def del_node(addr):
'''
Remove node from corosync
'''
f = open(conf()).read()
p = Parser(f)
nth = p.remove_section_where('nodelist.node', 'ring0_addr', addr)
if nth == -1:
return
if p.count('nodelist.node') <= 2:
p.set('quorum.two_node', '1')
f = open(conf(), 'w')
f.write(p.to_string())
f.close()
# check for running config
try:
nodes = utils.list_cluster_nodes()
except Exception:
nodes = []
if nodes:
utils.ext_cmd(["corosync-cmapctl", "-D", "nodelist.node.%s.nodeid" % (nth)],
shell=False)
utils.ext_cmd(["corosync-cmapctl", "-D", "nodelist.node.%s.ring0_addr" % (nth)],
shell=False)
def _push_completer(args):
try:
n = utils.list_cluster_nodes()
n.remove(utils.this_node())
return n
except:
n = []
def del_node(addr):
'''
Remove node from corosync
'''
f = open(conf()).read()
p = Parser(f)
nth = p.remove_section_where('nodelist.node', 'ring0_addr', addr)
if nth == -1:
return
if p.count('nodelist.node') <= 2:
p.set('quorum.two_node', '1')
f = open(conf(), 'w')
f.write(p.to_string())
f.close()
# check for running config
try:
nodes = utils.list_cluster_nodes()
except Exception:
nodes = []
if nodes:
utils.ext_cmd(
["corosync-cmapctl", "-D",
"nodelist.node.%s.nodeid" % (nth)],
shell=False)
utils.ext_cmd(
["corosync-cmapctl", "-D",
"nodelist.node.%s.ring0_addr" % (nth)],
shell=False)
def _push_completer(args):
try:
n = utils.list_cluster_nodes()
n.remove(utils.this_node())
return n
except:
n = []
def do_push(self, context, *nodes):
'''
Push corosync configuration to other cluster nodes.
If no nodes are provided, configuration is pushed to
all other cluster nodes.
'''
if not nodes:
nodes = utils.list_cluster_nodes()
nodes.remove(utils.this_node())
return corosync.push_configuration(nodes)
def _filter_nodes(nodes, user, port):
'filter function for the nodes element'
if nodes:
nodes = nodes.replace(',', ' ').split()
else:
nodes = utils.list_cluster_nodes()
if not nodes:
raise ValueError("No hosts")
nodes = [(node, port or None, user or None) for node in nodes]
return nodes
def _filter_nodes(nodes, user, port):
'filter function for the nodes element'
if nodes:
nodes = nodes.replace(',', ' ').split()
else:
nodes = utils.list_cluster_nodes()
if not nodes:
raise ValueError("No hosts")
nodes = [(node, port or None, user or None) for node in nodes]
return nodes
def do_push(self, context, *nodes):
'''
Push corosync configuration to other cluster nodes.
If no nodes are provided, configuration is pushed to
all other cluster nodes.
'''
if not nodes:
nodes = utils.list_cluster_nodes()
nodes.remove(utils.this_node())
return corosync.push_configuration(nodes)
def do_diff(self, context, *nodes):
'''
Compare corosync configuration between nodes.
'''
checksum = False
if nodes and nodes[0] == '--checksum':
checksum = True
nodes = nodes[1:]
if not nodes:
nodes = utils.list_cluster_nodes()
return corosync.diff_configuration(nodes, checksum=checksum)
def do_diff(self, context, *nodes):
'''
Compare corosync configuration between nodes.
'''
checksum = False
if nodes and nodes[0] == '--checksum':
checksum = True
nodes = nodes[1:]
if not nodes:
nodes = utils.list_cluster_nodes()
return corosync.diff_configuration(nodes, checksum=checksum)
def add_node(name):
'''
Add node to corosync.conf
'''
coronodes = None
nodes = None
coronodes = utils.list_corosync_nodes()
try:
nodes = utils.list_cluster_nodes()
except Exception:
nodes = []
ipaddr = get_ip(name)
if name in coronodes or (ipaddr and ipaddr in coronodes):
err_buf.warning("%s already in corosync.conf" % (name))
return
if name in nodes:
err_buf.warning("%s already in configuration" % (name))
return
f = open(conf()).read()
p = Parser(f)
node_addr = name
node_id = next_nodeid(p)
p.add(
'nodelist',
make_section(
'nodelist.node',
make_value('nodelist.node.ring0_addr', node_addr) +
make_value('nodelist.node.nodeid', str(node_id))))
num_nodes = p.count('nodelist.node')
if num_nodes > 2:
p.remove('quorum.two_node')
f = open(conf(), 'w')
f.write(p.to_string())
f.close()
# update running config (if any)
if nodes:
utils.ext_cmd([
"corosync-cmapctl", "-s",
"nodelist.node.%s.nodeid" % (num_nodes - 1), "u32",
str(node_id)
],
shell=False)
utils.ext_cmd([
"corosync-cmapctl", "-s",
"nodelist.node.%s.ring0_addr" % (num_nodes - 1), "str", node_addr
],
shell=False)
def add_node(name):
'''
Add node to corosync.conf
'''
coronodes = None
nodes = None
coronodes = utils.list_corosync_nodes()
try:
nodes = utils.list_cluster_nodes()
except Exception:
nodes = []
ipaddr = get_ip(name)
if name in coronodes or (ipaddr and ipaddr in coronodes):
err_buf.warning("%s already in corosync.conf" % (name))
return
if name in nodes:
err_buf.warning("%s already in configuration" % (name))
return
f = open(conf()).read()
p = Parser(f)
node_addr = name
node_id = next_nodeid(p)
p.add('nodelist',
make_section('nodelist.node',
make_value('nodelist.node.ring0_addr', node_addr) +
make_value('nodelist.node.nodeid', str(node_id))))
num_nodes = p.count('nodelist.node')
if num_nodes > 2:
p.remove('quorum.two_node')
f = open(conf(), 'w')
f.write(p.to_string())
f.close()
# update running config (if any)
if nodes:
utils.ext_cmd(["corosync-cmapctl",
"-s", "nodelist.node.%s.nodeid" % (num_nodes - 1),
"u32", str(node_id)], shell=False)
utils.ext_cmd(["corosync-cmapctl",
"-s", "nodelist.node.%s.ring0_addr" % (num_nodes - 1),
"str", node_addr], shell=False)
def do_diff(self, context, filename, *nodes):
"usage: diff <filename> [--checksum] [nodes...]. Diff file across cluster."
this_node = utils.this_node()
checksum = False
if len(nodes) and nodes[0] == '--checksum':
nodes = nodes[1:]
checksum = True
if not nodes:
nodes = utils.list_cluster_nodes()
if checksum:
utils.remote_checksum(filename, nodes, this_node)
elif len(nodes) == 1:
utils.remote_diff_this(filename, nodes, this_node)
elif this_node in nodes:
nodes.remove(this_node)
utils.remote_diff_this(filename, nodes, this_node)
elif len(nodes):
utils.remote_diff(filename, nodes)
def do_add(self, context, *args):
'''
Add the given node(s) to the cluster.
Installs packages, sets up corosync and pacemaker, etc.
Must be executed from a node in the existing cluster.
'''
params = self._args_implicit(context, args, 'node')
paramdict = utils.nvpairs2dict(params)
node = paramdict.get('node')
if node:
node = node.replace(',', ' ').split()
else:
node = []
nodes = paramdict.get('nodes')
if not nodes:
nodes = utils.list_cluster_nodes()
nodes += node
params += ['nodes=%s' % (','.join(nodes))]
return scripts.run('add', params)
def do_add(self, context, *args):
'''
Add the given node(s) to the cluster.
Installs packages, sets up corosync and pacemaker, etc.
Must be executed from a node in the existing cluster.
'''
params = self._args_implicit(context, args, 'node')
paramdict = utils.nvpairs2dict(params)
node = paramdict.get('node')
if node:
node = node.replace(',', ' ').split()
else:
node = []
nodes = paramdict.get('nodes')
if not nodes:
nodes = utils.list_cluster_nodes()
nodes += node
params += ['nodes=%s' % (','.join(nodes))]
return scripts.run('add', params)
def do_run(self, context, cmd):
'''
Execute the given command on all nodes, report outcome
'''
try:
from psshlib import api as pssh
_has_pssh = True
except ImportError:
_has_pssh = False
if not _has_pssh:
context.fatal_error("PSSH not found")
hosts = utils.list_cluster_nodes()
opts = pssh.Options()
for host, result in pssh.call(hosts, cmd, opts).iteritems():
if isinstance(result, pssh.Error):
err_buf.error("[%s]: %s" % (host, result))
else:
if result[0] != 0:
err_buf.error("[%s]: rc=%s\n%s\n%s" % (host, result[0], result[1], result[2]))
else:
err_buf.ok("[%s]\n%s" % (host, result[1]))
def do_run(self, context, cmd):
'''
Execute the given command on all nodes, report outcome
'''
try:
from psshlib import api as pssh
_has_pssh = True
except ImportError:
_has_pssh = False
if not _has_pssh:
context.fatal_error("PSSH not found")
hosts = utils.list_cluster_nodes()
opts = pssh.Options()
for host, result in pssh.call(hosts, cmd, opts).iteritems():
if isinstance(result, pssh.Error):
err_buf.error("[%s]: %s" % (host, result))
else:
if result[0] != 0:
err_buf.error("[%s]: rc=%s\n%s\n%s" %
(host, result[0], result[1], result[2]))
else:
err_buf.ok("[%s]\n%s" % (host, result[1]))
def _node_in_cluster(self, node):
return node in utils.list_cluster_nodes()
def _node_in_cluster(self, node):
return node in utils.list_cluster_nodes()
def _all_nodes(args):
try:
return utils.list_cluster_nodes()
except:
return []
def _remove_completer(args):
try:
n = utils.list_cluster_nodes()
except:
n = []
return scripts.param_completion_list('remove') + n
def _remove_completer(args):
try:
n = utils.list_cluster_nodes()
except:
n = []
return scripts.param_completion_list('remove') + n
def _all_nodes(args):
try:
return utils.list_cluster_nodes()
except:
return []
