Automating-Infrasturcture-Deployment-With-CloudFormation/lab-application.yaml at main · mikeosei5177/Automating-Infrasturcture-Deployment-With-CloudFormation · GitHub

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AWSTemplateFormatVersion: 2010-09-09
Description: >-
  Application Template: Demonstrates how to reference resources from a different stack.
  This template provisions an EC2 instance in a VPC Subnet provisioned in a different stack.

# This template creates:
#   Amazon EC2 instance
#   Security Group

######################
# Parameters section
######################

Parameters:

  NetworkStackName:
    Description: >-
      Name of an active CloudFormation stack that contains the networking
      resources, such as the VPC and subnet that will be used in this stack.
    Type: String
    MinLength: 1
    MaxLength: 255
    AllowedPattern: '^[a-zA-Z][-a-zA-Z0-9]*$'
    Default: lab-network

  AmazonLinuxAMIID:
    Type: AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>
    Default: /aws/service/ami-amazon-linux-latest/amzn2-ami-hvm-x86_64-gp2

######################
# Resources section
######################

Resources:

  WebServerInstance:
    Type: AWS::EC2::Instance
    Metadata:
      'AWS::CloudFormation::Init':
        configSets:
          All:
            - ConfigureSampleApp
        ConfigureSampleApp:
          packages:
            yum:
              httpd: []
          files:
            /var/www/html/index.html:
              content: |
                <img src="https://s3.amazonaws.com/cloudformation-examples/cloudformation_graphic.png" alt="AWS CloudFormation Logo"/>
                <h1>Congratulations, you have successfully launched the AWS CloudFormation sample.</h1>
              mode: 000644
              owner: apache
              group: apache
          services:
            sysvinit:
              httpd:
                enabled: true
                ensureRunning: true
    Properties:
      InstanceType: t2.micro
      ImageId: !Ref AmazonLinuxAMIID
      NetworkInterfaces:
        - GroupSet:
            - !Ref WebServerSecurityGroup
          AssociatePublicIpAddress: true
          DeviceIndex: 0
          DeleteOnTermination: true
          SubnetId:
            Fn::ImportValue:
              !Sub ${NetworkStackName}-SubnetID
      Tags:
        - Key: Name
          Value: Web Server
      UserData:
        Fn::Base64: !Sub |
          #!/bin/bash -xe
          yum update -y aws-cfn-bootstrap
          # Install the files and packages from the metadata
          /opt/aws/bin/cfn-init -v --stack ${AWS::StackName} --resource WebServerInstance --configsets All --region ${AWS::Region}
          # Signal the status from cfn-init
          /opt/aws/bin/cfn-signal -e $? --stack ${AWS::StackName} --resource WebServerInstance --region ${AWS::Region}
    CreationPolicy:
      ResourceSignal:
        Timeout: PT5M

  DiskVolume:
    Type: AWS::EC2::Volume
    Properties:
      Size: 100
      AvailabilityZone: !GetAtt WebServerInstance.AvailabilityZone
      Tags:
        - Key: Name
          Value: Web Data
    DeletionPolicy: Snapshot

  DiskMountPoint:
    Type: AWS::EC2::VolumeAttachment
    Properties:
      InstanceId: !Ref WebServerInstance
      VolumeId: !Ref DiskVolume
      Device: /dev/sdh

  WebServerSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Enable HTTP ingress
      VpcId:
        Fn::ImportValue:
          !Sub ${NetworkStackName}-VPCID
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
      Tags:
        - Key: Name
          Value: Web Server Security Group

######################
# Outputs section
######################

Outputs:
  URL:
    Description: URL of the sample website
    Value: !Sub 'http://${WebServerInstance.PublicDnsName}'