77 lines
1.9 KiB
Markdown
77 lines
1.9 KiB
Markdown
# out-of-tree/qemu
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Qemu wrapper for kernel-related CI tasks. Supports *GNU/Linux* and *macOS*.
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Features:
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* Uses upstream virtualization -- KVM in GNU/Linux and Hypervisor.framework in macOS.
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* Run files and kernel modules directly from local filesystem. No need to copy byself!
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* Run commands inside qemu virtual machine at the same way as you run in it locally.
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## Installation
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$ go get github.com/jollheef/out-of-tree/qemu
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### Generate root image
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First of all we need to generate rootfs for run qemu.
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#### GNU/Linux
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$ sudo apt install -y debootstrap qemu
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$ sudo qemu-debian-img generate sid.img
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#### macOS
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Note: qemu on macOS since v2.12 (24 April 2018) supports Hypervisor.framework.
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$ brew install qemu
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Because it's a very complicated to debootstrap qemu images from macOS,
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preferred way is to use Vagrant with any hypervisor.
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$ brew cask install vagrant
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$ cd $GOPATH/src/github.com/jollheef/out-of-tree/qemu/tools/qemu-debian-image
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$ vagrant up && vagrant destroy -f
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bionic.img, vmlinuz-bionic and initrd-bionic will be created in current directory.
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### Fill configuration file
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$ $EDITOR $GOPATH/src/github.com/jollheef/out-of-tree/qemu/test.config.go
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### Run tests
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$ go test -v
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## Usage
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$ go get github.com/jollheef/out-of-tree/qemu
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Minimal example:
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kernel := qemu.Kernel{
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Name: "Some kernel name",
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KernelPath: "/path/to/vmlinuz",
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InitrdPath: "/path/to/initrd", // if required
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}
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q, err := qemu.NewQemuSystem(qemu.X86_64, kernel, "/path/to/qcow2")
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if err != nil {
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log.Fatal(err)
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}
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if err = q.Start(); err != nil {
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log.Fatal(err)
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}
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defer q.Stop()
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output, err = q.Command("root", "echo Hello, World!")
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if err != nil {
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log.Fatal(err)
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}
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// output == "Hello, World!\n"
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More information and list of all functions see at go documentation project, or just run locally:
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$ godoc github.com/jollheef/out-of-tree/qemu
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