${{ env.GIT_COMMIT }} aztecprotocol/end-to-end:${{ env.GIT_COMMIT }}
+          # command to produce the images in case they don't exist
+          builder_command: scripts/earthly-ci ./yarn-project+export-e2e-test-images
+          tester_ttl: 60
+          run: |
+            cd yarn-project/end-to-end
+            echo ${{ secrets.DOCKERHUB_PASSWORD }} | docker login -u aztecprotocolci --password-stdin
+            NAMESPACE=smoke FRESH_INSTALL=true VALUES_FILE=default.yaml ./scripts/network_test.sh ./src/spartan/smoke.test.ts
+
   # note: proving disabled
   kind-network-test:
     needs: [build, configure]
-    if: needs.configure.outputs.yarn-project == 'true' || github.ref_name == 'master'
+    if: contains(github.event.pull_request.labels.*.name, 'network-all') || github.ref_name == 'master'
     runs-on: ${{ needs.configure.outputs.username }}-x86
     strategy:
       fail-fast: false
       matrix:
-        # TODO(#9640): add transfer.test.ts and reorg.test.ts
-        test: [smoke.test.ts]
+        test: [transfer.test.ts, reorg.test.ts, 4epochs.test.ts]
     steps:
       - uses: actions/checkout@v4
         with: { ref: "${{ env.GIT_COMMIT }}" }
@@ -676,7 +705,6 @@ jobs:
       - name: Setup and KIND Network Test
         timeout-minutes: 60
         uses: ./.github/ensure-tester-with-images
-        if: contains(github.event.pull_request.labels.*.name, 'kind-network-all')
         env:
           USERNAME: ${{ needs.configure.outputs.username }}
         with:
@@ -689,12 +717,12 @@ jobs:
           # command to produce the images in case they don't exist
           builder_command: scripts/earthly-ci ./yarn-project+export-e2e-test-images
           tester_ttl: 60
-          # TODO(#9640): remove `|| true` and use 16-validators.yaml
+          # TODO(#9640): use 16-validators.yaml
           run: |
             cd yarn-project/end-to-end
             echo ${{ secrets.DOCKERHUB_PASSWORD }} | docker login -u aztecprotocolci --password-stdin
             test=${{ matrix.test }}
-            NAMESPACE="${test%.test.ts}" FRESH_INSTALL=true VALUES_FILE=default.yaml ./scripts/network_test.sh ./src/spartan/$test || true
+            NAMESPACE="${test%.test.ts}" FRESH_INSTALL=true VALUES_FILE=default.yaml ./scripts/network_test.sh ./src/spartan/$test
 
   l1-contracts-test:
     needs: [build, configure]