…fix imports

Replace manual temp-file + kubectl apply in _deploy_daemonset() with
PKB's kubernetes_commands.ApplyManifest():

- Remove _daemonset_yaml() helper
- _deploy_daemonset() delegates to kubernetes_commands.ApplyManifest(
    'cluster/swap_encryption_daemonset.yaml.j2', **kwargs)
- Add kubernetes_commands import; remove vm_util import (now unused)
- Fix import order: providers.gcp before resources.container_service

… remove cgroup hack

Address Ajay review comments on PR GoogleCloudPlatform#6776:

Comment #r3457877984 (linuxConfig.swapConfig):
Extend --system-config-from-file YAML with linuxConfig blocks:
  linuxConfig.swapConfig.enabled: true -- GKE sets up node-level swap
  dedicatedLocalSsdProfile.diskCount: N -- LSSD: use local NVMe for swap
  linuxConfig.sysctl: vm.swappiness=100, vm.min_free_kbytes=200,
    vm.watermark_scale_factor=500
Ref: https://cloud.google.com/kubernetes-engine/docs/how-to/node-memory-swap

Comment #r3457928855 (cgroup hack):
Remove memory.swap.max=max loop from swap_encryption_daemonset.yaml.j2.
With kubeletConfig.memorySwapBehavior=LimitedSwap the kubelet manages
per-container swap allocation; the cgroup hack is unnecessary.

…5); manifest moved to data/cluster and rendered via vm_util

…ared-infra_new

Per Ajay's review comment on PR GoogleCloudPlatform#6758:
- Add _GKE_KUBELET_MEMORY_SWAP flag (default LimitedSwap) so the
  benchmark nodepool is created with kubeletConfig.memorySwapBehavior
  set via --system-config-from-file, enabling pod-level swap usage.
- Wrap gcloud IssueCommand in try/finally to clean up the temp YAML.
- Update nodepool creation log to include kubelet_swap value.

- Add SwapDaemonSet(resource.BaseResource) in resources/container_service/swap_daemonset.py
  - _Create(): apply Jinja2 manifest + wait for Running + /tmp/pkb_ready
  - _Delete(): in-pod swapoff/dmsetup/losetup/pkill teardown; kubectl delete
  - PodExec(): transient-reset retry, rc=137 OOM detection, pod recovery
- Add SwapNodePool(resource.BaseResource) in resources/container_service/swap_nodepool.py
  - _Create(): gcloud node-pools create with linuxConfig.swapConfig + optional swap disk
  - _Delete(): detach+delete disk; delete nodepool
  - DeleteDefaultPool(): remove dummy e2-medium pool after DaemonSet pod Running
- Rewrite benchmark to thin pattern: Prepare() uses resource.Create() + spec.resources
  - Cleanup() is empty - PKB framework auto-deletes spec.resources
  - Run() uses daemonset.PodExec() throughout
- Addresses Zac review: resources pattern, no infra code in benchmark file
- Fix COS_CONTAINERD -> UBUNTU_CONTAINERD (r3472549985)
- swapConfig auto-enables memorySwapBehavior=LimitedSwap (r3472513706)

… NodepoolSpec field

BREAKING: replaces SwapNodePool (standalone nodepool lifecycle) with the
correct PKB pattern: swap configuration declared in BENCHMARK_CONFIG and
applied by the existing GKE cluster creation flow.

New files:
- resources/container_service/swap_config.py
  - GkeSwapConfig(BaseResource): WriteLinuxConfigYaml(), ValidHyperdiskThroughput()
  - EksSwapConfig(BaseResource): stub for nodeadm config (deferred to PR GoogleCloudPlatform#6780)

Core framework changes:
- configs/container_spec.py: add SwapConfigSpec(BaseSpec) + _SwapConfigDecoder
  + swap_config field on NodepoolSpec
- resources/container_service/container.py: add swap_config attr to BaseNodePoolConfig
- resources/container_service/container_cluster.py: propagate swap_config in
  _InitializeNodePool() (mirrors sandbox_config pattern)
- providers/gcp/google_kubernetes_engine.py: _AddNodeParamsToCmd() reads
  nodepool_config.swap_config - applies --system-config-from-file,
  UBUNTU_CONTAINERD, --no-enable-autorepair, boot-disk-provisioned-iops/throughput

Thin benchmark:
- BENCHMARK_CONFIG declares benchmark nodepool with swap_config (no separate
  nodepool create needed - GKE cluster creation handles it)
- Prepare(): deploy SwapDaemonSet + delete default-pool
- Run(): verify swap_active + swap_encrypted; report samples
- Cleanup(): empty (PKB auto-deletes spec.resources)

Addresses Ajay reviews:
- r3457826290: swap as base resource plugged into GKE cluster creation flow
- r3457877984: linuxConfig.swapConfig via --system-config-from-file (GkeSwapConfig)
- r3457928855: removed memory.swap.max hack
- r3457964593: UBUNTU_CONTAINERD set per-nodepool in _AddNodeParamsToCmd
- r3472513706: swapConfig auto-enables memorySwapBehavior=LimitedSwap
- r3472549985: UBUNTU_CONTAINERD required for dm-crypt

… NodepoolSpec field

BREAKING: replaces SwapNodePool (standalone nodepool lifecycle) with the
correct PKB pattern: swap configuration declared in BENCHMARK_CONFIG and
applied by the existing GKE cluster creation flow.

New files:
- resources/container_service/swap_config.py
  - GkeSwapConfig(BaseResource): WriteLinuxConfigYaml(), ValidHyperdiskThroughput()
  - EksSwapConfig(BaseResource): stub for nodeadm config (deferred to PR GoogleCloudPlatform#6780)

Core framework changes:
- configs/container_spec.py: add SwapConfigSpec(BaseSpec) + _SwapConfigDecoder
  + swap_config field on NodepoolSpec
- resources/container_service/container.py: add swap_config attr to BaseNodePoolConfig
- resources/container_service/container_cluster.py: propagate swap_config in
  _InitializeNodePool() (mirrors sandbox_config pattern)
- providers/gcp/google_kubernetes_engine.py: _AddNodeParamsToCmd() reads
  nodepool_config.swap_config - applies --system-config-from-file,
  UBUNTU_CONTAINERD, --no-enable-autorepair, boot-disk-provisioned-iops/throughput

Thin benchmark:
- BENCHMARK_CONFIG declares benchmark nodepool with swap_config (no separate
  nodepool create needed - GKE cluster creation handles it)
- Prepare(): deploy SwapDaemonSet + delete default-pool
- Run(): verify swap_active + swap_encrypted; report samples
- Cleanup(): empty (PKB auto-deletes spec.resources)

Addresses Ajay reviews:
- r3457826290: swap as base resource plugged into GKE cluster creation flow
- r3457877984: linuxConfig.swapConfig via --system-config-from-file (GkeSwapConfig)
- r3457928855: removed memory.swap.max hack
- r3457964593: UBUNTU_CONTAINERD set per-nodepool in _AddNodeParamsToCmd
- r3472513706: swapConfig auto-enables memorySwapBehavior=LimitedSwap
- r3472549985: UBUNTU_CONTAINERD required for dm-crypt

GkeSwapConfig and EksSwapConfig now both inherit from BaseSwapConfig(BaseResource).
Common sysctl attrs (swappiness, min_free_kbytes, watermark_scale_factor) live in
the base class. Cloud-specific attrs remain in each subclass.

Addresses Zac review: GkeSwapConfig & EksSwapConfig should inherit from BaseSwapConfig.

…EksSwapConfig and GKE wiring

…etries arg, suppress invalid-name on from_spec base class definition

…GKE with swap support (Phase 3c)

…ase 3c swap support