1 files changed, 146 insertions, 0 deletions
diff --git a/actions/debootstrap_action.go b/actions/debootstrap_action.go
new file mode 100644
index 0000000..a53d153
--- /dev/null
+++ b/actions/debootstrap_action.go
@@ -0,0 +1,146 @@
+/*
+Debootstrap Action
+
+Construct the target rootfs with debootstrap tool.
+
+Yaml syntax:
+ - action: debootstrap
+   mirror: URL
+   suite: "name"
+   components: <list of components>
+   variant: "name"
+   keyring-package:
+
+Mandatory properties:
+
+- suite -- release code name or symbolic name (e.g. "stable")
+
+Optional properties:
+
+- mirror -- URL with Debian-compatible repository
+
+- variant -- name of the bootstrap script variant to use
+
+- components -- list of components to use for packages selection.
+Example:
+ components: [ main, contrib ]
+
+- keyring-package -- keyring for packages validation. Currently ignored.
+
+- merged-usr -- use merged '/usr' filesystem, true by default.
+*/
+package actions
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"strings"
+
+	"github.com/go-debos/debos"
+)
+
+type DebootstrapAction struct {
+	debos.BaseAction `yaml:",inline"`
+	Suite            string
+	Mirror           string
+	Variant          string
+	KeyringPackage   string `yaml:"keyring-package"`
+	Components       []string
+	MergedUsr        bool `yaml:"merged-usr"`
+}
+
+func NewDebootstrapAction() *DebootstrapAction {
+	d := DebootstrapAction{}
+	// Use filesystem with merged '/usr' by default
+	d.MergedUsr = true
+	return &d
+
+}
+
+func (d *DebootstrapAction) RunSecondStage(context debos.DebosContext) error {
+	cmdline := []string{
+		"/debootstrap/debootstrap",
+		"--no-check-gpg",
+		"--second-stage"}
+
+	if d.Components != nil {
+		s := strings.Join(d.Components, ",")
+		cmdline = append(cmdline, fmt.Sprintf("--components=%s", s))
+	}
+
+	c := debos.NewChrootCommandForContext(context)
+	// Can't use nspawn for debootstrap as it wants to create device nodes
+	c.ChrootMethod = debos.CHROOT_METHOD_CHROOT
+
+	return c.Run("Debootstrap (stage 2)", cmdline...)
+}
+
+func (d *DebootstrapAction) Run(context *debos.DebosContext) error {
+	d.LogStart()
+	cmdline := []string{"debootstrap", "--no-check-gpg"}
+
+	if d.MergedUsr {
+		cmdline = append(cmdline, "--merged-usr")
+	}
+
+	if d.KeyringPackage != "" {
+		cmdline = append(cmdline, fmt.Sprintf("--keyring=%s", d.KeyringPackage))
+	}
+
+	if d.Components != nil {
+		s := strings.Join(d.Components, ",")
+		cmdline = append(cmdline, fmt.Sprintf("--components=%s", s))
+	}
+
+	/* FIXME drop the hardcoded amd64 assumption" */
+	foreign := context.Architecture != "amd64"
+
+	if foreign {
+		cmdline = append(cmdline, "--foreign")
+		cmdline = append(cmdline, fmt.Sprintf("--arch=%s", context.Architecture))
+
+	}
+
+	if d.Variant != "" {
+		cmdline = append(cmdline, fmt.Sprintf("--variant=%s", d.Variant))
+	}
+
+	cmdline = append(cmdline, d.Suite)
+	cmdline = append(cmdline, context.Rootdir)
+	cmdline = append(cmdline, d.Mirror)
+	cmdline = append(cmdline, "/usr/share/debootstrap/scripts/unstable")
+
+	err := debos.Command{}.Run("Debootstrap", cmdline...)
+
+	if err != nil {
+		return err
+	}
+
+	if foreign {
+		err = d.RunSecondStage(*context)
+		if err != nil {
+			return err
+		}
+	}
+
+	/* HACK */
+	srclist, err := os.OpenFile(path.Join(context.Rootdir, "etc/apt/sources.list"),
+		os.O_RDWR|os.O_CREATE, 0755)
+	if err != nil {
+		return err
+	}
+	_, err = io.WriteString(srclist, fmt.Sprintf("deb %s %s %s\n",
+		d.Mirror,
+		d.Suite,
+		strings.Join(d.Components, " ")))
+	if err != nil {
+		return err
+	}
+	srclist.Close()
+
+	c := debos.NewChrootCommandForContext(*context)
+
+	return c.Run("apt clean", "/usr/bin/apt-get", "clean")
+}