IT MNC GROUP Devops Interview Questions and Answers

SSL certification can be configured with Tomcat by generating a keystore file and configuring the server.xml file.

• Generate a keystore file using keytool command

• Configure the server.xml file to include the keystore file and password

• Update the connector element in server.xml to include the SSL protocol and port number

• Restart Tomcat to apply the changes

Dynamic inventory is a feature in Ansible that allows for automatic inventory updates based on external data sources.

• Dynamic inventory can be configured to pull inventory information from sources such as cloud providers, configuration management databases, or custom scripts.

• This allows for more flexible and scalable inventory management, as hosts can be added or removed automatically based on changes in the external da...read more

Deleting last 30 days logs in Tomcat using shell script

• Use find command to locate files older than 30 days

• Use xargs command to pass the file names to rm command

• Use crontab to schedule the script to run periodically

To identify the process causing server slowness, use monitoring tools and analyze system logs.

• Use monitoring tools like Nagios, Zabbix, or Prometheus to track system performance metrics.

• Analyze system logs to identify any errors or warnings related to specific processes.

• Check CPU and memory usage of running processes using tools like top or htop.

• Use profiling tools like strace or perf to identify resource-intensive pro...read more

Stages in pipeline job in Jenkins

• Checkout code from version control system

• Build the code

• Run unit tests

• Deploy to staging environment

• Run integration tests

• Deploy to production environment

• Send notification email

Integrating Maven with Jenkins

• Install Maven plugin in Jenkins

• Configure Maven installation in Jenkins global tool configuration

• Create a new Jenkins job and select Maven project

• Specify the path to the pom.xml file in the project configuration

• Configure build triggers and other settings as required

Git commands are used to manage version control of code repositories.

• git init - initialize a new repository

• git add - add changes to the staging area

• git commit - commit changes to the repository

• git push - push changes to a remote repository

• git pull - pull changes from a remote repository

• git clone - clone a remote repository

• git branch - create, list, or delete branches

• git merge - merge changes from one branch to another

• g...read more

Jenkins pipeline job is a way to define a series of steps to be executed in a specific order.

• Pipeline job is defined using a Jenkinsfile or a script in the Jenkins UI.

• It consists of stages, which are a collection of steps.

• Each step can be a shell command, a script, or a plugin.

• Pipeline job can be triggered manually or automatically based on events.

• It provides visibility into the entire build process and enables continu...read more