pykit/ectypes/server.py at master · bsc-s2/pykit · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
#!/usr/bin/env python2
# coding: utf-8

import re
import socket
from collections import defaultdict

import psutil

from pykit import fsutil
from pykit import net
from pykit import strutil

from .server_status import ServerStatus
from .drive_status import DriveStatus


def _make_mountpoints_info():
    mps = fsutil.get_all_mountpoint()
    prt_by_mp = fsutil.get_disk_partitions()

    mps_info = defaultdict(dict)
    for m in mps:
        p = prt_by_mp.get(m, None)
        if p is None:
            continue

        capacity = fsutil.get_path_usage(m)['total']

        mps_info[m]['fs'] = p['fstype']
        mps_info[m]['capacity'] = capacity

    return dict(mps_info)


def _get_allocated_drive(allocated_drive_pre, mountpoints):
    rst = {}
    max_mount_idx = 0
    for m in mountpoints:
        if not m.startswith(allocated_drive_pre):
            continue

        rst[m] = {'status': DriveStatus.NORMAL}
        idx = int(m.split('/')[-1])

        max_mount_idx = max_mount_idx if max_mount_idx > idx else idx

    return rst, max_mount_idx


def make_serverrec(server_id, idc, idc_type, roles, allocated_drive_pre, **argkv):
    serverrec = {}

    ips = net.get_host_ip4(exclude_prefix="docker")
    inn_ips = net.choose_inn(ips)
    pub_ips = net.choose_pub(ips)

    memory = psutil.virtual_memory().total
    cpu_info = {}
    # count of logical cpus
    cpu_info['count'] = psutil.cpu_count()
    # Mhz
    if hasattr(psutil, 'cpu_freq'):
        cpu_info['frequency'] = psutil.cpu_freq().max

    serverrec['server_id'] = server_id
    serverrec['pub_ips'] = pub_ips
    serverrec['inn_ips'] = inn_ips
    serverrec['hostname'] = socket.gethostname()
    serverrec['memory'] = memory
    serverrec['cpu'] = cpu_info
    serverrec['idc'] = idc
    serverrec['idc_type'] = idc_type
    serverrec['roles'] = roles

    mps = _make_mountpoints_info()
    serverrec['mountpoints'] = mps
    allocated_drive, max_mount_idx = _get_allocated_drive(allocated_drive_pre, mps)
    serverrec['next_mount_index'] = max_mount_idx + 1
    serverrec['allocated_drive'] = allocated_drive
    serverrec['status'] = ServerStatus.def_status()
    serverrec.update(argkv)

    return serverrec


def get_serverrec_str(serverrec):
    rst = []

    for k in ('server_id', 'idc', 'idc_type', 'roles'):
        rst.append('{k}: {v}'.format(k=k, v=serverrec[k]))

    rst.append('mountpoints_count: {cnt}'.format(
               cnt=len(serverrec['mountpoints'])))

    rst.append('allocated_drive_count: {cnt}'.format(
        cnt=len(serverrec['allocated_drive'])))

    return '; '.join(rst)


def validate_idc(idc):

    # deprecated, use IDCID(idc)

    if not isinstance(idc, basestring):
        return False

    if len(idc) > 0 and not idc.startswith('.'):
        return False

    names = idc.split('.')
    for n in names:
        if re.match("^[0-9a-zA-Z]*$", n) is None:
            return False

    return True


def idc_distance(idc_a, idc_b):
    if idc_a == idc_b:
        return 0

    pre_cnt = len(strutil.common_prefix(idc_a.split('.'), idc_b.split('.')))
    return 32 / (2 ** pre_cnt)