feat(cloud-hypervisor): Add support for block-based rootfs in Linux

Add support for bloc-based rootfs of Linux guests over cloud-hypervisor.
The support was missing because we simply had to update the respective
function in the linux.go file.

PR: #786
Signed-off-by: Charalampos Mainas <cmainas@nubificus.co.uk>
Reviewed-by: Anastassios Nanos <ananos@nubificus.co.uk>
Approved-by: Anastassios Nanos <ananos@nubificus.co.uk>

Author: cmainas

pkg/unikontainers/unikernels/linux.go

@@ -179,6 +179,13 @@ func (l *Linux) MonitorBlockCli() []types.MonitorBlockArgs {
 				Path: aBlock.Source,
 			})
 		}
+	case "cloud-hypervisor":
+		for _, aBlock := range l.Blk {
+			blkArgs = append(blkArgs, types.MonitorBlockArgs{
+				ID:   aBlock.ID,
+				Path: aBlock.Source,
+			})
+		}
 	default:
 		return nil
 	}

tests/e2e/test_cases.go

@@ -456,6 +456,22 @@ func nerdctlTestCases() []containerTestArgs {
 			Skippable:      false,
 			TestFunc:       pingTest,
 		},
+		{
+			Image:          "harbor.nbfc.io/nubificus/urunc/nginx-cloud-hypervisor-linux-raw:latest",
+			Name:           "CloudHypervisor-linux-nginx-devmapper",
+			Devmapper:      true,
+			Seccomp:        true,
+			UID:            0,
+			GID:            0,
+			Groups:         []int64{},
+			Memory:         "512M",
+			Cli:            "",
+			Volumes:        []containerVolume{},
+			StaticNet:      false,
+			SideContainers: []string{},
+			Skippable:      false,
+			TestFunc:       pingTest,
+		},
 	}
 }