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README.md

README.md

InfluxDB

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.

InfluxDB Documentation

Using this Image

Running the container

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 8083:8083 -p 8086:8086 \
       -v $PWD:/var/lib/influxdb \
       influxdb

Modify $PWD to the directory where you want to store data associated with the InfluxDB container.

You can also have Docker control the volume mountpoint by using a named volume.

docker run -p 8083:8083 -p 8086:8086 \
       -v influxdb:/var/lib/influxdb \
       influxdb

Exposed Ports

The following ports are important and will be automatically exposed when using docker run -P.

  • 8083 Admin interface port
  • 8086 HTTP API PORT

Other important ports that aren't exposed by default:

  • 8091 Meta service port
  • 8088 Clustering (raft) port

These two ports do not need to be exposed in a single server configuration.

Find more about API Endpoints & Ports here.

Configuration

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 \
       -v $PWD:/etc/influxdb \
       influxdb bash -c 'influxd config > /etc/influxdb/influxdb.conf'

# Modify the default configuration, which will now be available
# under $PWD

# Start the InfluxDB container
docker run -p 8083:8083 -p 8086:8086 \
       -v $PWD:/etc/influxdb:ro \
       influxdb -config /etc/influxdb/influxdb.conf

Modify $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.

Examples:

INFLUXDB_REPORTING_DISABLED=true
INFLUXDB_META_DIR=/path/to/metadir
INFLUXDB_DATA_QUERY_LOG_ENABLED=false

Find more about configuring InfluxDB here

Graphite

InfluxDB supports the Graphite line protocol, but the service and ports are not exposed by default. To run InfluxDB with Graphite support enabled, you can either use a configuration file

HTTP API

Creating a DB named mydb:

curl -G http://localhost:8086/query --data-urlencode "q=CREATE DATABASE mydb"

Inserting into the DB:

curl -i -XPOST 'http://localhost:8086/write?db=mydb' --data-binary 'cpu_load_short,host=server01,region=us-west value=0.64 1434055562000000000'

Read more about this in the official documentation

CLI / SHELL

Start the container:

docker run --name=influxdb -d -p 8083:8083 -p 8086:8086 influxdb

Run the influx client in another container as such:

docker run --rm --link=influxdb -it influxdb bash -l
> influx -host $INFLUXDB_PORT_8086_TCP_ADDR

The client needs to run bash first and then use the influx binary from there so the environment variable becomes available to use.

Web Administrator Interface

Navigate to localhost:8083 with your browser while running the container.

See more about using the web admin here.

Supported Docker versions

This image is officially supported on Docker version 1.10.1.