Multiple Instances

In an SLS file, a state can include a counting loop that allows you to create n number of instances of the same resource.

To create multiple instances, use names for state replication. The following example shows how to create four internet gateway resources that start with igw- in the name.

SLS

igw-12345:
  aws.ec2.internet_gateway.present:
  - names:{% for i in range(4) %}
            Test {{ loop.index }}: {{loop.index}}
    {% endfor %}
  - tags:
    - Key: new-name
      Value: igw-9cd387e7

Result

      ID: igw-12345
Function: aws.ec2.internet_gateway.present
  Result: True
 Comment: Created 'igw-b440d01c'
 Changes: new:
    ----------
    Attachments:
    InternetGatewayId:
        igw-b440d01c
    OwnerId:
        000000000000
    Tags:
        |_
          ----------
          Key:
              new-name
          Value:
              igw-9cd387e7

      ID: igw-12345
Function: aws.ec2.internet_gateway.present
  Result: True
 Comment: Created 'igw-bc2861d1'
 Changes: new:
    ----------
    Attachments:
    InternetGatewayId:
        igw-bc2861d1
    OwnerId:
        000000000000
    Tags:
        |_
          ----------
          Key:
              new-name
          Value:
              igw-9cd387e7

      ID: igw-12345
Function: aws.ec2.internet_gateway.present
  Result: True
 Comment: Created 'igw-7bf9255d'
 Changes: new:
    ----------
    Attachments:
    InternetGatewayId:
        igw-7bf9255d
    OwnerId:
        000000000000
    Tags:
        |_
          ----------
          Key:
              new-name
          Value:
              igw-9cd387e7

      ID: igw-12345
Function: aws.ec2.internet_gateway.present
  Result: True
 Comment: Created 'igw-3aba95d8'
 Changes: new:
    ----------
    Attachments:
    InternetGatewayId:
        igw-3aba95d8
    OwnerId:
        000000000000
    Tags:
        |_
          ----------
          Key:
              new-name
          Value:
              igw-9cd387e7

To create states with different properties, use a jinja template in a loop. The following example shows how to create three subnets, where each subnet belongs to a different availability zone:

SLS

{% set aws_availability_zones = {"available": { "names": ["us-east-2a", "us-west-2b", "eu-west-3"]}}%}
{% set VpcSuperNet = "10.0."%}
{% for i in range(3) %}
aws_subnet.cluster-{{i}}:
  aws.ec2.subnet.present:
  - availability_zone: {{aws_availability_zones.available.names[i]}}
  - vpc_id: vpc-3d44da2d
  - cidr_block: {{VpcSuperNet+(i | string)}}.0/18
  - tags: {{ [{"Key":"Name", "Value":"test-"+(i | string)} ] }}
{% endfor %}

Result

      ID: aws_subnet.cluster-0
Function: aws.ec2.subnet.present
  Result: True
 Comment: Created 'aws_subnet.cluster-0'
 Changes: new:
    ----------
    name:
        aws_subnet.cluster-0
    resource_id:
        subnet-d7cd43a1
    vpc_id:
        vpc-3d44da2d
    cidr_block:
        10.0.0.0/18
    availability_zone:
        us-west-2a
    tags:
        |_
          ----------
          Key:
              Name
          Value:
              test-0

      ID: aws_subnet.cluster-1
Function: aws.ec2.subnet.present
  Result: True
 Comment: Created 'aws_subnet.cluster-1'
 Changes: new:
    ----------
    name:
        aws_subnet.cluster-1
    resource_id:
        subnet-ad763648
    vpc_id:
        vpc-3d44da2d
    cidr_block:
        10.0.1.0/18
    availability_zone:
        us-west-2b
    tags:
        |_
          ----------
          Key:
              Name
          Value:
              test-0

      ID: aws_subnet.cluster-2
Function: aws.ec2.subnet.present
  Result: True
 Comment: Created 'aws_subnet.cluster-2'
 Changes: new:
    ----------
    name:
        aws_subnet.cluster-2
    resource_id:
        subnet-bc438686
    vpc_id:
        vpc-3d44da2d
    cidr_block:
        10.0.2.0/18
    availability_zone:
        us-west-2c
    tags:
        |_
          ----------
          Key:
              Name
          Value:
              test-0