def config_restore_remote(infile_name, infile_obj):
extracted = {
"version.txt": "",
"corosync.conf": "",
"cluster.conf": "",
}
try:
tarball = tarfile.open(infile_name, "r|*", infile_obj)
while True:
# next(tarball) does not work in python2.6
tar_member_info = tarball.next()
if tar_member_info is None:
break
if tar_member_info.name in extracted:
tar_member = tarball.extractfile(tar_member_info)
extracted[tar_member_info.name] = tar_member.read()
tar_member.close()
tarball.close()
except (tarfile.TarError, EnvironmentError) as e:
utils.err("unable to read the tarball: %s" % e)
config_backup_check_version(extracted["version.txt"])
node_list = utils.get_corosync_conf_facade(
conf_text=extracted["corosync.conf"].decode(
"utf-8")).get_nodes_names()
if not node_list:
utils.err("no nodes found in the tarball")
err_msgs = []
for node in node_list:
try:
retval, output = utils.checkStatus(node)
if retval != 0:
err_msgs.append(output)
continue
status = json.loads(output)
if (status["corosync"] or status["pacemaker"] or status["cman"] or
# not supported by older pcsd, do not fail if not present
status.get("pacemaker_remote", False)):
err_msgs.append(
"Cluster is currently running on node %s. You need to stop "
"the cluster in order to restore the configuration." %
node)
continue
except (ValueError, NameError, LookupError):
err_msgs.append("unable to determine status of the node %s" % node)
if err_msgs:
for msg in err_msgs:
utils.err(msg, False)
sys.exit(1)
# Temporarily disable config files syncing thread in pcsd so it will not
# rewrite restored files. 10 minutes should be enough time to restore.
# If node returns HTTP 404 it does not support config syncing at all.
for node in node_list:
retval, output = utils.pauseConfigSyncing(node, 10 * 60)
if not (retval == 0 or "(HTTP error: 404)" in output):
utils.err(output)
if infile_obj:
infile_obj.seek(0)
tarball_data = infile_obj.read()
else:
with open(infile_name, "rb") as tarball:
tarball_data = tarball.read()
error_list = []
for node in node_list:
retval, error = utils.restoreConfig(node, tarball_data)
if retval != 0:
error_list.append(error)
if error_list:
utils.err("unable to restore all nodes\n" + "\n".join(error_list))
def config_restore_remote(infile_name, infile_obj):
extracted = {
"version.txt": "",
"corosync.conf": "",
"cluster.conf": "",
}
try:
tarball = tarfile.open(infile_name, "r|*", infile_obj)
while True:
# next(tarball) does not work in python2.6
tar_member_info = tarball.next()
if tar_member_info is None:
break
if tar_member_info.name in extracted:
tar_member = tarball.extractfile(tar_member_info)
extracted[tar_member_info.name] = tar_member.read()
tar_member.close()
tarball.close()
except (tarfile.TarError, EnvironmentError) as e:
utils.err("unable to read the tarball: %s" % e)
config_backup_check_version(extracted["version.txt"])
node_list = utils.getNodesFromCorosyncConf(
extracted["cluster.conf" if utils.is_rhel6() else "corosync.conf"].decode("utf-8")
)
if not node_list:
utils.err("no nodes found in the tarball")
err_msgs = []
for node in node_list:
try:
retval, output = utils.checkStatus(node)
if retval != 0:
err_msgs.append(output)
continue
status = json.loads(output)
if (
status["corosync"]
or
status["pacemaker"]
or
status["cman"]
or
# not supported by older pcsd, do not fail if not present
status.get("pacemaker_remote", False)
):
err_msgs.append(
"Cluster is currently running on node %s. You need to stop "
"the cluster in order to restore the configuration."
% node
)
continue
except (ValueError, NameError, LookupError):
err_msgs.append("unable to determine status of the node %s" % node)
if err_msgs:
for msg in err_msgs:
utils.err(msg, False)
sys.exit(1)
# Temporarily disable config files syncing thread in pcsd so it will not
# rewrite restored files. 10 minutes should be enough time to restore.
# If node returns HTTP 404 it does not support config syncing at all.
for node in node_list:
retval, output = utils.pauseConfigSyncing(node, 10 * 60)
if not (retval == 0 or "(HTTP error: 404)" in output):
utils.err(output)
if infile_obj:
infile_obj.seek(0)
tarball_data = infile_obj.read()
else:
with open(infile_name, "rb") as tarball:
tarball_data = tarball.read()
error_list = []
for node in node_list:
retval, error = utils.restoreConfig(node, tarball_data)
if retval != 0:
error_list.append(error)
if error_list:
utils.err("unable to restore all nodes\n" + "\n".join(error_list))