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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
Jsonnet promises to be JSON plus templating, and that's exactly what it delivers. It allows you to include other files and has many useful features such as variables and functions. Jsonnet overall was a pretty decent experience, and we could've stopped there.
Helm is a package manager for Kubernetes. We like using it for third-party dependencies, but templating in Helm is not very good. It uses YAML, a whitespace-sensitive data language, and layers a generic text templating engine on top of it. Charts are typically full of boilerplate and indentation hacks.
Dhall is a functional configuration and programming language. Static typing and its purely functional nature are things we liked about Dhall, but for a configuration language, it can be comically verbose and difficult to read. The following YAML:
CUE is a young project with some rough edges, but we think CUE is the future of Kubernetes templating. Its adoption is growing quickly, with Dagger and Acorn as some of its recent adopters.
CUE is a configuration language that is statically typed and also supports validations. Like Jsonnet, it's a superset of JSON, but with many useful extensions such as comments, variables, modules, and of course types. It's not quite as powerful at templating as Jsonnet, it does not have functions, but so far we haven't run into serious roadblocks.