Added endpoint to delete switch

[Alopalao]

Closes #164 Closes #77 Closes #76

Summary

Added endpoint to delete switch. Requirements:

• Switch needs to be DISABLED.
• Switch interfaces should have all their tags available.
• There should not be installed flows related to the switch
• Switch should not have links

To clean left-over flows related to switch, related links should be disabled. Needs coloring PR #59

Changed how enabling/disabling components work. It is better explained in this comment.

Local Tests

Deleted disabled switch

• Checked pathfinder topology.

End-To-End Tests

tests/test_e2e_01_kytos_startup.py ..                                    [  0%]
tests/test_e2e_05_topology.py ......FFFF.........                        [  8%]
tests/test_e2e_10_mef_eline.py ..........ss.....x.....x................  [ 23%]
tests/test_e2e_11_mef_eline.py ......                                    [ 26%]
tests/test_e2e_12_mef_eline.py .....Xx.                                  [ 29%]
tests/test_e2e_13_mef_eline.py ....Xs.s.....Xs.s.XXxX.xxxx..X........... [ 45%]
.                                                                        [ 45%]
tests/test_e2e_14_mef_eline.py x                                         [ 46%]
tests/test_e2e_15_mef_eline.py .....                                     [ 48%]
tests/test_e2e_20_flow_manager.py .....................                  [ 56%]
tests/test_e2e_21_flow_manager.py ...                                    [ 57%]
tests/test_e2e_22_flow_manager.py ...............                        [ 63%]
tests/test_e2e_23_flow_manager.py ..............                         [ 69%]
tests/test_e2e_30_of_lldp.py ..F.                                        [ 70%]
tests/test_e2e_31_of_lldp.py ...                                         [ 71%]
tests/test_e2e_32_of_lldp.py ...                                         [ 72%]
tests/test_e2e_40_sdntrace.py ..............                             [ 78%]
tests/test_e2e_41_kytos_auth.py ........                                 [ 81%]
tests/test_e2e_42_sdntrace.py ..                                         [ 82%]
tests/test_e2e_50_maintenance.py ........................                [ 91%]
tests/test_e2e_60_of_multi_table.py .....                                [ 93%]
tests/test_e2e_70_kytos_stats.py ........                                [ 96%]
tests/test_e2e_80_pathfinder.py ........                                 [100%]

The failures are fixed in PR #277

[Alopalao]

Pushed an unfinished but working state of switch deletion. Going to continue working after I return from the holidays.

[Alopalao]

End-To-End Tests results:

tests/test_e2e_01_kytos_startup.py ..                                    [  0%]
tests/test_e2e_05_topology.py ......FFFF.........                        [  8%]
tests/test_e2e_10_mef_eline.py ..........ss.....x.....x................  [ 23%]
tests/test_e2e_11_mef_eline.py ......                                    [ 26%]
tests/test_e2e_12_mef_eline.py .....Xx.                                  [ 29%]
tests/test_e2e_13_mef_eline.py ....Xs.s.....Xs.s.XXxX.xxxx..X........... [ 45%]
.                                                                        [ 45%]
tests/test_e2e_14_mef_eline.py x                                         [ 46%]
tests/test_e2e_15_mef_eline.py .....                                     [ 48%]
tests/test_e2e_20_flow_manager.py .....................                  [ 56%]
tests/test_e2e_21_flow_manager.py ...                                    [ 57%]
tests/test_e2e_22_flow_manager.py ...............                        [ 63%]
tests/test_e2e_23_flow_manager.py ..............                         [ 69%]
tests/test_e2e_30_of_lldp.py ..F.                                        [ 70%]
tests/test_e2e_31_of_lldp.py ...                                         [ 71%]
tests/test_e2e_32_of_lldp.py ...                                         [ 72%]
tests/test_e2e_40_sdntrace.py ..............                             [ 78%]
tests/test_e2e_41_kytos_auth.py ........                                 [ 81%]
tests/test_e2e_42_sdntrace.py ..                                         [ 82%]
tests/test_e2e_50_maintenance.py ........................                [ 91%]
tests/test_e2e_60_of_multi_table.py .....                                [ 93%]
tests/test_e2e_70_kytos_stats.py ........                                [ 96%]
tests/test_e2e_80_pathfinder.py ........                                 [100%]

The failures are fixed in PR #277

[Alopalao]

Following this comment.

Commit 13657265f894a87a99b51dd2eec1ec7208828ddc

Now it is implemented a clear hierarchy:

1. Switch
2. Interface
3. Link

Now enabling a component will be "private". For example enabling an interface will not enable a link (when both endpoints are enabled as a result). With this change there may be some changes to kytos.core as well. Considering all components derive from common.Generic:

1. Interface enabling overwrite: Interface enabling cannot be done if its switch is disabled. To have this method enabling a switch seems useless (could be problematic if used without checking requirements) since its switch will be always enabled.
2. Link checking enabled overwrite: If a link is disabled/enabled, its variable _enabled always going to reflect this state correctly. Checking endpoints seems unnecessary. But, this method is not problematic at all and we could leave as it is.

[Alopalao]

New e2e results:

============================= test session starts ==============================
platform linux -- Python 3.9.2, pytest-7.2.0, pluggy-1.3.0
rootdir: /tests
plugins: timeout-2.1.0, rerunfailures-10.2, anyio-3.6.2
collected 256 items

tests/test_e2e_01_kytos_startup.py ..                                    [  0%]
tests/test_e2e_05_topology.py ...............RRF....                     [  8%]
tests/test_e2e_10_mef_eline.py ..........ss.....x.....x................  [ 24%]
tests/test_e2e_11_mef_eline.py ......                                    [ 26%]
tests/test_e2e_12_mef_eline.py .....Xx.                                  [ 29%]
tests/test_e2e_13_mef_eline.py ....Xs.s.....Xs.s.XXxX.xxxx..X........... [ 45%]
.                                                                        [ 46%]
tests/test_e2e_14_mef_eline.py x                                         [ 46%]
tests/test_e2e_15_mef_eline.py .....                                     [ 48%]
tests/test_e2e_20_flow_manager.py .....................                  [ 56%]
tests/test_e2e_21_flow_manager.py ...                                    [ 57%]
tests/test_e2e_22_flow_manager.py ...............                        [ 63%]
tests/test_e2e_23_flow_manager.py ..............                         [ 69%]
tests/test_e2e_30_of_lldp.py ....                                        [ 70%]
tests/test_e2e_31_of_lldp.py ...                                         [ 71%]
tests/test_e2e_32_of_lldp.py ...                                         [ 73%]
tests/test_e2e_40_sdntrace.py ..............                             [ 78%]
tests/test_e2e_41_kytos_auth.py ........                                 [ 81%]
tests/test_e2e_42_sdntrace.py ..                                         [ 82%]
tests/test_e2e_50_maintenance.py ........................                [ 91%]
tests/test_e2e_60_of_multi_table.py .....                                [ 93%]
tests/test_e2e_70_kytos_stats.py ........                                [ 96%]
tests/test_e2e_80_pathfinder.py ss......                                 [100%]

Topology error fixed in new commit from PR

[Alopalao]

let me know you've also explored it locally one last time with the latest changes

Yes, I have tested the new enable dynamics. The UI helped speeding it up.

[viniarck]

let me know you've also explored it locally one last time with the latest changes

Yes, I have tested the new enable dynamics. The UI helped speeding it up.

Excellent. Let's ship this then.