Wait for galaxy to come up before running tests

.travis.yml

@@ -22,6 +22,11 @@ install:
   # Use the Galaxy Docker image to test the role
   - docker run --name galaxy -d -p 8080:80 quay.io/bgruening/galaxy
 
+  # Wait for web server port to come up
+  - ansible localhost -c local -m wait_for -a "port=8080 delay=5 state=started timeout=150"
+
+  # Wait for Galaxy to respond
+  - ansible localhost -c local -m uri -a "url=http://localhost:8080/ register=result until='result.status[0] in [\"2\", \"3\"]' retries=50 delay=3 ignore_error=True"
 script:
   # Check the role works in the test playbook.
   - ansible-playbook -i "localhost," -c local -e galaxy_tools_galaxy_instance_url=http://127.0.0.1:8080 -e galaxy_runs_in_docker=yes -e galaxy_tools_api_key=admin test_playbook.yml