Hello Docker | Ballerina Programming Language

Learn how to create a Docker image for your Ballerina code in this tutorial. Assuming you have Docker and prerequisites installed, we'll guide you through the process.

In the first part, we'll demonstrate writing a basic Ballerina resource function that serves a 'Hello World' message. Then, we'll dive into dockerizing it by using the Code to Cloud plugin. This straightforward Ballerina code does not initially include Docker elements.

To integrate Docker, use the 'bal build –cloud=docker' command to create the container. Run 'docker run' to start the container and test it using 'curl'.

In the next step, we enhance the container by configuring it to read a greeting from a text file. By modifying the code and creating 'greeting.txt', we make the greeting customizable. We illustrate how to specify image repository, name, version, and copy files within 'Cloud.toml'.

Rebuild the container, run it, and test the HTTP service. This comprehensive tutorial offers valuable insights into Dockerizing Ballerina applications and customizing container elements.

Link to code in this video - https://github.com/xlight05/ballerina_c2c_playlist

If you have any questions or queries regarding Ballerina or this training, please feel free to reach out to us through our social media or community channels listed below.

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