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Getting Started

Refer to Attributes and Secrets for more detail on configuration options for host catalogs and sets.

To create a host catalog (using default scope created by boundary dev):

boundary host-catalogs create plugin \
 -scope-id p_1234567890 \
 -name "Example Plugin-Based Host Catalog" \
 -description "Description for plugin-based host catalog" \
 -plugin-name aws \
 -attr region=REGION \
 -secret access_key_id='KEY' \
 -secret secret_access_key='SECRET'

To create a host set, filtering the host set based on tag keys foo or bar (either tag can be present), ensuring that any targets set to this host set only connect to external addresses in the 54.0.0.0/8 class A subnet:

boundary host-sets create plugin \
 -host-catalog-id HOST_CATALOG_ID \
 -name "Example Plugin-Based Host Set" \
 -description "Description for plugin-based host set" \
 -attr filters=tag-key=foo,bar \
 -preferred-endpoint "cidr:54.0.0.0/8"

As above, but instances must have both tags (both foo and bar must be present):

boundary host-sets create plugin \
 -host-catalog-id HOST_CATALOG_ID \
 -name "Example Plugin-Based Host Set" \
 -description "Description for plugin-based host set" \
 -attr filters=tag-key=foo \
 -attr filters=tag-key=bar \
 -preferred-endpoint "cidr:54.0.0.0/8"

As above, but matching on tag key named "development" with value "prod" or "dev" and launch date:

boundary host-sets create plugin \
 -host-catalog-id HOST_CATALOG_ID \
 -name "Example Plugin-Based Host Set" \
 -description "Description for plugin-based host set" \
 -attr filters=tag:development=prod,dev \
 -attr filters=launch-time=2022-01-04T* \
 -preferred-endpoint "cidr:54.0.0.0/8"

Required IAM Privileges

The following IAM privileges, at the very least, are required to be attached to a configured IAM user for this provider:

  • ec2:DescribeInstances, configured to * (DescribeInstances cannot be scoped to a resource ARN). Example policy:
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "ec2:DescribeInstances"
      ],
      "Effect": "Allow",
      "Resource": "*"
    }
  ]
}
  • iam:GetUser, iam:CreateAccessKey, and iam:DeleteAccessKey, configured to the IAM user to allow credential rotation. Example policy:
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "iam:DeleteAccessKey",
        "iam:GetUser",
        "iam:CreateAccessKey"
      ],
      "Effect": "Allow",
      "Resource": "arn:aws:iam::123456789012:user/JohnDoe"
    }
  ]
}

Attributes and Secrets

Host Catalog

The following attributes are valid on an AWS host catalog resource:

  • disable_credential_rotation (bool): If true, credential rotation will not be performed. See the Credential Rotation readme for more information.
  • region (string): The region to configure the host catalog for. All host sets in this catalog will be configured for this region.
  • role_arn (string): The AWS Role ARN used for AssumeRole authentication. If provided, disable_credential_rotation must be also set to `true.
  • role_external_id (string): The external id configured for the AssumeRole provider.
  • role_session_name (string): The session name configured for the AssumeRole provider.
  • role_tags (object): The key-value pair tags configured for the AssumeRole provider.

The following secrets are required on an AWS host catalog resource:

  • access_key_id (string): The access key ID for the IAM user to use with this host catalog.
  • secret_access_key (string): The secret access key for the IAM user to use with this host catalog.

See the Credential Rotation readme for more information.

Host Set

The following attributes are valid on an AWS host Set resource:

  • filters (array of strings): An array of string filters in the format key=val1,val2. The key corresponds to a filter option, and the value(s) are a comma-separated list. For a list of filter options, check out describe-instances in the AWS CLI reference.