This document introduces the configuration of DM-master, including a configuration file template and a description of each configuration parameter in this file.
Configuration file template
The following is a configuration file template of DM-master.
This section introduces the configuration parameters of DM-master.
Global configuration
Parameter
Description
name
The name of the DM-master.
log-level
Specifies a log level from debug, info, warn, error, and fatal. The default log level is info.
log-file
Specifies the log file directory. If the parameter is not specified, the logs are printed onto the standard output.
master-addr
Specifies the address of DM-master which provides services. You can omit the IP address and specify the port number only, such as ":8261".
advertise-addr
Specifies the address that DM-master advertises to the outside world.
peer-urls
Specifies the peer URL of the DM-master node.
advertise-peer-urls
Specifies the peer URL that DM-master advertises to the outside world. The value of advertise-peer-urls is by default the same as that of peer-urls.
initial-cluster
The value of initial-cluster is the combination of the advertise-peer-urls value of all DM-master nodes in the initial cluster.
join
The value of join is the combination of the advertise-peer-urls value of the existed DM-master nodes in the cluster. If the DM-master node is newly added, replace initial-cluster with join.
ssl-ca
The path of the file that contains list of trusted SSL CAs for DM-master to connect with other components.
ssl-cert
The path of the file that contains X509 certificate in PEM format for DM-master to connect with other components.
ssl-key
The path of the file that contains X509 key in PEM format for DM-master to connect with other components.
cert-allowed-cn
Common Name list.
secret-key-path
The file path of the secret key, which is used to encrypt and decrypt upstream and downstream passwords. The file must contain a 64-character hexadecimal AES-256 secret key. One way to generate this key is by calculating SHA256 checksum of random data, such as head -n 256 /dev/urandom | sha256sum. For more information, see Customize a secret key for DM encryption and decryption.