DevOps Classroom notes 20/Sep/2024

loops in Terraform

Count meta argument

• Refer Here for official docs

Activity 2.2: use count to create multiple subnets in a loop

• Refer Here for changes.

Activity 1.2: Lets change the vpc template and

• Lets ask the user the vpc cidr range and subnet cidr ranges
• Lets ask the user for the Name of vpc and subnets
• Also implement count to create 4 subnets
• inputs to vpc
  • cidr block
  • tags
• inputs to subnet
  • cidr block
  • availability zone
  • tags
• Refer Here for the changes done

Activity 2.3 use complex variables in azure

• Refer Here for changes done to include complex variables.

Passing variables during apply

• we have already looked at option terraform apply -var <var-name>='value'
• Terraform also gives us an option to pass multiple variables at one shot in variables file
• This variables file will have extension of .tfvars and to pass it during apply terraform apply -var-file='dev.tfvars'

Activity 1.3 use variables file for aws template

• we have created a file called dev.tfvars which represents values for dev environment
• Command used to create infra

terraform apply -var-file='dev.tfvars'

• Refer Here
• Exercise: DO the same for azure

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Terraform functions

• Refer Here for the official docs of terraform functions

Activity 1.4: Use function to get how many subnets to be created

• Refer Here
• Apply the same for azure Refer Here