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open_iscsi - minor refactoring (#3286) (#3310)

* open_iscsi - minor refactoring

* added changelog fragment

(cherry picked from commit 1f5345881d)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>
This commit is contained in:
patchback[bot] 2021-08-31 15:04:39 +02:00 committed by GitHub
parent 2b6bbd9f91
commit 4c100aef47
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 47 additions and 66 deletions

View file

@ -0,0 +1,4 @@
minor_changes:
- open_iscsi - minor refactoring (https://github.com/ansible-collections/community.general/pull/3286).
bugfixes:
- open_iscsi - calling ``run_command`` with arguments as ``list`` instead of ``str`` (https://github.com/ansible-collections/community.general/pull/3286).

View file

@ -125,6 +125,7 @@ import time
from ansible.module_utils.basic import AnsibleModule
ISCSIADM = 'iscsiadm'
iscsiadm_cmd = None
def compare_nodelists(l1, l2):
@ -134,12 +135,12 @@ def compare_nodelists(l1, l2):
def iscsi_get_cached_nodes(module, portal=None):
cmd = '%s --mode node' % iscsiadm_cmd
(rc, out, err) = module.run_command(cmd)
cmd = [iscsiadm_cmd, '--mode', 'node']
rc, out, err = module.run_command(cmd)
nodes = []
if rc == 0:
lines = out.splitlines()
nodes = []
for line in lines:
# line format is "ip:port,target_portal_group_tag targetname"
parts = line.split()
@ -156,7 +157,7 @@ def iscsi_get_cached_nodes(module, portal=None):
# for newer versions see iscsiadm(8); also usr/iscsiadm.c for details
# err can contain [N|n]o records...
elif rc == 21 or (rc == 255 and "o records found" in err):
nodes = []
pass
else:
module.fail_json(cmd=cmd, rc=rc, msg=err)
@ -164,16 +165,13 @@ def iscsi_get_cached_nodes(module, portal=None):
def iscsi_discover(module, portal, port):
cmd = '%s --mode discovery --type sendtargets --portal %s:%s' % (iscsiadm_cmd, portal, port)
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
cmd = [iscsiadm_cmd, '--mode', 'discovery', '--type', 'sendtargets', '--portal', '%s:%s' % (portal, port)]
module.run_command(cmd, check_rc=True)
def target_loggedon(module, target, portal=None, port=None):
cmd = '%s --mode session' % iscsiadm_cmd
(rc, out, err) = module.run_command(cmd)
cmd = [iscsiadm_cmd, '--mode', 'session']
rc, out, err = module.run_command(cmd)
if portal is None:
portal = ""
@ -199,30 +197,23 @@ def target_login(module, target, portal=None, port=None):
('node.session.auth.username', node_user),
('node.session.auth.password', node_pass)]
for (name, value) in params:
cmd = '%s --mode node --targetname %s --op=update --name %s --value %s' % (iscsiadm_cmd, target, name, value)
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', name, '--value', value]
module.run_command(cmd, check_rc=True)
cmd = '%s --mode node --targetname %s --login' % (iscsiadm_cmd, target)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--login']
if portal is not None and port is not None:
cmd += ' --portal %s:%s' % (portal, port)
cmd.append('--portal')
cmd.append('%s:%s' % (portal, port))
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
module.run_command(cmd, check_rc=True)
def target_logout(module, target):
cmd = '%s --mode node --targetname %s --logout' % (iscsiadm_cmd, target)
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--logout']
module.run_command(cmd, check_rc=True)
def target_device_node(module, target):
def target_device_node(target):
# if anyone know a better way to find out which devicenodes get created for
# a given target...
@ -239,51 +230,39 @@ def target_device_node(module, target):
def target_isauto(module, target, portal=None, port=None):
cmd = '%s --mode node --targetname %s' % (iscsiadm_cmd, target)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target]
if portal is not None:
if port is not None:
portal = '%s:%s' % (portal, port)
cmd = '%s --portal %s' % (cmd, portal)
if portal is not None and port is not None:
cmd.append('--portal')
cmd.append('%s:%s' % (portal, port))
(rc, out, err) = module.run_command(cmd)
dummy, out, dummy = module.run_command(cmd, check_rc=True)
if rc == 0:
lines = out.splitlines()
for line in lines:
if 'node.startup' in line:
return 'automatic' in line
return False
else:
module.fail_json(cmd=cmd, rc=rc, msg=err)
def target_setauto(module, target, portal=None, port=None):
cmd = '%s --mode node --targetname %s --op=update --name node.startup --value automatic' % (iscsiadm_cmd, target)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', 'node.startup', '--value', 'automatic']
if portal is not None:
if port is not None:
portal = '%s:%s' % (portal, port)
cmd = '%s --portal %s' % (cmd, portal)
if portal is not None and port is not None:
cmd.append('--portal')
cmd.append('%s:%s' % (portal, port))
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
module.run_command(cmd, check_rc=True)
def target_setmanual(module, target, portal=None, port=None):
cmd = '%s --mode node --targetname %s --op=update --name node.startup --value manual' % (iscsiadm_cmd, target)
cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', 'node.startup', '--value', 'manual']
if portal is not None:
if port is not None:
portal = '%s:%s' % (portal, port)
cmd = '%s --portal %s' % (cmd, portal)
if portal is not None and port is not None:
cmd.append('--portal')
cmd.append('%s:%s' % (portal, port))
(rc, out, err) = module.run_command(cmd)
if rc > 0:
module.fail_json(cmd=cmd, rc=rc, msg=err)
module.run_command(cmd, check_rc=True)
def main():
@ -308,6 +287,7 @@ def main():
),
required_together=[['node_user', 'node_pass']],
required_if=[('discover', True, ['portal'])],
supports_check_mode=True,
)
@ -335,13 +315,10 @@ def main():
cached = iscsi_get_cached_nodes(module, portal)
# return json dict
result = {}
result['changed'] = False
result = {'changed': False}
if discover:
if portal is None:
module.fail_json(msg="Need to specify at least the portal (ip) to discover")
elif check:
if check:
nodes = cached
else:
iscsi_discover(module, portal, port)
@ -376,13 +353,13 @@ def main():
if (login and loggedon) or (not login and not loggedon):
result['changed'] |= False
if login:
result['devicenodes'] = target_device_node(module, target)
result['devicenodes'] = target_device_node(target)
elif not check:
if login:
target_login(module, target, portal, port)
# give udev some time
time.sleep(1)
result['devicenodes'] = target_device_node(module, target)
result['devicenodes'] = target_device_node(target)
else:
target_logout(module, target)
result['changed'] |= True