{"id":2188,"date":"2022-07-13T03:08:48","date_gmt":"2022-07-13T03:08:48","guid":{"rendered":"https:\/\/www.checkmateq.com\/blog\/?p=2188"},"modified":"2023-08-03T06:47:28","modified_gmt":"2023-08-03T06:47:28","slug":"ec2-using-cloud-formation","status":"publish","type":"post","link":"https:\/\/www.checkmateq.com\/blog\/ec2-using-cloud-formation","title":{"rendered":"How to Launch an EC2 instance using Cloud Formation?"},"content":{"rendered":"

Cloud Formation<\/h3>\n

AWS Cloud<\/a> Formation is a Infrastructure as a Code tool, it means that you can create your cloud<\/a> infrastructure with a code\/syntax using cloud formation tool , you can use either json or yml templets where you declare which resource\u00a0 or service you want to deploy , cloud formation will use these templets and will create the declared resources on the cloud ,you can\u00a0 reuse this templets to deploy same infrastructure<\/a> or make changes\/upgrade\u00a0 to already deployed one’s , In this blog we will learn how to launch a EC2 instance using cloud formation with a yaml templete.<\/p>\n

Create a yaml file, something like server.yaml , server is the name of the yaml file I am creating , copy the below yaml syntax and save it, let’s understand it by going through each line<\/p>\n

 <\/p>\n

server.yaml<\/strong><\/p>\n

1  AWSTemplateFormatVersion: '2010-09-09'\r\n\r\n2  Resources:\r\n3   EC2Instance:\r\n4     Type: AWS::EC2::Instance\r\n5     Properties:\r\n6       InstanceType: t2.micro<\/strong>\r\n7       ImageId: \"ami-0186e3fec9b0283ee<\/strong>\"\r\n8       SecurityGroups:\r\n9         - !Ref InstanceSecurityGroup\r\n\r\n10   InstanceSecurityGroup:\r\n11     Type: AWS::EC2::SecurityGroup\r\n12     Properties:\r\n13       GroupDescription: Allow traffic on port 22(SSH) \r\n14       SecurityGroupIngress:\r\n15         - IpProtocol: tcp\r\n16           FromPort: 22\r\n17           ToPort: 22\r\n18           CidrIp: 0.0.0.0\/0\r\n<\/pre>\n
Line-1:\u00a0AWSTemplateFormatVersion: ‘2010-09-09’<\/strong><\/div>\n
here 2010-09-09 is the latest templet format version available, it indicates the capabilities of the templet, this is the only valid version available.<\/div>\n
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Line-2:<\/strong> Resources<\/div>\n
you will declare AWS resources to be deployed and their configuration such as ec2 instance, s3 bucket, Kubernetes<\/a> cluster<\/div>\n
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Line-3: EC2Instance<\/strong> it’s just a name that I gave for my reference or documentation and referring to it in the same yaml file, this will be reflected as a tag for the resource created, tags are useful in managing and searching your resources.<\/div>\n
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Line-4: Type: AWS::EC2::Instance<\/strong><\/div>\n
“Type” is the key word used to specify the resource type (like ec2 instance, load balancer, security group) that you want to deploy and “AWS::EC2::Instance” is the key word for ec2 instance, each resource will have a unique keyword you can get these keywords from AWS cloud formation\u00a0 documentation.<\/div>\n
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