Universal configuration variables
The tables in this section provide an overview of the serviced
configuration variables that apply to all Control Center hosts. Set
these variables as required for your environment or applications.
Role variable
| Variable |
Description |
| SERVICED_MASTER |
Assigns the role of a serviced instance, either master or delegate. The master runs the application services scheduler and other internal services. Delegates run the application services assigned to the resource pool to which they belong. |
Browser interface variable
| Variable |
Description |
| SERVICED_UI_PORT |
The port on which the HTTP server listens for requests. |
Networking variables
| Variable |
Description |
| SERVICED_STATIC_IPS |
A list of one or more static IP addresses for IP assignment. |
| SERVICED_OUTBOUND_IP |
The IP address of the network interface for serviced to use. When this variable is not set, serviced uses the IP address of the default network interface and assumes it has internet access. To prevent serviced from assuming it has internet access, set this variable. |
| SERVICED_VIRTUAL_ADDRESS_SUBNET |
The private network for containers that use virtual IP addresses. The default is 10.3.0.0/16, and the network can be unique on each host. A /29 network is sufficient. |
| SERVICED_DOCKER_DNS |
A list of one or more DNS servers. The list is injected into all Docker containers. |
Debugging variables
| Variable |
Description |
| SERVICED_LOG_LEVEL |
The log level serviced uses when writing to the system log. |
| SERVICED_DEBUG_PORT |
The port on which serviced listens for HTTP requests for the Go profiler. |
| SERVICED_DOCKER_LOG_DRIVER |
The log driver for all Docker container logs. |
| SERVICED_DOCKER_LOG_CONFIG |
Docker --log-opt options. |
Tuning variables (all Control Center hosts)
| Variable |
Description |
| SERVICED_MAX_CONTAINER_AGE |
The number of seconds serviced waits before removing a stopped container. |
| SERVICED_ISVCS_ENV_[0-9]+ |
Startup arguments to pass to specific internal services. |
| SERVICED_SERVICE_MIGRATION_TAG |
Overrides the default value for the service migration image. |
| SERVICED_OPTS |
Startup arguments for serviced. |
| SERVICED_CONTROLLER_BINARY |
The path of the serviced-controller binary. |
| SERVICED_HOME |
The path of the home directory for serviced. |
| SERVICED_ETC_PATH |
The path of the directory for serviced configuration files. |
| SERVICED_VHOST_ALIASES |
A list of hostname aliases for a host; for example, localhost. |
| SERVICED_ZK_CONNECT_TIMEOUT |
The number of seconds Control Center waits for a connection to the lead ZooKeeper host. |
| SERVICED_ZK_PER_HOST_CONNECT_DELAY |
The number of seconds Control Center waits before attempting to connect to the next host in its round-robin list of ZooKeeper hosts. |
SERVICED_ZK_RECONNECT_START_DELAY
SERVICED_ZK_RECONNECT_MAX_DELAY |
These are used together when Control Center is unable to re-establish a connection with the lead ZooKeeper host. |