CloudFormationStack_PythonScript/ASGTemplate.yaml at main · divyag10/CloudFormationStack_PythonScript · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
AWSTemplateFormatVersion: '2010-09-09'
Description: CloudFormation template to create an Auto Scaling Group (ASG) using an
  EC2 Launch Template

Parameters:
  InstanceType:
    Description: EC2 instance type
    Type: String
    Default: t2.micro
    ConstraintDescription: Must be a valid EC2 instance type.

  AmiId:
    Description: Amazon Machine Image ID for the instance
    Type: String
    Default: ami-0984f4b9e98be44bf

Resources:
  # VPC Creation
  MyVPC:
    Type: AWS::EC2::VPC
    Properties:
      CidrBlock: 10.0.0.0/16
      EnableDnsSupport: true
      EnableDnsHostnames: true
      Tags:
      - Key: Name
        Value: MyVPC

  # Subnet Creation
  SubnetA:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: MyVPC
      CidrBlock: 10.0.1.0/24
      AvailabilityZone: !Select [0, !GetAZs '']
      MapPublicIpOnLaunch: true
      Tags:
      - Key: Name
        Value: SubnetA

  SubnetB:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: MyVPC
      CidrBlock: 10.0.2.0/24
      AvailabilityZone: !Select [1, !GetAZs '']
      MapPublicIpOnLaunch: true
      Tags:
      - Key: Name
        Value: SubnetB

  MySecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Allow SSH and HTTP access
      VpcId:
        Ref: MyVPC
      SecurityGroupIngress:
      - IpProtocol: tcp
        FromPort: 22
        ToPort: 22
        CidrIp: 0.0.0.0/0    # Allow SSH from any IP
      - IpProtocol: tcp
        FromPort: 80
        ToPort: 80
        CidrIp: 0.0.0.0/0    # Allow HTTP from any IP

  MyLaunchTemplate:
    Type: AWS::EC2::LaunchTemplate
    Properties:
      LaunchTemplateName: MyLaunchTemplate
      LaunchTemplateData:
        InstanceType:
          Ref: InstanceType
        ImageId:
          Ref: AmiId
        SecurityGroupIds:
        - Fn::GetAtt: MySecurityGroup.GroupId
        TagSpecifications:
        - ResourceType: instance
          Tags:
          - Key: Name
            Value: ASGInstance

  MyAutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      AutoScalingGroupName: awesomeASG
      LaunchTemplate:
        LaunchTemplateId:
          Ref: MyLaunchTemplate
        Version:
          Fn::GetAtt: MyLaunchTemplate.LatestVersionNumber
      MinSize: 1
      MaxSize: 3
      DesiredCapacity: 2
      VPCZoneIdentifier:
      - Ref: SubnetA
      - Ref: SubnetB
      Tags:
      - Key: Name
        Value: MyASGInstance
        PropagateAtLaunch: true

Outputs:
  VPCID:
    Description: ID of the created VPC
    Value:
      Ref: MyVPC
  AutoScalingGroupID:
    Description: ID of the created Auto Scaling Group
    Value:
      Ref: awesomeASG
  LaunchTemplateID:
    Description: ID of the created Launch Template
    Value:
      Ref: MyLaunchTemplate
  SecurityGroupID:
    Description: ID of the created Security Group
    Value:
      Ref: MySecurityGroup