telegraf/plugins/inputs/docker_log

Docker Log Input Plugin

The docker log plugin uses the Docker Engine API to get logs on running docker containers.

The docker plugin uses the Official Docker Client to gather logs from the Engine API. Note: This plugin works only for containers with the local or json-file or journald logging driver.

Configuration:

# Read metrics about docker containers
[[inputs.docker_log]]
  ## Docker Endpoint
  ##   To use TCP, set endpoint = "tcp://[ip]:[port]"
  ##   To use environment variables (ie, docker-machine), set endpoint = "ENV"
  endpoint = "unix:///var/run/docker.sock"

  ## Containers to include and exclude. Collect all if empty. Globs accepted.
  container_name_include = []
  container_name_exclude = []

  ## Container states to include and exclude. Globs accepted.
  ## When empty only containers in the "running" state will be captured.
  # container_state_include = []
  # container_state_exclude = []

  ## docker labels to include and exclude as tags.  Globs accepted.
  ## Note that an empty array for both will include all labels as tags
  docker_label_include = []
  docker_label_exclude = []

  ## Optional TLS Config
  # tls_ca = "/etc/telegraf/ca.pem"
  # tls_cert = "/etc/telegraf/cert.pem"
  # tls_key = "/etc/telegraf/key.pem"
  ## Use TLS but skip chain & host verification
  # insecure_skip_verify = false

Environment Configuration

When using the "ENV" endpoint, the connection is configured using the cli Docker environment variables.

Metrics:

• docker_log
  • tags:
    • container_id
    • container_name
    • stream
  • fields:
    • message

Example Output:

docker_log,com.docker.compose.config-hash=e19e13df8fd01ba2d7c1628158fca45cc91afbbe9661b2d30550547eb53a861e,com.docker.compose.container-number=1,com.docker.compose.oneoff=False,com.docker.compose.project=distribution,com.docker.compose.service=influxdb,com.docker.compose.version=1.21.2,containerId=fce475bbfa4c8380ff858d5d767f78622ca6de955b525477624c2b7896a5b8e4,containerName=aicon-influxdb,host=prash-laptop,logType=stderr log=" [httpd] 172.23.0.2 - aicon_admin [13/Apr/2019:08:35:53 +0000] \"POST /query?db=&q=SHOW+SUBSCRIPTIONS HTTP/1.1\" 200 232 \"-\" \"KapacitorInfluxDBClient\" 2661bc9c-5dc7-11e9-82f8-0242ac170007 1360\n" 1555144553541000000
docker_log,com.docker.compose.config-hash=fd91b3b096c7ab346971c681b88fe1357c609dcc6850e4ea5b1287ad28a57e5d,com.docker.compose.container-number=1,com.docker.compose.oneoff=False,com.docker.compose.project=distribution,com.docker.compose.service=kapacitor,com.docker.compose.version=1.21.2,containerId=6514d1cf6d19e7ecfedf894941f0a2ea21b8aac5e6f48e64f19dbc9bb2805a25,containerName=aicon-kapacitor,host=prash-laptop,logType=stderr log=" ts=2019-04-13T08:36:00.019Z lvl=info msg=\"http request\" service=http host=172.23.0.7 username=- start=2019-04-13T08:36:00.013835165Z method=POST uri=/write?consistency=&db=_internal&precision=ns&rp=monitor protocol=HTTP/1.1 status=204 referer=- user-agent=InfluxDBClient request-id=2a3eb481-5dc7-11e9-825b-000000000000 duration=5.814404ms\n" 1555144560024000000