apiVersion: v1
kind: ConfigMap
metadata:
  name: telegraf-config
data:
  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 prepend
    # 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]

    # 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

      ## For failed writes, telegraf will cache metric_buffer_limit metrics for each
      ## output, and will flush this buffer on a successful write. Oldest metrics
      ## are dropped first when this buffer fills.
      ## This buffer only fills when writes fail to output plugin(s).
      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 = ""

      ## Logging configuration:
      ## Run telegraf with debug log messages.
      debug = false
      ## Run telegraf in quiet mode (error log messages only).
      quiet = false
      ## Specify the log file name. The empty string means to log to stderr.
      logfile = ""

      ## 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 = true


    ###############################################################################
    #                            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://127.0.0.1:8089"]
      # urls = ["http://127.0.0.1:8086"]
      urls = ["$INFLUXDB_URL"]

      ## The target database for metrics; will be created as needed.
      database = "$INFLUXDB_DB"

      ## 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 = "$INFLUXDB_USER"
      password = "$INFLUXDB_USER_PASSWORD"

      ## HTTP User-Agent
      # user_agent = "telegraf"

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

      ## 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

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

    # Read metrics about cpu usage
    [[inputs.cpu]]
      ## Whether to report per-cpu stats or not
      percpu = true
      ## Whether to report total system cpu stats or not
      totalcpu = true
      ## If true, collect raw CPU time metrics.
      collect_cpu_time = false
      ## If true, compute and report the sum of all non-idle CPU states.
      report_active = false


    # Read metrics about disk usage by mount point
    [[inputs.disk]]
      ## By default stats will be gathered for all mount points.
      ## Set mount_points will restrict the stats to only the specified mount points.
      # mount_points = ["/"]

      ## Ignore mount points by filesystem type.
      ignore_fs = ["tmpfs", "devtmpfs", "devfs", "overlay", "aufs", "squashfs"]


    # Read metrics about disk IO by device
    [[inputs.diskio]]
      ## By default, telegraf will gather stats for all devices including
      ## disk partitions.
      ## Setting devices will restrict the stats to the specified devices.
      # devices = ["sda", "sdb", "vd*"]
      ## Uncomment the following line if you need disk serial numbers.
      # skip_serial_number = false
      #
      ## On systems which support it, device metadata can be added in the form of
      ## tags.
      ## Currently only Linux is supported via udev properties. You can view
      ## available properties for a device by running:
      ## 'udevadm info -q property -n /dev/sda'
      # device_tags = ["ID_FS_TYPE", "ID_FS_USAGE"]
      #
      ## Using the same metadata source as device_tags, you can also customize the
      ## name of the device via templates.
      ## The 'name_templates' parameter is a list of templates to try and apply to
      ## the device. The template may contain variables in the form of '$PROPERTY' or
      ## '${PROPERTY}'. The first template which does not contain any variables not
      ## present for the device is used as the device name tag.
      ## The typical use case is for LVM volumes, to get the VG/LV name instead of
      ## the near-meaningless DM-0 name.
      # name_templates = ["$ID_FS_LABEL","$DM_VG_NAME/$DM_LV_NAME"]


    # Get kernel statistics from /proc/stat
    [[inputs.kernel]]
      # no configuration


    # Read metrics about memory usage
    [[inputs.mem]]
      # no configuration


    # Get the number of processes and group them by status
    [[inputs.processes]]
      # no configuration


    # Read metrics about swap memory usage
    [[inputs.swap]]
      # no configuration


    # Read metrics about system load & uptime
    [[inputs.system]]
      # no configuration

    # Collect TCP connections state and UDP socket counts
    [[inputs.netstat]]
      # no configuration

    # Gather metrics about network interfaces
    [[inputs.net]]
      ## By default, telegraf gathers stats from any up interface (excluding loopback)
      ## Setting interfaces will tell it to gather these explicit interfaces,
      ## regardless of status. When specifying an interface, glob-style
      ## patterns are also supported.
      ##
      # interfaces = ["eth*", "enp0s[0-1]", "lo"]
      ##
      ## On linux systems telegraf also collects protocol stats.
      ## Setting ignore_protocol_stats to true will skip reporting of protocol metrics.
      ##
      # ignore_protocol_stats = false
      ##
