DC/OS Input Plugin

This input plugin gathers metrics from a DC/OS cluster's metrics component.

Series Cardinality Warning

Depending on the work load of your DC/OS cluster, this plugin can quickly create a high number of series which, when unchecked, can cause high load on your database.

Use the measurement filtering options to exclude unneeded tags.
Write to a database with an appropriate retention policy.
Consider using the Time Series Index.
Monitor your databases series cardinality.

Global configuration options

In addition to the plugin-specific configuration settings, plugins support additional global and plugin configuration settings. These settings are used to modify metrics, tags, and field or create aliases and configure ordering, etc. See the CONFIGURATION.md for more details.

Configuration

# Input plugin for DC/OS metrics
[[inputs.dcos]]
  ## The DC/OS cluster URL.
  cluster_url = "https://dcos-master-1"

  ## The ID of the service account.
  service_account_id = "telegraf"
  ## The private key file for the service account.
  service_account_private_key = "/etc/telegraf/telegraf-sa-key.pem"

  ## Path containing login token.  If set, will read on every gather.
  # token_file = "/home/dcos/.dcos/token"

  ## In all filter options if both include and exclude are empty all items
  ## will be collected.  Arrays may contain glob patterns.
  ##
  ## Node IDs to collect metrics from.  If a node is excluded, no metrics will
  ## be collected for its containers or apps.
  # node_include = []
  # node_exclude = []
  ## Container IDs to collect container metrics from.
  # container_include = []
  # container_exclude = []
  ## Container IDs to collect app metrics from.
  # app_include = []
  # app_exclude = []

  ## Maximum concurrent connections to the cluster.
  # max_connections = 10
  ## Maximum time to receive a response from cluster.
  # response_timeout = "20s"

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

  ## Recommended filtering to reduce series cardinality.
  # [inputs.dcos.tagdrop]
  #   path = ["/var/lib/mesos/slave/slaves/*"]

Enterprise Authentication

When using Enterprise DC/OS, it is recommended to use a service account to authenticate with the cluster.

The plugin requires the following permissions:

dcos:adminrouter:ops:system-metrics full
dcos:adminrouter:ops:mesos full

Follow the directions to create a service account and assign permissions.

Quick configuration using the Enterprise CLI:

dcos security org service-accounts keypair telegraf-sa-key.pem telegraf-sa-cert.pem
dcos security org service-accounts create -p telegraf-sa-cert.pem -d "Telegraf DC/OS input plugin" telegraf
dcos security org users grant telegraf dcos:adminrouter:ops:system-metrics full
dcos security org users grant telegraf dcos:adminrouter:ops:mesos full

Open Source Authentication

The Open Source DC/OS does not provide service accounts. Instead you can use of the following options:

Disable authentication
Use the token_file parameter to read a authentication token from a file.

Then token_file can be set by using the [dcos cli] to login periodically. The cli can login for at most XXX days, you will need to ensure the cli performs a new login before this time expires.

dcos auth login --username foo --password bar
dcos config show core.dcos_acs_token > ~/.dcos/token

Another option to create a token_file is to generate a token using the cluster secret. This will allow you to set the expiration date manually or even create a never expiring token. However, if the cluster secret or the token is compromised it cannot be revoked and may require a full reinstall of the cluster. For more information on this technique reference this blog post.

Metrics

Please consult the Metrics Reference for details about field interpretation.

dcos_node
- tags:
  - cluster
  - hostname
  - path (filesystem fields only)
  - interface (network fields only)
- fields:
  - system_uptime (float)
  - cpu_cores (float)
  - cpu_total (float)
  - cpu_user (float)
  - cpu_system (float)
  - cpu_idle (float)
  - cpu_wait (float)
  - load_1min (float)
  - load_5min (float)
  - load_15min (float)
  - filesystem_capacity_total_bytes (int)
  - filesystem_capacity_used_bytes (int)
  - filesystem_capacity_free_bytes (int)
  - filesystem_inode_total (float)
  - filesystem_inode_used (float)
  - filesystem_inode_free (float)
  - memory_total_bytes (int)
  - memory_free_bytes (int)
  - memory_buffers_bytes (int)
  - memory_cached_bytes (int)
  - swap_total_bytes (int)
  - swap_free_bytes (int)
  - swap_used_bytes (int)
  - network_in_bytes (int)
  - network_out_bytes (int)
  - network_in_packets (float)
  - network_out_packets (float)
  - network_in_dropped (float)
  - network_out_dropped (float)
  - network_in_errors (float)
  - network_out_errors (float)
  - process_count (float)
dcos_container
- tags:
  - cluster
  - hostname
  - container_id
  - task_name
- fields:
  - cpus_limit (float)
  - cpus_system_time (float)
  - cpus_throttled_time (float)
  - cpus_user_time (float)
  - disk_limit_bytes (int)
  - disk_used_bytes (int)
  - mem_limit_bytes (int)
  - mem_total_bytes (int)
  - net_rx_bytes (int)
  - net_rx_dropped (float)
  - net_rx_errors (float)
  - net_rx_packets (float)
  - net_tx_bytes (int)
  - net_tx_dropped (float)
  - net_tx_errors (float)
  - net_tx_packets (float)
dcos_app
- tags:
  - cluster
  - hostname
  - container_id
  - task_name
- fields:
  - fields are application specific

Example Output

dcos_node,cluster=enterprise,hostname=192.168.122.18,path=/boot filesystem_capacity_free_bytes=918188032i,filesystem_capacity_total_bytes=1063256064i,filesystem_capacity_used_bytes=145068032i,filesystem_inode_free=523958,filesystem_inode_total=524288,filesystem_inode_used=330 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=dummy0 network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=0i,network_out_dropped=0,network_out_errors=0,network_out_packets=0 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=docker0 network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=0i,network_out_dropped=0,network_out_errors=0,network_out_packets=0 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18 cpu_cores=2,cpu_idle=81.62,cpu_system=4.19,cpu_total=13.670000000000002,cpu_user=9.48,cpu_wait=0,load_15min=0.7,load_1min=0.22,load_5min=0.6,memory_buffers_bytes=970752i,memory_cached_bytes=1830473728i,memory_free_bytes=1178636288i,memory_total_bytes=3975073792i,process_count=198,swap_free_bytes=859828224i,swap_total_bytes=859828224i,swap_used_bytes=0i,system_uptime=18874 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=lo network_in_bytes=1090992450i,network_in_dropped=0,network_in_errors=0,network_in_packets=1546938,network_out_bytes=1090992450i,network_out_dropped=0,network_out_errors=0,network_out_packets=1546938 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,path=/ filesystem_capacity_free_bytes=1668378624i,filesystem_capacity_total_bytes=6641680384i,filesystem_capacity_used_bytes=4973301760i,filesystem_inode_free=3107856,filesystem_inode_total=3248128,filesystem_inode_used=140272 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=minuteman network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=210i,network_out_dropped=0,network_out_errors=0,network_out_packets=3 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=eth0 network_in_bytes=539886216i,network_in_dropped=1,network_in_errors=0,network_in_packets=979808,network_out_bytes=112395836i,network_out_dropped=0,network_out_errors=0,network_out_packets=891239 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=spartan network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=210i,network_out_dropped=0,network_out_errors=0,network_out_packets=3 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,path=/var/lib/docker/overlay filesystem_capacity_free_bytes=1668378624i,filesystem_capacity_total_bytes=6641680384i,filesystem_capacity_used_bytes=4973301760i,filesystem_inode_free=3107856,filesystem_inode_total=3248128,filesystem_inode_used=140272 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=vtep1024 network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=0i,network_out_dropped=0,network_out_errors=0,network_out_packets=0 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,path=/var/lib/docker/plugins filesystem_capacity_free_bytes=1668378624i,filesystem_capacity_total_bytes=6641680384i,filesystem_capacity_used_bytes=4973301760i,filesystem_inode_free=3107856,filesystem_inode_total=3248128,filesystem_inode_used=140272 1511859222000000000
dcos_node,cluster=enterprise,hostname=192.168.122.18,interface=d-dcos network_in_bytes=0i,network_in_dropped=0,network_in_errors=0,network_in_packets=0,network_out_bytes=0i,network_out_dropped=0,network_out_errors=0,network_out_packets=0 1511859222000000000
dcos_app,cluster=enterprise,container_id=9a78d34a-3bbf-467e-81cf-a57737f154ee,hostname=192.168.122.18 container_received_bytes_per_sec=0,container_throttled_bytes_per_sec=0 1511859222000000000
dcos_container,cluster=enterprise,container_id=cbf19b77-3b8d-4bcf-b81f-824b67279629,hostname=192.168.122.18 cpus_limit=0.3,cpus_system_time=307.31,cpus_throttled_time=102.029930607,cpus_user_time=268.57,disk_limit_bytes=268435456i,disk_used_bytes=30953472i,mem_limit_bytes=570425344i,mem_total_bytes=13316096i,net_rx_bytes=0i,net_rx_dropped=0,net_rx_errors=0,net_rx_packets=0,net_tx_bytes=0i,net_tx_dropped=0,net_tx_errors=0,net_tx_packets=0 1511859222000000000
dcos_app,cluster=enterprise,container_id=cbf19b77-3b8d-4bcf-b81f-824b67279629,hostname=192.168.122.18 container_received_bytes_per_sec=0,container_throttled_bytes_per_sec=0 1511859222000000000
dcos_container,cluster=enterprise,container_id=5725e219-f66e-40a8-b3ab-519d85f4c4dc,hostname=192.168.122.18,task_name=hello-world cpus_limit=0.6,cpus_system_time=25.6,cpus_throttled_time=327.977109217,cpus_user_time=566.54,disk_limit_bytes=0i,disk_used_bytes=0i,mem_limit_bytes=1107296256i,mem_total_bytes=335941632i,net_rx_bytes=0i,net_rx_dropped=0,net_rx_errors=0,net_rx_packets=0,net_tx_bytes=0i,net_tx_dropped=0,net_tx_errors=0,net_tx_packets=0 1511859222000000000
dcos_app,cluster=enterprise,container_id=5725e219-f66e-40a8-b3ab-519d85f4c4dc,hostname=192.168.122.18 container_received_bytes_per_sec=0,container_throttled_bytes_per_sec=0 1511859222000000000
dcos_app,cluster=enterprise,container_id=c76e1488-4fb7-4010-a4cf-25725f8173f9,hostname=192.168.122.18 container_received_bytes_per_sec=0,container_throttled_bytes_per_sec=0 1511859222000000000
dcos_container,cluster=enterprise,container_id=cbe0b2f9-061f-44ac-8f15-4844229e8231,hostname=192.168.122.18,task_name=telegraf cpus_limit=0.2,cpus_system_time=8.109999999,cpus_throttled_time=93.183916045,cpus_user_time=17.97,disk_limit_bytes=0i,disk_used_bytes=0i,mem_limit_bytes=167772160i,mem_total_bytes=0i,net_rx_bytes=0i,net_rx_dropped=0,net_rx_errors=0,net_rx_packets=0,net_tx_bytes=0i,net_tx_dropped=0,net_tx_errors=0,net_tx_packets=0 1511859222000000000
dcos_container,cluster=enterprise,container_id=b64115de-3d2a-431d-a805-76e7c46453f1,hostname=192.168.122.18 cpus_limit=0.2,cpus_system_time=2.69,cpus_throttled_time=20.064861214,cpus_user_time=6.56,disk_limit_bytes=268435456i,disk_used_bytes=29360128i,mem_limit_bytes=297795584i,mem_total_bytes=13733888i,net_rx_bytes=0i,net_rx_dropped=0,net_rx_errors=0,net_rx_packets=0,net_tx_bytes=0i,net_tx_dropped=0,net_tx_errors=0,net_tx_packets=0 1511859222000000000
dcos_app,cluster=enterprise,container_id=b64115de-3d2a-431d-a805-76e7c46453f1,hostname=192.168.122.18 container_received_bytes_per_sec=0,container_throttled_bytes_per_sec=0 1511859222000000000

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DC/OS Input Plugin

Series Cardinality Warning

Global configuration options

Configuration

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Metrics

Example Output

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DC/OS Input Plugin

Series Cardinality Warning

Global configuration options

Configuration

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Example Output