Pkger support multiple pkg import

[jsteenb2]

As a user, I want to provide multiple pages for inserting, so that I can create resources and maintain my sanity when my pkgs get very large.

I can see something like:

my_pkgs_dir/
  - labels.yml
  - buckets.yml

AC

• should be able to reference associations in other files
• errors should include which pkg had the issue and where in it the issue happened specifically
• should support a directory structure
• shoudl be supported via the CLI like following:

influx pkg -f labels.yml -f buckets.yml -f endpoints.yml -f telegrafs.yml

# should see that it is a directory and then run all pkgs
influx pkg -f my_pkg_dirs

Use case:
This would help provide easier organization of pkgs and easier composition of pkgs together and have them all be part of the same application/dry run.

Acceptance criteria

• support multiple file uploads via cli
• support dir upload via cli
• support multiple url upload svia cli
• support multiple pkgs via HTTP API
• support multiple urls via HTTP API
• both cli and HTTP API should support both urls and pkgs together

[russorat]

awesome! could we have the cli work like kubectl apply -f <directory>? https://kubernetes.io/docs/reference/kubectl/overview/#examples-common-operations

[jsteenb2]

sure @russorat add it to the AC 👍 donezo