def cluster_edit(argv):
if 'EDITOR' in os.environ:
if len(argv) > 1:
usage.cluster(["edit"])
sys.exit(1)
scope = None
scope_arg = ""
for arg in argv:
if "=" not in arg:
usage.cluster(["edit"])
sys.exit(1)
else:
arg_name, arg_value = arg.split("=", 1)
if arg_name == "scope" and "--config" not in utils.pcs_options:
if not utils.is_valid_cib_scope(arg_value):
utils.err("invalid CIB scope '%s'" % arg_value)
else:
scope_arg = arg
scope = arg_value
else:
usage.cluster(["edit"])
sys.exit(1)
if "--config" in utils.pcs_options:
scope = "configuration"
# Leave scope_arg empty as cluster_push will pick up a --config
# option from utils.pcs_options
scope_arg = ""
editor = os.environ['EDITOR']
tempcib = tempfile.NamedTemporaryFile(mode="w+", suffix=".pcs")
cib = utils.get_cib(scope)
tempcib.write(cib)
tempcib.flush()
try:
subprocess.call([editor, tempcib.name])
except OSError:
utils.err("unable to open file with $EDITOR: " + editor)
tempcib.seek(0)
newcib = "".join(tempcib.readlines())
if newcib == cib:
print("CIB not updated, no changes detected")
else:
cluster_push([arg for arg in [tempcib.name, scope_arg] if arg])
else:
utils.err("$EDITOR environment variable is not set")
def get_cib(argv):
if len(argv) > 2:
usage.cluster(["cib"])
sys.exit(1)
filename = None
scope = None
for arg in argv:
if "=" not in arg:
filename = arg
else:
arg_name, arg_value = arg.split("=", 1)
if arg_name == "scope" and "--config" not in utils.pcs_options:
if not utils.is_valid_cib_scope(arg_value):
utils.err("invalid CIB scope '%s'" % arg_value)
else:
scope = arg_value
else:
usage.cluster(["cib"])
sys.exit(1)
if "--config" in utils.pcs_options:
scope = "configuration"
if not filename:
print(utils.get_cib(scope).rstrip())
else:
try:
f = open(filename, 'w')
output = utils.get_cib(scope)
if output != "":
f.write(output)
else:
utils.err("No data in the CIB")
except IOError as e:
utils.err("Unable to write to file '%s', %s" %
(filename, e.strerror))
def cluster_push(argv):
if len(argv) > 2:
usage.cluster(["cib-push"])
sys.exit(1)
filename = None
scope = None
timeout = None
diff_against = None
if "--wait" in utils.pcs_options:
timeout = utils.validate_wait_get_timeout()
for arg in argv:
if "=" not in arg:
filename = arg
else:
arg_name, arg_value = arg.split("=", 1)
if arg_name == "scope":
if "--config" in utils.pcs_options:
utils.err("Cannot use both scope and --config")
if not utils.is_valid_cib_scope(arg_value):
utils.err("invalid CIB scope '%s'" % arg_value)
else:
scope = arg_value
elif arg_name == "diff-against":
diff_against = arg_value
else:
usage.cluster(["cib-push"])
sys.exit(1)
if "--config" in utils.pcs_options:
scope = "configuration"
if diff_against and scope:
utils.err("Cannot use both scope and diff-against")
if not filename:
usage.cluster(["cib-push"])
sys.exit(1)
try:
new_cib_dom = xml.dom.minidom.parse(filename)
if scope and not new_cib_dom.getElementsByTagName(scope):
utils.err("unable to push cib, scope '%s' not present in new cib" %
scope)
except (EnvironmentError, xml.parsers.expat.ExpatError) as e:
utils.err("unable to parse new cib: %s" % e)
if diff_against:
try:
xml.dom.minidom.parse(diff_against)
except (EnvironmentError, xml.parsers.expat.ExpatError) as e:
utils.err("unable to parse original cib: %s" % e)
runner = utils.cmd_runner()
command = [
"crm_diff", "--original", diff_against, "--new", filename,
"--no-version"
]
patch, error, dummy_retval = runner.run(command)
# dummy_retval == 1 means one of two things:
# a) an error has occured
# b) --original and --new differ
# therefore it's of no use to see if an error occurred
if error.strip():
utils.err("unable to diff the CIBs:\n" + error)
if not patch.strip():
print(
"The new CIB is the same as the original CIB, nothing to push."
)
sys.exit(0)
command = ["cibadmin", "--patch", "--xml-pipe"]
output, error, retval = runner.run(command, patch)
if retval != 0:
utils.err("unable to push cib\n" + error + output)
else:
command = ["cibadmin", "--replace", "--xml-file", filename]
if scope:
command.append("--scope=%s" % scope)
output, retval = utils.run(command)
if retval != 0:
utils.err("unable to push cib\n" + output)
print("CIB updated")
if "--wait" not in utils.pcs_options:
return
cmd = ["crm_resource", "--wait"]
if timeout:
cmd.extend(["--timeout", str(timeout)])
output, retval = utils.run(cmd)
if retval != 0:
msg = []
if retval == settings.pacemaker_wait_timeout_status:
msg.append("waiting timeout")
if output:
msg.append("\n" + output)
utils.err("\n".join(msg).strip())