github k3d-io/k3d v4.1.0

latest releases: v5.7.4, v5.7.3, v5.7.2...
3 years ago

🆕 v4.1.0 🚀

Highlights

📜 Configuration Enhancements

  • 🐍 use viper for configuration management
    • takes over the job of properly fetching and merging config options from
      • CLI arguments/flags
      • environment variables
      • config file
    • this also fixes some issues with using the config file (like cobra defaults overriding config file values)
  • ✔️ add JSON-Schema validation for the Simple config file schema
  • 🆕 config version k3d.io/v1alpha2 (some naming changes)
    • exposeAPI -> kubeAPI
    • options.k3d.noRollback -> options.k3d.disableRollback
    • options.k3d.prepDisableHostIPInjection -> options.k3d.disableHostIPInjection

💻 Docker over SSH

Features & Enhancements

  • add root flag --timestamps to enable timestamped logs
  • improved multi-server cluster support (#467)
    • log a warning, if one tries to create a cluster with only 2 nodes (no majority possible, no fault tolerance)
    • revamped cluster start procedure: init-node, sorted servers, agents, helpers
    • different log messages per role and start-place (that we wait for to consider a node to be ready)
    • module: NodeStartOpts now accept a ReadyLogMessage and NodeState now takes a Started timestamp string

Fixes

  • do not ignore --no-hostip flag and don't inject hostip if --network=host (#471, @konradmalik)
  • fix: --no-lb ignored
  • fix: print error cause when serverlb fails to start

Misc

  • tests/e2e: add config override test
  • tests/e2e: add multi server start-stop cycle test
  • tests/e2e: improved logs with stage and test details.
  • builds&tests: use Docker 20.10 and BuildKit everywhere
  • 📝 docs: add https://github.com/AbsaOSS/k3d-action (GitHub Action) as a related project (#476, @kuritka)

Tested with

  • E2E Tests ran with k3s versions
    • v1.17.17-k3s1 (see Known Issues below)
    • v1.18.15-k3s1 (see Known Issues below)
    • v1.19.7-k3s1
    • v1.20.2-k3s1

Known Issues

  • automatic multi-server cluster restarts tend to fail with k3s versions v1.17.x & v1.18.x and probably earlier versions (using dqlite)
  • Using Viper brings us lots of nice features, but also one problem:
    • We had to switch StringArray flags to StringSlice flags, which
      • allow to use multiple flag values comma-separated in a single flag, but also
      • split flag values that contain a comma into separate parts (and we cannot handle issues that arise due to this)
        • so if you rely on commas in your flag values (e.g. for --env X=a,b,c), please consider filing an issue or supporting spf13/viper#246 and spf13/viper#398
        • --env X=a,b,c would be treated the same as --env X=a, --env b, --env c

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