Reduced the number of validators in the Local Kube tests to 1.

.github/workflows/docker_image.yml

@@ -54,7 +54,7 @@ jobs:
             -t ${{ env.DOCKER_IMAGE }}:${{ env.BRANCH_NAME }} \
             -t ${{ env.DOCKER_IMAGE }}:${{ env.GIT_COMMIT_SHORT }} \
             -t ${{ env.DOCKER_IMAGE }}:${{ env.GIT_COMMIT_LONG }}
-
+          docker run --rm linera ./linera --version
       - name: Push Docker image to Google Artifact Registry
         run: |
           docker push ${{ env.DOCKER_IMAGE }}:${{ env.BRANCH_NAME }}

.github/workflows/kubernetes.yml

@@ -0,0 +1,96 @@
+name: Kubernetes
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches:
+      - "**"
+    paths:
+      - '.github/workflows/kubernetes.yml'
+      - 'toolchains/**'
+      - 'configuration/**'
+      - 'docker/**'
+      - 'kubernetes/**'
+      - 'linera-service/**'
+      - 'linera-rpc/**'
+  workflow_dispatch:
+
+# This allows a subsequently queued workflow run to interrupt previous runs on pull-requests
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.run_id }}'
+  cancel-in-progress: true
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+  CARGO_NET_RETRY: 10
+  RUST_BACKTRACE: short
+  RUSTFLAGS: "-D warnings"
+  RUSTUP_MAX_RETRIES: 10
+  LINERA_TRY_RELEASE_BINARIES: "true"
+
+permissions:
+  contents: read
+
+jobs:
+  kind-deployment-e2e-tests:
+    runs-on: ubuntu-latest-16-cores
+    timeout-minutes: 90
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - name: Install Protoc
+        uses: arduino/setup-protoc@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build client binary
+        run: |
+          cargo build --release --locked --bin linera --bin linera-proxy --bin linera-server --features scylladb,rocksdb,kubernetes,metrics
+          strip target/release/linera
+          strip target/release/linera-proxy
+          strip target/release/linera-server
+      - name: Setup helmfile
+        uses: mamezou-tech/[email protected]
+      - name: Run e2e tests
+        uses: nick-fields/retry@v2
+        with:
+          # Port forwarding sometimes dies, which makes all requests timeout
+          # Which is why we need retries
+          max_attempts: 1
+          timeout_minutes: 20
+          command: |
+            kind get clusters | xargs -I {} kind delete cluster --name {}
+            RUST_LOG=linera=info cargo test --locked -p linera-service --features scylladb,kubernetes --test linera_net_tests -- kubernetes --nocapture
+      - name: Setup upterm session
+        uses: lhotari/action-upterm@v1
+        if: ${{ failure() }}
+        with:
+          wait-timeout-minutes: 120
+      - name: Port forward Prometheus
+        run: |
+          kubectl port-forward prometheus-linera-core-kube-prometheu-prometheus-0 9090 &
+      - name: Check Proxy metric
+        # Check one random proxy metric that we expect to be logged after running the e2e tests
+        run: |
+          curl -s 'http://127.0.0.1:9090/api/v1/query?query=linera_proxy_request_latency_bucket' | jq -r '.data.result[]' | grep -q .
+      - name: Check Server metric
+        # Check one random server metric that we expect to be logged after running the e2e tests
+        run: |
+          curl -s 'http://127.0.0.1:9090/api/v1/query?query=linera_server_request_latency_bucket' | jq -r '.data.result[]' | grep -q .
+      - name: Check Scylla metric
+        # Check one random server metric that we expect to be logged after running the e2e tests
+        run: |
+          curl -s 'http://127.0.0.1:9090/api/v1/query?query=scylla_database_total_reads' | jq -r '.data.result[]' | grep -q .
+      - name: Check Scylla Manager metric
+        # Check one random server metric that we expect to be logged after running the e2e tests
+        run: |
+          curl -s 'http://127.0.0.1:9090/api/v1/query?query=scylla_manager_agent_rclone_bytes_transferred_total' | jq -r '.data.result[]' | grep -q .
+      - name: Destroy the kind clusters
+        if: always()
+        shell: bash
+        run: >-
+          kind get clusters | xargs -I {} kind delete cluster --name {}

docker/Dockerfile

@@ -21,7 +21,7 @@ ARG target=x86_64-unknown-linux-gnu
 ARG binaries=
 ARG copy=${binaries:+_copy}
 
-FROM rust:1.74-slim-bookworm AS builder
+FROM rust:1.81-slim-bookworm AS builder
 ARG git_commit
 ARG target
 

linera-service/src/cli_wrappers/local_kubernetes_net.rs

@@ -97,7 +97,7 @@ impl SharedLocalKubernetesNetTestingConfig {
             testing_prng_seed: Some(37),
             num_other_initial_chains: 2,
             initial_amount: Amount::from_tokens(2000),
-            num_initial_validators: 4,
+            num_initial_validators: 1,
             num_shards: 4,
             binaries,
             no_build: false,