def ctlStatus(self):
step = "Checking machinectl status for container {0} (ip {1})".\
format(self.cName, self.ip)
msg, ec = exec_command("sudo machinectl status {0} | grep "\
"\"Started Container {1}\"".\
format(self.cName, self.cName))
return msg, ec, step
def checkLowerImageRootMount(self):
step = "Checking if loop {0} (image root) is mounted to lower {1}".\
format(self.device, self.lower)
cmd = "mount | grep -qE \"{0}.*{1}\"".\
format(self.device, self.lower)
msg, ec = exec_command(cmd)
return msg, ec, step
def mountImagePartition(self):
fdiskOutput = self.getPartition()
self.p = parse_fdisk(fdiskOutput)
step = "Mounting image root partition to loop " + self.device
cmd = "sudo losetup -o {0} {1} {2}".format(self.p.startP, self.device,
self.iPath)
msg, ec = exec_command(cmd)
return msg, ec, step
def mountOverlayFS(self):
step = "Trying to mount overlayFS, merged path is " + self.merged
self._createDirs()
cmd = "sudo mount -t overlay overlay " \
"-o lowerdir={0},upperdir={1},workdir={2} " \
"{3}".format(self.lower, self.upper, self.ofsWork, self.merged)
msg, ec = exec_command(cmd)
return msg, ec, step
def checkBridgeAddress(self):
step = "Checking if bridge has IP {0}/{1} assigned".\
format(self.brIP, self.netPrefix)
msg, ec = exec_command("ip -4 -o addr show dev " + self.brName)
if "{0}/{1}".format(self.brIP, self.netPrefix) in msg:
print(OK(step))
else:
printErr(msg)
print(FAIL(step))
def checkSSH(self):
step = "Checking ssh connection to " + self.ip
cmd = ("ssh -o BatchMode=yes -o StrictHostKeyChecking=no " \
"-l {0} -i {1} {2} uptime".\
format(self.user,
self.cntCommon.sshPrivateKeyPath,
self.ip))
msg, ec = exec_command(cmd)
return msg, ec, step
def getPartition(self):
msg, ec = exec_command("fdisk -lu " + self.iPath)
"""
WTF?
$ fdisk -lu badabooom
fdisk: cannot open badabooom: No such file or directory
$ echo $?
0
"""
if "No such file or directory" in msg:
ec = 1
msg += "Have you launched 'aplspawn.py -o getimage'?"
return msg, ec, False
def getPID(self):
step = False
msg, ec = exec_command("sudo machinectl status {0} | grep "\
"\"Leader:\" ".\
format(self.cName, self.cName))
msgList = msg.split()
try:
index = msgList.index("Leader:")
res = msgList[index + 1]
except ValueError:
res, ec = False, False
step = "Unable to get pid of container. Is container {0} running?".\
format(self.cName)
return res, ec, step
def checkLoopDevice(self):
step = "Checking if image is mounted correctly to loop device {0} " \
.format(self.device)
msg, ec = exec_command("losetup -Jl " + self.device)
#try:
loop = draftClass(loads(msg)["loopdevices"][0])
imageFullPath = getattr(loop, "back-file")
#except:
# pass
if imageFullPath == self.iPath:
msg, ec = True, True
else:
msg, ec = False, False
return msg, ec, step
def rmWorkingDirs(self):
step = "Removing content of working directories"
wd = self.c.workingDirectory
for key in self.c.getKeys():
path = getattr(self.c, key)
if key == "workingDirectory":
continue
if wd in path:
if os.path.isdir(path):
msg, ec = exec_command("sudo rm -rf {0}/*".format(path))
print(OK(path + " was cleaned up"))
else:
print(INFO("{} is not under parent working directory," \
" refusing to remove it's cintent").format(path))
return True, "", step
def checkOverlayFS(self):
step = "Checking overlayFS mount"
msg, ec = exec_command("mount | grep " + self.cName)
failed = False
for key in self.pConfig.getKeys():
if key in ['localStore', 'workingDirectory']: continue
path = getattr(self.pConfig, key)
if path not in msg:
print(INFO("Not in OFS mount: " + path))
failed = True
break
if failed:
print(FAIL(step))
else:
print(OK(step))
def spawn(self):
self.varString = self._prepareVars()
cmd = "sudo systemd-nspawn -D {0} -n --network-bridge={1} " \
"-M {2} {3}".format(self.merged, self.bridge,
self.cName, self.varString)
if self.cntCommon.bindHostResolve:
cmd += "--bind-ro=/etc/resolv.conf "
# mount startup script
bindHostFull = "{0}/{1}".\
format(getScriptPath(), self.cntCommon.bindHost)
cmd += "--bind-ro={0}:{1} ".format(bindHostFull,
self.cntCommon.bindContainer)
# don't create own scope unit
#cmd += "--keep-unit "
cmd += " " + self.cntCommon.startupScript
msg, ec = exec_command(cmd, bg=True)
return msg, ec, msg
def execute(self, cmd):
msg, ec = exec_command(cmd)
return msg, ec, False
def iptablesBackup(self):
step = "Executing backup of current iptables configuration"
msg, ec = exec_command("sudo iptables-save >> iptables.backup")
return msg, ec, step
def checkBridgeExists(self):
step = "Checking if bridge {} exists".format(self.brName)
msg, ec = exec_command("ip link show " + self.brName)
return msg, ec, step
def kill(self):
step = "Killing container {0} (ip {1})".format(self.cName, self.ip)
msg, ec = exec_command("sudo machinectl kill " + self.cName)
return msg, ec, step
def releaseDevice(self):
step = "Releasing loop device " + self.device
cmd = "sudo losetup -d " + self.device
msg, ec = exec_command(cmd)
return msg, ec, step
def umountImage(self):
step = "Umounting image root partition from loop " + self.device
cmd = "sudo umount " + self.iPath
msg, ec = exec_command(cmd)
return msg, ec, step
def terminate(self):
step = "Terminating container {0} (ip {1})".format(self.cName, self.ip)
msg, ec = exec_command("sudo machinectl terminate " + self.cName)
return msg, ec, step
def start(self):
step = "Starting container {0} (ip {1})".format(self.cName, self.ip)
msg, ec = exec_command("sudo machinectl start " + self.cName)
return msg, ec, step
def checkPing(self):
step = "Checking ping to " + self.ip
msg, ec = exec_command("ping -c1 -W1 " + self.ip)
return msg, ec, step
def checkForwarding(self):
step = "Checking if traffic forwarding is enabled " \
"/proc/sys/net/ipv4/ip_forward"
cmd = "grep -q 1 /proc/sys/net/ipv4/ip_forward"
msg, ec = exec_command(cmd)
return msg, ec, step
def umount(self):
step = "Umount overlayFS " + self.merged
msg, ec = exec_command("sudo umount " + self.merged)
return msg, ec, step
def umountLower(self):
step = "Umounting lower overlayFS layer from loop " + self.device
cmd = "sudo umount " + self.lower
msg, ec = exec_command(cmd)
return msg, ec, step
def mountToLower(self):
step = "Mounting {0} as lower overlayFS layer".format(self.device)
createDir(self.lower)
cmd = "sudo mount -t squashfs {0} {1}".format(self.device, self.lower)
msg, ec = exec_command(cmd)
return msg, ec, step
def checkBridgeIsUp(self):
step = "Checking if bridge {} is up".format(self.brName)
cmd = "grep -q up /sys/class/net/{0}/operstate".\
format(self.brName)
msg, ec = exec_command(cmd)
return msg, ec, step
def checkLeader(self):
step = "Checking leader process " + self.cntCommon.startupScript
msg, ec = exec_command("sudo machinectl status {0} | grep {1}".\
format(self.cName,
self.cntCommon.startupScript))
return msg, ec, step