问使用Linux服务健康检查启动EC2实例

EN

import boto3
import requests
import time

AWS_Access_Key_ID = 
AWS_Secret_Access_Key = 

DELAY_TIME=10 # 10 Seconds

region = 'us-east-2'
# instances = ['']

instances = {
  'instance id': 'http://link',
  'instance id': 'http://link'
  
}

ec2 = None

try:
  ec2 = boto3.client('ec2', aws_access_key_id=AWS_Access_Key_ID, aws_secret_access_key=AWS_Secret_Access_Key, region_name=region)
  # ec2 = boto3.resource('ec2',aws_access_key_id=AWS_Access_Key_ID, aws_secret_access_key=AWS_Secret_Access_Key, region_name=region)
except Exception as e:
  print(e)
  print("AWS CREDS ERROR, Exiting...")
  exit()

def startInstances(instancesIds):
  if(type(instancesIds) != list):  
    instancesIds = [instancesIds]

  try:
    response = ec2.start_instances(InstanceIds=instancesIds, DryRun=False)
    print(response)
    print("Instances Started")
  except ClientError as e:
    print(e)
    print("Instances Failed to Start")

def stopInstances(instancesIds):
  if(type(instancesIds) != list):  
    instancesIds = [instancesIds
    ]
  try:
    response = ec2.stop_instances(InstanceIds=instancesIds, DryRun=False)
    print(response)
    print("Instances Stopped")
  except ClientError as e:
    print(e)
    print("Instances Failed to Stop")

def check():
  for x in instances:
    retry = 0
    live = False

    print("Checking Webiste " + instances[x])

    while(retry < 5):
      try:
        r = requests.get(instances[x] ,verify=True)
        if(r.status_code == 200):
          live = True
        break
      except: 
        print("Not Live, retry time " + str(retry + 1))
        print("Delaying request for " + str(DELAY_TIME) + " seconds...")
        retry += 1
        time.sleep(DELAY_TIME)

    if(live):
      print("Website is live")
      # call function  to start the ec2 instance
      startInstances(x)
    else:
      # call function to stop the ec2 instance
      print('Website is dead') 
      stopInstances(x)   
    print("")

def main():
  check()

if __name__ == '__main__':
  main()