Aliyun Function Compute#

Lithops with Aliyun Function Compute as serverless compute backend.

Installation#

  1. Install Alibaba Cloud backend dependencies:

$ python3 -m pip install lithops[aliyun]
  1. Access to your console and activate your Functions service instance.

Configuration#

  1. Access to your Function Compute dashboard, choose your preferred region, and copy the public endpoint.

  2. Access to the Resource Access Management (RAM) Roles dashboard, and create a new Role that contains the AliyunOSSFullAccess permission. Alternatively you can use an already created Role that contains the AliyunOSSFullAccess permission.

  3. Edit your Lithops config and add the following keys:

  lithops:
      backend : aliyun_fc

  aliyun:
    access_key_id: <ACCESS_KEY_ID>
    access_key_secret: <ACCESS_KEY_SECRET>

  aliyun_fc:
      public_endpoint : <PUBLIC_ENDPOINT>
      role_arn: <ROLE_ARN>
  1. (optional) By default Lithops will automatically create a new service in your Function Compute account. For this purpose your user must have List and Create permissions to Function Compute. Alternatively, you can create a new service through the dashboard (or use one already created), assign the Role created in the previous step (Accessing to service configuration –> Modify Configuration –> Role Config), and configure the service entry in the aliyun_cf config section.

Summary of configuration keys for Aliyun#

Group

Key

Default

Mandatory

Additional info

aliyun

access_key_id

yes

Access Key Id

aliyun

access_key_secret

yes

Access Key Secret

Summary of configuration keys for Alibaba Functions Compute:#

Group

Key

Default

Mandatory

Additional info

aliyun_fc

public_endpoint

yes

public endpoint (URL) to the service. OSS and FC endpoints are different.

aliyun_fc

role_arn

yes

Role ARN. For example: acs:ram::5244532493961771:role/aliyunfclogexecutionrole

aliyun_fc

service

no

Service name

aliyun_fc

max_workers

300

no

Max number of workers per FunctionExecutor()

aliyun_fc

worker_processes

1

no

Number of Lithops processes within a given worker. This can be used to parallelize function activations within a worker

aliyun_fc

runtime

no

Docker image name.

aliyun_fc

runtime_memory

256

no

Memory limit in MB. Default 256MB

aliyun_fc

runtime_timeout

300

no

Runtime timeout in seconds. Default 5 minutes

aliyun_fc

invoke_pool_threads

300

no

Number of concurrent threads used for invocation