AB#2260 Refactor disk-mapper recovery (#82)

* Refactor disk-mapper recovery

* Adapt constellation recover command to use new disk-mapper recovery API

* Fix Cilium connectivity on rebooting nodes (#89)

* Lower CoreDNS reschedule timeout to 10 seconds (#93)

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

disk-mapper/internal/setup/interface.go

@@ -0,0 +1,65 @@
+/*
+Copyright (c) Edgeless Systems GmbH
+
+SPDX-License-Identifier: AGPL-3.0-only
+*/
+
+package setup
+
+import (
+	"io/fs"
+	"os"
+	"syscall"
+
+	"github.com/edgelesssys/constellation/internal/cloud/metadata"
+)
+
+// Mounter is an interface for mount and unmount operations.
+type Mounter interface {
+	Mount(source string, target string, fstype string, flags uintptr, data string) error
+	Unmount(target string, flags int) error
+	MkdirAll(path string, perm fs.FileMode) error
+}
+
+// DeviceMapper is an interface for device mapping operations.
+type DeviceMapper interface {
+	DiskUUID() string
+	FormatDisk(passphrase string) error
+	MapDisk(target string, passphrase string) error
+	UnmapDisk(target string) error
+}
+
+// ConfigurationGenerator is an interface for generating systemd-cryptsetup@.service unit files.
+type ConfigurationGenerator interface {
+	Generate(volumeName, encryptedDevice, keyFile, options string) error
+}
+
+// MetadataAPI is an interface for accessing cloud metadata.
+type MetadataAPI interface {
+	metadata.InstanceSelfer
+	metadata.InstanceLister
+}
+
+// RecoveryDoer is an interface to perform key recovery operations.
+// Calls to Do may be blocking, and if successful return a passphrase and measurementSecret.
+type RecoveryDoer interface {
+	Do(uuid, endpoint string) (passphrase, measurementSecret []byte, err error)
+}
+
+// DiskMounter uses the syscall package to mount disks.
+type DiskMounter struct{}
+
+// Mount performs a mount syscall.
+func (m DiskMounter) Mount(source string, target string, fstype string, flags uintptr, data string) error {
+	return syscall.Mount(source, target, fstype, flags, data)
+}
+
+// Unmount performs an unmount syscall.
+func (m DiskMounter) Unmount(target string, flags int) error {
+	return syscall.Unmount(target, flags)
+}
+
+// MkdirAll uses os.MkdirAll to create the directory.
+func (m DiskMounter) MkdirAll(path string, perm fs.FileMode) error {
+	return os.MkdirAll(path, perm)
+}