From 9d20aee81c3c5fa490361fb3fc5bba958419fb48 Mon Sep 17 00:00:00 2001 From: Elad Ben-Israel Date: Mon, 11 Feb 2019 16:49:09 +0200 Subject: [PATCH] feat(autoscaling): bring your own IAM role Allow specifying an IAM role (`IRole`) when defining an AutoScalingGroup. This allows either passing a role created in the same stack or passing in an imported role. Fixes #1701 --- .../aws-autoscaling/lib/auto-scaling-group.ts | 10 +- .../test/integ.external-role.expected.json | 608 ++++++++++++++++++ .../test/integ.external-role.ts | 28 + .../test/test.auto-scaling-group.ts | 22 + 4 files changed, 666 insertions(+), 2 deletions(-) create mode 100644 packages/@aws-cdk/aws-autoscaling/test/integ.external-role.expected.json create mode 100644 packages/@aws-cdk/aws-autoscaling/test/integ.external-role.ts diff --git a/packages/@aws-cdk/aws-autoscaling/lib/auto-scaling-group.ts b/packages/@aws-cdk/aws-autoscaling/lib/auto-scaling-group.ts index 83180ec460199..b937ec5d170bd 100644 --- a/packages/@aws-cdk/aws-autoscaling/lib/auto-scaling-group.ts +++ b/packages/@aws-cdk/aws-autoscaling/lib/auto-scaling-group.ts @@ -159,6 +159,12 @@ export interface AutoScalingGroupProps extends CommonAutoScalingGroupProps { * AMI to launch */ machineImage: ec2.IMachineImageSource; + + /** + * An IAM role to associate with the instance profile assigned to this Auto Scaling Group. + * @default A role will automatically be created, it can be accessed via the `role` property + */ + role?: iam.IRole; } /** @@ -187,7 +193,7 @@ export class AutoScalingGroup extends cdk.Construct implements IAutoScalingGroup /** * The IAM role assumed by instances of this fleet. */ - public readonly role: iam.Role; + public readonly role: iam.IRole; /** * Name of the AutoScalingGroup @@ -217,7 +223,7 @@ export class AutoScalingGroup extends cdk.Construct implements IAutoScalingGroup this.securityGroups.push(this.securityGroup); this.apply(new cdk.Tag(NAME_TAG, this.node.path)); - this.role = new iam.Role(this, 'InstanceRole', { + this.role = props.role || new iam.Role(this, 'InstanceRole', { assumedBy: new iam.ServicePrincipal('ec2.amazonaws.com') }); diff --git a/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.expected.json b/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.expected.json new file mode 100644 index 0000000000000..52b00ee95f3cc --- /dev/null +++ b/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.expected.json @@ -0,0 +1,608 @@ +{ + "Resources": { + "VPCB9E5F0B4": { + "Type": "AWS::EC2::VPC", + "Properties": { + "CidrBlock": "10.0.0.0/16", + "EnableDnsHostnames": true, + "EnableDnsSupport": true, + "InstanceTenancy": "default", + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC" + } + ] + } + }, + "VPCPublicSubnet1SubnetB4246D30": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.0.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1a", + "MapPublicIpOnLaunch": true, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet1" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Public" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Public" + } + ] + } + }, + "VPCPublicSubnet1RouteTableFEE4B781": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet1" + } + ] + } + }, + "VPCPublicSubnet1RouteTableAssociation0B0896DC": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet1RouteTableFEE4B781" + }, + "SubnetId": { + "Ref": "VPCPublicSubnet1SubnetB4246D30" + } + } + }, + "VPCPublicSubnet1DefaultRoute91CEF279": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet1RouteTableFEE4B781" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "GatewayId": { + "Ref": "VPCIGWB7E252D3" + } + }, + "DependsOn": [ + "VPCVPCGW99B986DC" + ] + }, + "VPCPublicSubnet1EIP6AD938E8": { + "Type": "AWS::EC2::EIP", + "Properties": { + "Domain": "vpc" + } + }, + "VPCPublicSubnet1NATGatewayE0556630": { + "Type": "AWS::EC2::NatGateway", + "Properties": { + "AllocationId": { + "Fn::GetAtt": [ + "VPCPublicSubnet1EIP6AD938E8", + "AllocationId" + ] + }, + "SubnetId": { + "Ref": "VPCPublicSubnet1SubnetB4246D30" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet1" + } + ] + } + }, + "VPCPublicSubnet2Subnet74179F39": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.32.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1b", + "MapPublicIpOnLaunch": true, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet2" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Public" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Public" + } + ] + } + }, + "VPCPublicSubnet2RouteTable6F1A15F1": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet2" + } + ] + } + }, + "VPCPublicSubnet2RouteTableAssociation5A808732": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet2RouteTable6F1A15F1" + }, + "SubnetId": { + "Ref": "VPCPublicSubnet2Subnet74179F39" + } + } + }, + "VPCPublicSubnet2DefaultRouteB7481BBA": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet2RouteTable6F1A15F1" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "GatewayId": { + "Ref": "VPCIGWB7E252D3" + } + }, + "DependsOn": [ + "VPCVPCGW99B986DC" + ] + }, + "VPCPublicSubnet2EIP4947BC00": { + "Type": "AWS::EC2::EIP", + "Properties": { + "Domain": "vpc" + } + }, + "VPCPublicSubnet2NATGateway3C070193": { + "Type": "AWS::EC2::NatGateway", + "Properties": { + "AllocationId": { + "Fn::GetAtt": [ + "VPCPublicSubnet2EIP4947BC00", + "AllocationId" + ] + }, + "SubnetId": { + "Ref": "VPCPublicSubnet2Subnet74179F39" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet2" + } + ] + } + }, + "VPCPublicSubnet3Subnet631C5E25": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.64.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1c", + "MapPublicIpOnLaunch": true, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet3" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Public" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Public" + } + ] + } + }, + "VPCPublicSubnet3RouteTable98AE0E14": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet3" + } + ] + } + }, + "VPCPublicSubnet3RouteTableAssociation427FE0C6": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet3RouteTable98AE0E14" + }, + "SubnetId": { + "Ref": "VPCPublicSubnet3Subnet631C5E25" + } + } + }, + "VPCPublicSubnet3DefaultRouteA0D29D46": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPublicSubnet3RouteTable98AE0E14" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "GatewayId": { + "Ref": "VPCIGWB7E252D3" + } + }, + "DependsOn": [ + "VPCVPCGW99B986DC" + ] + }, + "VPCPublicSubnet3EIPAD4BC883": { + "Type": "AWS::EC2::EIP", + "Properties": { + "Domain": "vpc" + } + }, + "VPCPublicSubnet3NATGatewayD3048F5C": { + "Type": "AWS::EC2::NatGateway", + "Properties": { + "AllocationId": { + "Fn::GetAtt": [ + "VPCPublicSubnet3EIPAD4BC883", + "AllocationId" + ] + }, + "SubnetId": { + "Ref": "VPCPublicSubnet3Subnet631C5E25" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PublicSubnet3" + } + ] + } + }, + "VPCPrivateSubnet1Subnet8BCA10E0": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.96.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1a", + "MapPublicIpOnLaunch": false, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet1" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Private" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Private" + } + ] + } + }, + "VPCPrivateSubnet1RouteTableBE8A6027": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet1" + } + ] + } + }, + "VPCPrivateSubnet1RouteTableAssociation347902D1": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet1RouteTableBE8A6027" + }, + "SubnetId": { + "Ref": "VPCPrivateSubnet1Subnet8BCA10E0" + } + } + }, + "VPCPrivateSubnet1DefaultRouteAE1D6490": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet1RouteTableBE8A6027" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "NatGatewayId": { + "Ref": "VPCPublicSubnet1NATGatewayE0556630" + } + } + }, + "VPCPrivateSubnet2SubnetCFCDAA7A": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.128.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1b", + "MapPublicIpOnLaunch": false, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet2" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Private" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Private" + } + ] + } + }, + "VPCPrivateSubnet2RouteTable0A19E10E": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet2" + } + ] + } + }, + "VPCPrivateSubnet2RouteTableAssociation0C73D413": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet2RouteTable0A19E10E" + }, + "SubnetId": { + "Ref": "VPCPrivateSubnet2SubnetCFCDAA7A" + } + } + }, + "VPCPrivateSubnet2DefaultRouteF4F5CFD2": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet2RouteTable0A19E10E" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "NatGatewayId": { + "Ref": "VPCPublicSubnet2NATGateway3C070193" + } + } + }, + "VPCPrivateSubnet3Subnet3EDCD457": { + "Type": "AWS::EC2::Subnet", + "Properties": { + "CidrBlock": "10.0.160.0/19", + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "AvailabilityZone": "test-region-1c", + "MapPublicIpOnLaunch": false, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet3" + }, + { + "Key": "aws-cdk:subnet-name", + "Value": "Private" + }, + { + "Key": "aws-cdk:subnet-type", + "Value": "Private" + } + ] + } + }, + "VPCPrivateSubnet3RouteTable192186F8": { + "Type": "AWS::EC2::RouteTable", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC/PrivateSubnet3" + } + ] + } + }, + "VPCPrivateSubnet3RouteTableAssociationC28D144E": { + "Type": "AWS::EC2::SubnetRouteTableAssociation", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet3RouteTable192186F8" + }, + "SubnetId": { + "Ref": "VPCPrivateSubnet3Subnet3EDCD457" + } + } + }, + "VPCPrivateSubnet3DefaultRoute27F311AE": { + "Type": "AWS::EC2::Route", + "Properties": { + "RouteTableId": { + "Ref": "VPCPrivateSubnet3RouteTable192186F8" + }, + "DestinationCidrBlock": "0.0.0.0/0", + "NatGatewayId": { + "Ref": "VPCPublicSubnet3NATGatewayD3048F5C" + } + } + }, + "VPCIGWB7E252D3": { + "Type": "AWS::EC2::InternetGateway", + "Properties": { + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/VPC" + } + ] + } + }, + "VPCVPCGW99B986DC": { + "Type": "AWS::EC2::VPCGatewayAttachment", + "Properties": { + "VpcId": { + "Ref": "VPCB9E5F0B4" + }, + "InternetGatewayId": { + "Ref": "VPCIGWB7E252D3" + } + } + }, + "Role1ABCC5F0": { + "Type": "AWS::IAM::Role", + "Properties": { + "AssumeRolePolicyDocument": { + "Statement": [ + { + "Action": "sts:AssumeRole", + "Effect": "Allow", + "Principal": { + "Service": "ec2.amazonaws.com" + } + } + ], + "Version": "2012-10-17" + } + } + }, + "ASGInstanceSecurityGroup0525485D": { + "Type": "AWS::EC2::SecurityGroup", + "Properties": { + "GroupDescription": "integ-iam-external-role/ASG/InstanceSecurityGroup", + "SecurityGroupEgress": [ + { + "CidrIp": "0.0.0.0/0", + "Description": "Allow all outbound traffic by default", + "IpProtocol": "-1" + } + ], + "SecurityGroupIngress": [], + "Tags": [ + { + "Key": "Name", + "Value": "integ-iam-external-role/ASG" + } + ], + "VpcId": { + "Ref": "VPCB9E5F0B4" + } + } + }, + "ASGInstanceProfile0A2834D7": { + "Type": "AWS::IAM::InstanceProfile", + "Properties": { + "Roles": [ + { + "Ref": "Role1ABCC5F0" + } + ] + } + }, + "ASGLaunchConfigC00AF12B": { + "Type": "AWS::AutoScaling::LaunchConfiguration", + "Properties": { + "ImageId": "ami-1234", + "InstanceType": "t2.micro", + "IamInstanceProfile": { + "Ref": "ASGInstanceProfile0A2834D7" + }, + "SecurityGroups": [ + { + "Fn::GetAtt": [ + "ASGInstanceSecurityGroup0525485D", + "GroupId" + ] + } + ], + "UserData": { + "Fn::Base64": "#!/bin/bash\n" + } + }, + "DependsOn": [ + "Role1ABCC5F0" + ] + }, + "ASG46ED3070": { + "Type": "AWS::AutoScaling::AutoScalingGroup", + "Properties": { + "MaxSize": "1", + "MinSize": "1", + "DesiredCapacity": "1", + "LaunchConfigurationName": { + "Ref": "ASGLaunchConfigC00AF12B" + }, + "Tags": [ + { + "Key": "Name", + "PropagateAtLaunch": true, + "Value": "integ-iam-external-role/ASG" + } + ], + "VPCZoneIdentifier": [ + { + "Ref": "VPCPrivateSubnet1Subnet8BCA10E0" + }, + { + "Ref": "VPCPrivateSubnet2SubnetCFCDAA7A" + }, + { + "Ref": "VPCPrivateSubnet3Subnet3EDCD457" + } + ] + }, + "UpdatePolicy": { + "AutoScalingScheduledAction": { + "IgnoreUnmodifiedGroupSizeProperties": true + } + } + } + } +} \ No newline at end of file diff --git a/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.ts b/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.ts new file mode 100644 index 0000000000000..dca53af02b900 --- /dev/null +++ b/packages/@aws-cdk/aws-autoscaling/test/integ.external-role.ts @@ -0,0 +1,28 @@ +import ec2 = require('@aws-cdk/aws-ec2'); +import iam = require('@aws-cdk/aws-iam'); +import cdk = require('@aws-cdk/cdk'); +import asg = require('../lib'); + +class TestStack extends cdk.Stack { + constructor(scope: cdk.App, id: string) { + super(scope, id); + + const vpc = new ec2.VpcNetwork(this, 'VPC'); + const role = new iam.Role(this, 'Role', { + assumedBy: new iam.ServicePrincipal('ec2.amazonaws.com') + }); + + new asg.AutoScalingGroup(this, 'ASG', { + instanceType: new ec2.InstanceTypePair(ec2.InstanceClass.T2, ec2.InstanceSize.Micro), + vpc, + machineImage: new ec2.AmazonLinuxImage(), + role + }); + } +} + +const app = new cdk.App(); + +new TestStack(app, 'integ-iam-external-role'); + +app.run(); \ No newline at end of file diff --git a/packages/@aws-cdk/aws-autoscaling/test/test.auto-scaling-group.ts b/packages/@aws-cdk/aws-autoscaling/test/test.auto-scaling-group.ts index fca1ce567bbf6..51f01a29b6e72 100644 --- a/packages/@aws-cdk/aws-autoscaling/test/test.auto-scaling-group.ts +++ b/packages/@aws-cdk/aws-autoscaling/test/test.auto-scaling-group.ts @@ -478,6 +478,28 @@ export = { })); test.done(); }, + + 'an existing role can be specified instead of auto-created'(test: Test) { + // GIVEN + const stack = new cdk.Stack(); + const vpc = mockVpc(stack); + const importedRole = iam.Role.import(stack, 'ImportedRole', { roleArn: 'arn:aws:iam::123456789012:role/HelloDude' }); + + // WHEN + const asg = new autoscaling.AutoScalingGroup(stack, 'MyASG', { + vpc, + instanceType: new ec2.InstanceTypePair(ec2.InstanceClass.M4, ec2.InstanceSize.Micro), + machineImage: new ec2.AmazonLinuxImage(), + role: importedRole + }); + + // THEN + test.same(asg.role, importedRole); + expect(stack).to(haveResource('AWS::IAM::InstanceProfile', { + "Roles": [ "HelloDude" ] + })); + test.done(); + } }; function mockVpc(stack: cdk.Stack) {