telegraf.conf

# Telegraf Configuration
#
# Telegraf is entirely plugin driven. All metrics are gathered from the
# declared inputs, and sent to the declared outputs.
#
# Plugins must be declared in here to be active.
# To deactivate a plugin, comment out the name and any variables.
#
# Use 'telegraf -config telegraf.conf -test' to see what metrics a config
# file would generate.
#
# Environment variables can be used anywhere in this config file, simply surround
# them with ${}. For strings the variable must be within quotes (ie, "${STR_VAR}"),
# for numbers and booleans they should be plain (ie, ${INT_VAR}, ${BOOL_VAR})


# Global tags can be specified here in key="value" format.
[global_tags]
  # dc = "us-east-1" # will tag all metrics with dc=us-east-1
  # rack = "1a"
  ## Environment variables can be used as tags, and throughout the config file
  # user = "$USER"


# Configuration for telegraf agent
[agent]
  ## Default data collection interval for all inputs
  interval = "10s"
  ## Rounds collection interval to 'interval'
  ## ie, if interval="10s" then always collect on :00, :10, :20, etc.
  round_interval = true

  ## Telegraf will send metrics to outputs in batches of at most
  ## metric_batch_size metrics.
  ## This controls the size of writes that Telegraf sends to output plugins.
  metric_batch_size = 1000

  ## Maximum number of unwritten metrics per output.
  metric_buffer_limit = 10000

  ## Collection jitter is used to jitter the collection by a random amount.
  ## Each plugin will sleep for a random time within jitter before collecting.
  ## This can be used to avoid many plugins querying things like sysfs at the
  ## same time, which can have a measurable effect on the system.
  collection_jitter = "0s"

  ## Default flushing interval for all outputs. Maximum flush_interval will be
  ## flush_interval + flush_jitter
  flush_interval = "10s"
  ## Jitter the flush interval by a random amount. This is primarily to avoid
  ## large write spikes for users running a large number of telegraf instances.
  ## ie, a jitter of 5s and interval 10s means flushes will happen every 10-15s
  flush_jitter = "0s"

  ## By default or when set to "0s", precision will be set to the same
  ## timestamp order as the collection interval, with the maximum being 1s.
  ##   ie, when interval = "10s", precision will be "1s"
  ##       when interval = "250ms", precision will be "1ms"
  ## Precision will NOT be used for service inputs. It is up to each individual
  ## service input to set the timestamp at the appropriate precision.
  ## Valid time units are "ns", "us" (or "µs"), "ms", "s".
  precision = ""

  ## Log at debug level.
  # debug = false
  ## Log only error level messages.
  # quiet = false

  ## Log file name, the empty string means to log to stderr.
  # logfile = ""

  ## The logfile will be rotated after the time interval specified.  When set
  ## to 0 no time based rotation is performed.  Logs are rotated only when
  ## written to, if there is no log activity rotation may be delayed.
  # logfile_rotation_interval = "0d"

  ## The logfile will be rotated when it becomes larger than the specified
  ## size.  When set to 0 no size based rotation is performed.
  # logfile_rotation_max_size = "0MB"

  ## Maximum number of rotated archives to keep, any older logs are deleted.
  ## If set to -1, no archives are removed.
  # logfile_rotation_max_archives = 5

  ## Override default hostname, if empty use os.Hostname()
  hostname = ""
  ## If set to true, do no set the "host" tag in the telegraf agent.
  omit_hostname = false


###############################################################################
#                            OUTPUT PLUGINS                                   #
###############################################################################


# Configuration for sending metrics to InfluxDB
[[outputs.influxdb]]
  # The full HTTP or UDP URL for your InfluxDB instance.
  #
  # Multiple URLs can be specified for a single cluster, only ONE of the
  # urls will be written to each interval.
  # urls = ["unix:///var/run/influxdb.sock"]
  # urls = ["udp://influxdb:8089"]
   urls = ["http://influxdb:8086"]

  # The target database for metrics; will be created as needed.
  # For UDP url endpoint database needs to be configured on server side.
   database = "telegraf"

  # The value of this tag will be used to determine the database.  If this
  # tag is not set the 'database' option is used as the default.
   database_tag = ""

  # If true, the database tag will not be added to the metric.
   exclude_database_tag = false

  # If true, no CREATE DATABASE queries will be sent.  Set to true when using
  # Telegraf with a user without permissions to create databases or when the
  # database already exists.
   skip_database_creation = false

  # Name of existing retention policy to write to.  Empty string writes to
  # the default retention policy.  Only takes effect when using HTTP.
   retention_policy = ""

  # Write consistency (clusters only), can be: "any", "one", "quorum", "all".
  # Only takes effect when using HTTP.
   write_consistency = "any"

  # Timeout for HTTP messages.
   timeout = "5s"

  # HTTP Basic Auth
   username = "telegraf"
   password = "metricsmetricsmetricsmetrics"

  # HTTP User-Agent
   user_agent = "telegraf"

  # UDP payload size is the maximum packet size to send.
   udp_payload = "512B"

  ## Optional TLS Config for use on HTTP connections.
  # 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
  #
  ## HTTP Proxy override, if unset values the standard proxy environment
  ## variables are consulted to determine which proxy, if any, should be used.
  # http_proxy = "http://corporate.proxy:3128"

  ## Additional HTTP headers
  # http_headers = {"X-Special-Header" = "Special-Value"}

  ## HTTP Content-Encoding for write request body, can be set to "gzip" to
  ## compress body or "identity" to apply no encoding.
  # content_encoding = "identity"

  ## When true, Telegraf will output unsigned integers as unsigned values,
  ## i.e.: "42u".  You will need a version of InfluxDB supporting unsigned
  ## integer values.  Enabling this option will result in field type errors if
  ## existing data has been written.
  # influx_uint_support = false

 # Read metrics from MQTT topic(s)
 [[inputs.mqtt_consumer]]
   ## MQTT broker URLs to be used. The format should be scheme://host:port,
   ## schema can be tcp, ssl, or ws.
   servers = ["tcp://mosquitto:1883"]

   ## Topics that will be subscribed to.
   topics = [
     "telegraf/host01/cpu",
     "telegraf/+/mem",
     "sensors/#",
   ]

   ## The message topic will be stored in a tag specified by this value.  If set
   ## to the empty string no topic tag will be created.
   # topic_tag = "topic"

   ## QoS policy for messages
   ##   0 = at most once
   ##   1 = at least once
   ##   2 = exactly once
   ##
   ## When using a QoS of 1 or 2, you should enable persistent_session to allow
   ## resuming unacknowledged messages.
   # qos = 0

   ## Connection timeout for initial connection in seconds
   # connection_timeout = "30s"

   ## Maximum messages to read from the broker that have not been written by an
   ## output.  For best throughput set based on the number of metrics within
   ## each message and the size of the output's metric_batch_size.
   ##
   ## For example, if each message from the queue contains 10 metrics and the
   ## output metric_batch_size is 1000, setting this to 100 will ensure that a
   ## full batch is collected and the write is triggered immediately without
   ## waiting until the next flush_interval.
   max_undelivered_messages = 1000

   ## Persistent session disables clearing of the client session on connection.
   ## In order for this option to work you must also set client_id to identity
   ## the client.  To receive messages that arrived while the client is offline,
   ## also set the qos option to 1 or 2 and don't forget to also set the QoS when
   ## publishing.
   # persistent_session = false

   ## If unset, a random client ID will be generated.
   # client_id = ""

   ## Username and password to connect MQTT server.
   # username = "telegraf"
   # password = "metricsmetricsmetricsmetrics"

   ## 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

   ## Data format to consume.
   ## Each data format has its own unique set of configuration options, read
   ## more about them here:
   ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
   
   #data_format = "influx"
   data_format = "json"
   #tag_keys = [
   #  "temperature", 
   # "humidity"
   #]