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Add an experimental Alpine image flow

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Stage a complete Alpine x86_64 image stack so \	--image alpineworks like the existing manual Void path instead of relying on Debian-oriented image builds.\n\nAdd make targets plus kernel/rootfs/register helpers that download pinned Alpine artifacts, extract a Firecracker-compatible vmlinux, build a matching mkinitfs initramfs, seed OpenRC services, and register/promote a managed image named alpine.\n\nFold in the bring-up fixes discovered during boot validation: use rootfstype=ext4 in shared boot args, install libgcc/libstdc++ for the opencode binary, and give opencode more time to become ready on cold boots.\n\nValidate with go test ./..., the Alpine helper builds, image promotion, and banger vm create --image alpine --name alp --nat plus guest service and port checks.
This commit is contained in:
Thales Maciel 2026-03-21 20:25:55 -03:00
parent 572bf32424
commit a166068fab
No known key found for this signature in database
GPG key ID: 33112E6833C34679
14 changed files with 1307 additions and 9 deletions
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6
internal/cli/banger.go
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@ -175,9 +175,9 @@ func newInternalVSockAgentPathCommand() *cobra.Command {
func newInternalPackagesCommand() *cobra.Command {
var docker bool
cmd := &cobra.Command{
Use: "packages <debian|void>",
Use: "packages <debian|void|alpine>",
Hidden: true,
Args: exactArgsUsage(1, "usage: banger internal packages <debian|void> [--docker]"),
Args: exactArgsUsage(1, "usage: banger internal packages <debian|void|alpine> [--docker]"),
RunE: func(cmd *cobra.Command, args []string) error {
var packages []string
switch strings.TrimSpace(args[0]) {
@ -188,6 +188,8 @@ func newInternalPackagesCommand() *cobra.Command {
}
case "void":
packages = imagepreset.VoidBasePackages()
case "alpine":
packages = imagepreset.AlpineBasePackages()
default:
return fmt.Errorf("unknown package preset %q", args[0])
}

18
internal/cli/cli_test.go
View file

@ -111,6 +111,24 @@ func TestInternalNATFlagsExist(t *testing.T) {
}
}
func TestInternalPackagesCommandSupportsAlpine(t *testing.T) {
cmd := NewBangerCommand()
var stdout bytes.Buffer
cmd.SetOut(&stdout)
cmd.SetArgs([]string{"internal", "packages", "alpine"})
if err := cmd.Execute(); err != nil {
t.Fatalf("Execute(): %v", err)
}
output := stdout.String()
for _, want := range []string{"alpine-base", "docker", "libgcc", "libstdc++", "mkinitfs", "openssh"} {
if !strings.Contains(output, want+"\n") {
t.Fatalf("output = %q, want package %q", output, want)
}
}
}
func TestVMCreateFlagsExist(t *testing.T) {
root := NewBangerCommand()
vm, _, err := root.Find([]string{"vm"})