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eoptasks: execute actual ssh command in a fork, to get return code

This commit is contained in:
Frédéric Péters 2018-12-31 16:31:29 +01:00
parent a8ea335101
commit 311e4e6983
1 changed files with 72 additions and 42 deletions
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114
eoptasks/eoptasks.py
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@ -38,6 +38,7 @@ import json
import os
import random
import re
import subprocess
import socket
import sys
import time
@ -64,12 +65,6 @@ class Server:
def __repr__(self):
return '<Server %s %r>' % (self.name, self.keywords)
def shell(self):
return 'ssh %s' % self.name
def cmd(self, cmd, *args):
return 'ssh -t %s "%s %s"' % (self.name, cmd, ' '.join(args))
def get_servers():
servers = []
@ -97,6 +92,8 @@ def parse_args():
parser.add_argument('-l', '--list-servers', action='store_true')
parser.add_argument('--session-name', dest='session_name', type=str)
parser.add_argument('--status-window', action='store_true')
parser.add_argument('--command-window', action='store_true')
parser.add_argument('--command-server-name', dest='command_server_name', type=str)
parser.add_argument('-k', dest='keywords', type=str)
parser.add_argument('cmd', type=str, nargs='?', default=None)
parser.add_argument('args', nargs=argparse.REMAINDER)
@ -118,7 +115,8 @@ def filter_servers(servers, args):
selected_servers = servers
return selected_servers
def status_window(session_name):
def status_window(args):
session_name = args.session_name
curses.setupterm()
window = curses.initscr()
window.addstr(0, 0, 'eoptasks', curses.A_STANDOUT)
@ -130,6 +128,7 @@ def status_window(session_name):
sock.bind(server_address)
sock.listen(1)
e = None
servers_results = {}
while True:
connection, client_address = sock.accept()
try:
@ -139,10 +138,15 @@ def status_window(session_name):
if not data:
break
json_msg += data
servers_info = json.loads(json_msg.decode('utf-8'))
msg = json.loads(json_msg.decode('utf-8'))
finally:
connection.close()
if msg.get('@type') == 'servers-info':
servers_info = msg['info']
elif msg.get('@type') == 'server-result':
servers_results.update(msg['info'])
try:
height, width = window.getmaxyx()
max_length = max([len(x) for x in servers_info.keys()]) + 4
@ -156,6 +160,8 @@ def status_window(session_name):
'running': '⏳',
'done': '🆗',
}.get(servers_info[server_name]['status'], '💤')
if servers_results.get(server_name) == 'error':
status_icon = '❗'
window.addstr(y, x, status_icon)
if y > height-4:
break
@ -174,10 +180,57 @@ def status_window(session_name):
time.sleep(5)
def send_status_message(tmux_session_name, msg):
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
server_address = '/tmp/.eoptasks.%s' % tmux_session_name
try:
sock.connect(server_address)
except socket.error as e:
return
sock.sendall(json.dumps(msg).encode('utf-8'))
sock.close()
def command_window(args):
tmux_session_name = args.session_name
cmd = {
'apt.update': 'sudo apt update',
'apt.upgrade': 'sudo apt update && sudo apt full-upgrade -y',
# collectstatic is useful after an upgrade of gadjo.
'collectstatic': '''sudo -u authentic-multitenant authentic2-multitenant-manage collectstatic --noinput;
sudo -u bijoe bijoe-manage collectstatic --noinput;
sudo -u chrono chrono-manage collectstatic --noinput;
sudo -u combo combo-manage collectstatic --noinput;
sudo -u corbo corbo-manage collectstatic --noinput;
sudo -u fargo fargo-manage collectstatic --noinput;
sudo -u hobo hobo-manage collectstatic --noinput;
sudo -u passerelle passerelle-manage collectstatic --noinput;
sudo -u wcs wcs-manage collectstatic;
/bin/true'''.replace('\n', ''),
# combo.reload is useful to get a new {% start_timestamp %} after an
# upgrade of publik-base-theme.
'combo.reload': '''sudo service combo reload; /bin/true''',
# hobo-agent.restart is the fastest way to get the number of threads
# used by celery under control :/
'hobo-agent.restart': '''test -e /etc/hobo-agent/settings.py && sudo supervisorctl restart hobo-agent''',
}.get(args.cmd, args.cmd)
if args.args:
cmd += ' ' + ' '.join(['"%s"' % x for x in args.args])
rc = subprocess.call(['ssh', '-t', args.command_server_name] + [cmd])
if rc != 0:
send_status_message(tmux_session_name,
{'@type': 'server-result',
'info': {args.command_server_name: 'error'}})
input('type enter to quit --> ')
args = parse_args()
if args.session_name and args.status_window:
status_window(args.session_name)
if args.status_window:
status_window(args)
sys.exit(0)
if args.command_window:
command_window(args)
sys.exit(0)
servers = get_servers()
@ -203,6 +256,7 @@ def init_tmux_session():
os.unlink(server_address)
except OSError:
pass
os.environ['SHELL'] = '/bin/sh'
os.system('tmux new-session -s %s -n 🌑 -d %s --status-window --session-name %s' % (
tmux_session_name, sys.argv[0], tmux_session_name))
return tmux_session_name
@ -220,28 +274,6 @@ else:
tmux = libtmux.Server()
session = tmux.find_where({'session_name': tmux_session_name})
cmd = {
'apt.update': 'sudo apt update',
'apt.upgrade': 'sudo apt update && sudo apt full-upgrade -y',
# collectstatic is useful after an upgrade of gadjo.
'collectstatic': '''sudo -u authentic-multitenant authentic2-multitenant-manage collectstatic --noinput;
sudo -u bijoe bijoe-manage collectstatic --noinput;
sudo -u chrono chrono-manage collectstatic --noinput;
sudo -u combo combo-manage collectstatic --noinput;
sudo -u corbo corbo-manage collectstatic --noinput;
sudo -u fargo fargo-manage collectstatic --noinput;
sudo -u hobo hobo-manage collectstatic --noinput;
sudo -u passerelle passerelle-manage collectstatic --noinput;
sudo -u wcs wcs-manage collectstatic;
/bin/true'''.replace('\n', ''),
# combo.reload is useful to get a new {% start_timestamp %} after an
# upgrade of publik-base-theme.
'combo.reload': '''sudo service combo reload; /bin/true''',
# hobo-agent.restart is the fastest way to get the number of threads
# used by celery under control :/
'hobo-agent.restart': '''test -e /etc/hobo-agent/settings.py && sudo supervisorctl restart hobo-agent''',
}.get(args.cmd, args.cmd)
status_window = session.attached_window
all_servers = selected_servers[:]
@ -260,15 +292,7 @@ else:
server_info['status'] = 'running'
elif server_info['status'] == 'running':
server_info['status'] = 'done'
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
server_address = '/tmp/.eoptasks.%s' % tmux_session_name
try:
sock.connect(server_address)
except socket.error:
return
sock.sendall(json.dumps(servers_info).encode('utf-8'))
sock.close()
send_status_message(tmux_session_name, {'@type': 'servers-info', 'info': servers_info})
while selected_servers:
current_clusters = [cluster_name(x.name) for x in session.list_windows()]
@ -276,10 +300,16 @@ else:
if cluster_name(server.name) in current_clusters:
continue
selected_servers.remove(server)
window_cmd = '%s --session-name %s --command-window --command-server-name %s "%s" %s' % (
sys.argv[0],
tmux_session_name,
server.name,
args.cmd,
' '.join(['"%s"' % x for x in args.args]))
session.new_window(
attach=False,
window_name=server.name,
window_shell=server.cmd(cmd, *args.args))
window_shell=window_cmd)
break
else:
time.sleep(0.1)