mqtt/connected
mqtt/disconnected
mqtt/subscribed
mqtt/unsubscribed
mqtt/publish
mqtt/invaliduser
mqtt/invalidpassword
USE_POSTGRES
POSTGRES_CONNECTION_STRING
USE_REDIS
USE_REDIS_QUEUE
PUBLISH_REDIS_PUBSUB
PUBLISH_REDIS_QUEUE
REDIS_DEFAULT_CHANNEL
REDIS_CONNECTION_STRING
USE_UI
USE_CERT
X509_CERTIFICATE_PATH
CERT_PEM_PATH
KEY_PEM_PATH