Provide status information about OpenTOSCA components

[kleinech]

Current Behavior:
Starting OpenTOSCA inside docker containers on openstack vms takes up to 35min (wso2server.sh).
If the user starts provisioning new instances before all OpenTOSCA components are ready org.opentosca.container.connector.bps.BpsConnector.login fails.

Expected Behavior:
The user should be informed about the status of all OpenTOSCA components and provisioning new instances of applications must be blocked until all components are ready.

Steps to Reproduce:

1. ssh user@openstackVM
2. git clone https://github.com/OpenTOSCA/opentosca-dockerfiles.git && cd opentosca-dockerfiles
3. sudo docker-compose build
4. sudo docker-compose up
5. open :8088
6. Upload New Application
7. Provision New Instance
8. Error

Other Information:

• Possible Solution: Analyze log files StartupFinalizerServiceComponent - WSO2 Carbon started in 64 sec or test org.opentosca.container.connector.bps.BpsConnector.login
• Block Provision New Instance until all OpenTOSCA components are ready
• Additional: Test if components work properly (BSP server available + Docker-Container-component can create new container with dns working)

System Information:

• Openstack VM:
  • image: ubuntu-16.04-LTS-xenial-server-cloudimg
  • flavor: m1-lager( 8VCPUs, 16Gb RAM)