servicestatus.py

# Copyright (c) Microsoft Corporation
# All rights reserved.
#
# MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
# to permit persons to whom the Software is furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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import yaml
import os
import sys
from kubernetes import client, config
from kubernetes.client.rest import ApiException



# To check a service ready or not.
# Note that service name should be same as the app-name in
#     labels:
#        app: app-name
def is_service_ready(servicename):

    label_selector_str="app={0}".format(servicename)

    config.load_kube_config()
    v1 = client.CoreV1Api()

    try:
        pod_list = v1.list_pod_for_all_namespaces(label_selector=label_selector_str, watch=False)
    except ApiException as e:
        print "Exception when calling CoreV1Api->list_pod_for_all_namespaces: %s\n" % e
        sys.exit(1)

    if len(pod_list.items) == 0:
        return False

    for pod in pod_list.items:
        if pod.status.container_statuses is None:
            return False
        for container in pod.status.container_statuses:
            if container.ready != True:
                return False

    return True




# To check a service ready or not.
# Note that service name should be same as the app-name in
#     labels:
#        key : value
def pod_is_ready_or_not(label_key, label_value):

    label_selector_str="{0}={1}".format(label_key, label_value)

    config.load_kube_config()
    v1 = client.CoreV1Api()

    try:
        pod_list = v1.list_pod_for_all_namespaces(label_selector=label_selector_str, watch=False)
    except ApiException as e:
        print "Exception when calling CoreV1Api->list_pod_for_all_namespaces: %s\n" % e
        return False

    if len(pod_list.items) == 0:
        return False

    for pod in pod_list.items:
        if pod.status.container_statuses is None:
            return False
        for container in pod.status.container_statuses:
            if container.ready != True:
                return False

    return True