毎回調べるのが面倒なので、よく使用するk8sのリソースのデフォルト値を表にまとめました。
今回の対象リソースは以下3種類で、k8sの基本中の基本のリソースです。
- Service
- Deployment
- Pod
以下の表はすべてオブジェクトの spec 配下の設定のデフォルト値です。
Service
| 設定項目 | デフォルト値 | ||||
|---|---|---|---|---|---|
| ports | protocol | TCP | |||
| type | ClusterIP | ||||
| sessionAffinity | None | ||||
| externalTrafficPolicy | Cluster | ||||
| internalTrafficPolicy | Cluster | ||||
| sessionAffinityConfig | clientIP | timeoutSeconds | 10800 | ||
| allocateLoadBalancerNodePorts | true | ||||
参照：
- https://kubernetes.io/docs/concepts/services-networking/service/
- https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/
Deployment
| 設定項目 | デフォルト値 | ||||
|---|---|---|---|---|---|
| replicas | 1 | ||||
| minReadySeconds | 0 | ||||
| strategy | type | RollingUpdate | |||
| rollingUpdate | maxSurge | 25% | |||
| maxUnavailable | 25% | ||||
| revisionHistoryLimit | 10 | ||||
| progressDeadlineSeconds | 600 | ||||
| paused | false | ||||
参照：
- https://kubernetes.io/docs/concepts/workloads/controllers/deployment/
- https://kubernetes.io/docs/reference/kubernetes-api/workload-resources/deployment-v1/
Pod
| 設定項目 | デフォルト値 | ||||
|---|---|---|---|---|---|
| enableServiceLinks | true | ||||
| tolerations | operator | Equal | |||
| preemptionPolicy | PreemptLowerPriority | ||||
| topologySpreadConstraints | maxSkew | 1 | |||
| whenUnsatisfiable | DoNotSchedule | ||||
| restartPolicy | Always | ||||
| terminationGracePeriodSeconds | 30 | ||||
| setdostnameAsFQDN | false | ||||
| dnsPolicy | ClusterFirst | ||||
| hostNetwork | false | ||||
| hostPID | false | ||||
| hostIPC | false | ||||
| shareProcessNamespace | false | ||||
| securityContext | (empty) | ||||
| hostUsers | true | ||||
| containers / initContainers / ephemeralContainers |
imagePullPolicy | Always | |||
| ports | protocol | TCP | |||
| volumeMounts | mountPropagation | None | |||
| readOnly | false | ||||
| recursiveReadOnly | None | ||||
| subPatd | "" (volume's root) | ||||
| subPatdExpr | "" (volume's root) | ||||
| resources | resizePolicy[] | restartPolicy | NotRequired | ||
| terminationMessagePatd | /dev/termination-log | ||||
| terminationMessagePolicy | File | ||||
| securityContext | procMount | Default | |||
| privileged | false | ||||
| readOnlyRootFilesystem | false | ||||
| stdin | false | ||||
| stdinOnce | false | ||||
| tty | false | ||||
| lifecycle | postStart / preStop |
httpGet | scheme | HTTP | |
| livenessProbe / readinessProbe / startupProbe |
httpGet | scheme | HTTP | ||
| periodSeconds | 10 | ||||
| timeoutSeconds | 1 | ||||
| failuretdreshold | 3 | ||||
| successtdreshold | 1 | ||||
参照：
