All the new HA environment variables should be added in the image.yaml file descriptor which supports these envs.
The envs are:

APPFORMER_ELASTIC_CLUSTER_NAME
APPFORMER_ELASTIC_HOST
APPFORMER_ELASTIC_PORT
APPFORMER_ELASTIC_RETRIES
APPFORMER_JMS_BROKER_ADDRESS
APPFORMER_JMS_BROKER_PASSWORD
APPFORMER_JMS_BROKER_PORT
APPFORMER_JMS_BROKER_USER
APPFORMER_JMS_CONNECTION_PARAMS