Waypoint Helm does not support private chart repository

[shbalaku]

Describe the bug
Attempted using waypoint helm plugin to deploy a chart but seeing error:

! failed to get latest artifact

Likely due to inability to fetch from the private chart repository specified.

Steps to Reproduce
waypoint.hcl file:

project = "waypoint-test"

app "test-app" {
  build {}

  deploy {
    use "helm" {
        name  = "test-app"
        chart = "<private-chart-repo-url>"
        version = "0.1.0"
    }
  }
}

Expected behavior
Expected better error and troubleshooting on how to connect to private chart repo using the helm plugin. Could not find documentation of how to do this.

Waypoint Platform Versions
Additional version and platform information to help triage the issue if
applicable:

• Waypoint CLI Version: v0.11.2 (0759b76)
• Waypoint Server Platform and Version: kubernetes
• Waypoint Plugin: helm

Additional context
Add any other context about the problem here.

[paladin-devops]

Hey @shbalaku, thanks for opening this issue! This still requires testing, but I have a draft PR to add options for a username and password to the Helm plugin's platform component, to support authenticating to a private repository.