DevOps Classroom Series – 27/Feb/2020

Elastic Search

  • Is a document-oriented storage
  • Is a distributed system
  • Refer Here


  • Reads the inputs, Processes the input and forwards to output
  • Some of the logstash configurations in plain english sounds like
    • Read the logs from /var/logs/apache2.log and display on the console
    • Read all the application logs of tomcat and add the following information env: production and forward to elastic search
    • Read all the application logs stored in Database and change the date time format and forward to elastic search


  • Install Java JDK 8. In this case im installing on centos 7
# search on ubuntu
sudo apt-cache search jdk

# search on centos
sudo yum search jdk

 sudo yum install java-1.8.0-openjdk-devel -y

  • Proceed the installation by configurting repositories here

Elastic Search, Logstash and kibana configuration

  • Main Configuration files are located at
    • elasticsearch: /etc/elasticsearch
    • logstash: /etc/logstash
    • kibana: /etc/kibana

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