rDrama/util/common/__init__.py

145 lines
3.6 KiB
Python

import pprint
import subprocess
import sys
import time
def _execute(command,**kwargs):
#print("Running:")
#pprint.pprint(command)
check = kwargs.get('check', True)
on_stdout_line = kwargs.get('on_stdout_line', None)
on_stderr_line = kwargs.get('on_stderr_line', None)
with subprocess.Popen(
command,
universal_newlines=True,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
) as proc:
stdout = None
if proc.stdout:
stdout = ''
for line in proc.stdout:
if on_stdout_line:
on_stdout_line(line)
stdout += line
stderr = None
if proc.stderr:
stderr = ''
for line in proc.stderr:
if on_stderr_line:
on_stderr_line(line)
stderr += line
proc.wait()
if check and proc.returncode != 0:
raise subprocess.CalledProcessError(
command,
proc.returncode,
stdout or None,
stderr or None
)
else:
return subprocess.CompletedProcess(
command,
proc.returncode,
stdout or None,
stderr or None
)
def _docker(command, **kwargs):
return _execute([
"docker-compose",
"exec", '-T',
"files",
] + command,
**kwargs)
def _status_single(server):
command = ['docker', 'container', 'inspect', '-f', '{{.State.Status}}', server]
result = _execute(command, check=False).stdout.strip()
return result
# this should really be yanked out of the docker-compose somehow
_containers = ["themotte", "themotte_postgres", "themotte_redis"]
def _all_running():
for container in _containers:
if _status_single(container) != "running":
return False
return True
def _any_exited():
for container in _containers:
if _status_single(container) == "exited":
return True
return False
def _start():
print("Starting containers in operation mode . . .")
print(" If this takes a while, it's probably building the container.")
command = [
'docker-compose',
'-f', 'docker-compose.yml',
'-f', 'docker-compose-operation.yml',
'up',
'--build',
'-d',
]
result = _execute(command)
while not _all_running():
if _any_exited():
raise RuntimeError("Server exited prematurely")
time.sleep(1)
print(" Containers started!")
return result
def _stop():
# use "stop" instead of "down" to avoid killing all stored data
command = ['docker-compose','stop']
print("Stopping containers . . .")
result = _execute(command)
time.sleep(1)
return result
def _operation(name, commands):
# restart to make sure they're in the right mode
_stop()
_start()
# prepend our upgrade, since right now we're always using it
commands = [[
"python3",
"-m", "flask",
"db", "upgrade"
]] + commands
# run operations in docker container
print(f"Running {name} . . .")
for command in commands:
result = _docker(
command,
on_stdout_line=lambda line: print(line, end=''),
on_stderr=lambda line: print(line, end=''),
)
_stop()
return result
def run_help():
print("Available commands: (test|migrate|help)")
print("Usage: './manage.py <command> [options]'")
exit(0)
def error(message,code=1):
print(message,file=sys.stderr)
exit(code)