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247 lines
9.1 KiB
Python
247 lines
9.1 KiB
Python
import os.path
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import time
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from pymilvus import connections
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from kubernetes import client, config
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from kubernetes.client.rest import ApiException
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from common.milvus_sys import MilvusSys
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from utils.util_log import test_log as log
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def wait_pods_ready(namespace, label_selector, expected_num=None, timeout=360):
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"""
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wait pods with label selector all ready
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:param namespace: the namespace where the release
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:type namespace: str
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:param label_selector: labels to restrict which pods are waiting to be ready
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:type label_selector: str
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:param expected_num: expected the minimum number of pods to be ready if not None
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:type expected_num: int
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:param timeout: limits the duration of the call
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:type timeout: int
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:example:
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>>> wait_pods_ready("default", "app.kubernetes.io/instance=scale-query", expected_num=9)
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"""
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config.load_kube_config()
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api_instance = client.CoreV1Api()
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try:
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all_pos_ready_flag = False
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time_cnt = 0
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while not all_pos_ready_flag and time_cnt < timeout:
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api_response = api_instance.list_namespaced_pod(namespace=namespace, label_selector=label_selector)
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all_pos_ready_flag = True
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if expected_num is not None and len(api_response.items) < expected_num:
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all_pos_ready_flag = False
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else:
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for item in api_response.items:
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if item.status.phase != 'Running':
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all_pos_ready_flag = False
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break
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for c in item.status.container_statuses:
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log.debug(f"{c.name} status is {c.ready}")
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if c.ready is False:
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all_pos_ready_flag = False
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break
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if not all_pos_ready_flag:
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log.debug("all pods are not ready, please wait")
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time.sleep(30)
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time_cnt += 30
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if all_pos_ready_flag:
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log.info(f"all pods in namespace {namespace} with label {label_selector} are ready")
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else:
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log.info(f"timeout for waiting all pods in namespace {namespace} with label {label_selector} ready")
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except ApiException as e:
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log.error("Exception when calling CoreV1Api->list_namespaced_pod: %s\n" % e)
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raise Exception(str(e))
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return all_pos_ready_flag
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def get_pod_list(namespace, label_selector):
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"""
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get pod list with label selector
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:param namespace: the namespace where the release
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:type namespace: str
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:param label_selector: labels to restrict which pods to list
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:type label_selector: str
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:example:
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>>> get_pod_list("chaos-testing", "app.kubernetes.io/instance=test-proxy-pod-failure, component=proxy")
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"""
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config.load_kube_config()
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api_instance = client.CoreV1Api()
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try:
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api_response = api_instance.list_namespaced_pod(namespace=namespace, label_selector=label_selector)
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return api_response.items
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except ApiException as e:
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log.error("Exception when calling CoreV1Api->list_namespaced_pod: %s\n" % e)
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raise Exception(str(e))
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def get_pod_ip_name_pairs(namespace, label_selector):
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"""
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get pod ip name pairs with label selector
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:param namespace: the namespace where the release
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:type namespace: str
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:param label_selector: labels to restrict which pods to list
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:type label_selector: str
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:example:
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>>> get_pod_ip_name_pairs("chaos-testing", "app.kubernetes.io/instance=test-proxy-pod-failure, component=querynode")
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"""
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m = dict()
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items = get_pod_list(namespace, label_selector)
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for item in items:
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ip = item.status.pod_ip
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name = item.metadata.name
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m[ip] = name
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return m
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def get_querynode_id_pod_pairs(namespace, label_selector):
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"""
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get milvus node id and corresponding pod name pairs with label selector
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:param namespace: the namespace where the release
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:type namespace: str
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:param label_selector: labels to restrict which pods to list
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:type label_selector: str
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:example:
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>>> querynode_id_pod_pair = get_querynode_id_pod_pairs("chaos-testing", "app.kubernetes.io/instance=milvus-multi-querynode, component=querynode")
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{
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5: 'milvus-multi-querynode-querynode-7b8f4b5c5-4pn42',
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9: 'milvus-multi-querynode-querynode-7b8f4b5c5-99tx7',
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1: 'milvus-multi-querynode-querynode-7b8f4b5c5-w9sk8',
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3: 'milvus-multi-querynode-querynode-7b8f4b5c5-xx84j',
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6: 'milvus-multi-querynode-querynode-7b8f4b5c5-x95dp'
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}
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"""
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# TODO: extend this function to other worker nodes, not only querynode
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querynode_ip_pod_pair = get_pod_ip_name_pairs(namespace, label_selector)
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querynode_id_pod_pair = {}
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ms = MilvusSys()
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for node in ms.query_nodes:
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ip = node["infos"]['hardware_infos']["ip"].split(":")[0]
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querynode_id_pod_pair[node["identifier"]] = querynode_ip_pod_pair[ip]
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return querynode_id_pod_pair
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def get_milvus_instance_name(namespace, host, port="19530"):
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"""
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get milvus instance name after connection
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:param namespace: the namespace where the release
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:type namespace: str
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:param host: milvus host ip
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:type host: str
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:param port: milvus port
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:type port: str
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:example:
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>>> milvus_instance_name = get_milvus_instance_name("chaos-testing", "10.96.250.111")
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"milvus-multi-querynode"
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"""
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connections.add_connection(_default={"host": host, "port": port})
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connections.connect(alias='_default')
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ms = MilvusSys()
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query_node_ip = ms.query_nodes[0]["infos"]['hardware_infos']["ip"].split(":")[0]
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pod_name = ""
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if ms.deploy_mode == "STANDALONE":
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# get all pods which label is app.kubernetes.io/name=milvus and component=standalone
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ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus, component=standalone")
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pod_name = ip_name_pairs[query_node_ip]
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if ms.deploy_mode == "DISTRIBUTED":
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# get all pods which label is app.kubernetes.io/name=milvus and component=querynode
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ip_name_pairs = get_pod_ip_name_pairs(namespace, "app.kubernetes.io/name=milvus, component=querynode")
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pod_name = ip_name_pairs[query_node_ip]
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config.load_kube_config()
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api_instance = client.CoreV1Api()
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try:
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api_response = api_instance.read_namespaced_pod(namespace=namespace, name=pod_name)
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except ApiException as e:
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log.error("Exception when calling CoreV1Api->list_namespaced_pod: %s\n" % e)
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raise Exception(str(e))
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milvus_instance_name = api_response.metadata.labels["app.kubernetes.io/instance"]
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return milvus_instance_name
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def export_pod_logs(namespace, label_selector, release_name=None):
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"""
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export pod logs with label selector to '/tmp/milvus'
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:param namespace: the namespace where the release
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:type namespace: str
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:param label_selector: labels to restrict which pods logs to export
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:type label_selector: str
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:param release_name: use the release name as server logs director name
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:type label_selector: str
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:example:
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>>> export_pod_logs("chaos-testing", "app.kubernetes.io/instance=mic-milvus")
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"""
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if isinstance(release_name, str):
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if len(release_name.strip()) == 0:
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raise ValueError("Got an unexpected space release_name")
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else:
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raise TypeError("Got an unexpected non-string release_name")
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pod_log_path = '/tmp/milvus_logs' if release_name is None else f'/tmp/milvus_logs/{release_name}'
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if not os.path.isdir(pod_log_path):
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os.makedirs(pod_log_path)
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# get pods and export logs
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items = get_pod_list(namespace, label_selector=label_selector)
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try:
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for item in items:
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pod_name = item.metadata.name
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os.system(f'kubectl logs {pod_name} > {pod_log_path}/{pod_name}.log 2>&1')
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except Exception as e:
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log.error(f"Exception when export pod {pod_name} logs: %s\n" % e)
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raise Exception(str(e))
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def read_pod_log(namespace, label_selector, release_name):
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config.load_kube_config()
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items = get_pod_list(namespace, label_selector=label_selector)
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try:
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# export log to /tmp/release_name path
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pod_log_path = f'/tmp/milvus_logs/{release_name}'
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if not os.path.isdir(pod_log_path):
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os.makedirs(pod_log_path)
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api_instance = client.CoreV1Api()
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for item in items:
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pod = item.metadata.name
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log.debug(f'Start to read {pod} log')
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logs = api_instance.read_namespaced_pod_log(name=pod, namespace=namespace, async_req=True)
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with open(f'{pod_log_path}/{pod}.log', "w") as f:
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f.write(logs.get())
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except ApiException as e:
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log.error(f"Exception when read pod {pod} logs: %s\n" % e)
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raise Exception(str(e))
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if __name__ == '__main__':
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label = "app.kubernetes.io/name=milvus, component=querynode"
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instance_name = get_milvus_instance_name("chaos-testing", "10.96.250.111")
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res = get_pod_list("chaos-testing", label_selector=label)
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m = get_pod_ip_name_pairs("chaos-testing", label_selector=label)
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export_pod_logs(namespace='chaos-testing', label_selector=label)
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