Kraken Versions Save

Features:

• Added a /preload/tags/{tag} endpoint on kraken-agent to trigger docker pull on docker daemon.
• Added support for self-hosted S3/minio.

Improvements:

• Refactored interfaces to allow kraken components to be used as libraries.
• Switched from glide to go mod for dependency management.
• Made Helm chart more portable
• Migrated from debian:9 to debian:10 for testing.
• Migrated from Go 1.11 to Go 1.14.
• Refactored authentication logic so auth tokens can be cached.
• Added timeout and disabled HTTP fallback for registry backend.

Next release: Focus on improving push performance and disk space management.

Notable Features:

• Add doc for integration with harbor (#193)
• Support preheat when using registry as backend (#147)
• Add GCS support (#180, #184)
• Add ECR support (#194, #203)
• Support for pagination in list and catalog APIs (#183, #190, #197, #201)
• Support allowed-cidrs in agent configuration (#188)
• Add agent endpoint for resolving tags (#149)

Bug fixes:

• Added tracker monitor chan (#196)
• Collapse pending/active/capacity maps in connstate.State (#173)
• Add skipped announces back to queue (#167)
• OpenedByRemote should be false for local (#163)
• Remove writing into redundant cache in build-index (#155)

This release does not contain any breaking changes. The following small fixes were added:

• Enable gzip only for origin, proxy and agent
• Fix potential download timeout caused by stuck connections
• Include original https error on http fallback failures
• Add optional exponential backoff to httpbackend download
• Remove over verbose log statement
• Other code quality improvements

A Helm chart was added to provide a simple example of how to run Kraken on Kubernetes.

• Switched to vgo for dependency management.
• Refactored config package, allow configs to use absolute paths in their extends.
• Fixed Go 1.12 compatibility issues, minor bugs in tests, and nginx configs.

This is the first release of Kraken.