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Add a resource specifying number of Pods that are allowed to run on Kubelet.

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This commit is contained in:
gmarek
2015-03-17 15:43:49 +01:00
parent f57f317830
commit 27d660d0ac
9 changed files with 109 additions and 21 deletions
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8
cmd/kubelet/app/server.go
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@@ -108,6 +108,7 @@ type KubeletServer struct {
ContainerRuntime string
DockerDaemonContainer string
ConfigureCBR0 bool
MaxPods int
// Flags intended for testing
@@ -226,6 +227,7 @@ func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.ContainerRuntime, "container_runtime", s.ContainerRuntime, "The container runtime to use. Possible values: 'docker', 'rkt'. Default: 'docker'.")
fs.StringVar(&s.DockerDaemonContainer, "docker-daemon-container", s.DockerDaemonContainer, "Optional resource-only container in which to place the Docker Daemon. Empty for no container (Default: /docker-daemon).")
fs.BoolVar(&s.ConfigureCBR0, "configure-cbr0", s.ConfigureCBR0, "If true, kubelet will configure cbr0 based on Node.Spec.PodCIDR.")
fs.IntVar(&s.MaxPods, "max_pods", 100, "Number of Pods that can run on this Kubelet.")
// Flags intended for testing, not recommended used in production environments.
fs.BoolVar(&s.ReallyCrashForTesting, "really-crash-for-testing", s.ReallyCrashForTesting, "If true, when panics occur crash. Intended for testing.")
@@ -342,6 +344,7 @@ func (s *KubeletServer) Run(_ []string) error {
Mounter: mounter,
DockerDaemonContainer: s.DockerDaemonContainer,
ConfigureCBR0: s.ConfigureCBR0,
MaxPods: s.MaxPods,
}
RunKubelet(&kcfg, nil)
@@ -500,6 +503,7 @@ func SimpleKubelet(client *client.Client,
ContainerRuntime: "docker",
Mounter: mount.New(),
DockerDaemonContainer: "/docker-daemon",
MaxPods: 32,
}
return &kcfg
}
@@ -633,6 +637,7 @@ type KubeletConfig struct {
Mounter mount.Interface
DockerDaemonContainer string
ConfigureCBR0 bool
MaxPods int
}
func createAndInitKubelet(kc *KubeletConfig) (k KubeletBootstrap, pc *config.PodConfig, err error) {
@@ -683,7 +688,8 @@ func createAndInitKubelet(kc *KubeletConfig) (k KubeletBootstrap, pc *config.Pod
kc.ContainerRuntime,
kc.Mounter,
kc.DockerDaemonContainer,
kc.ConfigureCBR0)
kc.ConfigureCBR0,
kc.MaxPods)
if err != nil {
return nil, nil, err