Use CreateVpc with an AWS SDK or CLI

Example 1: To create a VPC

The following create-vpc example creates a VPC with the specified IPv4 CIDR block and a Name tag.

aws ec2 create-vpc \
    --cidr-block 10.0.0.0/16 \
    --tag-specifications ResourceType=vpc,Tags=[{Key=Name,Value=MyVpc}]

Output:

{
    "Vpc": {
        "CidrBlock": "10.0.0.0/16",
        "DhcpOptionsId": "dopt-5EXAMPLE",
        "State": "pending",
        "VpcId": "vpc-0a60eb65b4EXAMPLE",
        "OwnerId": "123456789012",
        "InstanceTenancy": "default",
        "Ipv6CidrBlockAssociationSet": [],
        "CidrBlockAssociationSet": [
            {
                "AssociationId": "vpc-cidr-assoc-07501b79ecEXAMPLE",
                "CidrBlock": "10.0.0.0/16",
                "CidrBlockState": {
                    "State": "associated"
                }
            }
        ],
        "IsDefault": false,
        "Tags": [
            {
                "Key": "Name",
                "Value": MyVpc"
            }
        ]
    }
}

Example 2: To create a VPC with dedicated tenancy

The following create-vpc example creates a VPC with the specified IPv4 CIDR block and dedicated tenancy.

aws ec2 create-vpc \
    --cidr-block 10.0.0.0/16 \
    --instance-tenancy dedicated

Output:

{
    "Vpc": {
        "CidrBlock": "10.0.0.0/16",
        "DhcpOptionsId": "dopt-19edf471",
        "State": "pending",
        "VpcId": "vpc-0a53287fa4EXAMPLE",
        "OwnerId": "111122223333",
        "InstanceTenancy": "dedicated",
        "Ipv6CidrBlockAssociationSet": [],
        "CidrBlockAssociationSet": [
            {
                "AssociationId": "vpc-cidr-assoc-00b24cc1c2EXAMPLE",
                "CidrBlock": "10.0.0.0/16",
                "CidrBlockState": {
                    "State": "associated"
                }
            }
        ],
        "IsDefault": false
    }
}

Example 3: To create a VPC with an IPv6 CIDR block

The following create-vpc example creates a VPC with an Amazon-provided IPv6 CIDR block.

aws ec2 create-vpc \
    --cidr-block 10.0.0.0/16 \
    --amazon-provided-ipv6-cidr-block

Output:

{
    "Vpc": {
        "CidrBlock": "10.0.0.0/16",
        "DhcpOptionsId": "dopt-dEXAMPLE",
        "State": "pending",
        "VpcId": "vpc-0fc5e3406bEXAMPLE",
        "OwnerId": "123456789012",
        "InstanceTenancy": "default",
        "Ipv6CidrBlockAssociationSet": [
            {
                "AssociationId": "vpc-cidr-assoc-068432c60bEXAMPLE",
                "Ipv6CidrBlock": "",
                "Ipv6CidrBlockState": {
                    "State": "associating"
                },
                "Ipv6Pool": "Amazon",
                "NetworkBorderGroup": "us-west-2"
            }
        ],
        "CidrBlockAssociationSet": [
            {
                "AssociationId": "vpc-cidr-assoc-0669f8f9f5EXAMPLE",
                "CidrBlock": "10.0.0.0/16",
                "CidrBlockState": {
                    "State": "associated"
                }
            }
        ],
        "IsDefault": false
    }
}

Example 4: To create a VPC with a CIDR from an IPAM pool

The following create-vpc example creates a VPC with a CIDR from an Amazon VPC IP Address Manager (IPAM) pool.

Linux and macOS:

aws ec2 create-vpc \
    --ipv4-ipam-pool-id ipam-pool-0533048da7d823723 \
    --tag-specifications ResourceType=vpc,Tags='[{Key=Environment,Value="Preprod"},{Key=Owner,Value="Build Team"}]'

Windows:

aws ec2 create-vpc ^
    --ipv4-ipam-pool-id ipam-pool-0533048da7d823723 ^
    --tag-specifications ResourceType=vpc,Tags=[{Key=Environment,Value="Preprod"},{Key=Owner,Value="Build Team"}]

Output:

{
    "Vpc": {
        "CidrBlock": "10.0.1.0/24",
        "DhcpOptionsId": "dopt-2afccf50",
        "State": "pending",
        "VpcId": "vpc-010e1791024eb0af9",
        "OwnerId": "123456789012",
        "InstanceTenancy": "default",
        "Ipv6CidrBlockAssociationSet": [],
        "CidrBlockAssociationSet": [
            {
                "AssociationId": "vpc-cidr-assoc-0a77de1d803226d4b",
                "CidrBlock": "10.0.1.0/24",
                "CidrBlockState": {
                    "State": "associated"
                }
            }
        ],
        "IsDefault": false,
        "Tags": [
            {
                "Key": "Environment",
                "Value": "Preprod"
            },
            {
                "Key": "Owner",
                "Value": "Build Team"
            }
        ]
    }
}

For more information, see Create a VPC that uses an IPAM pool CIDR in the Amazon VPC IPAM User Guide.

    /**
     * @param string $cidr
     * @return array
     */
    public function createVpc(string $cidr): array
    {
        try {
            $result = $this->ec2Client->createVpc([
                "CidrBlock" => $cidr,
            ]);
            return $result['Vpc'];
        }catch(Ec2Exception $caught){
            echo "There was a problem creating the VPC: {$caught->getAwsErrorMessage()}\n";
            throw $caught;
        }
    }

Example 1: This example creates a VPC with the specified CIDR. Amazon VPC also creates the following for the VPC: a default DHCP options set, a main route table, and a default network ACL.

New-EC2VPC -CidrBlock 10.0.0.0/16

Output:

CidrBlock       : 10.0.0.0/16
DhcpOptionsId   : dopt-1a2b3c4d
InstanceTenancy : default
IsDefault       : False
State           : pending
Tags            : {}
VpcId           : vpc-12345678

require 'aws-sdk-ec2'

# Creates a virtual private cloud (VPC) in
# Amazon Virtual Private Cloud (Amazon VPC) and then tags
# the VPC.
#
# @param ec2_resource [Aws::EC2::Resource] An initialized
#   Amazon Elastic Compute Cloud (Amazon EC2) resource object.
# @param cidr_block [String] The IPv4 CIDR block for the subnet.
# @param tag_key [String] The key portion of the tag for the VPC.
# @param tag_value [String] The value portion of the tag for the VPC.
# @return [Boolean] true if the VPC was created and tagged;
#   otherwise, false.
# @example
#   exit 1 unless vpc_created_and_tagged?(
#     Aws::EC2::Resource.new(region: 'us-west-2'),
#     '10.0.0.0/24',
#     'my-key',
#     'my-value'
#   )
def vpc_created_and_tagged?(
  ec2_resource,
  cidr_block,
  tag_key,
  tag_value
)
  vpc = ec2_resource.create_vpc(cidr_block: cidr_block)

  # Create a public DNS by enabling DNS support and DNS hostnames.
  vpc.modify_attribute(enable_dns_support: { value: true })
  vpc.modify_attribute(enable_dns_hostnames: { value: true })

  vpc.create_tags(tags: [{ key: tag_key, value: tag_value }])

  puts "Created VPC with ID '#{vpc.id}' and tagged with key " \
    "'#{tag_key}' and value '#{tag_value}'."
  true
rescue StandardError => e
  puts e.message
  false
end

# Example usage:
def run_me
  cidr_block = ''
  tag_key = ''
  tag_value = ''
  region = ''
  # Print usage information and then stop.
  if ARGV[0] == '--help' || ARGV[0] == '-h'
    puts 'Usage:   ruby ec2-ruby-example-create-vpc.rb ' \
      'CIDR_BLOCK TAG_KEY TAG_VALUE REGION'
    # Replace us-west-2 with the AWS Region you're using for Amazon EC2.
    puts 'Example: ruby ec2-ruby-example-create-vpc.rb ' \
      '10.0.0.0/24 my-key my-value us-west-2'
    exit 1
  # If no values are specified at the command prompt, use these default values.
  elsif ARGV.count.zero?
    cidr_block = '10.0.0.0/24'
    tag_key = 'my-key'
    tag_value = 'my-value'
    # Replace us-west-2 with the AWS Region you're using for Amazon EC2.
    region = 'us-west-2'
  # Otherwise, use the values as specified at the command prompt.
  else
    cidr_block = ARGV[0]
    tag_key = ARGV[1]
    tag_value = ARGV[2]
    region = ARGV[3]
  end

  ec2_resource = Aws::EC2::Resource.new(region: region)

  if vpc_created_and_tagged?(
    ec2_resource,
    cidr_block,
    tag_key,
    tag_value
  )
    puts 'VPC created and tagged.'
  else
    puts 'VPC not created or not tagged.'
  end
end

run_me if $PROGRAM_NAME == __FILE__