helm-controller/

Flux Helm Controller - Third Party Code

This directory contains code copied from the Flux helm-controller project.

Source

• Repository: https://github.com/fluxcd/helm-controller
• License: Apache License 2.0
• Files copied from: internal/loader/

Copied Files

loader/loader.go

Contains:

• SecureLoadChartFromURL() - Downloads a Helm chart from a URL and verifies its digest
• NewRetryableHTTPClient() - Creates an HTTP client with retry logic
• copyAndVerify() - Helper for copying and verifying data against a digest
• overwriteHostname() - Helper for overwriting URL hostnames (for localhost access)

Why Copied

The loader package is in internal/ and cannot be imported as a Go module dependency. We need SecureLoadChartFromURL() to load Helm charts from source controller artifacts exactly as Flux does, including digest verification.

Modifications

The code has been adapted to:

• Use the loader package name
• Remove controller-runtime logger dependency in favor of a simpler approach
• Combine artifact_url.go and client.go into a single file

Updates

When updating, check the original files at:

• https://github.com/fluxcd/helm-controller/blob/main/internal/loader/artifact_url.go
• https://github.com/fluxcd/helm-controller/blob/main/internal/loader/client.go