Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -7,6 +7,7 @@ stages:
   - full_test
 
 variables:
+  DOCKER_HOST: tcp://docker:2375
   DOCKER_TLS_CERTDIR: ""
   EUSER: "appuser"
   EGID: "137"
@@ -25,6 +26,7 @@ run_full_automation:
   before_script:
     - apk add --no-cache curl bash jq zip bind-tools
     - echo "Checking DNS resolution..."
+    - nslookup docker || getent hosts docker
     - echo "Checking Docker client and daemon..."
     - docker version
     - until docker info > /dev/null 2>&1; do echo "Waiting for Docker daemon..."; sleep 3; done