Early failure for deploying an application with a function to an env

[dianadoherty]

Description of change

Early failure for deploying an application with a function to an env

Fixes #620

Type of change

• New feature
• Bug fix
• Refactor
• Documentation

How was this tested?

• Unit Tests
• Tested in staging
• Tested in minikube

Demo

Before

meroxa apps deploy --env aws     
Validating your app.json...
	✔ Checked your language is "ruby"
	✔ Checked your application name is "test-rb"
Checking for uncommitted changes...
	✔ No uncommitted changes!
Preparing to deploy application "test-rb"...
	✔ Can access your Turbine resources
	✔ Application processes found. Creating application image...
	✔ Platform source fetched
	✔ Dockerfile created
	✔ "turbine-test-rb.tar.gz" successfully created in "/Users/dianadoherty/go/src/meroxa/test-rb"
	✔ Source uploaded
	✔ Removed "turbine-test-rb.tar.gz"
	✔ Dockerfile removed
	✔ Successfully built process image ("e8d91f4d-8a14-49a8-8213-3fb39d3fc370")
⠏ Deploying application "test-rb"...
	successfully validated application pipeline
	successfully created source connector
	cannot deploy functions to an environment
	x Couldn't complete the deployment
Error: 
 Check `meroxa apps logs` for further information

After

meroxa apps deploy --env aws
Validating your app.json...
	✔ Checked your language is "ruby"
	✔ Checked your application name is "test-rb"
Checking for uncommitted changes...
	✔ No uncommitted changes!
Preparing to deploy application "test-rb"...
	✔ Can access your Turbine resources
	x 	
Error: cannot deploy an application with a functions to an environment

[raulb]

@dianadoherty nicely done.

[janelletavares]

sorry i didn't review sooner. just noticed that functions is plural here with a singular article. could it be "one or more functions" so it doesn't have to be rewritten when we support more?

[dianadoherty]

Nice catch! I think for now it's best to only mention one function, so I've went ahead and switched functions to singular function #627