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open_iscsi - minor refactoring (#3286)
* open_iscsi - minor refactoring * added changelog fragment
This commit is contained in:
Alexei Znamensky
GitHub
parent
edd7b84285
commit
1f5345881d
2 changed files with 47 additions and 66 deletions
4
changelogs/fragments/3286-open_iscsi-improvements.yaml
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4
changelogs/fragments/3286-open_iscsi-improvements.yaml
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@ -0,0 +1,4 @@
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minor_changes:
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- open_iscsi - minor refactoring (https://github.com/ansible-collections/community.general/pull/3286).
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bugfixes:
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- open_iscsi - calling ``run_command`` with arguments as ``list`` instead of ``str`` (https://github.com/ansible-collections/community.general/pull/3286).
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@ -125,6 +125,7 @@ import time
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from ansible.module_utils.basic import AnsibleModule
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ISCSIADM = 'iscsiadm'
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iscsiadm_cmd = None
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def compare_nodelists(l1, l2):
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@ -134,12 +135,12 @@ def compare_nodelists(l1, l2):
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def iscsi_get_cached_nodes(module, portal=None):
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cmd = '%s --mode node' % iscsiadm_cmd
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(rc, out, err) = module.run_command(cmd)
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cmd = [iscsiadm_cmd, '--mode', 'node']
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rc, out, err = module.run_command(cmd)
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nodes = []
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if rc == 0:
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lines = out.splitlines()
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nodes = []
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for line in lines:
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# line format is "ip:port,target_portal_group_tag targetname"
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parts = line.split()
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@ -156,7 +157,7 @@ def iscsi_get_cached_nodes(module, portal=None):
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# for newer versions see iscsiadm(8); also usr/iscsiadm.c for details
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# err can contain [N|n]o records...
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elif rc == 21 or (rc == 255 and "o records found" in err):
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nodes = []
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pass
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else:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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@ -164,16 +165,13 @@ def iscsi_get_cached_nodes(module, portal=None):
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def iscsi_discover(module, portal, port):
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cmd = '%s --mode discovery --type sendtargets --portal %s:%s' % (iscsiadm_cmd, portal, port)
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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cmd = [iscsiadm_cmd, '--mode', 'discovery', '--type', 'sendtargets', '--portal', '%s:%s' % (portal, port)]
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module.run_command(cmd, check_rc=True)
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def target_loggedon(module, target, portal=None, port=None):
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cmd = '%s --mode session' % iscsiadm_cmd
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(rc, out, err) = module.run_command(cmd)
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cmd = [iscsiadm_cmd, '--mode', 'session']
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rc, out, err = module.run_command(cmd)
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if portal is None:
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portal = ""
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@ -199,30 +197,23 @@ def target_login(module, target, portal=None, port=None):
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('node.session.auth.username', node_user),
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('node.session.auth.password', node_pass)]
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for (name, value) in params:
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cmd = '%s --mode node --targetname %s --op=update --name %s --value %s' % (iscsiadm_cmd, target, name, value)
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', name, '--value', value]
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module.run_command(cmd, check_rc=True)
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cmd = '%s --mode node --targetname %s --login' % (iscsiadm_cmd, target)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--login']
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if portal is not None and port is not None:
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cmd += ' --portal %s:%s' % (portal, port)
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cmd.append('--portal')
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cmd.append('%s:%s' % (portal, port))
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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module.run_command(cmd, check_rc=True)
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def target_logout(module, target):
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cmd = '%s --mode node --targetname %s --logout' % (iscsiadm_cmd, target)
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--logout']
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module.run_command(cmd, check_rc=True)
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def target_device_node(module, target):
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def target_device_node(target):
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# if anyone know a better way to find out which devicenodes get created for
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# a given target...
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@ -239,51 +230,39 @@ def target_device_node(module, target):
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def target_isauto(module, target, portal=None, port=None):
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cmd = '%s --mode node --targetname %s' % (iscsiadm_cmd, target)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target]
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if portal is not None:
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if port is not None:
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portal = '%s:%s' % (portal, port)
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cmd = '%s --portal %s' % (cmd, portal)
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if portal is not None and port is not None:
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cmd.append('--portal')
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cmd.append('%s:%s' % (portal, port))
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(rc, out, err) = module.run_command(cmd)
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dummy, out, dummy = module.run_command(cmd, check_rc=True)
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if rc == 0:
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lines = out.splitlines()
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for line in lines:
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if 'node.startup' in line:
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return 'automatic' in line
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return False
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else:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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lines = out.splitlines()
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for line in lines:
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if 'node.startup' in line:
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return 'automatic' in line
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return False
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def target_setauto(module, target, portal=None, port=None):
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cmd = '%s --mode node --targetname %s --op=update --name node.startup --value automatic' % (iscsiadm_cmd, target)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', 'node.startup', '--value', 'automatic']
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if portal is not None:
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if port is not None:
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portal = '%s:%s' % (portal, port)
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cmd = '%s --portal %s' % (cmd, portal)
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if portal is not None and port is not None:
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cmd.append('--portal')
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cmd.append('%s:%s' % (portal, port))
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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module.run_command(cmd, check_rc=True)
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def target_setmanual(module, target, portal=None, port=None):
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cmd = '%s --mode node --targetname %s --op=update --name node.startup --value manual' % (iscsiadm_cmd, target)
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cmd = [iscsiadm_cmd, '--mode', 'node', '--targetname', target, '--op=update', '--name', 'node.startup', '--value', 'manual']
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if portal is not None:
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if port is not None:
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portal = '%s:%s' % (portal, port)
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cmd = '%s --portal %s' % (cmd, portal)
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if portal is not None and port is not None:
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cmd.append('--portal')
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cmd.append('%s:%s' % (portal, port))
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(rc, out, err) = module.run_command(cmd)
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if rc > 0:
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module.fail_json(cmd=cmd, rc=rc, msg=err)
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module.run_command(cmd, check_rc=True)
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def main():
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@ -308,6 +287,7 @@ def main():
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),
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required_together=[['node_user', 'node_pass']],
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required_if=[('discover', True, ['portal'])],
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supports_check_mode=True,
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)
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@ -335,13 +315,10 @@ def main():
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cached = iscsi_get_cached_nodes(module, portal)
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# return json dict
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result = {}
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result['changed'] = False
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result = {'changed': False}
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if discover:
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if portal is None:
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module.fail_json(msg="Need to specify at least the portal (ip) to discover")
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elif check:
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if check:
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nodes = cached
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else:
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iscsi_discover(module, portal, port)
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@ -376,13 +353,13 @@ def main():
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if (login and loggedon) or (not login and not loggedon):
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result['changed'] |= False
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if login:
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result['devicenodes'] = target_device_node(module, target)
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result['devicenodes'] = target_device_node(target)
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elif not check:
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if login:
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target_login(module, target, portal, port)
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# give udev some time
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time.sleep(1)
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result['devicenodes'] = target_device_node(module, target)
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result['devicenodes'] = target_device_node(target)
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else:
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target_logout(module, target)
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result['changed'] |= True
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