Wait till we detect an ipv4 on droplet

Author: olethanh

.github/scripts/extract_droplet_ipv4.py

@@ -11,5 +11,6 @@
     droplet_info = json.load(sys.stdin)
     print(droplet_info[0]["networks"]["v4"][0]["ip_address"])
 except Exception:
-    print(droplet_info)
+    print("Failed to find ipv4:", file=sys.stderr)
+    print(json.dumps(droplet_info, indent=4), file=sys.stderr)
     raise

.github/workflows/build-deb-package.yml

@@ -179,6 +179,7 @@ jobs:
 
       - name: Get droplet ip and export it in env
         run: |
+          until ${doctl compute droplet get aleph-vm-ci-${{ matrix.os_config.alias }}-${{ matrix.check_vm.alias }} --output json | ./.github/scripts/extract_droplet_ipv4.py)}; do sleep 1; done
           echo "DROPLET_IPV4=$(doctl compute droplet get aleph-vm-ci-${{ matrix.os_config.alias }}-${{ matrix.check_vm.alias }} --output json | ./.github/scripts/extract_droplet_ipv4.py)" >>  "$GITHUB_ENV"
 
       - name: Wait for the system to setup and boot