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The stages described above are just an example and could be fewer or more depending on the application. For example, we could have more environments for testing before deploying to production. For the rest of the blog, we will describe how some of these stages can be configured for deploying the twitter streaming application. All source code referenced in the rest of the article can be accessed here.
In this tutorial, we will configure AWS CodePipeline to build an ECR image and deploy the latest version to lambda container. The application code will stream tweets using Tweepy, a Python library for accessing the Twitter API. First we need to setup CodePipeline and the various stages to deploy application code to lambda image which will stream tweets when invoked. The intended devops architecture is as below.