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Convert Self-Managed Command-Line Options to YAML

mongod and mongos accept --outputConfig command-line option to output the configuration used by the mongod / mongos instance.

You can use this option to convert command-line options to YAML configuration.

Consider the following mongod invocation that uses the command-line options:

mongod --shardsvr --replSet myShard --dbpath /var/lib/mongodb --bind_ip localhost,My-Example-Hostname --fork --logpath /var/log/mongodb/mongod.log --clusterAuthMode x509 --tlsMode requireTLS --tlsCAFile /path/to/my/CA/file --tlsCertificateKeyFile /path/to/my/certificate/file --tlsClusterFile /path/to/my/cluster/membership/file

Include the --outputConfig command-line option to generate the corresponding YAML file.

mongod --shardsvr --replSet myShard --dbpath /var/lib/mongodb --bind_ip localhost,My-Example-Hostname --fork --logpath /var/log/mongodb/mongod.log --clusterAuthMode x509 --tlsMode requireTLS --tlsCAFile /path/to/my/CA/file --tlsCertificateKeyFile /path/to/my/certificate/file --tlsClusterFile /path/to/my/cluster/membership/file --outputConfig

The mongod outputs the following YAML to stdout and exits:

net:
bindIp: localhost,My-Example-Hostname
tls:
CAFile: /path/to/my/CA/file
certificateKeyFile: /path/to/my/certificate/file
clusterFile: /path/to/my/cluster/membership/file
mode: requireTLS
outputConfig: true
processManagement:
fork: true
replication:
replSet: myShard
security:
clusterAuthMode: x509
sharding:
clusterRole: shardsvr
storage:
dbPath: /var/lib/mongodb
systemLog:
destination: file
path: /var/log/mongodb/mongod.log

To create a configuration file, copy the generated content into a file and delete the outputConfig setting from the YAML.

Consider the following mongos invocation that uses the command-line options:

mongos --configdb myCSRS/cfg1.example.net:27019,cfg2.example.net:27019 --bind_ip localhost,My-Example-MONGOS-Hostname --fork --logpath /var/log/mongodb/mongos.log --clusterAuthMode x509 --tlsMode requireTLS --tlsCAFile /path/to/my/CA/file --tlsCertificateKeyFile /path/to/my/certificate/file --tlsClusterFile /path/to/my/cluster/membership/file

Include the --outputConfig command-line option to generate the corresponding YAML for the mongos instance:

mongos --configdb myCSRS/cfg1.example.net:27019,cfg2.example.net:27019 --bind_ip localhost,My-Example-MONGOS-Hostname --fork --logpath /var/log/mongodb/mongos.log --clusterAuthMode x509 --tlsMode requireTLS --tlsCAFile /path/to/my/CA/file --tlsCertificateKeyFile /path/to/my/certificate/file --tlsClusterFile /path/to/my/cluster/membership/file --outputConfig

The mongos outputs the following YAML to stdout and exits:

net:
bindIp: localhost,My-Example-MONGOS-Hostname
tls:
CAFile: /path/to/my/CA/file
certificateKeyFile: /path/to/my/certificate/file
clusterFile: /path/to/my/cluster/membership/file
mode: requireTLS
outputConfig: true
processManagement:
fork: true
security:
clusterAuthMode: x509
sharding:
configDB: myCSRS/cfg1.example.net:27019,cfg2.example.net:27019
systemLog:
destination: file
path: /var/log/mongodb/mongos.log

To create a configuration file, copy the generated content into a file and delete the outputConfig setting from the YAML.

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