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aws-refarch-wordpress-03-bastion.yaml
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aws-refarch-wordpress-03-bastion.yaml
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---
AWSTemplateFormatVersion: 2010-09-09
Description: Reference Architecture to host WordPress on AWS - Creates bastion (desired:0; min:0; max:1) Auto Scaling group
Metadata:
Authors:
Description: Darryl Osborne ([email protected])
License:
Description: 'Copyright 2018 Amazon.com, Inc. and its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0'
AWS::CloudFormation::Interface:
ParameterGroups:
- Label:
default: AWS Parameters
Parameters:
- EC2KeyName
- BastionInstanceType
- BastionSecurityGroup
- NumberOfSubnets
- Subnet
ParameterLabels:
BastionSecurityGroup:
default: Bastion Security Group
BastionInstanceType:
default: Instance Type
EC2KeyName:
default: Existing Key Pair
NumberOfSubnets:
default: Number of subnets
Subnet:
default: Subnets
Parameters:
BastionSecurityGroup:
Description: Select the bastion security group.
Type: AWS::EC2::SecurityGroup::Id
BastionInstanceType:
AllowedValues:
- t2.nano
- t2.micro
- t2.small
- t2.medium
- t2.large
- t2.xlarge
- t2.2xlarge
- m3.medium
- m3.large
- m3.xlarge
- m3.2xlarge
- m4.large
- m4.xlarge
- m4.2xlarge
- m4.4xlarge
- m4.10xlarge
- m4.16xlarge
- m5.large
- m5.xlarge
- m5.2xlarge
- m5.4xlarge
- m5.12xlarge
- m5.24xlarge
- c3.large
- c3.xlarge
- c3.2xlarge
- c3.4xlarge
- c3.8xlarge
- c4.large
- c4.xlarge
- c4.2xlarge
- c4.4xlarge
- c4.8xlarge
- c5.large
- c5.xlarge
- c5.2xlarge
- c5.4xlarge
- c5.9xlarge
- c5.18xlarge
- r3.large
- r3.xlarge
- r3.2xlarge
- r3.4xlarge
- r3.8xlarge
- r4.large
- r4.xlarge
- r4.2xlarge
- r4.4xlarge
- r4.8xlarge
- r4.16xlarge
- x1.16xlarge
- x1.32xlarge
- x1e.xlarge
- x1e.2xlarge
- x1e.4xlarge
- x1e.8xlarge
- x1e.16xlarge
- x1e.32xlarge
- d2.xlarge
- d2.2xlarge
- d2.4xlarge
- d2.8xlarge
- h1.2xlarge
- h1.4xlarge
- h1.8xlarge
- h1.16xlarge
- i2.xlarge
- i2.2xlarge
- i2.4xlarge
- i2.8xlarge
- i3.large
- i3.xlarge
- i3.2xlarge
- i3.4xlarge
- i3.8xlarge
- i3.16xlarge
- f1.2xlarge
- f1.16xlarge
- g2.2xlarge
- g2.8xlarge
- g3.4xlarge
- g3.8xlarge
- g3.16xlarge
- p2.xlarge
- p2.8xlarge
- p2.16xlarge
- p3.2xlarge
- p3.8xlarge
- p3.16xlarge
ConstraintDescription: Must be a valid Amazon EC2 instance type.
Default: t2.nano
Description: Bastion EC2 instance type.
Type: String
EC2KeyName:
Description: Name of an EC2 KeyPair. Your bastion instances will launch with this KeyPair.
Type: AWS::EC2::KeyPair::KeyName
NumberOfSubnets:
AllowedValues:
- 2
- 3
- 4
- 5
- 6
Default: 3
Description: Number of subnets. This must match your selections in the list of subnets below.
Type: String
Subnet:
Description: Select existing subnets. The number selected must match the number of subnets above. Subnets selected must be in separate AZs.
Type: List<AWS::EC2::Subnet::Id>
Conditions:
NumberOfSubnets1:
!Equals [ 1, !Ref NumberOfSubnets ]
NumberOfSubnets2:
!Equals [ 2, !Ref NumberOfSubnets ]
NumberOfSubnets3:
!Equals [ 3, !Ref NumberOfSubnets ]
NumberOfSubnets4:
!Equals [ 4, !Ref NumberOfSubnets ]
NumberOfSubnets5:
!Equals [ 5, !Ref NumberOfSubnets ]
NumberOfSubnets6:
!Equals [ 6, !Ref NumberOfSubnets ]
Subnet0: !Or
- !Condition NumberOfSubnets1
- !Condition NumberOfSubnets2
- !Condition NumberOfSubnets3
- !Condition NumberOfSubnets4
- !Condition NumberOfSubnets5
- !Condition NumberOfSubnets6
Subnet1: !Or
- !Condition NumberOfSubnets2
- !Condition NumberOfSubnets3
- !Condition NumberOfSubnets4
- !Condition NumberOfSubnets5
- !Condition NumberOfSubnets6
Subnet2: !Or
- !Condition NumberOfSubnets3
- !Condition NumberOfSubnets4
- !Condition NumberOfSubnets5
- !Condition NumberOfSubnets6
Subnet3: !Or
- !Condition NumberOfSubnets4
- !Condition NumberOfSubnets5
- !Condition NumberOfSubnets6
Subnet4: !Or
- !Condition NumberOfSubnets5
- !Condition NumberOfSubnets6
Subnet5: !Condition NumberOfSubnets6
Mappings:
RegionMap:
ap-northeast-1:
AMI: ami-da9e2cbc
ap-northeast-2:
AMI: ami-1196317f
ap-south-1:
AMI: ami-d5c18eba
ap-southeast-1:
AMI: ami-c63d6aa5
ap-southeast-2:
AMI: ami-ff4ea59d
ca-central-1:
AMI: ami-d29e25b6
eu-central-1:
AMI: ami-bf2ba8d0
eu-west-1:
AMI: ami-1a962263
eu-west-2:
AMI: ami-e7d6c983
sa-east-1:
AMI: ami-286f2a44
us-east-1:
AMI: ami-55ef662f
us-east-2:
AMI: ami-15e9c770
us-west-1:
AMI: ami-a51f27c5
us-west-2:
AMI: ami-bf4193c7
Resources:
BastionAutoScalingGroup:
Type: AWS::AutoScaling::AutoScalingGroup
Properties:
Cooldown: 60
HealthCheckGracePeriod: 120
HealthCheckType: EC2
LaunchConfigurationName: !Ref BastionLaunchConfiguration
MaxSize: 1
MinSize: 0
Tags:
- Key: Name
Value: !Join [ '', [ 'Bastion / ', !Ref 'AWS::StackName' ] ]
PropagateAtLaunch: true
VPCZoneIdentifier:
!If
[ NumberOfSubnets1,
[ !Select [ 0, !Ref Subnet ] ],
!If
[ NumberOfSubnets2,
[ !Select [ 0, !Ref Subnet ], !Select [ 1, !Ref Subnet ] ],
!If
[ NumberOfSubnets3,
[ !Select [ 0, !Ref Subnet ], !Select [ 1, !Ref Subnet ], !Select [ 2, !Ref Subnet ] ],
!If
[ NumberOfSubnets4,
[ !Select [ 0, !Ref Subnet ], !Select [ 1, !Ref Subnet ], !Select [ 2, !Ref Subnet ], !Select [ 3, !Ref Subnet ] ],
!If
[ NumberOfSubnets5,
[ !Select [ 0, !Ref Subnet ], !Select [ 1, !Ref Subnet ], !Select [ 2, !Ref Subnet ], !Select [ 3, !Ref Subnet ], !Select [ 4, !Ref Subnet ] ],
[ !Select [ 0, !Ref Subnet ], !Select [ 1, !Ref Subnet ], !Select [ 2, !Ref Subnet ], !Select [ 3, !Ref Subnet ], !Select [ 4, !Ref Subnet ], !Select [ 5, !Ref Subnet ] ]
]
]
]
]
]
BastionLaunchConfiguration:
Type: AWS::AutoScaling::LaunchConfiguration
Properties:
IamInstanceProfile: !Ref BastionInstanceProfile
ImageId: !FindInMap [ RegionMap, !Ref 'AWS::Region', AMI ]
InstanceMonitoring: true
InstanceType: !Ref BastionInstanceType
KeyName: !Ref EC2KeyName
SecurityGroups:
- !Ref BastionSecurityGroup
BastionInstanceProfile:
Type: AWS::IAM::InstanceProfile
Properties:
Path: '/'
Roles:
- !Ref BastionInstanceRole
BastionInstanceRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Principal:
Service:
- ec2.amazonaws.com
Action:
- sts:AssumeRole
Path: '/'
Policies:
- PolicyName: logs
PolicyDocument:
Version: 2012-10-17
Statement:
- Effect: Allow
Action:
- logs:CreateLogGroup
- logs:CreateLogStream
- logs:PutLogEvents
- logs:DescribeLogStreams
Resource:
- arn:aws:logs:*:*:*