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January 25, 2023 03:43
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CFN stack to create EC2 Instances
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| AWSTemplateFormatVersion: "2010-09-09" | |
| Parameters: | |
| EnvironmentTypeParameter: | |
| Description: Environment Type | |
| Type: String | |
| Default: dev | |
| InstanceTypeParameter: | |
| Description: Instance type parameter | |
| Type: String | |
| Default: t2.micro | |
| InstanceSSHKey: | |
| Type: AWS::EC2::KeyPair::KeyName | |
| Description: Name of the existing key pair | |
| OwnIp: | |
| Type: String | |
| Description: Enter your ip | |
| Default: 87.201.52.139/32 | |
| InstanceAZ: | |
| Type: AWS::EC2::AvailabilityZone::Name | |
| Description: Instance availability zone | |
| Mappings: | |
| RegionMap: | |
| us-east-1: | |
| "32": "ami-0149b2da6ceec4bb0" | |
| "64": "ami-08c40ec9ead489470" | |
| eu-west-1: | |
| "32": "ami-0fd8802f94ed1c969" | |
| "64": "ami-096800910c1b781ba" | |
| Environment: | |
| dev: | |
| "TagKeyName": "EnvironmentType" | |
| "TagKeyValue": "Devo" | |
| prod: | |
| "TagKeyName": "EnvironmentType" | |
| "TagKeyValue": "Prod" | |
| # https://stackoverflow.com/questions/41106216/negate-a-condition-in-cloudformation-template | |
| Conditions: | |
| CreateProdResources: !Equals [!Ref EnvironmentTypeParameter, prod] | |
| CreateDevoResources: !Not [Condition: CreateProdResources] | |
| Resources: | |
| DevoEc2Instance: | |
| Type: "AWS::EC2::Instance" | |
| Condition: CreateDevoResources | |
| Properties: | |
| AvailabilityZone: !Ref InstanceAZ | |
| ImageId: !FindInMap [RegionMap, !Ref "AWS::Region", 64] | |
| KeyName: !Ref InstanceSSHKey | |
| InstanceType: !Ref InstanceTypeParameter | |
| SecurityGroups: | |
| - !Ref SSHAndHttpSecurityGroup | |
| UserData: | |
| Fn::Base64: | | |
| #!/bin/bash -xe | |
| apt update | |
| apt install -y nginx | |
| systemctl restart nginx | |
| echo "<h1>Hello World from user data @ $(hostname -f) -- devo</h1>" > /var/www/html/index.html | |
| Tags: | |
| - Key: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyName] | |
| Value: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyValue] | |
| - Key: Name | |
| Value: Mapping Dev Instance | |
| ProdEc2Instance: | |
| Type: "AWS::EC2::Instance" | |
| Condition: CreateProdResources | |
| Properties: | |
| AvailabilityZone: !Ref InstanceAZ | |
| KeyName: !Ref InstanceSSHKey | |
| ImageId: !FindInMap [RegionMap, !Ref "AWS::Region", 64] | |
| InstanceType: !Ref InstanceTypeParameter | |
| SecurityGroups: | |
| - !Ref SSHAndHttpSecurityGroup | |
| UserData: | |
| Fn::Base64: | | |
| #!/bin/bash -xe | |
| apt update | |
| apt install -y nginx | |
| systemctl restart nginx | |
| echo "<h1>Hello World from user data @ $(hostname -f) -- prod</h1>" > /var/www/html/index.html | |
| Tags: | |
| - Key: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyName] | |
| Value: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyValue] | |
| - Key: Name | |
| Value: Mapping Prod Instance | |
| SSHAndHttpSecurityGroup: | |
| Type: AWS::EC2::SecurityGroup | |
| Properties: | |
| GroupDescription: SSH and Http | |
| SecurityGroupIngress: | |
| # Allow Http anywhere | |
| - CidrIp: 0.0.0.0/0 | |
| FromPort: 80 | |
| IpProtocol: tcp | |
| ToPort: 80 | |
| # Allow ssh from my ip | |
| - CidrIp: !Ref OwnIp | |
| FromPort: 22 | |
| IpProtocol: tcp | |
| ToPort: 22 | |
| # Allow connect from ec2 ssh manager | |
| - CidrIp: 18.202.216.48/29 | |
| FromPort: 22 | |
| IpProtocol: tcp | |
| ToPort: 22 | |
| Tags: | |
| - Key: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyName] | |
| Value: !FindInMap [Environment, !Ref EnvironmentTypeParameter, TagKeyValue] | |
| - Key: Name | |
| Value: SSHAndHttpSecurityGroup | |
| - Key: Description | |
| Value: Allow SSH (My ip only) and Http (Anywhere) | |
| Outputs: | |
| DevoEc2InstanceId: | |
| Condition: CreateDevoResources | |
| Description: Devo Ec2 Instance id created | |
| Value: !Ref DevoEc2Instance | |
| Export: | |
| Name: ec2Instance | |
| ProdEc2InstanceId: | |
| Condition: CreateProdResources | |
| Description: Prod Ec2 Instance id created | |
| Value: !Ref ProdEc2Instance | |
| Export: | |
| Name: ec2Instance |
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