Setting Up Elixir Clustering on Kamal with Hetzner

The article discusses the author's journey of deploying an Elixir application with clustering capabilities on Hetzner using Kamal. Initially, the application was deployed on Fly.io, and the author faced challenges in configuring clustering on Hetzner. They outline the initial setup process, including the creation of a private network and the use of libcluster_hcloud for establishing the clustering strategy with Hetzner API. Throughout the article, specific configurations and settings are provided, such as naming nodes correctly for distribution and handling private IPs within a Docker container. The author also shares troubleshooting tips and potential improvement suggestions, indicating that while they have made progress, the setup is not yet optimal. They welcome feedback and suggestions from readers.