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1
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import concurrent.futures |
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2
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# Change to False so this script makes changes |
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3
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DRY_RUN = True |
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4
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# Batch size to redeploy EVCs with set_queue |
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5
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BATCH_SIZE = 10 |
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6
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7
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mef_eline = controller.napps[("kytos", "mef_eline")] |
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8
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flow_manager = controller.napps[("kytos", "flow_manager")] |
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9
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10
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11
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def list_cookies_with_set_queue(flow_manager) -> set[int]: |
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"""List unique mef_eline cookies from the flows collection |
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13
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where the set_queue action is set (incorrectly) as the last action |
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14
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with output action.""" |
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15
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return set( |
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map( |
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lambda doc: int(doc["flow"]["cookie"].to_decimal()), |
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18
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filter( |
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19
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lambda doc: len(doc["flow"]["actions"]) > 1 |
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and doc["flow"]["actions"][-1]["action_type"] == "set_queue" |
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and doc["flow"]["actions"][-2]["action_type"] == "output", |
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22
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flow_manager.flow_controller.db.flows.find( |
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{ |
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"flow.owner": "mef_eline", |
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"flow.actions": {"$elemMatch": {"action_type": "set_queue"}}, |
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} |
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27
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), |
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28
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), |
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29
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) |
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30
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) |
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31
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32
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33
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def get_id_from_cookie(cookie) -> str: |
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"""Return the evc id given a cookie value.""" |
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evc_id = cookie & 0xFFFFFFFFFFFFFF |
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36
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return f"{evc_id:x}".zfill(14) |
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37
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38
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39
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def redeploy_evc(evc_id): |
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40
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"""Redeploy an EVC.""" |
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41
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import httpx |
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42
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43
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MEF_ELINE_URL = "http://localhost:8181/api/kytos/mef_eline/v2" |
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44
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url = f"{MEF_ELINE_URL}/evc/{evc_id}/redeploy" |
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45
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try: |
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46
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res = httpx.request("PATCH", url, timeout=30) |
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47
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except httpx.TimeoutException: |
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48
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print(f"Timeout while enabling EVC {evc_id}") |
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49
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if res.is_server_error or res.status_code in {424, 404, 409, 400}: |
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50
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print(f"Error disabling EVC {evc_id}: {res.text}") |
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51
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52
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53
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dry_run_key = "WILL" if not DRY_RUN else "WOULD" |
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54
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55
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print("Checking EVCs with action_type set_queue...") |
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56
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evc_ids = [] |
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57
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for cookie in list_cookies_with_set_queue(flow_manager): |
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58
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evc_ids.append(get_id_from_cookie(cookie)) |
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59
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print(f"It {dry_run_key} redeploy {len(evc_ids)} EVCs") |
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60
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61
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if not DRY_RUN: |
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62
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executor = concurrent.futures.ThreadPoolExecutor(BATCH_SIZE, "script:redeploy_evc") |
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63
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executor.map(redeploy_evc, evc_ids) |
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64
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executor.shutdown() |
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65
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66
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print("Finished!") |
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67
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kytos-ng /
mef_eline
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