# 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 = "{{ datacenter_name }}"
  ip = "{{ ansible_host }}"

# Configuration for telegraf agent
[agent]

  interval = "10s"              ## Default data collection interval for all inputs
  round_interval = true         ## ie, if interval="10s" then always collect on :00, :10, :20, etc.
  metric_batch_size = 1000      ## Controls the size of writes that Telegraf sends to output plugins
  metric_buffer_limit = 10000   ## Maximum number of unwritten metrics per output.
  collection_jitter = "5s"      ## Jitter the collection by a random amount.
  flush_interval = "10s"        ## Default flushing interval for all outputs.
  flush_jitter = "5s"           ## Jitter the flush interval by a random amount
  precision = ""
  debug = false                 ## Log at debug level.
  # quiet = false               ## Log only error level messages.
{% if 'pis' in group_names %}
  logtarget = "file"        ## destination  logs can be one of "file" or "stderr"
  logfile = "/var/log/telegraf/telegraf.log"
  logfile_rotation_interval = "1d"
  # logfile_rotation_max_size = "0MB"
  logfile_rotation_max_archives = 2
{% elif 'macs' in group_names %}
  logtarget = "stderr"        ## destination  logs can be one of "file" or "stderr"
{% endif %}

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

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

[[outputs.influxdb]]
  urls = ["http://influxdb.service.consul:{{ influxdb_port }}"]
  database = "homelab"
  retention_policy = "2day"
  timeout = "5s"

###############################################################################
#                            INPUT PLUGINS                                    #
###############################################################################

[[inputs.cpu]]                # Read metrics about cpu usage
  percpu = true               ## Whether to report per-cpu stats or not
  totalcpu = true             ## Whether to report total system cpu stats or not
  collect_cpu_time = false    ## If true, collect raw CPU time metrics.
  report_active = false       ## If true, compute and report the sum of all non-idle CPU states.
[[inputs.disk]]               # Read metrics about disk usage by mount point
  #mount_points = ["/mnt/usbDrive","/boot"]  # Restrict the stats to only the specified mount points.
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs", "nfsd", "nfs4", "smbfs"]
[[inputs.diskio]]           # Read metrics about disk IO by device
[[inputs.internal]]         # Collect telegraf memory stats.
  collect_memstats = true
[[inputs.mem]]              # Read metrics about memory usage
[[inputs.processes]]        # Get the number of processes and group them by status
[[inputs.swap]]             # Read metrics about swap memory usage
[[inputs.system]]           # Read metrics about system load & uptime
[[inputs.net]]              # Gather metrics about network interfaces

###############################################################################
#                            PROCESSOR PLUGINS                                #
###############################################################################

[[processors.regex]]
  namepass = ["docker_container_mem"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"

[[processors.regex]]
  namepass = ["docker_container_net"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"

[[processors.regex]]
  namepass = ["docker_container_cpu"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"

[[processors.regex]]
  namepass = ["docker_container_blkio"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"

[[processors.regex]]
  namepass = ["docker_container_health"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"
[[processors.regex]]
  namepass = ["docker_container_status"]

  # Tag and field conversions defined in a separate sub-tables
  [[processors.regex.tags]]
    ## Tag to change
    key = "container_name"
    ## Regular expression to match on a tag value
    pattern = "^([a-zA-Z0-9_]+)-\\w{8}-\\w{4}-\\w{4}-\\w{4}-\\w{12}$"
    ## Matches of the pattern will be replaced with this string.  Use ${1}
    ## notation to use the text of the first submatch.
    replacement = "${1}"

###############################################################################
#                            INPUT PLUGINS                                #
###############################################################################

[[inputs.docker]]
  ## 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"

  ## Set to true to collect Swarm metrics(desired_replicas, running_replicas)
  ## Note: configure this in one of the manager nodes in a Swarm cluster.
  ## configuring in multiple Swarm managers results in duplication of metrics.
  gather_services = false

  ## Only collect metrics for these containers. Values will be appended to
  ## container_name_include.
  ## Deprecated (1.4.0), use container_name_include
  container_names = []

  ## Set the source tag for the metrics to the container ID hostname, eg first 12 chars
  source_tag = false

  ## 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.
  ## example: container_state_include = ["created", "restarting", "running", "removing", "paused", "exited", "dead"]
  ## example: container_state_exclude = ["created", "restarting", "running", "removing", "paused", "exited", "dead"]
  # container_state_include = []
  # container_state_exclude = []

  ## Timeout for docker list, info, and stats commands
  timeout = "5s"

  ## Whether to report for each container per-device blkio (8:0, 8:1...),
  ## network (eth0, eth1, ...) and cpu (cpu0, cpu1, ...) stats or not.
  ## Usage of this setting is discouraged since it will be deprecated in favor of 'perdevice_include'.
  ## Default value is 'true' for backwards compatibility, please set it to 'false' so that 'perdevice_include' setting
  ## is honored.
  perdevice = true

  ## Specifies for which classes a per-device metric should be issued
  ## Possible values are 'cpu' (cpu0, cpu1, ...), 'blkio' (8:0, 8:1, ...) and 'network' (eth0, eth1, ...)
  ## Please note that this setting has no effect if 'perdevice' is set to 'true'
  # perdevice_include = ["cpu"]

  ## Whether to report for each container total blkio and network stats or not.
  ## Usage of this setting is discouraged since it will be deprecated in favor of 'total_include'.
  ## Default value is 'false' for backwards compatibility, please set it to 'true' so that 'total_include' setting
  ## is honored.
  total = false

  ## Specifies for which classes a total metric should be issued. Total is an aggregated of the 'perdevice' values.
  ## Possible values are 'cpu', 'blkio' and 'network'
  ## Total 'cpu' is reported directly by Docker daemon, and 'network' and 'blkio' totals are aggregated by this plugin.
  ## Please note that this setting has no effect if 'total' is set to 'false'
  # total_include = ["cpu", "blkio", "network"]

  ## 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 = ["traefik.*"]      # Do not report on Traefik tags

  ## Which environment variables should we use as a tag
  tag_env = ["JAVA_HOME", "HEAP_SIZE"]

  ## 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