[BUG] cdk8s init throws error on missing prerequisites

[ankitmahapatra22]

Describe the bug cdk8s init typescript-app throws file already exists error. OS : Windows 8.1 Node version : 10.11.0

To Reproduce cdk8s init typescript-app

Expected behavior New project should have been created.

Additional context Getting started using https://github.com/awslabs/cdk8s/blob/master/docs/getting-started/typescript.md

[stanleynguyen]

It looks like you were trying to init hello/ and the folder already existed (which explains the OS error)

[jmmars]

No.

(base) ➜ cdk8s git:(master) ✗ cd hello (base) ➜ hello git:(master) ✗ cdk8s init python-app Initializing a project from the python-app template cdk8s init TYPE

Create a new cdk8s project from a template.

Positionals: TYPE Project type [required] [choices: "python-app", "typescript-app"]

Options: --version Show version number [boolean] --help Show help [boolean] --dist Install dependencies from a "dist" directory (for development) [string] --cdk8s-version The cdk8s version to use when creating the new project [string] [default: "0.21.0"]

TypeError: Cannot read property 'mkdir' of undefined at Object.sscaff (/Users/xyz/.npm-global/lib/node_modules/cdk8s-cli/node_modules/sscaff/lib/sscaff.js:18:25) at Object.handler (/Users/xyz/.npm-global/lib/node_modules/cdk8s-cli/bin/cmds/init.js:29:24) at at process._tickCallback (internal/process/next_tick.js:188:7) at Function.Module.runMain (module.js:686:11) at startup (bootstrap_node.js:187:16) at bootstrap_node.js:608:3

This is exactly as described by the docs. To me, there's something wrong w/ init.

[campionfellin]

Hey, could you try with Node 12?

[jmmars]

heh ... hold on..

(base) ➜  hello git:(master) ✗ node --version
v12.16.3
(base) ➜  hello git:(master) ✗ cdk8s init python-app
Initializing a project from the python-app template
Unable to find "pipenv". Install from https://pipenv.kennethreitz.org

I guess need to make sure pipenv is installed?

[jmmars]

So, the solution (update the docs maybe unless I missed these two things in there... ) is to use some version of node >= 12.x (I was using v8.9.4) and to install pipenv (brew install pipenv). So, I take it back, guess my node was crusty.

[eladb]

So, the solution (update the docs maybe unless I missed these two things in there... ) is to use some version of node >= 12.x (I was using v8.9.4) and to install pipenv (brew install pipenv). So, I take it back, guess my node was crusty.

can you submit a PR for doc update?

[ankitmahapatra22]

Thank you, upgrading the Node version to LTS 12.16.3 helped create the typescript-app templated project successfully. Next I went on to init using python-app template. Similar to @jmmars , I encountered the pipenv installation message. Went on to install pipenv - pip install --user pipenv Followed it up with cdk8s init python-app in a new folder name hello_python Received the error as seen in below screenshot

Read somewhere that which keyword is not supported in Windows. Switched to using git bash instead.

It failed at the import part cdk8s import k8s -l python

Realized it maybe a permission issue , so ran git bash in Administrator mode and now it seems jsii bin folder is missing within cdk8s-cli node_modules folder

[jmmars]

can you submit a PR for doc update?

I'll see if I can patch this getting-started/python.md this weekend after looking over your contrib guide. Basically, it just needs to be clearer on prereqs.

Looking forward: At some point, for some systems might be able to do a more programmatic check to make sure base reqs will enable an easy install.

[eladb]

Is this still relevant? Closing for now.