Uploading a Template on AWS CloudFormation

Uploading a Template on AWS CloudFormation

Anthony Nzuki Anthony Nzuki

Anthony Nzuki

AWS Cloud Technology Trainer| Digital Skills Trainer| Databases| 2X AWS Certified

发布日期: 2024年7月22日
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We'll be uploading the YAML template created on my previous blogpost. Comprised of an EC2 instance that has an Elastic IP and Security group attached

Here is the template created from the previous blogpost 

AWSTemplateFormatVersion: 2010-09-09
Description: Creating an ec2 instance that has an EIP and Security group attached to it

Resources:
  HTTpSShSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Allow HTTP and SSH traffic 
      GroupName: DemoSecurityGroup
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: 22
          ToPort: 22
          CidrIp: 0.0.0.0/0
  MyEC2Instance: 
    Type: AWS::EC2::Instance
    Properties: 
      ImageId: ami-04e5276ebb8451442   #check for the correct ami-id from the ec2 console 
      InstanceType: t2.micro
      Tags:
        - Key: Name
          Value: DevInstance
      UserData:
        Fn::Base64: |
          #!/bin/bash -xe
          yum update -y
          yum install -y httpd
          systemctl start httpd
          systemctl enable httpd
          echo '<html><h1>Hello From Your Web Server!</h1></html>' > /var/www/html/index.html
      SecurityGroups: 
        - !Ref HTTpSShSecurityGroup
  MyElasticIP:
    Type: AWS::EC2::EIP
    Properties:
      InstanceId: !Ref MyEC2Instance

Next step is to upload the template on the AWS CloudFormation console. But we will need to first log in to our AWS account first.

After logging in, search for 'CloudFormation' in the search box.

Once you're in the CloudFormation console, select 'Create Stack'

Then finally upload your template

click on 'Choose file' to upload your template then click 'Next'.

A new page will come up where you will be required to key in your stack name.

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After adding the stack name, you will be directed to the 'Configure Stack Options' page where you'll simply click 'Next'

The final step is to review your configurations on the 'Review and Create' page then click 'Submit'

This is the final page that shows the progress of your stack creation process


How to Monitor and Troubleshoot Stack Creation

  • CloudFormation Console: The CloudFormation console for every service you deploy will show real-time updates of all the resources created in your stack creation process. (A stack acts as a blueprint for your infrastructure and might include resources such as s3 buckets, ec2 instances, lambda functions, databases and more)
  • Events Tab: This tab contains information about each step in your resource creation process.
  • Status Checks: Monitor the stack status to ensure successful creation. If you intend to delete a resource or revert to your resource's previous version, you simply apply a rollback. It is a built-in feature that protects your infrastructure during stack creation or update fails.


In the next blogpost, we'll talk about CloudFormation Parameters. With Parameters, we get to create flexible templates that can be reused across multiple environments such as dev, test, and prod.


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