kube-scheduler最佳配置

version: kubernetes 1.6.2

kube-scheduler Configuration

下面是我梳理的kube-scheduler的完成配置：

flag default value comments –address string 0.0.0.0 The IP address to serve on (set to 0.0.0.0 for all interfaces) (default “0.0.0.0”) –algorithm-provider string DefaultProvider The scheduling algorithm provider to use, one of: DefaultProvider –failure-domains string kubernetes.io/hostname,
failure-domain.beta.kubernetes.io/zone,
failure-domain.beta.kubernetes.io/region Indicate the “all topologies” set for an empty topologyKey when it’s used for PreferredDuringScheduling pod anti-affinity. (default “kubernetes.io/hostname,failure-domain.beta.kubernetes.io/zone,failure-domain.beta.kubernetes.io/region”) –feature-gates value A set of key=value pairs that describe feature gates for alpha/experimental features. Options are:
AllAlpha=true –google-json-key string The Google Cloud Platform Service Account JSON Key to use for authentication. –hard-pod-affinity-symmetric-weight int 1 RequiredDuringScheduling affinity is not symmetric, but there is an implicit PreferredDuringScheduling affinity rule corresponding to every RequiredDuringScheduling affinity rule. –hard-pod-affinity-symmetric-weight represents the weight of implicit PreferredDuringScheduling affinity rule. (default 1) –kube-api-burst value 100 Burst to use while talking with kubernetes apiserver (default 100) –kube-api-content-type string application/vnd.kubernetes.protobuf Content type of requests sent to apiserver. (default “application/vnd.kubernetes.protobuf”) –kube-api-qps value 50 QPS to use while talking with kubernetes apiserver (default 50) –kubeconfig string Path to kubeconfig file with authorization and master location information. –leader-elect true Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability. (default true) –leader-elect-lease-duration duration 15s The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is replaced by another candidate. This is only applicable if leader election is enabled. (default 15s) –leader-elect-renew-deadline duration 10s The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than or equal to the lease duration. This is only applicable if leader election is enabled. (default 10s) –leader-elect-retry-period duration 2s The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. (default 2s) –master string The address of the Kubernetes API server (overrides any value in kubeconfig) –policy-config-file string File with scheduler policy configuration –port value 10251 The port that the scheduler’s http service runs on (default 10251) –profiling true Enable profiling via web interface host:port/debug/pprof/ (default true) –scheduler-name string default-scheduler Name of the scheduler, used to select which pods will be processed by this scheduler, based on pod’s annotation with key ‘scheduler.alpha.kubernetes.io/name’ (default “default-scheduler”)

kube-scheduler Configuration Best Practices

下面是我梳理的，个人认为必须关注的配置：

flag default value comments –address string 0.0.0.0 The IP address to serve on (set to 0.0.0.0 for all interfaces) (default “0.0.0.0”) –kubeconfig string Path to kubeconfig file with authorization and master location information. –master string The address of the Kubernetes API server (overrides any value in kubeconfig) –policy-config-file string File with scheduler policy configuration –port value 10251 The port that the scheduler’s http service runs on (default 10251) –profiling true Enable profiling via web interface host:port/debug/pprof/ (default true)