Application Hosting
Application Hosting allows you to deploy applications from source code right onto Kinsta infrastructure.
Within the context of Kinsta’s Application Hosting, an application is a set of instructions executed by a server to perform one or more tasks. Our current infrastructure is designed to serve and support the deployment of applications with a server behind the application.
For the best possible compatibility with our service, we recommend following the guidelines of The Twelve-Factor App (aka Cloud-Native apps).
Connect with other developers and find in-depth tutorials, tips, and best practices for applications in the Application Hosting category of our Kinsta Community forum.
Supported Languages
With Application Hosting, you can deploy almost any application. Here are the languages we support through Nixpacks or Buildpacks:
- Clojure
- Cobol
- Crystal
- C#/.NET
- Dart
- Deno
- Elixir
- F#
- Go
- Haskell
- Java
- Lunatic
- Node.js
- PHP
- Python
- Rust
- Swift
- Scala
- Zig
Quick Start Templates
We have Quick Start Templates available for these and other supported languages and frameworks, including some examples of how to send emails using PHP or Node.js.
Using a Dockerfile
You can deploy an application through Docker using a Dockerfile, which means you can package any configuration you’d like, and we’ll be able to run it for you. We also have hello world repositories with Dockerfiles.
Git Service Providers
When you add an application, you’ll need to select a Git service provider and repository from your account. You can choose from any (or all) of the following:
Pricing
Application Hosting is usage-based, so you only pay for the resources your application uses, based on the following:
- Bandwidth (egress only)
- Build time
- Application hosting pod usage
For information about how we calculate these, refer to Application Pricing.
Important Notes
Please keep the following in mind:
- During build time and runtime, your processes will have root access to their container. Our containers are isolated horizontally and vertically, providing sufficient protection even in this scenario. Regardless, root access is not advised, and we will likely remove that ability in the future, so please do not rely on having root access in the runtime environment of your application.
- For WordPress sites, we recommend that you still use our Managed WordPress Hosting as opposed to Application Hosting. Managed WordPress Hosting is built, designed, and optimized by Kinsta to serve WordPress sites. It includes everything you need out of the box, such as full-page caching, backups, and the ability to update plugins and themes easily.
Troubleshooting
If you’re having any trouble deploying your application, here are some important things to keep in mind and troubleshooting tips:
- Pods and processes running within them are ephemeral, which means that they cannot be used in place indefinitely and cannot be used to store data such as uploaded images, videos, etc. Files related to user content should be stored in persistent storage or third-party storage locations.
- If your application deployment fails during rollout, or your application fails to build, check out our guide for Failed Deployment.
- If you need to pause your application while you troubleshoot errors, you can do so on the Application Settings page (Applications > appname > Suspend application).
- Your application’s runtime logs can be found on the Logs page (Applications > appname > Logs).