Add and configure soak tests workflow (#3404)

* Add and configure soak tests workflow

* Update soak tests workflow

Author: Supreeth095

.github/workflows/soak-tests.yml

@@ -0,0 +1,38 @@
+name: Soak Tests
+
+on:
+  workflow_dispatch: {}
+  schedule:
+    - cron: "0 3 * * *" # every night
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  integration-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout latest commit in the PR
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # refs/tags/v4.1.7
+      - name: Set up Go
+        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # refs/tags/v5.5.0
+        with:
+          go-version: "1.24"
+      - name: Set up tools
+        run: |
+          # Install ginkgo version from go.mod
+          go install -mod=mod github.com/onsi/ginkgo/v2/ginkgo
+          curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
+          sudo mv /tmp/eksctl /usr/local/bin/
+      - name: Set up AWS credentials
+        uses: aws-actions/configure-aws-credentials@5579c002bb4778aa43395ef1df492868a9a1c83f # refs/tags/v4.0.2
+        with:
+          role-to-assume: ${{ secrets.OSS_TEST_ROLE_ARN }}
+          role-duration-seconds: 14400 # 4 hours
+          aws-region: us-west-2
+      - name: Run soak tests
+        run: |
+          RUN_CNI_INTEGRATION_TESTS=false RUN_UBUNTU_TEST=true ./scripts/run-integration-tests.sh
+        env:
+          AWS_DEFAULT_REGION: us-west-2

scripts/README.md

@@ -21,6 +21,7 @@ The following tests are valid to run, and setting the respective environment var
 3. Performance Tests - `RUN_PERFORMANCE_TESTS`
 4. KOPS Tests - `RUN_KOPS_TEST`
 5. Bottlerocket Tests - `RUN_BOTTLEROCKET_TEST`
+6. CNI Soak Tests with Ubuntu AMI - `RUN_UBUNTU_TEST`
 
 Example for running performance tests:
 ```