showcase.yaml

---
# The MIT License (MIT)
# 
# Copyright (c) 2016 widdix GmbH
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
AWSTemplateFormatVersion: '2010-09-09'
Description: 'AWS EC2 SSH access with IAM showcase using install.sh'
Parameters:
  VPC:
    Type: 'AWS::EC2::VPC::Id'
    Description: 'The VPC the EC2 instance is launched into.'
  Subnet:
    Type: 'AWS::EC2::Subnet::Id'
    Description: 'The subnet the EC2 instance is launched into.'
  AssumeRole:
    Type: 'String'
    Description: 'Optional IAM role ARN to assume to get the IAM users from another account'
    Default: ''
  KeyName:
    Description: 'Optional key pair of the ec2-user to establish a SSH connection to the EC2 instance when things go wrong.'
    Type: String
    Default: ''
  OS:
    Description: 'Operating system'
    Type: String
    Default: 'AmazonLinux'
    AllowedValues:
    - AmazonLinux
    - AmazonLinux2
    - Ubuntu
    - SUSELinuxEnterpriseServer
    - RHEL
    - CentOS
Mappings:
  OSMap:
    AmazonLinux:
      RegionMap: RegionMapAmazonLinux
      UserData: |
        trap '/opt/aws/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        /opt/aws/bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /opt/aws/bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
    AmazonLinux2:
      RegionMap: RegionMapAmazonLinux2
      UserData: |
        trap '/opt/aws/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        /opt/aws/bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /opt/aws/bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
    Ubuntu:
      RegionMap: RegionMapUbuntu
      UserData: |
        trap '/usr/local/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        apt-get update
        apt-get -y install python-setuptools
        mkdir aws-cfn-bootstrap-latest
        curl -s -m 60 https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz | tar xz -C aws-cfn-bootstrap-latest --strip-components 1
        easy_install aws-cfn-bootstrap-latest
        /usr/local/bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /usr/local/bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
    SUSELinuxEnterpriseServer:
      RegionMap: RegionMapSUSELinuxEnterpriseServer
      UserData: |
        trap '/usr/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        mkdir aws-cfn-bootstrap-latest
        curl -s -m 60 https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz | tar xz -C aws-cfn-bootstrap-latest --strip-components 1
        easy_install aws-cfn-bootstrap-latest
        /usr/bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /usr/bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
    RHEL:
      RegionMap: RegionMapRHEL
      UserData: |
        trap '/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        mkdir aws-cfn-bootstrap-latest
        curl -s -m 60 https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz | tar xz -C aws-cfn-bootstrap-latest --strip-components 1
        easy_install aws-cfn-bootstrap-latest
        /bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
    CentOS:
      RegionMap: RegionMapCentOS
      UserData: |
        trap '/bin/cfn-signal -e 1 --stack=${STACKNAME} --region=${REGION} --resource=Instance' ERR
        mkdir aws-cfn-bootstrap-latest
        curl -s -m 60 https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz | tar xz -C aws-cfn-bootstrap-latest --strip-components 1
        easy_install aws-cfn-bootstrap-latest
        /bin/cfn-init --verbose --stack=${STACKNAME} --region=${REGION} --resource=Instance
        /bin/cfn-signal -e 0 --stack=${STACKNAME} --region=${REGION} --resource=Instance
  RegionMapAmazonLinux:
    'ap-south-1':
      AMI: 'ami-531a4c3c'
    'eu-west-3':
      AMI: 'ami-8ee056f3'
    'eu-west-2':
      AMI: 'ami-403e2524'
    'eu-west-1':
      AMI: 'ami-d834aba1'
    'ap-northeast-2':
      AMI: 'ami-863090e8'
    'ap-northeast-1':
      AMI: 'ami-ceafcba8'
    'sa-east-1':
      AMI: 'ami-84175ae8'
    'ca-central-1':
      AMI: 'ami-a954d1cd'
    'ap-southeast-1':
      AMI: 'ami-68097514'
    'ap-southeast-2':
      AMI: 'ami-942dd1f6'
    'eu-central-1':
      AMI: 'ami-5652ce39'
    'us-east-1':
      AMI: 'ami-97785bed'
    'us-east-2':
      AMI: 'ami-f63b1193'
    'us-west-1':
      AMI: 'ami-824c4ee2'
    'us-west-2':
      AMI: 'ami-f2d3638a'
  RegionMapAmazonLinux2:
    'ap-south-1':
      AMI: 'ami-3b2f7954'
    'eu-west-3':
      AMI: 'ami-5ce55321'
    'eu-west-2':
      AMI: 'ami-6d263d09'
    'eu-west-1':
      AMI: 'ami-db1688a2'
    'ap-northeast-2':
      AMI: 'ami-3e04a450'
    'ap-northeast-1':
      AMI: 'ami-c2680fa4'
    'sa-east-1':
      AMI: 'ami-f1337e9d'
    'ca-central-1':
      AMI: 'ami-7549cc11'
    'ap-southeast-1':
      AMI: 'ami-4f89f533'
    'ap-southeast-2':
      AMI: 'ami-38708c5a'
    'eu-central-1':
      AMI: 'ami-1b2bb774'
    'us-east-1':
      AMI: 'ami-428aa838'
    'us-east-2':
      AMI: 'ami-710e2414'
    'us-west-1':
      AMI: 'ami-4a787a2a'
    'us-west-2':
      AMI: 'ami-7f43f307'
  RegionMapUbuntu:
    'ap-south-1':
      AMI: 'ami-5d055232'
    'eu-west-3':
      AMI: 'ami-5e0eb923'
    'eu-west-2':
      AMI: 'ami-d7aab2b3'
    'eu-west-1':
      AMI: 'ami-4d46d534'
    'ap-northeast-2':
      AMI: 'ami-67973709'
    'ap-northeast-1':
      AMI: 'ami-d39a02b5'
    'sa-east-1':
      AMI: 'ami-1157157d'
    'ca-central-1':
      AMI: 'ami-f0870294'
    'ap-southeast-1':
      AMI: 'ami-325d2e4e'
    'ap-southeast-2':
      AMI: 'ami-37df2255'
    'eu-central-1':
      AMI: 'ami-af79ebc0'
    'us-east-1':
      AMI: 'ami-41e0b93b'
    'us-east-2':
      AMI: 'ami-2581aa40'
    'us-west-1':
      AMI: 'ami-79aeae19'
    'us-west-2':
      AMI: 'ami-1ee65166'
  RegionMapSUSELinuxEnterpriseServer:
    'ap-south-1':
      AMI: 'ami-f7267298'
    'eu-west-3':
      AMI: 'ami-f312a58e'
    'eu-west-2':
      AMI: 'ami-fbcad29f'
    'eu-west-1':
      AMI: 'ami-32b6214b'
    'ap-northeast-2':
      AMI: 'ami-2eff5f40'
    'ap-northeast-1':
      AMI: 'ami-bddd41db'
    'sa-east-1':
      AMI: 'ami-b1a1e2dd'
    'ca-central-1':
      AMI: 'ami-61dc5905'
    'ap-southeast-1':
      AMI: 'ami-ce7006b2'
    'ap-southeast-2':
      AMI: 'ami-15e81a77'
    'eu-central-1':
      AMI: 'ami-7215851d'
    'us-east-1':
      AMI: 'ami-a03869da'
    'us-east-2':
      AMI: 'ami-75143f10'
    'us-west-1':
      AMI: 'ami-934242f3'
    'us-west-2':
      AMI: 'ami-6bc56f13'
  RegionMapRHEL:
    'ap-south-1':
      AMI: 'ami-e41b618b'
    'eu-west-3':
      AMI: 'ami-39902744'
    'eu-west-2':
      AMI: 'ami-a1f5e4c5'
    'eu-west-1':
      AMI: 'ami-bb9a6bc2'
    'ap-northeast-2':
      AMI: 'ami-0f5a8361'
    'ap-northeast-1':
      AMI: 'ami-30ef0556'
    'sa-east-1':
      AMI: 'ami-a789ffcb'
    'ca-central-1':
      AMI: 'ami-dad866be'
    'ap-southeast-1':
      AMI: 'ami-10bb2373'
    'ap-southeast-2':
      AMI: 'ami-ccecf5af'
    'eu-central-1':
      AMI: 'ami-d74be5b8'
    'us-east-1':
      AMI: 'ami-c998b6b2'
    'us-east-2':
      AMI: 'ami-cfdafaaa'
    'us-west-1':
      AMI: 'ami-66eec506'
    'us-west-2':
      AMI: 'ami-9fa343e7'
  RegionMapCentOS:
    'ap-south-1':
      AMI: 'ami-a691d8c9'
    'eu-west-2':
      AMI: 'ami-d5213fb1'
    'eu-west-1':
      AMI: 'ami-147fc16d'
    'ap-northeast-2':
      AMI: 'ami-56a40238'
    'ap-northeast-1':
      AMI: 'ami-1b27a37d'
    'sa-east-1':
      AMI: 'ami-284d0a44'
    'ca-central-1':
      AMI: 'ami-161ea572'
    'eu-central-1':
      AMI: 'ami-8f62ece0'
    'us-east-1':
      AMI: 'ami-95096eef'
    'us-east-2':
      AMI: 'ami-2d103948'
    'us-west-1':
      AMI: 'ami-c0bf85a0'
    'us-west-2':
      AMI: 'ami-02c71d7a'
Conditions:
  UseCrossAccountIAM: !Not [!Equals [!Ref AssumeRole, '']]
  UseLocalIAM: !Equals [!Ref AssumeRole, '']
  HasKeyName: !Not [!Equals [!Ref KeyName, '']]
Resources:
  SecurityGroup:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: ssh
      VpcId: !Ref VPC
      SecurityGroupIngress:
      - CidrIp: '0.0.0.0/0'
        IpProtocol: tcp
        FromPort: 22
        ToPort: 22
  InstanceProfile:
    Type: 'AWS::IAM::InstanceProfile'
    Properties:
      Roles:
      - !Ref Role
  Role:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Principal:
            Service: 'ec2.amazonaws.com'
          Action: 'sts:AssumeRole'
      Path: /
  CrossAccountRolePolicy:
    Type: 'AWS::IAM::Policy'
    Condition: UseCrossAccountIAM
    Properties:
      PolicyName: crossaccountiam
      PolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Action: 'sts:AssumeRole'
            Resource: !Ref AssumeRole
      Roles:
        - !Ref Role
  LocalRolePolicy:
    Type: 'AWS::IAM::Policy'
    Condition: UseLocalIAM
    Properties:
      PolicyName: iam
      PolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Effect: Allow
          Action: 
          - 'iam:ListUsers'
          - 'iam:GetGroup'
          Resource: '*'
        - Effect: Allow
          Action:
          - 'iam:ListSSHPublicKeys'
          - 'iam:GetSSHPublicKey'
          Resource: !Sub 'arn:aws:iam::${AWS::AccountId}:user/*'
        - Effect: Allow
          Action: 'ec2:DescribeTags'
          Resource: '*'
      Roles:
        - !Ref Role
  Instance:
    Type: AWS::EC2::Instance
    Metadata:
      'AWS::CloudFormation::Init':
        configSets:
          default: [!Sub 'prepare${OS}', install]
        prepareAmazonLinux:
          packages:
            yum:
              git: []
        prepareAmazonLinux2:
          packages:
            yum:
              git: []
        prepareUbuntu:
          packages:
            apt:
              git: []
              awscli: []
        prepareSUSELinuxEnterpriseServer: {}
        prepareRHEL:
          packages:
            yum:
              git: []
              unzip: []
          commands:
            a_download:
              command: 'curl "https://s3.amazonaws.com/aws-cli/awscli-bundle.zip" -o "awscli-bundle.zip"'
              cwd: '/tmp'
            b_extract:
              command: 'unzip awscli-bundle.zip'
              cwd: '/tmp'
            c_install:
              command: './awscli-bundle/install -i /usr/local/aws -b /bin/aws'
              cwd: '/tmp'
        prepareCentOS:
          packages:
            rpm:
              epel: 'http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm'
            yum:
              git: []
              awscli: []
        install:
          files:
            '/opt/install.sh':
              source: 'https://raw.githubusercontent.com/widdix/aws-ec2-ssh/master/install.sh'
              mode: '000755'
              owner: root
              group: root
          commands:
            a_install:
              command: !Sub './install.sh -a "${AssumeRole}"'
              cwd: '/opt'
    Properties:
      ImageId: !FindInMap [!FindInMap [OSMap, !Ref OS, RegionMap], !Ref 'AWS::Region', AMI]
      IamInstanceProfile: !Ref InstanceProfile
      InstanceType: 't2.micro'
      KeyName: !If [HasKeyName, !Ref KeyName, !Ref 'AWS::NoValue']
      UserData:
        'Fn::Base64': !Sub
          - |
              #!/bin/bash -ex
              export REGION=${AWS::Region}
              export STACKNAME=${AWS::StackName}
              ${UserData}
          - UserData: !FindInMap [OSMap, !Ref OS, UserData]
      NetworkInterfaces:
      - AssociatePublicIpAddress: true
        DeleteOnTermination: true
        SubnetId: !Ref Subnet
        DeviceIndex: 0
        GroupSet:
        - !Ref SecurityGroup
      Tags:
      - Key: Name
        Value: 'AWS EC2 SSH access with IAM showcase'
    CreationPolicy:
      ResourceSignal:
        Count: 1
        Timeout: PT20M
Outputs:
  PublicName:
    Description: 'The public name of the EC2 instance.'
    Value: !GetAtt 'Instance.PublicDnsName'