Python2 Function Invoker

About

⚠️ This function invoker is deprecated. Please use the Python 3 function invoker instead.

The Python 2 function invoker, as the name implies, supports functions written in Python 2. The invoker supports function arguments of type str or dict, determined by the message's Content-Type header. For messages containing Content-Type:application/json, the bytes payload is converted to a dict. Reflection is used to convert the return value. Currently only UTF-8 encoding is supported.

Supported Python Version: 2.7.x

Install as a riff invoker

riff invokers apply -f python2-invoker.yaml

Running Tests

This script will install a virtual environment for python 2.7 and run the tests.

./run_tests.sh

Update grpc modules

./setup.py grpc

Build the docker image

./build.sh

Running test functions in riff

./build.sh
riff create python tests/functions -n upper -p grpc --handler handle
riff publish -i upper -r -d "hello, world"

riff Commands

• riff init python2
• riff create python2

riff init python2

Initialize a python2 function

Synopsis

Generate the function based on the function source code specified as the filename, handler name, artifact and version specified for the function image repository and tag.

For example, type:

riff init python2 -i words -n uppercase --handler=process

to generate the resource definitions using sensible defaults.

riff init python2 [flags]

Options

      --handler string   the name of the function handler (default "{{ .FunctionName }}")
  -h, --help             help for python2

Options inherited from parent commands

  -a, --artifact string          path to the function artifact, source code or jar file
      --config string            config file (default is $HOME/.riff.yaml)
      --dry-run                  print generated function artifacts content to stdout only
  -f, --filepath string          path or directory used for the function resources (defaults to the current directory)
      --force                    overwrite existing functions artifacts
  -i, --input string             the name of the input topic (defaults to function name)
      --invoker-version string   the version of the invoker to use when building containers
  -n, --name string              the name of the function (defaults to the name of the current directory)
  -o, --output string            the name of the output topic (optional)
  -u, --useraccount string       the Docker user account to be used for the image repository (default "current OS user")
  -v, --version string           the version of the function image (default "0.0.1")

SEE ALSO

• riff init - Initialize a function

riff create python2

Create a python2 function

Synopsis

Create the function based on the function source code specified as the filename, handler name, artifact and version specified for the function image repository and tag.

For example, type:

riff create python2 -i words -n uppercase --handler=process

to create the resource definitions, and apply the resources, using sensible defaults.

riff create python2 [flags]

Options

      --handler string     the name of the function handler (default "{{ .FunctionName }}")
  -h, --help               help for python2
      --namespace string   the namespace used for the deployed resources (defaults to kubectl's default)
      --push               push the image to Docker registry

Options inherited from parent commands

  -a, --artifact string          path to the function artifact, source code or jar file
      --config string            config file (default is $HOME/.riff.yaml)
      --dry-run                  print generated function artifacts content to stdout only
  -f, --filepath string          path or directory used for the function resources (defaults to the current directory)
      --force                    overwrite existing functions artifacts
  -i, --input string             the name of the input topic (defaults to function name)
      --invoker-version string   the version of the invoker to use when building containers
  -n, --name string              the name of the function (defaults to the name of the current directory)
  -o, --output string            the name of the output topic (optional)
  -u, --useraccount string       the Docker user account to be used for the image repository (default "current OS user")
  -v, --version string           the version of the function image (default "0.0.1")

SEE ALSO

• riff create - Create a function (equivalent to init, build, apply)