ethereum-swarm-persistent-resources.yaml

---
AWSTemplateFormatVersion: '2010-09-09'
Metadata:
  License: MIT License
Description: Manage persistent resources for Ethereum Swarm
Parameters:
  AvailabilityZone:
    Description: (Required) Availability zone to be used
    Type: AWS::EC2::AvailabilityZone::Name
  SwarmDataDiskSize:
    Description: (Required) Swarm data disk size in gigabytes
    Default: 50
    Type: Number
  SnapshotID:
    Description: (Optional) Restore EBS volume from a snapshot
    Default: ''
    Type: String

Conditions:
  RestoreFromSnapshot: !Not [!Equals [ !Ref 'SnapshotID', '']]

Resources:
  SwarmDataVolume:
    Type: AWS::EC2::Volume
    DeletionPolicy: Snapshot
    Properties:
      Size:
        !If [RestoreFromSnapshot, !Ref 'AWS::NoValue', !Ref 'SwarmDataDiskSize']
      VolumeType: gp2
      AvailabilityZone: !Ref 'AvailabilityZone'
      SnapshotId:
        !If [RestoreFromSnapshot, !Ref 'SnapshotID', !Ref 'AWS::NoValue']
      Tags:
        -
          Key: Name
          Value: !Ref 'AWS::StackName'
  PublicIP:
    Type: AWS::EC2::EIP

Outputs:
  PublicIP:
    Description: Public IP address
    Value: !Ref 'PublicIP'
    Export:
      Name: SwarmPublicIP
  SwarmDataVolume:
    Description: Swarm Data Volume
    Value: !Ref 'SwarmDataVolume'
    Export:
      Name: SwarmDataVolume
  AvailabilityZone:
    Description: Availability Zone
    Value: !Ref 'AvailabilityZone'
    Export:
      Name: AvailabilityZone