Deploy python function

[AntonOellerer]

Hey, I am currently unsucessfully trying to deploy a python serverless function with the github action. My deploy.yml:

jobs:
  deploy:
    name: deploy
    runs-on: ubuntu-20.04
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4
        with:
          python-version-file: '.python-version'
      - uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
      - run: npm ci
      - name: Deploy
        uses: serverless/[email protected]
        with:
          args: deploy --stage ${{ github.ref_name }} --verbose
        env:
          SERVERLESS_ACCESS_KEY: ${{ secrets.SERVERLESS_ACCESS_KEY }}

I also tried it with the approach suggested in the README.md, using

    - name: Install Plugin and Deploy
      uses: serverless/[email protected]
      with:
        args: -c "serverless plugin install --name <plugin-name> && serverless deploy"
        entrypoint: /bin/sh

but it did not work either. (If I am understanding the workflow correctly, npm ci should install the plugin, and the error message is coming from the plugin, so I think it should work either way)

The error I am getting is:

Running "serverless" from node_modules

Deploying <service> to stage staging (eu-central-1, "<provider>" provider)

Generated requirements from /github/workspace/requirements.txt in /github/workspace/.serverless/requirements.txt
Installing requirements from "/github/home/.cache/serverless-python-requirements/f8090527365eda7859729a5727d2f20270cee426c486e19c25ce91c8df2a8a66_x86_64_slspyc/requirements.txt"
Using download cache directory /github/home/.cache/serverless-python-requirements/downloadCacheslspyc

× Stack <service>-staging failed to deploy (0s)
Environment: linux, node 16.16.0, framework 3.21.0 (local) 3.21.0v (global), plugin 6.2.2, SDK 4.3.2
Credentials: Serverless Dashboard, "<provider>" provider (https://app.serverless.com/<provider>)
Docs:        docs.serverless.com
Support:     forum.serverless.com
Bugs:        github.com/serverless/serverless/issues

Error:
Error: `python3.9 -m pip help install` Exited with code 1
    at ChildProcess.<anonymous> (/github/workspace/node_modules/child-process-ext/spawn.js:38:8)
    at ChildProcess.emit (node:events:527:28)
    at ChildProcess.emit (node:domain:475:12)
    at maybeClose (node:internal/child_process:1092:16)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:302:5)

I think the error occurs here, but I can't quite grasp why the plugin should not be able to access python?

Do you know how to fix this?

[AntonOellerer]

If I install serverless with npm and then run npm exec -c 'serverless deploy --stage ${{ github.ref_name }} --verbose' it works

[sergiors]

you need to use serverless/github-action@v3

[JoMingyu]

you need to use serverless/github-action@v3

this saved me

[walterholohan]

Thank you, anyone know why 3.1 does not work for python deployments?

[sergiors]

Thank you, anyone know why 3.1 does not work for python deployments?

The only reason that it could be is the node version, maybe python version

[jnicho02]

correct me if i'm wrong, but the 'with: args: ...serverless deploy' command will run inside serverless/github-action's Docker....3.1's Dockerfile is based on nikolaik/python-nodejs:python3.10-nodejs16-slim so when serverless tries to run python3.9 -m pip help install....then there won't be a python3.9, only a python3.10

and you can't use a python3.10 lambda profile as it doesn't exist yet https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html

[advissor]

Indeed, same happening for Python lambdas with v3.2 of this github action @jnicho02 points in right direction The Docker image, that is used and being built in the github actions uses Python 3.10 already for versions of Github actions above >3

 Step 1/11 : FROM nikolaik/python-nodejs:python3.10-nodejs18-slim
  python3.10-nodejs18-slim: Pulling from nikolaik/python-nodejs

Using serverless/github-action@v3 for Python 3.9 helped

      - name: Install Plugin and Deploy
        uses: serverless/github-action@v3
        with:
          args: -c "serverless plugin install --name serverless-python-requirements && serverless deploy"
          entrypoint: /bin/sh