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What are the steps involved in a CloudFormation Solution?

Deepika Sahu answered on December 18, 2022 Popularity 1/10 Helpfulness 1/10

answer What are the steps involved in a CloudFormation Solution?

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What are the steps involved in a CloudFormation Solution?

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Create or use an existing CloudFormation template using JSON or YAML format.
Save the code in an S3 bucket, which serves as a repository for the code.
Use AWS CloudFormation to call the bucket and create a stack on your template. 
CloudFormation reads the file and understands the services that are called, their order, the relationship between the services, and provisions the services one after the other.

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Contributed on Dec 18 2022

Deepika Sahu

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What are the steps involved in a CloudFormation Solution?

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Step 1: Pick a template.

Step 2: Make sure you have prepared any required items for the stack.

Step 3: Create the stack.

Step 4: Monitor the progress of stack creation.

Step 5: Use your stack resources.

Step 6: Clean up.

"Resources" : {
  ...    
  "WebServer": {
    "Type" : "AWS::EC2::Instance",
    "Properties": {
      "ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },
                        { "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
      "InstanceType"   : { "Ref" : "InstanceType" },
      "SecurityGroups" : [ {"Ref" : "WebServerSecurityGroup"} ],
      "KeyName"        : { "Ref" : "KeyName" },
      "UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
                     "#!/bin/bash -xe\n",
                     "yum update -y aws-cfn-bootstrap\n",

                     "/opt/aws/bin/cfn-init -v ",
                     "         --stack ", { "Ref" : "AWS::StackName" },
                     "         --resource WebServer ",
                     "         --configsets wordpress_install ",
                     "         --region ", { "Ref" : "AWS::Region" }, "\n",

                     "/opt/aws/bin/cfn-signal -e $? ",
                     "         --stack ", { "Ref" : "AWS::StackName" },
                     "         --resource WebServer ",
                     "         --region ", { "Ref" : "AWS::Region" }, "\n"
      ]]}}
    },
    ...
  },
  ...  
  "WebServerSecurityGroup" : {
    "Type" : "AWS::EC2::SecurityGroup",
    "Properties" : {
      "GroupDescription" : "Enable HTTP access via port 80 locked down to the load balancer + SSH access",
      "SecurityGroupIngress" : [
        {"IpProtocol" : "tcp", "FromPort" : 80, "ToPort" : 80, "CidrIp" : "0.0.0.0/0"},
        {"IpProtocol" : "tcp", "FromPort" : 22, "ToPort" : 22, "CidrIp" : { "Ref" : "SSHLocation"}}
      ]
    }
  },
  ...    
},

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/GettingStarted.Walkthrough.html

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Contributed on Feb 11 2023

Pragya Keshap

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What are the steps involved in a CloudFormation Solution?

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