def test_init_params(test_microvm_with_api):
"""Correct propagation of boot args to the kernel's command line.
Test that init's parameters (the ones present after "--") do not get
altered or misplaced.
@type: negative
"""
vm = test_microvm_with_api
vm.jailer.daemonize = False
vm.spawn()
vm.memory_monitor = None
# We will override the init with /bin/cat so that we try to read the
# Ubuntu version from the /etc/issue file.
vm.basic_config(
vcpu_count=1,
boot_args="console=ttyS0 reboot=k panic=1 pci=off"
" init=/bin/cat -- /etc/issue",
)
vm.start()
serial = Serial(vm)
serial.open()
# If the string does not show up, the test will fail.
serial.rx(token="Ubuntu 18.04.5 LTS")
def test_microvm_initrd_with_serial(test_microvm_with_initrd):
"""
Test that a boot using initrd successfully loads the root filesystem.
@type: functional
"""
vm = test_microvm_with_initrd
vm.jailer.daemonize = False
vm.spawn()
vm.memory_monitor = None
vm.basic_config(add_root_device=False,
vcpu_count=1,
boot_args='console=ttyS0 reboot=k panic=1 pci=off',
use_initrd=True)
vm.start()
serial = Serial(vm)
serial.open()
serial.rx(token='login: '******'Password: '******'# ')
serial.tx("findmnt /")
serial.rx(token=f"/ {INITRD_FILESYSTEM} {INITRD_FILESYSTEM}")
def test_microvm_initrd_with_serial(
test_microvm_with_initrd):
"""Check microvm started with an inird has / mounted as rootfs."""
vm = test_microvm_with_initrd
vm.jailer.daemonize = False
vm.spawn()
vm.memory_monitor = None
vm.basic_config(
add_root_device=False,
vcpu_count=1,
boot_args='console=ttyS0 reboot=k panic=1 pci=off',
use_initrd=True
)
vm.start()
serial = Serial(vm)
serial.open()
serial.rx(token='login: '******'Password: '******'# ')
serial.tx("findmnt /")
serial.rx(
token=f"/ {INITRD_FILESYSTEM} {INITRD_FILESYSTEM}")
def test_serial_after_snapshot(bin_cloner_path):
"""
Serial I/O after restoring from a snapshot.
@type: functional
"""
vm_builder = MicrovmBuilder(bin_cloner_path)
vm_instance = vm_builder.build_vm_nano(
diff_snapshots=False,
daemonize=False,
)
microvm = vm_instance.vm
root_disk = vm_instance.disks[0]
ssh_key = vm_instance.ssh_key
microvm.start()
serial = Serial(microvm)
serial.open()
# Image used for tests on aarch64 has autologon
if platform.machine() == "x86_64":
serial.rx(token="login: "******"root")
serial.rx("Password: "******"root")
# Make sure that at the time we snapshot the vm, the user is logged in.
serial.rx("#")
snapshot_builder = SnapshotBuilder(microvm)
disks = [root_disk.local_path()]
# Create diff snapshot.
snapshot = snapshot_builder.create(disks, ssh_key, SnapshotType.FULL)
# Kill base microVM.
microvm.kill()
# Load microVM clone from snapshot.
test_microvm, _ = vm_builder.build_from_snapshot(snapshot,
resume=True,
diff_snapshots=False,
daemonize=False)
serial = Serial(test_microvm)
serial.open()
# We need to send a newline to signal the serial to flush
# the login content.
serial.tx("")
serial.rx("#")
serial.tx("pwd")
res = serial.rx("#")
assert "/root" in res