AWSTemplateFormatVersion: 2010-09-09
Description: AWS CloudFormation Template for doccano.
Resources:
  AppSG:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: 'for the app nodes that allow ssh, http and docker ports'
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: '80'
          ToPort: '80'
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: '443'
          ToPort: '443'
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: '22'
          ToPort: '22'
          CidrIp: 0.0.0.0/0
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 116a7f7b-14c5-489a-a3c8-faf276be7ab0
  App:
    Type: 'AWS::EC2::Instance'
    Properties:
      InstanceType: !Ref InstanceType
      ImageId: !Ref Ubuntu16Ami
      KeyName: !Ref KeyName
      SecurityGroups:
        - !Ref AppSG
      UserData: !Base64 
        'Fn::Join':
          - ''
          - - |
              #!/usr/bin/env bash
            - |
              sudo apt update
            - >
              sudo apt install -y apt-transport-https ca-certificates curl
              software-properties-common
            - >
              curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo
              apt-key add -
            - >
              sudo add-apt-repository "deb [arch=amd64]
              https://download.docker.com/linux/ubuntu bionic stable"
            - |
              sudo apt update
            - |
              apt-cache policy docker-ce
            - |
              sudo apt install -y docker-ce
            - |
              sudo usermod -aG docker ${USER}
            - |
              touch /env.list
            - sudo tee -a /env.list <<< ADMIN=
            - !Ref AdminUserName
            - |+

            - sudo tee -a /env.list <<< EMAIL=
            - !Ref AdminEmail
            - |+

            - sudo tee -a /env.list <<< PASSWORD=
            - !Ref AdminPassword
            - |+

            - sudo tee -a /env.list <<< DEBUG=
            - !Ref Debug
            - |+

            - sudo tee -a /env.list <<< SECRET_KEY=
            - !Ref SecretKey
            - |+

            - sudo tee -a /env.list <<< EMAIL_USE_TLS=
            - !Ref EMailUseTSL
            - |+

            - sudo tee -a /env.list <<< EMAIL_HOST=
            - !Ref EMailHost
            - |+

            - sudo tee -a /env.list <<< EMAIL_PORT=
            - !Ref EMailHostPort
            - |+

            - sudo tee -a /env.list <<< EMAIL_HOST_USER=
            - !Ref EMailHostUser
            - |+

            - sudo tee -a /env.list <<< EMAIL_HOST_PASSWORD=
            - !Ref EMailHostPassword
            - |+

            - sudo tee -a /env.list <<< WORKERS=
            - !Ref WorkersCount
            - |+

            - sudo tee -a /env.list <<< DEFAULT_FROM_EMAIL=
            - !Ref FromEmail
            - |+

            - sudo tee -a /env.list <<< DOCKER_IMAGE=
            - !Ref DockerImageName
            - |+

            - |
              set -a
            - |
              source /env.list
            - |
              set +a
            - |
              sudo docker pull ${DOCKER_IMAGE}
            - >
              sudo docker run -d --name doccano --env-file /env.list -p 80:8000
              ${DOCKER_IMAGE}
            - >
              sleep 3 && sudo docker exec doccano tools/create-admin.sh ${ADMIN} ${EMAIL}
              ${PASSWORD}
    Metadata:
      'AWS::CloudFormation::Designer':
        id: 3547c02e-5393-4b26-a9af-6f00dc2cbcdb
  DescribeImagesRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Action: sts:AssumeRole
            Effect: Allow
            Principal:
              Service: lambda.amazonaws.com
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
      Policies:
        - PolicyName: DescribeImages
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Action: ec2:DescribeImages
                Effect: Allow
                Resource: "*"
  GetLatestAMI:
    Type: AWS::Lambda::Function
    Properties:
      Runtime: python3.6
      Handler: index.handler
      Role: !Sub ${DescribeImagesRole.Arn}
      Timeout: 60
      Code:
        ZipFile: |
          import boto3
          import cfnresponse
          import json
          import traceback

          def handler(event, context):
            try:
              response = boto3.client('ec2').describe_images(
                  Owners=[event['ResourceProperties']['Owner']],
                  Filters=[
                    {'Name': 'name', 'Values': [event['ResourceProperties']['Name']]},
                    {'Name': 'architecture', 'Values': [event['ResourceProperties']['Architecture']]},
                    {'Name': 'root-device-type', 'Values': ['ebs']},
                  ],
              )

              amis = sorted(response['Images'],
                            key=lambda x: x['CreationDate'],
                            reverse=True)
              id = amis[0]['ImageId']

              cfnresponse.send(event, context, cfnresponse.SUCCESS, {}, id)
            except:
              traceback.print_last()
              cfnresponse.send(event, context, cfnresponse.FAIL, {}, "ok")
  Ubuntu16Ami:
    Type: Custom::FindAMI
    Properties:
      ServiceToken: !Sub ${GetLatestAMI.Arn}
      Owner: "099720109477"
      Name: "ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-20190913"
      Architecture: "x86_64"
Metadata:
  'AWS::CloudFormation::Designer':
    116a7f7b-14c5-489a-a3c8-faf276be7ab0:
      size:
        width: 60
        height: 60
      position:
        x: 60
        'y': 210
      z: 1
      embeds: []
    3547c02e-5393-4b26-a9af-6f00dc2cbcdb:
      size:
        width: 60
        height: 60
      position:
        x: 180
        'y': 210
      z: 1
      embeds: []
      isassociatedwith:
        - 116a7f7b-14c5-489a-a3c8-faf276be7ab0
Parameters:
  InstanceType:
    Description: Server EC2 instance type
    Type: String
    Default: t2.micro
    AllowedValues:
      - t1.micro
      - t2.micro
      - t2.small
      - t2.medium
      - t3.micro
      - t3.small
      - t3.medium
    ConstraintDescription: must be a valid EC2 instance type.
  KeyName:
    Description: Name of an EC2 KeyPair to enable SSH access to the instance.
    Type: 'AWS::EC2::KeyPair::KeyName'
    ConstraintDescription: must be the name of an existing EC2 KeyPair.
  AdminUserName:
    Description: The admin account user name
    Default: 'admin'
    Type: String
    MinLength: 1
    MaxLength: 16
    AllowedPattern: '[a-zA-Z][a-zA-Z0-9]*'
  AdminEmail:
    Default: admin@gmail.com
    Description: The admin account user email
    Type: String
    AllowedPattern: '^[\x20-\x45]?[\w-\+]+(\.[\w]+)*@[\w-]+(\.[\w]+)*(\.[a-z]{2,})$'
  AdminPassword:
    Description: The admin account password
    Type: String
    NoEcho: true
    MinLength: 1
    MaxLength: 16
    AllowedPattern: '^[a-zA-Z0-9]*$'
  Debug:
    Default: 'False'
    AllowedValues:
      - 'False'
      - 'True'
    Description: Debug mode or not
    Type: String
    AllowedPattern: '^[a-zA-Z0-9]*$'
  SecretKey:
    Default: zICc59rlKXmlFRpG
    Description: Secret key for Django
    Type: String
    AllowedPattern: '^[a-zA-Z0-9]*$'
  EMailUseTSL:
    Default: 'False'
    AllowedValues:
      - 'False'
      - 'True'
    Description: SMTP will use TSL
    Type: String
    AllowedPattern: '^[a-zA-Z0-9]*$'
  EMailHost:
    Description: SMTP Host
    Type: String
    AllowedPattern: '^[\w-]+(\.[\w-]+)*(\.[a-z]{2,})$'
  EMailHostUser:
    Description: SMTP Host User
    Type: String
    MinLength: 1
    MaxLength: 25
    AllowedPattern: '^[a-zA-Z0-9][a-zA-Z0-9]{1,25}$'
  EMailHostPassword:
    Description: SMTP Host User password
    Type: String
    NoEcho: true
    MinLength: 0
    MaxLength: 60
    AllowedPattern: '^\p{Graph}+$'
  EMailHostPort:
    Description: SMTP Port
    Type: String
    MinLength: 1
    MaxLength: 5
    AllowedPattern: '^\d+$'
  WorkersCount:
    Description: Workers Count
    Type: String
    MinLength: 1
    MaxLength: 3
    AllowedPattern: '^\d+$'
  FromEmail:
    Default: webmaster@localhost
    Description: The email used to send from singup messages
    Type: String
    AllowedPattern: '^[\x20-\x45]?[\w-\+]+(\.[\w]+)*@[\w-]+(\.[\w]+)*(\.[a-z]{2,})?$'
  DockerImageName:
    Default: doccano/doccano:latest
    Description: The Docker image name
    Type: String
    AllowedPattern: '^[\w_-]+/[\w_-]+:[\w_-]+$'
Outputs:
  PublicDNS:
    Value: !GetAtt 
      - App
      - PublicDnsName
    Description: Newly created server DNS address