drycc run give pod 20 minutes to execute, exceeding 20 minutes will raise a timeout exception

[lijianguo]

todo list:

1. should not raise timeout exception
2. drycc run type measure
3. drycc run type set limits
4. there are two modes: synchronous and asynchronous

[duanhongyi]

Please refer to the web procfile for initial restrictions

[duanhongyi]

design

• drycc run to asynchronous execution, use job.
• drycc run returns pod_name, add timeout parameter.
• drycc ps:logs can view pod logs

> drycc run -t 3600 echo 111
appname-run-a91321-adf141
> drycc ps:logs appname-run-a91321-adf141
111

job structure

{
   "apiVersion":"batch/v1",
   "kind":"Job",
   "metadata":{
      "name":"appname-run"
   },
   "spec":{
      "template":{
         "spec":{
            "containers":[
               {
                  "name":"appname-run",
                  "image":"127.0.0.1:5555/appname/appname:v3",
                  "command":[
                     "echo",
                     "111"
                  ]
               }
            ],
            "restartPolicy":"Never"
         }
      },
      "backoffLimit":0,
      "activeDeadlineSeconds":3600,
      "ttlSecondsAfterFinished":86400
   }
}

[duanhongyi]

K8s pod logs code snippet:

import asyncio
from kubernetes import config
from kubernetes.client import Configuration
from kubernetes.client.api import core_v1_api
from asgiref.sync import sync_to_async, async_to_sync


async def send(line):
    print(line)


@sync_to_async
def exec_commands(api_instance):
    kwargs = {"tail_lines": 10, "follow": True,  "_preload_content": False, "container": ""}
    stream = api_instance.read_namespaced_pod_log(
        'drycc-timeseries-main-0', 'drycc', **kwargs
    ).stream()
    for line in stream:
        async_to_sync(send)(line=line)

def main():
    config.load_kube_config()
    try:
        c = Configuration().get_default_copy()
    except AttributeError:
        c = Configuration()
        c.assert_hostname = False
    Configuration.set_default(c)
    core_v1 = core_v1_api.CoreV1Api()
    loop = asyncio.get_event_loop()
    loop.run_until_complete(exec_commands(core_v1))


if __name__ == '__main__':
    main()

[duanhongyi]

complete