[skip ci] ci: minor improvements (#257)

Author: 4eUeP

.github/workflows/ci.yaml

@@ -73,9 +73,11 @@ jobs:
 
       - run: ./gradlew spotlessJavaCheck
 
-      - run: docker compose -f ../../assets/quick-start.yaml up -d
-
-      - run: sleep 30
+      - name: Start cluster
+        run: |
+          docker compose -f ../../assets/quick-start.yaml up -d
+          sleep 5
+          ../../wait_hserver.sh
 
       - run: ./gradlew run
 
@@ -118,7 +120,8 @@ jobs:
       - name: Start cluster
         run: |
           docker compose -f ./assets/quick-start.yaml up -d
-          sleep 30
+          sleep 5
+          ./wait_hserver.sh
 
       - name: Run examples
         run: |

wait_hserver.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -e
+
+timeout=120
+container_name=wait_hserver
+
+docker run -td --rm --name $container_name --network host hstreamdb/hstream bash
+until (docker exec -t wait_hserver hadmin server --port 6570 status); do
+    >&2 echo "Waiting for 127.0.0.1:6570 ..."
+    sleep 1
+    timeout=$((timeout - 1))
+    [ $timeout -le 0 ] && echo "Timeout!" && docker kill $container_name && exit 1;
+done
+docker kill $container_name