Update azure-pipelines.yml for Azure Pipelines

Author: jgebal

azure-pipelines.yml

@@ -80,14 +80,16 @@ steps:
     displayName: 'Download utPLSQL'
 
   - bash: |
-      if [[ -f "$(CACHE_DIR)/${ORACLE_VERSION}.tar" ]]; then
-        time docker load -i $(CACHE_DIR)/${ORACLE_VERSION}.tar
+      ls -ltr $(CACHE_DIR) 
+      if [[ -f "$(CACHE_DIR)/${ORACLE_VERSION}.tar.gz" ]]; then
+        # load docker image from cache
+        time docker load -i $(CACHE_DIR)/${ORACLE_VERSION}.tar.gz
       else
-        ls -ltr $(CACHE_DIR)
         docker login -u $(DOCKER_USER) -p $(DOCKER_PASSWORD)
         # download Oracle Database docker image from private repo and start the DB
         time docker pull ${DOCKHER_HUB_REPO}:${ORACLE_VERSION}
-        time docker save -o $(CACHE_DIR)/${ORACLE_VERSION}.tar ${DOCKHER_HUB_REPO}:${ORACLE_VERSION}
+        # save pulled image into cache
+        time docker save ${DOCKHER_HUB_REPO}:${ORACLE_VERSION} | | gzip -c > $(CACHE_DIR)/${ORACLE_VERSION}.tar.gz
         ls -ltr $(CACHE_DIR)
       fi
       # start the docker container (DB)