yuhkih / terraform-vpc-example

ROSA Reference VPC

Usage

Planning

• Simple usage

    $ terraform plan -out rosa.tfplan -var region=us-east-2
  

• Full usage with command line variable

    $ terraform plan -out rosa.tfplan \
        -var region=us-east-2 \
        -var 'subnet_azs=["use2-az1", "use2-az2", "use2-az3"]' \
        -var cluster_name=rosa-hcp \
        -var vpc_cidr=10.0.0.0/16 \
        -var subnet_cidr_prefix=24 \
        -var private_subnets_only=false \
        -var single_az_only=false
  

• Full usage with sample tfvars file

    $ teraform plan -out rosa.tfplan -var-file=sample.tfvars
  

Apply

$ terraform apply rosa.tfplan

Reference

Requirements

Name	Version
terraform	>= 1.4.0
aws	~> 4.0
null	~> 3.2

Providers

Name	Version
aws	4.67.0
null	3.2.2

Modules

Name	Source	Version
vpc	terraform-aws-modules/vpc/aws	~> 4.0.0

Resources

Name	Type
null_resource.validations	resource
aws_availability_zones.available_azs	data source

Inputs

Name	Description	Type	Default	Required
cluster_name	Name of the created ROSA with hosted control planes cluster.	string	"rosa-hcp"	no
extra_tags	Extra tags to apply to AWS resources	map	{}	no
private_subnets_only	Only create private subnets	bool	false	no
region	Region to create AWS infrastructure resources for a ROSA with hosted control planes cluster. (required)	string	n/a	yes
single_az_only	Only create subnets in a single availability zone	bool	true	no
subnet_azs	List of availability zone names or IDs that subnets can get deployed into. If not provided, defaults to well known AZ IDs for each region. Does not currently support Local Zones, Outpost, or Wavelength.	list(string)	[]	no
subnet_cidr_prefix	The CIDR prefix value to use when dividing up the VPC CIDR range into subnet ranges. E.g., 24 to create equal subnets of size "24": 10.0.1.0/24, 10.0.2.0/24, etc.	number	24	no
vpc_cidr	IPv4 CIDR netmask for the VPC resource. This should equal or include the cluster's Machine CIDR netmask.	string	"10.0.0.0/16"	no

Outputs

Name	Description
cluster-private-subnets	List of private subnet IDs created.
cluster-public-subnets	List of private subnet IDs created.
cluster-subnets-string	Comma-separated string of all subnet IDs created for this cluster.