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Confirm portchannel and member ports exist before attempting delete operations #454

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Confirm portchannel and member ports exist before attempting delete operations #454

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20272d7
[config/main.py] Fixed - added validations such that portchannel and …
madhupalu Feb 3, 2019
5539480
Added validations to portchannel & members deletes only it is configu…
madhupalu Feb 3, 2019
448d9e2
[config/main.py] added validations for portchannel/members on crud op…
madhupalu Feb 12, 2019
d1b326e
Merge branch 'azure277' of https://github.com/madhupalu/sonic-utiliti…
madhupalu Feb 12, 2019
2e153a8
Fix merge conflicts
madhupalu Feb 12, 2019
b3a5e7b
[config/main.py] Confirm portchannel and member ports exist before at…
madhupalu Feb 17, 2019
33b0979
[config/main.py] addressed review comments and fixed indent issue wit…
madhupalu Mar 7, 2019
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45 changes: 42 additions & 3 deletions config/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -450,7 +450,13 @@ def add_portchannel(ctx, portchannel_name, min_links, fallback):
def remove_portchannel(ctx, portchannel_name):
"""Remove port channel"""
db = ctx.obj['db']
db.set_entry('PORTCHANNEL', portchannel_name, None)
if len(db.get_entry('PORTCHANNEL', portchannel_name)) != 0:
keys = [(k,v) for k,v in db.get_table('PORTCHANNEL_MEMBER') if k == portchannel_name]
for k in keys:
db.set_entry('PORTCHANNEL_MEMBER', k, None)
db.set_entry('PORTCHANNEL', portchannel_name, None)
else:
ctx.fail("{} is not configured".format(portchannel_name))

@portchannel.group('member')
@click.pass_context
Expand All @@ -464,6 +470,22 @@ def portchannel_member(ctx):
def add_portchannel_member(ctx, portchannel_name, port_name):
"""Add member to port channel"""
db = ctx.obj['db']
port_channel = db.get_entry('PORTCHANNEL', portchannel_name)
if get_interface_naming_mode() == "alias":
port_name = interface_alias_to_name(port_name)
if port_name is None:
ctx.fail("'port_name' is None!")

if len(port_channel) == 0:
ctx.fail("{} doesn't exists".format(portchannel_name))

members = port_channel.get('members', [])
if port_name in members:
ctx.fail("{} is already a member of {}".format(port_name, portchannel_name))

members.append(port_name)
port_channel['members'] = members
db.set_entry('PORTCHANNEL', portchannel_name, port_channel)
db.set_entry('PORTCHANNEL_MEMBER', (portchannel_name, port_name),
{'NULL': 'NULL'})

Expand All @@ -474,9 +496,26 @@ def add_portchannel_member(ctx, portchannel_name, port_name):
def del_portchannel_member(ctx, portchannel_name, port_name):
"""Remove member from portchannel"""
db = ctx.obj['db']
port_channel = db.get_entry('PORTCHANNEL', portchannel_name)
if get_interface_naming_mode() == "alias":
port_name = interface_alias_to_name(port_name)
if port_name is None:
ctx.fail("'port_name' is None!")

if len(port_channel) == 0:
ctx.fail("{} doesn't exists".format(portchannel_name))

members = port_channel.get('members', [])
if port_name not in members:
ctx.fail("{} is not a member of {}".format(port_name, portchannel_name))

members.remove(port_name)
if len(members) == 0:
del port_channel['members']
else:
port_channel['members'] = members
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same as above

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we need the **members** variable to delete the port channel when there are no members in it. AFAIK, we delete port channels when there are no members in it, not sure the SONiC use case. please advise.

Thanks
Madhu

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addressed the review comments and updated the PR. Thanks.

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there're alternative ways of checking if the port-channel has members or not. please do not use this approach. we are trying to make the code DRY by not having duplicated information on two places; this attribute won't be supported in the future release

db.set_entry('PORTCHANNEL', portchannel_name, port_channel)
db.set_entry('PORTCHANNEL_MEMBER', (portchannel_name, port_name), None)
db.set_entry('PORTCHANNEL_MEMBER', portchannel_name + '|' + port_name, None)


#
# 'mirror_session' group ('config mirror_session ...')
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