InfluxDB is a time series database built from the ground up to handle high write and query loads. InfluxDB is meant to be used as a backing store for any use case involving large amounts of timestamped data, including DevOps monitoring, application metrics, IoT sensor data, and real-time analytics.
The InfluxDB image exposes a shared volume under
/var/lib/influxdb, so you can mount a host directory to that point to access persisted container data. A typical invocation of the container might be:
$ docker run -p 8086:8086 \ -v $PWD:/var/lib/influxdb \ influxdb
$PWD to the directory where you want to store data associated with the InfluxDB container.
You can also have Docker control the volume mount point by using a named volume.
$ docker run -p 8086:8086 \ -v influxdb:/var/lib/influxdb \ influxdb
The following ports are important and are used by InfluxDB.
8086 HTTP API port
8083 Administrator interface port, if it is enabled
2003 Graphite support, if it is enabled
The HTTP API port will be automatically exposed when using
docker run -P.
The administrator interface is not automatically exposed when using
docker run -P and is disabled by default. The administrator interface requires that the web browser have access to InfluxDB on the same port in the container as from the web browser. Since
-P exposes the HTTP port to the host on a random port, the administrator interface is not compatible with this setting.
The administrator interface is deprecated as of 1.1.0 and will be removed in 1.3.0.
InfluxDB can be either configured from a config file or using environment variables. To mount a configuration file and use it with the server, you can use this command:
Generate the default configuration file:
$ docker run --rm influxdb influxd config > influxdb.conf
Modify the default configuration, which will now be available under
$PWD. Then start the InfluxDB container
$ docker run -p 8086:8086 \ -v $PWD/influxdb.conf:/etc/influxdb/influxdb.conf:ro \ influxdb -config /etc/influxdb/influxdb.conf
$PWD to the directory where you want to store the configuration file.
For environment variables, the format is
INFLUXDB_$SECTION_$NAME. All dashes (
-) are replaced with underscores (
_). If the variable isn’t in a section, then omit that part.
INFLUXDB_REPORTING_DISABLED=true INFLUXDB_META_DIR=/path/to/metadir INFLUXDB_DATA_QUERY_LOG_ENABLED=false
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