klio_core.exceptions.KlioConfigTemplatingException thrown for `klio` subcommands when templated values are used

[fallonchen]

Environment

• klio* version(s): latest release candidates (klio-*==21.2.0rc1) and latest from master (klio-exec==0.2.2, klio-cli==1.0.5, klio-core==0.2.2)
• Operating System(s): OSX
• Python version(s) (python -V): 3.6.9
• Docker version (if relevant) (docker --version):

Description of the bug

When templated values are used in klio-job.yaml, klio subcommands also need the templated value to be passed in (e.g. you need to run klio message publish --template templated_value=MYVALUE) . Otherwise, a KlioConfigTemplatingException is thrown.

What you expected to happen

I expect the non-run subcommands to run correctly without the templated values being explicitly passed in.

How to reproduce (as minimally and precisely as possible)

Create a klio job: klio job create --use-fnapi --use-defaults --job-type streaming
Add a templated value to your klio-job.yaml:

<!--snip-->
job_config:
  api_key: ${templated_key}
<!--snip-->

Run any klio subcommand that isn't klio job run: klio message publish, klio job create, klio job verify, etc

You should then see a stacktrace like this:

(klio-current) ➜  klio-template-bug-fnapi git:(master) ✗ klio job verify --create-resources                             
Traceback (most recent call last):
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/klio_core/config/_preprocessing.py", line 159, in _apply_templates
    return template.substitute(**templates)
  File "/Users/fallon/.pyenv/versions/3.6.9/lib/python3.6/string.py", line 130, in substitute
    return self.pattern.sub(convert, self.template)
  File "/Users/fallon/.pyenv/versions/3.6.9/lib/python3.6/string.py", line 123, in convert
    return str(mapping[named])
KeyError: 'templated_value'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/fallon/.pyenv/versions/klio-current/bin/klio", line 11, in <module>
    sys.exit(main())
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/klio_core/utils.py", line 228, in wrapper
    raw_overrides=raw_overrides,
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/klio_core/config/core.py", line 101, in __init__
    raw_override_list=raw_overrides or [],
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/klio_core/config/_preprocessing.py", line 241, in process
    raw_config_data, template_dict
  File "/Users/fallon/.pyenv/versions/3.6.9/envs/klio-current/lib/python3.6/site-packages/klio_core/config/_preprocessing.py", line 161, in _apply_templates
    raise exceptions.KlioConfigTemplatingException(e)
klio_core.exceptions.KlioConfigTemplatingException: 'templated_value' missing in key template overrides.

Anthing else we need to know?