From 1b4affb524536ca904f09b0de65fddad3be2a75b Mon Sep 17 00:00:00 2001
From: xengineering <me@xengineering.eu>
Date: Sun, 21 Jul 2024 17:20:57 +0200
Subject: Startup VM parallel to craft execution on host
This prepares moving the workbench to the virtual machine. It
furthermore adds the following command line arguments:
- image
- port
See `craft --help` or the init() function for details.
---
main.go | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/main.go b/main.go
index 913b5b5..f9d7d13 100644
--- a/main.go
+++ b/main.go
@@ -15,12 +15,16 @@ var (
repo = ""
commit = ""
task = ""
+ image = ""
+ port = ""
)
func init() {
flag.StringVar(&repo, "repo", "", "Source code as valid Git URL")
flag.StringVar(&commit, "commit", "", "Commit or commit-ish reference for checkout")
flag.StringVar(&task, "task", "", "Shell code to execute for the build")
+ flag.StringVar(&image, "image", "", "QEMU qcow2 image which contains the VM")
+ flag.StringVar(&port, "port", "", "localhost port which is connected to VM SSH server")
}
func main() {
@@ -31,6 +35,18 @@ func main() {
log.Println("Starting craft")
defer log.Println("Exiting craft")
+ vm := qemu()
+ err := vm.Start()
+ if err != nil {
+ log.Fatal(err)
+ }
+ defer func() {
+ err := vm.Process.Kill()
+ if err != nil {
+ log.Fatal(err)
+ }
+ }()
+
workbench := prepareWorkbench(repo, commit)
defer os.RemoveAll(workbench)
craft(workbench)
@@ -48,6 +64,30 @@ func runCommand(dir string, name string, args ...string) {
}
}
+func qemu() *exec.Cmd {
+ return exec.Command(
+ "qemu-system-x86_64",
+ "-enable-kvm",
+ "-m",
+ "4G",
+ "-net",
+ "nic,model=virtio",
+ "-net",
+ fmt.Sprintf(
+ "user,hostfwd=tcp:127.0.0.1:%s-:22",
+ port,
+ ),
+ "-drive",
+ fmt.Sprintf(
+ "file=%s,media=disk,snapshot=on,if=virtio",
+ image,
+ ),
+ "-smp",
+ "cpus=4",
+ "-nographic",
+ )
+}
+
func craft(workbench string) {
script := fmt.Sprintf(`#!/bin/sh
--
cgit v1.2.3-70-g09d2