Configuring Control Center
Control Center (serviced) is a single binary that behaves differently based on the variables defined in its startup script, /etc/init/serviced.conf, and in its defaults file, /etc/default/serviced. The values in the defaults file take precedence over the values defined in the startup script.
The following list describes the contents of /etc/default/serviced and their affects on the serviced daemon.
- HOME
- Default: /root
- The path serviced uses to locate
the .dockercfg file.
This variable is included in the startup script, /etc/init/serviced.conf.
- GOMAXPROCS
- Default: 2
- The maximum number of CPU cores serviced uses.
This variable is included in the startup script, /etc/init/serviced.conf.
- SERVICED_AGENT
- Default: 1 (true)
- One of two variables that determine whether serviced assumes
the role of agent or master. The other variable is SERVICED_MASTER.
- To configure serviced as an agent:
SERVICED_AGENT=1 SERVICED_MASTER=0
- To configure serviced as the master:
SERVICED_AGENT=1 SERVICED_MASTER=1
This variable is included in the startup script, /etc/init/serviced.conf.
- To configure serviced as an agent:
- SERVICED_MASTER
- Default: 1 (true)
- One of two variables that determine whether serviced assumes the role of agent
or master. The other variable is SERVICED_AGENT.
This variable is included in the startup script, /etc/init/serviced.conf.
- SERVICED_MASTER_POOLID
- Default: default
- The name of the resource pool in which the serviced instance configured as master is located.
- SERVICED_MASTER_IP
- Default: 172.17.42.1
- The IP address of the serviced instance configured as master. This variable simplifies the configuration of multi-host deployments.
- SERVICED_ZK
- Default: $SERVICED_MASTER_IP:2181
- The list of endpoints in serviced's ZooKeeper ensemble, separated by the comma character (,). Currently, the serviced instance configured as master is the only host in the ZooKeeper ensemble.
- SERVICED_REGISTRY
- Default: 1 (true)
- Determines whether serviced uses a local registry to store images.
- SERVICED_DOCKER_REGISTRY
- Default: $SERVICED_MASTER_IP:5000
- The IP address and port number of the serviced registry host.
- SERVICED_STATIC_IPS
- Default: 10.0.0.30,10.0.0.31
- The list of static IP addresses reserved for serviced to use when it advertises external IP addresses on behalf of services it manages, separated by the comma character (,).
- SERVICED_ENDPOINT
- Default: $SERVICED_MASTER_IP:4979
- The IP address and port number of the default serviced RPC endpoint.
- SERVICED_RPC_PORT
- Default: 4979
- The port on which serviced listens for RPC requests.
- SERVICED_UI_PORT
- Default: 443
- The port on which serviced listens for HTTPS requests. (The web interface port.)
- SERVICED_MUX_PORT
- Default: 22250
- The port serviced uses for multiplexing on its private subnet.
- SERVICED_VARPATH
- Default: /opt/serviced/var
- The path of the local directory in which serviced stores its data files, including the distributed file system files.
- SERVICED_KEY_FILE
- Default: /etc/....
- The path of a TLS key file. By default, no key file is installed.
- SERVICED_CERT_FILE
- Default: /etc/....
- The path of a TLS certificate file. By default, no certificate file is installed.
- SERVICED_VFS
- Default: rsync
- The driver for virtual file system volumes. The supported drivers are rsync and btrfs.
- SERVICED_VHOST_ALIASES
- Default: foobar.com,example.com
- The list of virtual host aliases to use in virtual host multiplexing, separated by the comma character (,).
- SERVICED_MAX_CONTAINER_AGE
- Default: 86400 (1 day)
- The maximum number of seconds serviced waits before removing a stopped container.
- SERVICED_VIRTUAL_ADDRESS_SUBNET
- Default: 10.3
- The 16-bit private subnet to use for serviced's virtual IPv4 addresses.
Note: This value affects the values of SERVICED_STATIC_IPS.
- SERVICED_LOG_LEVEL
- Default: 0
- The relative amount of debug information to write to the /var/log/upstart/serviced.log file. The range is 0 (minimum) to 5 (maximum).
- SERVICED_LOG_ADDRESS
- Default: $SERVICED_MASTER_IP:5042
- The endpoint of the logstash service.
- SERVICED_STATS_PORT
- Default: $SERVICED_MASTER_IP:8443
- The endpoint of the OpenTSDB reader daemon, for serviced statistics.
- SERVICED_STATS_PERIOD
- Default: 10
- The number of seconds to wait between polls (health checks) of hosts in resource pools.
- SERVICED_OPTS
- Default: (empty)
- Arbitrary options for the serviced startup command.