From 0c47ee55e6820e55346303e75c5f9a35148c1654 Mon Sep 17 00:00:00 2001
From: Marin Salinas <marinssalinas@gmail.com>
Date: Fri, 15 Feb 2019 11:41:36 -0600
Subject: [PATCH] feature: add chroot builder structure

---
 builder/osc/chroot/builder.go | 53 +++++++++++++++++++++++++++++++++++
 command/plugin.go             |  2 ++
 2 files changed, 55 insertions(+)
 create mode 100644 builder/osc/chroot/builder.go

diff --git a/builder/osc/chroot/builder.go b/builder/osc/chroot/builder.go
new file mode 100644
index 000000000..532a7d6a5
--- /dev/null
+++ b/builder/osc/chroot/builder.go
@@ -0,0 +1,53 @@
+// The chroot package is able to create an Outscale OMI without requiring
+// the launch of a new instance for every build. It does this by attaching
+// and mounting the root volume of another OMI and chrooting into that
+// directory. It then creates an OMI from that attached drive.
+package chroot
+
+import (
+	"errors"
+	"runtime"
+
+	osccommon "github.com/hashicorp/packer/builder/osc/common"
+	"github.com/hashicorp/packer/common"
+	"github.com/hashicorp/packer/helper/multistep"
+	"github.com/hashicorp/packer/packer"
+	"github.com/hashicorp/packer/template/interpolate"
+)
+
+// The unique ID for this builder
+const BuilderId = "oapi.outscale.chroot"
+
+// Config is the configuration that is chained through the steps and
+// settable from the template.
+type Config struct {
+	common.PackerConfig       `mapstructure:",squash"`
+	osccommon.OMIBlockDevices `mapstructure:",squash"`
+	osccommon.OMIConfig       `mapstructure:",squash"`
+	osccommon.AccessConfig    `mapstructure:",squash"`
+
+	ctx interpolate.Context
+}
+
+type wrappedCommandTemplate struct {
+	Command string
+}
+
+type Builder struct {
+	config Config
+	runner multistep.Runner
+}
+
+func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
+	return nil, nil
+}
+
+func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
+	if runtime.GOOS != "linux" {
+		return nil, errors.New("The outscale-chroot builder only works on Linux environments.")
+	}
+	return nil, nil
+}
+
+func (b *Builder) Cancel() {
+}
diff --git a/command/plugin.go b/command/plugin.go
index e44708122..cfe9c417d 100644
--- a/command/plugin.go
+++ b/command/plugin.go
@@ -40,6 +40,7 @@ import (
 	oracleocibuilder "github.com/hashicorp/packer/builder/oracle/oci"
 	oscbsubuilder "github.com/hashicorp/packer/builder/osc/bsu"
 	oscbsusurrogatebuilder "github.com/hashicorp/packer/builder/osc/bsusurrogate"
+	oscchrootbuilder "github.com/hashicorp/packer/builder/osc/chroot"
 	parallelsisobuilder "github.com/hashicorp/packer/builder/parallels/iso"
 	parallelspvmbuilder "github.com/hashicorp/packer/builder/parallels/pvm"
 	profitbricksbuilder "github.com/hashicorp/packer/builder/profitbricks"
@@ -125,6 +126,7 @@ var Builders = map[string]packer.Builder{
 	"oracle-oci":          new(oracleocibuilder.Builder),
 	"osc-bsu":             new(oscbsubuilder.Builder),
 	"osc-bsusurrogate":    new(oscbsusurrogatebuilder.Builder),
+	"osc-chroot":          new(oscchrootbuilder.Builder),
 	"parallels-iso":       new(parallelsisobuilder.Builder),
 	"parallels-pvm":       new(parallelspvmbuilder.Builder),
 	"profitbricks":        new(profitbricksbuilder.Builder),