tenongene
commented
1 year ago The updated application is now available when accessed via the load balancer as before.
(Firefox)
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(Opera)
With the complete pipeline now in place from the GitLab code repository through to the instances in AWS, I made a change to the application page by adding a greeting in the html page. I then committed the changes and pushed them to the GitLab code repository.
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Push to the repository triggered the CI/CD pipeline which immediately began building the image.
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Successful completion of the pipeline resulted in a push of the new image to DockerHub, which then triggered the Webhook to send a post request to the lambda function URL, and thus invoking the lambda function.
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The lambda function executed by terminating the running EC2 instances.
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The Autoscaling group then began initializing new instances to replace the terminated ones, but the new instances will initialize by pulling the newly updated image.