Allow Runner Git configuration to access environment/dynamic values

[arbourd]

Is your feature request related to a problem? Please describe.

I'd rather configure git data sources and their keys with either an environmental variable or with the the dynamic function. Having to call a script that does waypoint project apply -git-private-key-path="" is less fun.

Describe the solution you'd like

Here is an example of using the dynamic block to pull the private key from the Kubernetes secret.

runner {
  enabled = true

  data_source "git" {
    url  = "git@github.com:example/repo.git"
    path = "waypoint"
    key = dynamic("kubernetes", {
      name   = "git"
      key    = "identity"
      secret = true
    })
  }
}

Describe alternatives you've considered

I use the command line.

Explain any additional use-cases

For GitOps, I want everything configured in a file. Right now we're using a CronJob in Kubernetes to update projects/keys. Not so sexy.

[paladin-devops]

Hey @arbourd! The data source is used when the project is first "init-ed", not continuously through the lifecycle of the project. We will look into ways to retrieve the value here earlier in the project operations!