def json(self):
"""
Main sub-function for top
:return: None
"""
# Make sure the docker daemon is running
self.ping()
# Activate optional columns
self._activate_optionals()
proc_info = []
if len(self.args.containers) < 1:
try:
con_ids = [
x['Id'] for x in self.get_active_containers(refresh=True)
]
except requests.exceptions.ConnectionError:
raise NoDockerDaemon()
else:
con_ids = []
self.get_active_containers(refresh=True)
# verify the inputs are valid
for user_input in self.args.containers:
con_ids.append(self.get_input_id(user_input))
for cid in con_ids:
proc_info += self.get_pids_by_container(cid)
return Json.dumps(self.reformat_ps_info(proc_info))
def mount(self, identifier, options=None): # pylint: disable=arguments-differ
"""
Mounts a container or image referred to by identifier to
the host filesystem.
"""
if not options:
options = []
try:
# Check if a container/image is already mounted at the
# desired mount point.
cid, _ = self._get_cid_from_mountpoint(self.mountpoint)
if cid:
raise ValueError(
"container/image '{0}' already mounted at '{1}'".format(
cid, self.mountpoint))
except MountError:
pass
try:
driver = self._info()['Driver']
except requests.exceptions.ConnectionError:
raise NoDockerDaemon()
driver_mount_fn = getattr(self, "_mount_" + driver,
self._unsupported_backend)
driver_mount_fn(identifier, options)
# Return mount path so it can be later unmounted by path
return self.mountpoint
def _ping(self):
'''
Check if the docker daemon is running; if not, exit with
message and return code 1
'''
try:
self.d.ping()
except exceptions.ConnectionError:
raise NoDockerDaemon()
def _get_docker_images(self, get_all=False):
try:
images = self.d.images(all=get_all)
for i in images:
i["ImageType"] = "Docker"
i["ImageId"] = i["Id"]
except requests.exceptions.ConnectionError:
raise NoDockerDaemon()
return images
def get_docker_client():
"""
Universal method to use docker.client()
"""
kwargs = {"version": "auto"}
kwargs.update(docker.utils.kwargs_from_env(assert_hostname=False))
try:
client = docker.APIClient #pylint: disable=no-member
except AttributeError:
client = docker.Client #pylint: disable=no-member
try:
return client(**kwargs)
except docker.errors.DockerException:
raise NoDockerDaemon()
def Import(self):
try:
import_docker(self.graphdir, self.args.import_location,
self.args.assumeyes)
except requests.exceptions.ConnectionError:
raise NoDockerDaemon()
def atomic_top(self):
"""
Main sub-function for top
:return: None
"""
# Make sure the docker daemon is running
self.ping()
# Set debug bool
self.set_debug()
# Activate optional columns
self._activate_optionals()
# Do we have a tty?
# Can run ./atomic top <&- to replicate no tty
has_tty = isatty(0)
# Set up terminal, input handling
if has_tty:
fd = sys.stdin.fileno()
old_settings = termios.tcgetattr(fd)
sort_vals = [
x['character'].upper() for x in self.headers
if x['active'] and x['sort']
]
counter = 0
while True:
proc_info = []
if len(self.args.containers) < 1:
try:
con_ids = [
x['Id']
for x in self.get_active_containers(refresh=True)
]
except requests.exceptions.ConnectionError:
raise NoDockerDaemon()
else:
con_ids = []
self.get_active_containers(refresh=True)
# verify the inputs are valid
for user_input in self.args.containers:
con_ids.append(self.get_input_id(user_input))
for cid in con_ids:
proc_info += self.get_pids_by_container(cid)
# Reset screen
if not self.debug and has_tty:
util.write_out("\033c")
sorted_info = self.reformat_ps_info(proc_info)
self._set_dynamic_column_widths(sorted_info)
self.output_top(sorted_info)
if has_tty:
tty.setraw(sys.stdin.fileno())
i, _, _ = select.select([sys.stdin], [], [], self.args.d)
if i and has_tty:
ch = sys.stdin.read(1)
# Detect 'q' or Cntrl-c
if ch.upper() == 'q'.upper() or ord(ch) == 3:
# reset terminal
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
raise SystemExit
# Detect of the character pushed is one in self.headers
elif ch.upper() in sort_vals:
self._sort = next(
(header['shortname'] for header in self.headers
if header['character'] is not None
and header['character'].upper() == ch.upper()), False)
# reset terminal
if has_tty:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
counter += 1
if counter == self.args.n:
raise SystemExit