Debug API server

1. Figure out the docker that belongs to api server

docker ps | grep api

2. Remove the running API server docker container

docker rm -f DOCKER_ID

3. Run docker with a dummy entry point

docker run -itd --name config_api_1 --entrypoint sleep --net host --env-file  /etc/contrail/common_config.env opencontrailnightly/contrail-controller-config-api:latest 1000000

4. Log into docker

docker exec -it <DOCKER_ID> bash

5. run the entrypoint.sh which is under root

sh entrypoint.sh

6. Run the VNC server in foreground

/usr/bin/python /usr/bin/contrail-api --conf_file /etc/contrail/contrail-api.conf --conf_file /etc/contrail/contrail-keystone-auth.conf --worker_id 0

After this you can make changes to the file on docker,set debug points, stop and relaunch the vnc server process