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main.py
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main.py
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# Copyright 2021-2022 The Memphis Authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http:#www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from itertools import count
from kubernetes import client, config
from kubernetes.stream import stream
import socket
import os
try:
print("- Loading k8s config")
# Configs can be set in Configuration class directly or using helper utility
config.load_incluster_config()
# config.load_kube_config()
v1 = client.CoreV1Api()
## Mongo Section ##
print("- Searching for memphis-mongodb-0")
busybox_name = socket.gethostname()
namespace = os.getenv('NAMESPACE')
mongo_primary_pod_name = "memphis-mongodb-0"
mongo_secondary_pod_name = "memphis-mongodb-1"
counter_arr = [0,0]
while counter_arr[0] != 1 and counter_arr[1] != 1:
ret2 = v1.list_namespaced_pod(namespace)
for i in ret2.items:
if(i.metadata.name == mongo_primary_pod_name and i.status.phase == "Running"):
counter_arr[0] = 1
if(i.metadata.name == mongo_secondary_pod_name and i.status.phase == "Running"):
counter_arr[1] = 1
print("- Both replicas are up")
print("- Starting to configure memphis-mongodb")
except v1 as e:
print("Error: %s\n" % e)
try:
exec_command = [
'/bin/sh',
'-c',
'mongo < /mnt/scripts/mongo-startup-script.sh']
while True:
resp = stream(v1.connect_get_namespaced_pod_exec,
mongo_primary_pod_name,
namespace,
command=exec_command,
stderr=True, stdin=True,
stdout=True, tty=False)
print("- Response: " + resp)
break
except v1 as e:
print("Error: %s\n" % e)
try:
print("- Done. Sleeping")
except:
print("Error")