DevOps Manager Interview Questions and Answers

Terraform State File locking mechanism in AWS ensures concurrent access to state files is managed safely.

• Terraform uses a locking mechanism to prevent concurrent access to state files

• Locking is achieved using a DynamoDB table in AWS

• When a user runs Terraform, it acquires a lock on the state file in DynamoDB

• Other users attempting to run Terraform on the same state file will be blocked until the lock is released

• This ensures that only one user can modify the state file at a time...read more

Variable precedence in Ansible

• Ansible follows a specific order to determine variable precedence

• Highest precedence: Variables defined in playbooks or roles

• Next: Variables defined in inventory files or inventory plugins

• Then: Variables defined in command line or extra vars

• Lowest precedence: Variables defined in role defaults or inventory group_vars