prom-multitenant.influxdb-srelay.conf

###############################
##
## InfluxDB Single instances Config
##
###############################

# InfluxDB Backend InfluxDB01
[[influxdb]]
  name = "influxdb01"
  location = "http://127.0.0.1:8086/"
  timeout = "10s"

# InfluxDB Backend InfluxDB02
[[influxdb]]
  name = "influxdb02"
  location = "http://127.0.0.1:8087/"
  timeout = "10s"


#################################
##
## InfluxDB Cluster Configs as a set 
## of influxdb Single Instances
##
################################# 




# Cluster for Container As A Service Metrics
[[influxcluster]]
  name  = "cluster_k8s"
  members = ["influxdb01","influxdb02"]
  log-file = "cluster_k8s.log"
  log-level = "debug"
  type = "HA"

# HTTP Server
[[http]]
  name = "http-k8s-multitenancy"
  bind-addr = "0.0.0.0:9096"
  log-file = "http_relay_9096.log"
  log-level = "debug"
  access-log = "access.log"

  ## Define endpoints base config
  ## endpoints can have read and write properties

  ## Example: /query endpoint
  ## There are 2 routes that must do a read query  against a cluster
  ## It expects that each HTTP request tries each route. If it fits the filter it will be enrouted
  ## All requests that doesn't pass through  the filter tries the next route



  [[http.endpoint]]
    uri=["/api/v1/prom/write"]
    source_format="prom-write"
    type = "WR"
        
    ## WRITE request - k8s_METRICS
    [[http.endpoint.route]]
      name="k8s_metrics"
      level="data" ## Only for Rules , filter should be processed at HTTP level (route will apply on all data)

      ## Filter only k8s METRICS and let pass to the following config
      [[http.endpoint.route.filter]]
        name="pass_k8s_metrics"
        key="db"
        match=".*"
 
      ## Change database based on tag
      [[http.endpoint.route.rule]]
        name="to_namespace_metrics"
        #transformation for 
        action="route_db_from_data"
        key="tag"
        key_aux="namespace"
        match="(.*)"
        # value will set the db name for points matching tag namespace exist and match `match`
        # IMPORTANT: this rule only routes points if database name doesn't exist it won't create it!
        value="$1"
        # value_on_unmatch will set the db for those points that doesn't have tag namespace or it doesn't match
        value_on_unmatch="other_db"
        to_cluster="cluster_k8s"