def post_start_project():
"""Copy metadata, create runfile, update index and open tty."""
if self.shared_meta_file:
path_to_copy = (self.config["guest_mountpoint"].format(
container_name, self.guest_meta_file))
parent_path = re.sub("[^/]+$", "", path_to_copy)
os.makedirs(parent_path)
shutil.copy(self.shared_meta_file, path_to_copy)
project_info = jsonify(uuid=container_uuid,
wwwroot="/inst-{0}".format(container_name),
project=project_name,
memory=quota_mem,
swap=quota_swap,
cpus=quota_cpu)
flag_filepath = os.path.join(self.run_dir, container_name)
safe_write_to_file(flag_filepath, project_info, self.logger.error)
if self.www_dir:
self.update_project_stats()
# Only open tty if the option is enabled
if self.base_tty > 0:
self.open_tty(container_name)
return True
def post_start_project():
"""Copy metadata, create runfile, update index and open tty."""
if self.shared_meta_file:
path_to_copy = (self.config["guest_mountpoint"]
.format(container_name, self.guest_meta_file))
parent_path = re.sub("[^/]+$", "", path_to_copy)
os.makedirs(parent_path)
shutil.copy(self.shared_meta_file, path_to_copy)
project_info = jsonify(
uuid=container_uuid,
wwwroot="/inst-{0}".format(container_name),
project=project_name,
memory=quota_mem,
swap=quota_swap,
cpus=quota_cpu
)
flag_filepath = os.path.join(self.run_dir, container_name)
safe_write_to_file(flag_filepath, project_info, self.logger.error)
if self.www_dir:
self.update_project_stats()
# Only open tty if the option is enabled
if self.base_tty > 0:
self.open_tty(container_name)
return True
def update_project_stats(self):
"""Thread-safe update of the index in the public WWW folder.
Index represents the state, resources and logs of the projects.
"""
def running_instances():
"""Get run dir and container name of every project."""
for container_name in self.get_containers_in_run_dir():
run_fp = self.path_of_runfile(container_name)
lines = safe_read_from_file(
run_fp, self.logger.error, lines=True
) or [""]
yield lines[0]
def get_uptime():
"""Read uptime and replace spaces by commas."""
seconds = safe_read_from_file("/proc/uptime", self.logger.error)[0]
return seconds.translate(string.maketrans(' ', ',')) or None
def get_load():
"""Get load from the uptime command."""
return check_output(["uptime"]).split("load average: ")[1]
def get_run_hours():
"""Get run hours of DumbQ."""
runhours_fp = self.config["dumbq_runhours"]
hours = safe_read_from_file(
runhours_fp, self.logger.warning, lines=True)
return hours[0] if hours else 0
update_error_message = feedback["update_index_error"]
now = str(time.time()).split(".")[0]
# Get updated index from current values
updated_index = jsonify(instances=list(running_instances()),
updated=now,
machine_uuid=self.host_uuid,
version=self.version,
uptime=get_uptime(),
load=get_load(),
runhours=get_run_hours())
# Overwrite updated contents to tmp file and update old
safe_write_to_file(self.temp_index_filepath,
updated_index, self.logger.warning)
with logged(self.logger, update_error_message, (EnvironmentError,)):
os.rename(self.temp_index_filepath, self.index_filepath)
def update_project_stats(self):
"""Thread-safe update of the index in the public WWW folder.
Index represents the state, resources and logs of the projects.
"""
def running_instances():
"""Get run dir and container name of every project."""
for container_name in self.get_containers_in_run_dir():
run_fp = self.path_of_runfile(container_name)
lines = safe_read_from_file(
run_fp, self.logger.error, lines=True) or [""]
yield lines[0]
def get_uptime():
"""Read uptime and replace spaces by commas."""
seconds = safe_read_from_file("/proc/uptime", self.logger.error)[0]
return seconds.translate(string.maketrans(' ', ',')) or None
def get_load():
"""Get load from the uptime command."""
return check_output(["uptime"]).split("load average: ")[1]
def get_run_hours():
"""Get run hours of DumbQ."""
runhours_fp = self.config["dumbq_runhours"]
hours = safe_read_from_file(runhours_fp,
self.logger.warning,
lines=True)
return hours[0] if hours else 0
update_error_message = feedback["update_index_error"]
now = str(time.time()).split(".")[0]
# Get updated index from current values
updated_index = jsonify(instances=list(running_instances()),
updated=now,
machine_uuid=self.host_uuid,
version=self.version,
uptime=get_uptime(),
load=get_load(),
runhours=get_run_hours())
# Overwrite updated contents to tmp file and update old
safe_write_to_file(self.temp_index_filepath, updated_index,
self.logger.warning)
with logged(self.logger, update_error_message, (EnvironmentError, )):
os.rename(self.temp_index_filepath, self.index_filepath)
def dump_info_to_file(tty_id, container_name):
"""Write PID of the monitor and the container attach to it."""
new_tty_fp = filepath_from_tty_id(tty_id)
tty_info = "{0} {1}".format(os.getpid(), container_name)
safe_write_to_file(new_tty_fp, tty_info, self.logger.error)
def genwrite_uuid():
# Generate a new UUID and save it
new_uuid = str(uuid4())
safe_write_to_file(self.uuid_file, new_uuid, self.logger.warning)
return new_uuid
def dump_info_to_file(tty_id, container_name):
"""Write PID of the monitor and the container attach to it."""
new_tty_fp = filepath_from_tty_id(tty_id)
tty_info = "{0} {1}".format(os.getpid(), container_name)
safe_write_to_file(new_tty_fp, tty_info, self.logger.error)
def genwrite_uuid():
# Generate a new UUID and save it
new_uuid = str(uuid4())
safe_write_to_file(self.uuid_file, new_uuid, self.logger.warning)
return new_uuid