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Update kernel install UX (#22)

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This change updates the UX when we install required dependencies at
first launch


### Fresh install - respond `y` to prompt
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: y
Installing kernel...
```


### Fresh install - respond `n` to prompt and then run the provided
command
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: n
Please use the `container system kernel set --recommended` command to configure the default kernel

➜ bin/container system kernel set --recommended
Installing the recommended kernel from https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz...
```


### Fresh install - respond `n` to prompt and then run a container
```
➜ bin/container system start
Verifying apiserver is running...
Installing base container filesystem...
No default kernel configured.
Install the recommended default kernel from [https://github.com/kata-containers/kata-containers/releases/download/3.17.0/kata-static-3.17.0-arm64.tar.xz]? [Y/n]: n
Please use the `container system kernel set --recommended` command to configure the default kernel

➜ bin/container run alpine uname
Error: notFound: "Default kernel not configured for architecture arm64. Please use the `container system kernel set` command to configure it
```

---------

Signed-off-by: Aditya Ramani <a_ramani@apple.com>
This commit is contained in:
Aditya Ramani
2025-06-05 18:09:36 -07:00
committed by GitHub
parent 0a71d8e95e
commit 007f9a41f7
6 changed files with 48 additions and 49 deletions
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Sources/APIServer/Kernel/KernelService.swift
+7 -1
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@@ -42,7 +42,13 @@ actor KernelService {
let kFile = url.resolvingSymlinksInPath()
let destPath = self.kernelDirectory.appendingPathComponent(kFile.lastPathComponent)
try FileManager.default.copyItem(at: kFile, to: destPath)
try self.setDefaultKernel(name: kFile.lastPathComponent, platform: platform)
try Task.checkCancellation()
do {
try self.setDefaultKernel(name: kFile.lastPathComponent, platform: platform)
} catch {
try? FileManager.default.removeItem(at: destPath)
throw error
}
}
/// Copies a kernel binary from inside of tar file into the managed kernels directory