Add kube command

[ellbristow]

New invoke command to handle kubectl commands so we don't need to keep referring to the cheatsheet

It will read the customers namespace from a .glo.yaml file in the project root, or, if one doesn't exist, you can provide one using '-n {namespace}' and it will create the .glo..yaml for you. If you provide a new namespace, it will be added to a list that you can choose from next time you run the command. You can use invoke kube removens -n {namespace} to remove one you added by mistake, or is no longer valid.

Example Commands:
invoke kube shell -n dw -d dw will create a .glo.yaml file containing the namespace dw, if it doesn't exist, then connect to their shell, connected to the dw database. -n and -d are optional where a .glo.yaml file already exists.

invoke kube shell will connect to the namespace stored in .glo.yaml and the default database. If multiple namespaces exist in .glo.yaml you will be asked to pick one.

Associated risk level low

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update