/usr/lib/python2.7/dist-packages/crmsh/ui_node.py is in crmsh 2.3.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | # Copyright (C) 2008-2011 Dejan Muhamedagic <dmuhamedagic@suse.de>
# Copyright (C) 2013 Kristoffer Gronlund <kgronlund@suse.com>
# See COPYING for license information.
from . import config
from . import command
from . import completers as compl
from . import ui_utils
from . import utils
from . import xmlutil
from .msg import common_err, syntax_err, no_prog_err, common_info, common_warn
from .cliformat import cli_nvpairs, nvpairs2list
from . import term
def _oneline(s):
'join s into a single line of space-separated tokens'
return ' '.join(l.strip() for l in s.splitlines())
def unpack_node_xmldata(node, is_offline):
"""
takes an XML element defining a node, and
returns the data to pass to print_node
is_offline: true|false
"""
typ = uname = ident = ""
inst_attr = []
other = {}
for attr in node.keys():
v = node.get(attr)
if attr == "type":
typ = v
elif attr == "uname":
uname = v
elif attr == "id":
ident = v
else:
other[attr] = v
inst_attr = [cli_nvpairs(nvpairs2list(elem))
for elem in node.xpath('./instance_attributes')]
return uname, ident, typ, other, inst_attr, is_offline
def print_node(uname, ident, node_type, other, inst_attr, offline):
"""
Try to pretty print a node from the cib. Sth like:
uname(id): node_type
attr1=v1
attr2=v2
"""
s_offline = offline and "(offline)" or ""
if not node_type:
node_type = "normal"
if uname == ident:
print term.render("%s: %s%s" % (uname, node_type, s_offline))
else:
print term.render("%s(%s): %s%s" % (uname, ident, node_type, s_offline))
for a in other:
print term.render("\t%s: %s" % (a, other[a]))
for s in inst_attr:
print term.render("\t%s" % (s))
class NodeMgmt(command.UI):
'''
Nodes management class
'''
name = "node"
node_standby = "crm_attribute -t nodes -N '%s' -n standby -v '%s' %s"
node_maint = "crm_attribute -t nodes -N '%s' -n maintenance -v '%s'"
node_delete = """cibadmin -D -o nodes -X '<node uname="%s"/>'"""
node_delete_status = """cibadmin -D -o status -X '<node_state uname="%s"/>'"""
node_cleanup_resources = "crm_resource --cleanup --node '%s'"
node_clear_state = _oneline("""cibadmin %s
-o status --xml-text
'<node_state id="%s"
uname="%s"
ha="active"
in_ccm="false"
crmd="offline"
join="member"
expected="down"
crm-debug-origin="manual_clear"
shutdown="0"
/>'""")
node_clear_state_118 = "stonith_admin --confirm %s"
hb_delnode = config.path.hb_delnode + " '%s'"
crm_node = "crm_node"
node_fence = "crm_attribute -t status -N '%s' -n terminate -v true"
dc = "crmadmin -D"
node_attr = {
'set': "crm_attribute -t nodes -N '%s' -n '%s' -v '%s'",
'delete': "crm_attribute -D -t nodes -N '%s' -n '%s'",
'show': "crm_attribute -G -t nodes -N '%s' -n '%s'",
}
node_status = {
'set': "crm_attribute -t status -N '%s' -n '%s' -v '%s'",
'delete': "crm_attribute -D -t status -N '%s' -n '%s'",
'show': "crm_attribute -G -t status -N '%s' -n '%s'",
}
node_utilization = {
'set': "crm_attribute -z -t nodes -N '%s' -n '%s' -v '%s'",
'delete': "crm_attribute -z -D -t nodes -N '%s' -n '%s'",
'show': "crm_attribute -z -G -t nodes -N '%s' -n '%s'",
}
def requires(self):
for p in ('cibadmin', 'crm_attribute'):
if not utils.is_program(p):
no_prog_err(p)
return False
return True
@command.completers(compl.nodes)
def do_status(self, context, node=None):
'usage: status [<node>]'
a = node and ('--xpath "//nodes/node[@uname=\'%s\']"' % node) or \
'-o nodes'
return utils.ext_cmd("%s %s" % (xmlutil.cib_dump, a)) == 0
@command.alias('list')
@command.completers(compl.nodes)
def do_show(self, context, node=None):
'usage: show [<node>]'
cib = xmlutil.cibdump2elem()
if cib is None:
return False
cfg_nodes = cib.xpath('/cib/configuration/nodes/node')
node_states = cib.xpath('/cib/status/node_state')
def find(it, lst):
for n in lst:
if n.get("uname") == it:
return n
return None
def do_print(uname):
xml = find(uname, cfg_nodes)
state = find(uname, node_states)
if xml is not None or state is not None:
is_offline = state is not None and state.get("crmd") == "offline"
print_node(*unpack_node_xmldata(xml if xml is not None else state, is_offline))
if node is not None:
do_print(node)
else:
all_nodes = set([n.get("uname") for n in cfg_nodes + node_states])
for uname in sorted(all_nodes):
do_print(uname)
return True
@command.wait
@command.completers(compl.nodes)
def do_standby(self, context, *args):
'usage: standby [<node>] [<lifetime>]'
argl = list(args)
node = None
lifetime = utils.fetch_lifetime_opt(argl, iso8601=False)
if not argl:
node = utils.this_node()
elif len(argl) == 1:
node = args[0]
if not xmlutil.is_our_node(node):
common_err("%s: node name not recognized" % node)
return False
else:
syntax_err(args, context=context.get_command_name())
return False
opts = ''
if lifetime:
opts = "--lifetime='%s'" % lifetime
else:
opts = "--lifetime='forever'"
return utils.ext_cmd(self.node_standby % (node, "on", opts)) == 0
@command.wait
@command.completers(compl.nodes)
def do_online(self, context, node=None):
'usage: online [<node>]'
if not node:
node = utils.this_node()
if not utils.is_name_sane(node):
return False
return utils.ext_cmd(self.node_standby % (node, "off", "--lifetime='forever'")) == 0
@command.wait
@command.completers(compl.nodes)
def do_maintenance(self, context, node=None):
'usage: maintenance [<node>]'
if not node:
node = utils.this_node()
if not utils.is_name_sane(node):
return False
return utils.ext_cmd(self.node_maint % (node, "on")) == 0
@command.wait
@command.completers(compl.nodes)
def do_ready(self, context, node=None):
'usage: ready [<node>]'
if not node:
node = utils.this_node()
if not utils.is_name_sane(node):
return False
return utils.ext_cmd(self.node_maint % (node, "off")) == 0
@command.wait
@command.completers(compl.nodes)
def do_fence(self, context, node):
'usage: fence <node>'
if not utils.is_name_sane(node):
return False
if not config.core.force and \
not utils.ask("Fencing %s will shut down the node and migrate any resources that are running on it! Do you want to fence %s?" % (node, node)):
return False
if xmlutil.is_remote_node(node):
return utils.ext_cmd("stonith_admin -F '%s'" % (node)) == 0
else:
return utils.ext_cmd(self.node_fence % (node)) == 0
@command.wait
@command.completers(compl.nodes)
def do_clearstate(self, context, node=None):
'usage: clearstate <node>'
if not node:
node = utils.this_node()
if not utils.is_name_sane(node):
return False
if not config.core.force and \
not utils.ask("Do you really want to drop state for node %s?" % node):
return False
if utils.is_pcmk_118():
cib_elem = xmlutil.cibdump2elem()
if cib_elem is None:
return False
node_state = cib_elem.xpath("//node_state[@uname=\"%s\"]/@crmd" % node)
if node_state == ['online']:
return utils.ext_cmd(self.node_cleanup_resources % node) == 0
else:
return utils.ext_cmd(self.node_clear_state_118 % node) == 0
else:
return utils.ext_cmd(self.node_clear_state % ("-M -c", node, node)) == 0 and \
utils.ext_cmd(self.node_clear_state % ("-R", node, node)) == 0
def _call_delnode(self, node):
"Remove node (how depends on cluster stack)"
rc = True
if utils.cluster_stack() == "heartbeat":
cmd = (self.hb_delnode % node)
else:
ec, s = utils.get_stdout("%s -p" % self.crm_node)
if not s:
common_err('%s -p could not list any nodes (rc=%d)' %
(self.crm_node, ec))
rc = False
else:
partition_l = s.split()
if node in partition_l:
common_err("according to %s, node %s is still active" %
(self.crm_node, node))
rc = False
cmd = "%s --force -R %s" % (self.crm_node, node)
if not rc:
if config.core.force:
common_info('proceeding with node %s removal' % node)
else:
return False
ec = utils.ext_cmd(cmd)
if ec != 0:
common_warn('"%s" failed, rc=%d' % (cmd, ec))
return False
return True
@command.completers(compl.nodes)
def do_delete(self, context, node):
'usage: delete <node>'
if not utils.is_name_sane(node):
return False
if not xmlutil.is_our_node(node):
common_err("node %s not found in the CIB" % node)
return False
if not self._call_delnode(node):
return False
if utils.ext_cmd(self.node_delete % node) != 0 or \
utils.ext_cmd(self.node_delete_status % node) != 0:
common_err("%s removed from membership, but not from CIB!" % node)
return False
common_info("node %s deleted" % node)
return True
@command.wait
@command.completers(compl.nodes, compl.choice(['set', 'delete', 'show']), compl.resources)
def do_attribute(self, context, node, cmd, rsc, value=None):
"""usage:
attribute <node> set <rsc> <value>
attribute <node> delete <rsc>
attribute <node> show <rsc>"""
return ui_utils.manage_attr(context.get_command_name(), self.node_attr,
node, cmd, rsc, value)
@command.wait
@command.completers(compl.nodes, compl.choice(['set', 'delete', 'show']), compl.resources)
def do_utilization(self, context, node, cmd, rsc, value=None):
"""usage:
utilization <node> set <rsc> <value>
utilization <node> delete <rsc>
utilization <node> show <rsc>"""
return ui_utils.manage_attr(context.get_command_name(), self.node_utilization,
node, cmd, rsc, value)
@command.wait
@command.name('status-attr')
@command.completers(compl.nodes, compl.choice(['set', 'delete', 'show']), compl.resources)
def do_status_attr(self, context, node, cmd, rsc, value=None):
"""usage:
status-attr <node> set <rsc> <value>
status-attr <node> delete <rsc>
status-attr <node> show <rsc>"""
return ui_utils.manage_attr(context.get_command_name(), self.node_status,
node, cmd, rsc, value)
def do_server(self, context, *nodes):
"""
usage:
server -- print server hostname / address for each node
server <node> ... -- print server hostname / address for node
"""
cib = xmlutil.cibdump2elem()
for node in cib.xpath('/cib/configuration/nodes/node'):
if nodes and node not in nodes:
continue
name = node.get('uname') or node.get('id')
if node.get('type') == 'remote':
srv = cib.xpath("//primitive[@id='%s']/instance_attributes/nvpair[@name='server']" % (name))
if srv:
print(srv[0].get('value'))
continue
print(name)
# vim:ts=4:sw=4:et:
|