rubik: optimize cgroup · Pull Request !223 · openEuler/rubik

### 描述
rubik: optimize cgroup
### 关联issue
1. add comment
2. reconstruct cgroup
### 修改类型
-  代码重构
### 验证报告
systemd驱动：
```bash
2024-09-12 02:15:56.808 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() agent run with config:
{
  "agent": {
    "cgroupDriver": "cgroupfs",
    "cgroupRoot": "/sys/fs/cgroup",
    "enabledFeatures": [
      "preemption"
    ],
    "informerType": "apiserver",
    "logDir": "/var/log/rubik",
    "logDriver": "file",
    "logLevel": "info",
    "logSize": 1024
  },
  "preemption": {
    "resource": [
      "cpu"
    ]
  }
}
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-flannel-ds-75kfd(d4cc64c1-cad9-4a54-a0d2-27ac84f9a690) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod coredns-76f75df574-7d984(6d11f767-9b02-402c-ae8b-b9dbae7ad054) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod coredns-76f75df574-qvtb4(572f73d0-9072-425f-973e-018b1f781d6c) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod etcd-openeuler(0907e339-e874-41bd-8607-31051ab1b28f) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-apiserver-openeuler(6c5ef826-84d8-4eac-a420-b3c1b662a07e) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-controller-manager-openeuler(2431f61e-7609-4105-9d2f-9697d72bd482) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-proxy-r7ndn(b9fd4900-650d-4323-a629-dbf002544747) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-scheduler-openeuler(6c91f8a8-9185-4004-8d2e-001c679d628a) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() service preemption pre-start successfully
2024-09-12 02:15:57.667 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod rubik-agent-hh2gb(9e2ee609-d40a-4a46-a696-b807ade7276b) has already been set to online(0)
```
cgroup驱动：
```bash
2024-09-12 02:15:56.808 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() agent run with config:
{
  "agent": {
    "cgroupDriver": "cgroupfs",
    "cgroupRoot": "/sys/fs/cgroup",
    "enabledFeatures": [
      "preemption"
    ],
    "informerType": "apiserver",
    "logDir": "/var/log/rubik",
    "logDriver": "file",
    "logLevel": "info",
    "logSize": 1024
  },
  "preemption": {
    "resource": [
      "cpu"
    ]
  }
}
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-flannel-ds-75kfd(d4cc64c1-cad9-4a54-a0d2-27ac84f9a690) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod coredns-76f75df574-7d984(6d11f767-9b02-402c-ae8b-b9dbae7ad054) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod coredns-76f75df574-qvtb4(572f73d0-9072-425f-973e-018b1f781d6c) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod etcd-openeuler(0907e339-e874-41bd-8607-31051ab1b28f) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-apiserver-openeuler(6c5ef826-84d8-4eac-a420-b3c1b662a07e) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-controller-manager-openeuler(2431f61e-7609-4105-9d2f-9697d72bd482) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-proxy-r7ndn(b9fd4900-650d-4323-a629-dbf002544747) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod kube-scheduler-openeuler(6c91f8a8-9185-4004-8d2e-001c679d628a) has already been set to online(0)
2024-09-12 02:15:56.831 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() service preemption pre-start successfully
2024-09-12 02:15:57.667 [rubik] level=info /root/workSpace/repos/gitee/rubik/pkg/common/log/log.go:241:Infof() pod rubik-agent-hh2gb(9e2ee609-d40a-4a46-a696-b807ade7276b) has already been set to online(0)
```

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