test forwards with round-robin nginx.

.github/actions/setup_databend_cluster/action.yml

@@ -34,7 +34,7 @@ runs:
       shell: bash
       run: |
         docker run -d --network host --name nginx-lb \
-        -v ${{ github.workspace }}/scripts/ci/nginx.conf:/etc/nginx/nginx.conf:ro \
+        -v ${{ github.workspace }}/scripts/ci/nginx_rr.conf:/etc/nginx/nginx.conf:ro \
         nginx
 
     - name: Download binary and extract into target directory

.github/workflows/test_cluster.yml

@@ -31,14 +31,28 @@ jobs:
       - uses: ./.github/actions/setup_databend_cluster
         timeout-minutes: 15
         with:
-          version: '1.2.629-nightly'
+          version: '1.2.647-nightly'
           target: 'x86_64-unknown-linux-gnu'
 
       - name: Test with conn to node 1
         run: mvn test -DexcludedGroups=FLAKY
         env:
           MAVEN_GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
 
+      - name: View Nginx logs
+        run: docker logs nginx-lb
+
+      - name: check nginx
+        run: |
+          curl -u 'databend:databend' -X POST "http://localhost:8010/v1/query" \
+          -H 'Content-Type: application/json' \
+          -d '{"sql": "select 1", "pagination": { "wait_time_secs": 5 }}' || true
+        env:
+          MAVEN_GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
+
+      - name: View Nginx logs
+        run: docker logs nginx-lb
+
       - name: Test with conn to nginx
         run: mvn test -DexcludedGroups=FLAKY
         env:

scripts/ci/nginx_rr.conf

@@ -0,0 +1,22 @@
+events {
+	worker_connections 1024;
+}
+
+http {
+	upstream backend {
+		server 127.0.0.1:8000;
+		server 127.0.0.1:8002;
+		server 127.0.0.1:8003;
+	}
+
+	server {
+		listen 8010;
+
+		location / {
+			proxy_pass http://backend;
+            proxy_set_header X-Databend-Relative-Path $http_x_databend_relative_path;
+            proxy_set_header X-Databend-Stage-Name $http_x_databend_stage_name;
+            proxy_set_header X-Databend-Sticky-Node $http_x_databend_sticky_node;
+		}
+	}
+}