feat(config): add --full flag and strip redundant upstream defaults (…

[stevensbkang]

…KS-49)

Introduce a --full mode flag (KUBESOLO_FULL env var) that disables edge-optimised overrides and uses upstream Kubernetes defaults for all component configurations. This enables running KubeSolo in CI/testing environments with standard Kubernetes behaviour.

Flag plumbing:

• Add Full flag to internal/config/flags with KUBESOLO_FULL env var
• Add FullMode to types.Embedded, wire through all 5 services
• Log active profile ("edge" or "full") at startup

Edge/full mode guards across all components:

• apiserver: etcd metrics, request throttling, timeouts, profiling, admission plugins, audit logging
• controller: profiling, GC threshold, sync concurrency, sync periods, API QPS/burst
• kubelet: profiling/debug handlers, frequencies, image GC, eviction thresholds, resource reservations, max pods
• kubeproxy: profiling, conntrack limits, sync period
• containerd: concurrent downloads, stats collection, GC scheduler

Remove flags and config values that duplicate upstream defaults:

• apiserver: secure-port, bind-address, enable-bootstrap-token-auth, etcd-compaction-interval, watch-cache, event-ttl, enable-garbage-collector
• controller: bind-address, secure-port, v, concurrent-daemonset-syncs, min-resync-period
• kubelet: enableServer, imageServiceEndpoint, registerNode, port, serializeImagePulls, registerWithTaints, imagePullProgressDeadline, RotateKubeletServerCertificate, imageGCLowThresholdPercent, registryPullQPS, registryBurst
• kubeproxy: iptables-masquerade-bit
• containerd: ~50 default-matching keys across CRI runtime, CRI images, grpc.v1.cri, overlayfs snapshotter, cgroup, and timeouts sections

[linear]

KS-49 kubesolo: `--full` flag support

[Copilot]

Pull request overview

Adds a “full” runtime profile to KubeSolo so CI/dev environments can run closer to upstream Kubernetes defaults, while keeping edge-optimized overrides as the default behavior.

Changes:

• Introduce --full / KUBESOLO_FULL flag and plumb FullMode through embedded config and services.
• Gate edge-optimized overrides behind !FullMode across apiserver/controller/kubelet/kube-proxy/containerd configs.
• Remove/stop setting multiple flags/config values that duplicate upstream defaults; refactor containerd config generation into smaller helpers.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
types/types.go	Adds FullMode to embedded runtime config for cross-service plumbing.
internal/config/flags/flags.go	Adds --full flag + KUBESOLO_FULL env var.
cmd/kubesolo/main.go	Wires flag into bootstrap embedded config; logs active profile; passes full mode into kube-proxy.
pkg/kubernetes/apiserver/service.go	Stores fullMode on apiserver service.
pkg/kubernetes/apiserver/flags.go	Applies edge-only apiserver overrides behind !fullMode; strips redundant defaults.
pkg/kubernetes/controller/service.go	Stores fullMode on controller-manager service.
pkg/kubernetes/controller/flags.go	Applies edge-only controller-manager overrides behind !fullMode; strips redundant defaults.
pkg/kubernetes/kubelet/service.go	Stores fullMode on kubelet service.
pkg/kubernetes/kubelet/config.go	Moves edge-specific kubelet settings behind !fullMode; strips redundant defaults.
pkg/kubernetes/kubeproxy/service.go	Extends constructor to accept fullMode.
pkg/kubernetes/kubeproxy/flags.go	Applies edge-only kube-proxy overrides behind !fullMode; strips redundant defaults.
pkg/runtime/containerd/service.go	Stores fullMode on containerd service.
pkg/runtime/containerd/config.go	Removes many default-matching keys; adds helper generators and gates edge-only settings behind !fullMode.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.