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""" This module was created to be the main interface between the telemetry napp and all |
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other kytos napps' APIs """ |
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from collections import defaultdict |
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import httpx |
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from napps.kytos.telemetry_int import settings |
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from napps.kytos.telemetry_int.exceptions import UnrecoverableError |
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from tenacity import ( |
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retry, |
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retry_if_exception_type, |
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stop_after_attempt, |
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wait_combine, |
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wait_fixed, |
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wait_random, |
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) |
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from kytos.core.retry import before_sleep |
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@retry( |
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stop=stop_after_attempt(5), |
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wait=wait_combine(wait_fixed(3), wait_random(min=2, max=7)), |
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before_sleep=before_sleep, |
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retry=retry_if_exception_type((httpx.RequestError, httpx.HTTPStatusError)), |
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) |
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async def get_evcs(**kwargs) -> dict: |
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"""Get EVCs.""" |
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archived = "false" |
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async with httpx.AsyncClient(base_url=settings.mef_eline_api) as client: |
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endpoint = f"/evc/?archived={archived}" |
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if kwargs: |
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query_args = [f"{k}={v}" for k, v in kwargs.items()] |
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endpoint = f"{endpoint}&{'&'.join(query_args)}" |
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response = await client.get(endpoint, timeout=10) |
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if response.is_server_error: |
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raise httpx.RequestError(response.text) |
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if not response.is_success: |
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raise UnrecoverableError( |
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f"Failed to get_evcs archived {archived}" |
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f"status code {response.status_code}, response text: {response.text}" |
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) |
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return response.json() |
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@retry( |
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stop=stop_after_attempt(5), |
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wait=wait_combine(wait_fixed(3), wait_random(min=2, max=7)), |
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before_sleep=before_sleep, |
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retry=retry_if_exception_type(httpx.RequestError), |
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) |
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async def get_evc(evc_id: str, exclude_archived=True) -> dict: |
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"""Get EVC.""" |
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async with httpx.AsyncClient(base_url=settings.mef_eline_api) as client: |
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response = await client.get(f"/evc/{evc_id}", timeout=10) |
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if response.status_code == 404: |
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return {} |
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if response.is_server_error: |
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raise httpx.RequestError(response.text) |
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if not response.is_success: |
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raise UnrecoverableError( |
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f"Failed to get_evc id {evc_id} " |
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f"status code {response.status_code}, response text: {response.text}" |
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) |
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data = response.json() |
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if data["archived"] and exclude_archived: |
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return {} |
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return {data["id"]: data} |
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@retry( |
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stop=stop_after_attempt(5), |
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wait=wait_combine(wait_fixed(3), wait_random(min=2, max=7)), |
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before_sleep=before_sleep, |
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retry=retry_if_exception_type(httpx.RequestError), |
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) |
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async def get_stored_flows( |
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cookies: list[int] = None, |
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) -> dict[int, list[dict]]: |
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"""Get flow_manager stored_flows grouped by cookies given a list of cookies.""" |
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cookies = cookies or [] |
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cookie_range_args = [] |
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for cookie in cookies: |
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# gte cookie |
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cookie_range_args.append(f"cookie_range={cookie}") |
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# lte cookie |
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cookie_range_args.append(f"cookie_range={cookie}") |
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endpoint = "stored_flows?state=installed&state=pending" |
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if cookie_range_args: |
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endpoint = f"{endpoint}&{'&'.join(cookie_range_args)}" |
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async with httpx.AsyncClient(base_url=settings.flow_manager_api) as client: |
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response = await client.get(f"/{endpoint}", timeout=10) |
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if response.is_server_error: |
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raise httpx.RequestError(response.text) |
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if not response.is_success: |
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raise UnrecoverableError( |
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f"Failed to get_stored_flows cookies {cookies} " |
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f"status code {response.status_code}, response text: {response.text}" |
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) |
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return _map_stored_flows_by_cookies(response.json()) |
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def _map_stored_flows_by_cookies(stored_flows: dict) -> dict[int, list[dict]]: |
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"""Map stored flows by cookies. |
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This is for mapping the data by cookies, just to it can be |
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reused upfront by bulk operations. |
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""" |
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flows_by_cookies = defaultdict(list) |
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for flows in stored_flows.values(): |
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for flow in flows: |
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flows_by_cookies[flow["flow"]["cookie"]].append(flow) |
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return flows_by_cookies |
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@retry( |
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stop=stop_after_attempt(5), |
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wait=wait_combine(wait_fixed(3), wait_random(min=2, max=7)), |
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before_sleep=before_sleep, |
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retry=retry_if_exception_type(httpx.RequestError), |
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) |
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async def add_evcs_metadata( |
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evcs: dict[str, dict], new_metadata: dict, force=False |
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) -> dict: |
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"""Add EVC metadata.""" |
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circuit_ids = [evc_id for evc_id, evc in evcs.items() if evc] |
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# return early if there's no circuits to update their metadata |
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if not circuit_ids: |
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return {} |
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async with httpx.AsyncClient(base_url=settings.mef_eline_api) as client: |
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response = await client.post( |
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"/evc/metadata", |
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timeout=10, |
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json={ |
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**new_metadata, |
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**{"circuit_ids": circuit_ids}, |
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}, |
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) |
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if response.is_success: |
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return response.json() |
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# Ignore 404 if force just so it's easier to handle this concurrently |
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if response.status_code == 404 and force: |
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return {} |
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if response.is_server_error: |
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raise httpx.RequestError(response.text) |
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raise UnrecoverableError( |
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f"Failed to add_evc_metadata for EVC ids {list(evcs.keys())} " |
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f"status code {response.status_code}, response text: {response.text}" |
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) |
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kytos-ng /
telemetry_int
