Skip to content
Unikraft Cloud

Run a SolidJS/SolidStart app

This guide shows how to deploy a Solid Start app. To do so, follow these steps:

  1. Install the kraft CLI tool and a container runtime engine, e.g. Docker.

  2. Clone the examples repository and cd into the examples/node21-solid-start/ directory:

Terminal window
git clone https://github.com/kraftcloud/examples
cd examples/node21-solid-start/

Make sure to log into Unikraft Cloud by setting your token and a metro close to you. We use fra0 (Frankfurt, 🇩🇪) in this guide:

Terminal window
# Set Unikraft Cloud access token
export UKC_TOKEN=token
# Set metro to Frankfurt, DE
export UKC_METRO=fra0

When done, invoke the following command to deploy the application on Unikraft Cloud:

Terminal window
kraft cloud deploy -p 443:3000 -M 256 .

The output shows the instance URL and other details:

Terminal window
[●] Deployed successfully!
 │
 ├────────── name: node21-solid-start-lvoa2
 ├────────── uuid: 4e6ccb1f-0533-4dc1-be67-eca8dfc1f8c6
 ├───────── state: running
 ├─────────── url: https://long-star-1tms9h1z.fra0.kraft.host
 ├───────── image: node21-solid-start@sha256:eb2e79b2fc5c28bb43923a1fc4931db94ebc3f939a6fbe00d06189c0ae2e02fd
 ├───── boot time: 67.65 ms
 ├──────── memory: 256 MiB
 ├─────── service: long-star-1tms9h1z
 ├── private fqdn: node21-solid-start-lvoa2.internal
 ├──── private ip: 172.16.6.8
 └────────── args: /usr/bin/node /usr/src/server/index.mjs

In this case, the instance name is node21-solid-start-lvoa2 and the URL is https://long-star-1tms9h1z.fra0.kraft.host. They are different for each run. You can now point your browser at the URL to see your deployed instance.

At any point in time, you can list information about the instance:

Terminal window
kraft cloud instance list
NAME                      FQDN                                STATE    CREATED AT      IMAGE          MEMORY   ARGS                              BOOT TIME
node21-solid-start-lvoa2  long-star-1tms9h1z.fra0.kraft.host  running  1 minutes ago   node21-sol...  256 MiB  /usr/bin/node /usr/src/server...  67.65 ms

When done, you can remove the instance:

Terminal window
kraft cloud instance remove node21-solid-start-lvoa2

Customize your Application

To customize the application, update the files in the repository, listed below:

  • Kraftfile: the Unikraft Cloud specification
  • Dockerfile: the Docker-specified application filesystem
  • src/: server source files
spec: v0.6


runtime: node:21


rootfs: ./Dockerfile


cmd: ["/usr/bin/node", "/usr/src/server.js"]

Learn More

Use the --help option for detailed information on using Unikraft Cloud:

Terminal window
kraft cloud --help

Or visit the CLI Reference.