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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
#!@PYTHON@ -tt
# This agent uses Proxmox VE API
# Thanks to Frank Brendel (author of original perl fence_pve)
# for help with writing and testing this agent.
import sys
import json
import pycurl
import io
import atexit
import logging
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import fail, fail_usage, EC_LOGIN_DENIED, atexit_handler, all_opt, check_input, process_input, show_docs, fence_action, run_delay
if sys.version_info[0] > 2: import urllib.parse as urllib
else: import urllib
def get_power_status(conn, options):
del conn
state = {"running" : "on", "stopped" : "off"}
if options["--pve-node"] is None:
nodes = send_cmd(options, "nodes")
if type(nodes) is not dict or "data" not in nodes or type(nodes["data"]) is not list:
return None
for node in nodes["data"]: # lookup the node holding the vm
if type(node) is not dict or "node" not in node:
return None
options["--pve-node"] = node["node"]
status = get_power_status(None, options)
if status is not None:
logging.info("vm found on node: " + options["--pve-node"])
break
else:
options["--pve-node"] = None
return status
else:
cmd = "nodes/" + options["--pve-node"] + "/" + options["--vmtype"] +"/" + options["--plug"] + "/status/current"
result = send_cmd(options, cmd)
if type(result) is dict and "data" in result:
if type(result["data"]) is dict and "status" in result["data"]:
if result["data"]["status"] in state:
return state[result["data"]["status"]]
return None
def set_power_status(conn, options):
del conn
action = {
'on' : "start",
'off': "stop"
}[options["--action"]]
cmd = "nodes/" + options["--pve-node"] + "/" + options["--vmtype"] +"/" + options["--plug"] + "/status/" + action
send_cmd(options, cmd, post={"skiplock":1})
def reboot_cycle(conn, options):
del conn
cmd = "nodes/" + options["--pve-node"] + "/" + options["--vmtype"] + "/" + options["--plug"] + "/status/reset"
result = send_cmd(options, cmd, post={"skiplock":1})
return type(result) is dict and "data" in result
def get_outlet_list(conn, options):
del conn
nodes = send_cmd(options, "nodes")
outlets = dict()
if type(nodes) is not dict or "data" not in nodes or type(nodes["data"]) is not list:
return None
for node in nodes["data"]:
if type(node) is not dict or "node" not in node:
return None
vms = send_cmd(options, "nodes/" + node["node"] + "/" + options["--vmtype"])
if type(vms) is not dict or "data" not in vms or type(vms["data"]) is not list:
return None
for vm in vms["data"]:
outlets[vm["vmid"]] = [vm["name"], vm["status"]]
return outlets
def get_ticket(options):
post = {'username': options["--username"], 'password': options["--password"]}
result = send_cmd(options, "access/ticket", post=post)
if type(result) is dict and "data" in result:
if type(result["data"]) is dict and "ticket" in result["data"] and "CSRFPreventionToken" in result["data"]:
return {
"ticket" : str("PVEAuthCookie=" + result["data"]["ticket"] + "; " + \
"version=0; path=/; domain=" + options["--ip"] + \
"; port=" + str(options["--ipport"]) + "; path_spec=0; secure=1; " + \
"expires=7200; discard=0"),
"CSRF_token" : str("CSRFPreventionToken: " + result["data"]["CSRFPreventionToken"])
}
return None
def send_cmd(options, cmd, post=None):
url = options["url"] + cmd
conn = pycurl.Curl()
output_buffer = io.BytesIO()
if logging.getLogger().getEffectiveLevel() < logging.WARNING:
conn.setopt(pycurl.VERBOSE, True)
conn.setopt(pycurl.HTTPGET, 1)
conn.setopt(pycurl.URL, url.encode("ascii"))
if "auth" in options and options["auth"] is not None:
conn.setopt(pycurl.COOKIE, options["auth"]["ticket"])
conn.setopt(pycurl.HTTPHEADER, [options["auth"]["CSRF_token"]])
if post is not None:
if "skiplock" in post:
conn.setopt(conn.CUSTOMREQUEST, 'POST')
else:
conn.setopt(pycurl.POSTFIELDS, urllib.urlencode(post))
conn.setopt(pycurl.WRITEFUNCTION, output_buffer.write)
conn.setopt(pycurl.TIMEOUT, int(options["--shell-timeout"]))
if "--ssl-insecure" in options:
conn.setopt(pycurl.SSL_VERIFYPEER, 0)
conn.setopt(pycurl.SSL_VERIFYHOST, 0)
else:
conn.setopt(pycurl.SSL_VERIFYPEER, 1)
conn.setopt(pycurl.SSL_VERIFYHOST, 2)
logging.debug("URL: " + url)
try:
conn.perform()
result = output_buffer.getvalue().decode()
logging.debug("RESULT [" + str(conn.getinfo(pycurl.RESPONSE_CODE)) + \
"]: " + result)
conn.close()
return json.loads(result)
except pycurl.error:
logging.error("Connection failed")
except:
logging.error("Cannot parse json")
return None
def main():
atexit.register(atexit_handler)
all_opt["pve_node_auto"] = {
"getopt" : "A",
"longopt" : "pve-node-auto",
"help" : "-A, --pve-node-auto "
"Automatically select proxmox node",
"required" : "0",
"shortdesc" : "Automatically select proxmox node. "
"(This option overrides --pve-node)",
"type": "boolean",
"order": 2
}
all_opt["pve_node"] = {
"getopt" : "N:",
"longopt" : "pve-node",
"help" : "-N, --pve-node=[node_name] "
"Proxmox node name on which machine is located",
"required" : "0",
"shortdesc" : "Proxmox node name on which machine is located. "
"(Must be specified if not using --pve-node-auto)",
"order": 2
}
all_opt["node_name"] = {
"getopt" : ":",
"longopt" : "nodename",
"help" : "--nodename "
"Replaced by --pve-node",
"required" : "0",
"shortdesc" : "Replaced by --pve-node",
"order": 3
}
all_opt["vmtype"] = {
"getopt" : ":",
"longopt" : "vmtype",
"default" : "qemu",
"help" : "--vmtype "
"Virtual machine type lxc or qemu (default: qemu)",
"required" : "1",
"shortdesc" : "Virtual machine type lxc or qemu. "
"(Default: qemu)",
"order": 2
}
device_opt = ["ipaddr", "login", "passwd", "ssl", "web", "port", "pve_node", "pve_node_auto", "node_name", "vmtype", "method"]
all_opt["login"]["required"] = "0"
all_opt["login"]["default"] = "root@pam"
all_opt["ipport"]["default"] = "8006"
all_opt["ssl"]["default"] = "1"
all_opt["port"]["shortdesc"] = "Id of the virtual machine."
all_opt["ipaddr"]["shortdesc"] = "IP Address or Hostname of a node " +\
"within the Proxmox cluster."
options = check_input(device_opt, process_input(device_opt))
docs = {}
docs["shortdesc"] = "Fencing agent for the Proxmox Virtual Environment"
docs["longdesc"] = "The fence_pve agent can be used to fence virtual \
machines acting as nodes in a virtualized cluster."
docs["vendorurl"] = "http://www.proxmox.com/"
show_docs(options, docs)
run_delay(options)
if "--pve-node-auto" in options:
# Force pve-node to None to allow autodiscovery
options["--pve-node"] = None
elif "--pve-node" in options and options["--pve-node"]:
# Leave pve-node alone
pass
elif "--nodename" in options and options["--nodename"]:
# map nodename into pve-node to support legacy implementations
options["--pve-node"] = options["--nodename"]
else:
fail_usage("At least one of pve-node-auto or pve-node must be supplied")
if options["--vmtype"] != "qemu":
# For vmtypes other than qemu, only the onoff method is valid
options["--method"] = "onoff"
options["url"] = "https://" + options["--ip"] + ":" + str(options["--ipport"]) + "/api2/json/"
options["auth"] = get_ticket(options)
if options["auth"] is None:
fail(EC_LOGIN_DENIED)
# Workaround for unsupported API call on some Proxmox hosts
outlets = get_outlet_list(None, options) # Unsupported API-Call will result in value: None
if outlets is None:
result = fence_action(None, options, set_power_status, get_power_status, None, reboot_cycle)
sys.exit(result)
result = fence_action(None, options, set_power_status, get_power_status, get_outlet_list, reboot_cycle)
sys.exit(result)
if __name__ == "__main__":
main()
|
