How to configure and integrate Redis with Telegraf on ubuntu 18.04 LTS

In this post, We will configure and integrate Redis monitoring metrics with Telegraf on ubuntu 18.04 LTS


I believe you have already installed and configure prometheus ,Telegraf and MongoDB on your machine if not so then go through the given url to setup prometheus with telegraf on your machine.

 
https://www.techbeginner.in/2020/12/how-to-install-prometheus-on-ubuntu.html
https://www.techbeginner.in/2021/01/how-to-install-telegraf-on-ubuntu-1804.html
https://www.techbeginner.in/2020/03/how-to-install-redis-on-ubuntu-1804-and.html

 

Redis is an in-memory information structure store, utilized as a dispersed, in-memory key–esteem data set, reserve and message agent, with discretionary sturdiness. Redis upholds various types of theoretical information structures, for example, strings, records, maps, sets, arranged sets, HyperLogLogs, bitmaps, streams, and spatial index. 

Step 1: Enable Redis Plugin in Telegraf

By default telegraf we have got the telegraf.d directory on /etc/telegraf/telegraf.d in this path, You need to create a redis.conf configuration file and add the following redis plugin syntax by following the given command.

 

sudo vim /etc/telegraf/telegraf.d/redis.conf

Paste the given code to enable the Redis plugin in telegraf.  

# Read Redis's basic status information
[[inputs.redis]]
  ## specify servers via a url matching:
  ##  [protocol://][:password]@address[:port]
  ##  e.g.
  ##    tcp://localhost:6379
  ##    tcp://:password@192.168.99.100
  ##
  ## If no servers are specified, then localhost is used as the host.
  ## If no port is specified, 6379 is used
  servers = ["tcp://localhost:6379"]
  ## Optional. Specify redis commands to retrieve values
  # [[inputs.redis.commands]]
  # command = ["get", "sample-key"]
  # field = "sample-key-value"
  # type = "string"

  ## specify server password
  # password = "s#cr@t%"

  ## 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 = true 

Here you can uncomments the other parameter to use the username and password for Redis monitoring user as per your requirement, Save and exit from the vim text editor.

Step 2: Restart the Telegraf

You need to restart the Telegraf service to get new changes for Redis metric in prometheus, Use the following command for the same.

©sudo systemctl restart telegraf

Conclusion

We have successfully integrate Redis with Telegraf in our Ubuntu 18.04 server.