haproxy-wi/app/modules/service/haproxy.py

274 lines
11 KiB
Python

import os
import requests
from flask import request
import modules.db.sql as sql
import modules.server.server as server_mod
import modules.config.config as config_mod
import modules.roxywi.common as roxywi_common
import modules.roxy_wi_tools as roxy_wi_tools
time_zone = sql.get_setting('time_zone')
get_date = roxy_wi_tools.GetDate(time_zone)
get_config = roxy_wi_tools.GetConfigVar()
def stat_page_action(serv: str) -> None:
haproxy_user = sql.get_setting('stats_user')
haproxy_pass = sql.get_setting('stats_password')
stats_port = sql.get_setting('stats_port')
stats_page = sql.get_setting('stats_page')
postdata = {
'action': request.form.get('action'),
's': request.form.get('s'),
'b': request.form.get('b')
}
headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 5.1; rv:20.0) Gecko/20100101 Firefox/20.0',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Language': 'en-US,en;q=0.5',
'Accept-Encoding': 'gzip, deflate'
}
data = requests.post(f'http://{serv}:{stats_port}/{stats_page}', headers=headers, data=postdata, auth=(haproxy_user, haproxy_pass))
return data.content
def show_map(serv: str) -> str:
import networkx as nx
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
stats_port = sql.get_setting('stats_port')
hap_configs_dir = get_config.get_config_var('configs', 'haproxy_save_configs_dir')
date = get_date.return_date('config')
cfg = f'{hap_configs_dir}{serv}-{date}.cfg'
output = f'<center><h4 style="margin-bottom: 0;">Map from {serv}</h4>'
error = config_mod.get_config(serv, cfg)
if error:
return f'error: Cannot read import config file {error}'
try:
conf = open(cfg, "r")
except IOError as e:
return f'error: Cannot read import config file {e}'
G = nx.DiGraph()
node = ""
line_new2 = [1, ""]
sections = {'listens': dict(), 'backends': dict()}
for line in conf:
if line.startswith('listen') or line.startswith('frontend'):
if "stats" not in line:
node = line
if line.find("backend") == 0:
node = line
node = node.split('\n')[0]
sections['backends'][node] = {'servers': dict()}
if "bind" in line or (line.startswith('listen') and ":" in line) or (
line.startswith('frontend') and ":" in line):
try:
if "@" not in line:
bind = line.split(":")
else:
bind = line.split("@")
if str(stats_port) not in bind[1]:
bind[1] = bind[1].strip(' ')
bind = bind[1].split("crt")
node = node.strip(' \t\n\r')
node = node + ":" + bind[0]
node = node.split('\n')[0]
sections['listens'][node] = {'servers': dict()}
except Exception:
pass
if "server " in line or "use_backend" in line or "default_backend" in line and "stats" not in line and "#" not in line:
if "timeout" not in line and "default-server" not in line and "#" not in line and "stats" not in line:
if "check" in line:
line_new = line.split("check")
else:
line_new = line.split("if ")
if "server" in line:
line_new1 = line_new[0].split("server")
line_new[0] = line_new1[1]
line_new2 = line_new[0].split(":")
line_new[0] = line_new2[0]
line_new[0] = line_new[0].strip(' \t\n\r')
try:
backend_server_port = line_new2[1].strip(' \t\n\r')
backend_server_port = 'port: ' + backend_server_port
except Exception:
backend_server_port = ''
try:
sections['listens'][node]['servers'][line_new[0]] = {line_new[0]: backend_server_port}
except Exception:
pass
try:
sections['backends'][node]['servers'][line_new[0]] = {line_new[0]: backend_server_port}
except Exception:
pass
conf.close()
os.remove(cfg)
i, k, j = 0, 0, 0
backend_servers_len_dict = 1
backends_from_frontends = []
backends_servers = []
for key, val in sections.items():
if key == 'listens':
for k2, v2 in val.items():
i -= 750
G.add_node(k2, pos=(k, i), label_pos=(k, i + 250))
for k3, v3 in v2.items():
for k4, v4 in v3.items():
""" Add backend servers of listens or backend from frontends """
i -= 300
j += 1
server_name = k4
if 'default_backend' in k4 or 'use_backend' in k4:
backend_name = k4.split(' ')[1]
backend_name = 'backend ' + backend_name
k4 = backend_name
backends_from_frontends.append(k4)
if k4 not in backends_servers:
if j % 2 == 0:
G.add_node(k4, pos=(k + 250, i - 100), label_pos=(k + 250, i - 420))
else:
G.add_node(k4, pos=(k - 250, i - 370), label_pos=(k - 245, i - 650))
if v4[server_name] != '':
G.add_edge(k2, k4, port=v4[server_name])
else:
G.add_edge(k2, k4, port='')
for k4, v4 in v3.items():
""" Add servers from backends """
i -= 300
j -= 1
if 'default_backend' in k4 or 'use_backend' in k4:
backend_name = k4.split(' ')[1]
backend_name = 'backend ' + backend_name
k4 = backend_name
backends_from_frontends.append(k4)
if j % 2 == 0:
if len(v3) % 2 == 0:
i += (700 * backend_servers_len_dict) + 700
for k5, v5 in sections['backends'][k4]['servers'].items():
i -= 700
s = k + 400
G.add_node(k5, pos=(s + 250, i - 335), label_pos=(s + 215, i - 580))
if v5[k5] != '':
G.add_edge(k4, k5, port=v5[k5])
else:
G.add_edge(k4, k5, port='')
backends_servers.append(k5)
else:
for k5, v5 in sections['backends'][k4]['servers'].items():
i -= 700
s = k - 400
G.add_node(k5, pos=(s - 250, i - 0), label_pos=(s - 245, i - 270))
if v5[k5] != '':
G.add_edge(k4, k5, port=v5[k5])
else:
G.add_edge(k4, k5, port='')
backends_servers.append(k5)
backend_servers_len_dict = len(sections['backends'][k4]['servers'])
backends_servers.append(k4)
elif key == 'backends':
for k2, v2 in val.items():
if k2 not in backends_from_frontends:
i -= 750
G.add_node(k2, pos=(k, i), label_pos=(k, i + 250))
for k3, v3 in v2.items():
for k4, v4 in v3.items():
if k4 not in backends_servers:
i -= 300
j += 1
if j % 2 == 0:
s = k + 400
G.add_node(k4, pos=(s + 250, i - 335), label_pos=(s + 215, i - 580))
else:
s = k - 400
G.add_node(k4, pos=(s - 250, i - 0), label_pos=(s - 245, i - 270))
if v4[k4] != '':
G.add_edge(k2, k4, port=v4[k4])
else:
G.add_edge(k2, k4, port='')
backends_servers.append(k4)
pos = nx.get_node_attributes(G, 'pos')
pos_label = nx.get_node_attributes(G, 'label_pos')
edge_labels = nx.get_edge_attributes(G, 'port')
try:
plt.figure(10, figsize=(10, 20))
nx.draw(G, pos, with_labels=False, font_weight='bold', width=3, alpha=0.1, linewidths=5)
nx.draw_networkx_nodes(G, pos, node_color="#5d9ceb", node_size=100, alpha=0.8, node_shape="h")
nx.draw_networkx_labels(G, pos=pos_label, alpha=1, font_color="#5CB85C", font_size=10)
nx.draw_networkx_edges(G, pos, width=0.3, alpha=0.7, edge_color="#5D9CEB", arrows=False)
nx.draw_networkx_edge_labels(G, pos, alpha=0.4, label_pos=0.5, font_color="#5d9ceb", edge_labels=edge_labels,
font_size=8)
plt.savefig("/var/www/haproxy-wi/map.png")
plt.show()
except Exception as e:
return f'error: Cannot create a map: {e}'
output += '<img src="/map.png" alt="map"></center>'
return output
def runtime_command(serv: str, enable: str, backend: str, save: str) -> str:
server_state_file = sql.get_setting('server_state_file')
haproxy_sock = sql.get_setting('haproxy_sock')
cmd = f'echo "{enable} {backend}" |sudo socat stdio {haproxy_sock}'
if save == "on":
save_command = f'echo "show servers state" | sudo socat {haproxy_sock} stdio > {server_state_file}'
command = [cmd + ';' + save_command]
else:
command = [cmd]
if enable != "show":
roxywi_common.logging(serv, f'Has been {enable}ed {backend}', login=1, keep_history=1, service='haproxy')
print(
f'<center><h3>You {enable} {backend} on HAProxy {serv}. <a href="/app/stats/haproxy/{serv}" '
f'title="View stat" target="_blank">Look it</a> or <a href="/app/runtimeapi" '
f'title="Runtime API">Edit something else</a></h3><br />')
action = f'runtimeapi {enable} {backend}'
roxywi_common.logging(serv, action)
return server_mod.ssh_command(serv, command, show_log="1")