k8s1.6镜像下载及k8组件
centos docker pull 1.6版本镜像方法:先配置hosts,使centos可以访问google.
之后docker pull下k8s 1.6相关镜像:
docker pull gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
docker pull gcr.io/google_containers/kube-controller-manager-amd64:v1.6.0
docker pull gcr.io/google_containers/kube-proxy-amd64:v1.6.0
docker pull gcr.io/google_containers/kube-scheduler-amd64:v1.6.0
docker pull gcr.io/google_containers/kubernetes-dashboard-amd64:v1.6.0
导出镜像
mkdir /images/k8s_v1.6 && cd/images/k8s_v1.6
docker save -o gcr.io_google_containers_kube-proxy-amd64_v1.6.0.tar.gz gcr.io/google_containers/kube-proxy-amd64:v1.6.0
docker save -o gcr.io_google_containers_kube-apiserver-amd64_v1.6.0.tar.gz gcr.io/google_containers/kube-apiserver-amd64:v1.6.0
docker save -o gcr.io_google_containers_kube-controller-manager-amd64_v1.6.0.tar.gz gcr.io/google_containers/kube-controller-manager-amd64:v1.6.0
docker save -o gcr.io_google_containers_kube-scheduler-amd64_v1.6.0.tar.gz gcr.io/google_containers/kube-scheduler-amd64:v1.6.0
docker save -o gcr.io_google_containers_kubernetes-dashboard-amd64_v1.6.0.tar.gz gcr.io/google_containers/kubernetes-dashboard-amd64:v1.6.0
k8s组件架构:
十分钟带你理解Kubernetes核心概念
master端:
kube-apiserver-amd64
kube-controller-manager-amd64
kube-scheduler-amd64
node端:
kube-proxy-amd64
kubelet
kubelet组件作用:工作在k8s的minion上，负责管理和维护在这台主机上运行着的所有容器。
· kubelet与cAdvisor交互来抓取docker容器和主机的资源信息。
· kubelet垃圾回收机制，包括容器垃圾回收和镜像垃圾回收。
· kubelet工作节点状态同步。
按照层分:
接入层: kube-apiserver
管理层:
kube-controller-manager
kube-scheduler
存储层: etcd
容器暂记:
master
kube-apiserver-amd64
kube-controller-manager-amd64
kube-scheduler-amd64
kube-discovery-amd64
etcd-amd64
node
kube-proxy-amd64
kubelet
addon
kubernetes-dashboard-amd64
kubedns-amd64
dnsmasq-metrics-amd64
kube-dnsmasq-amd64
exechealthz-amd64
pause-amd64
docker images
kube-apiserver-amd64_v1.5.1
kube-controller-manager-amd64_v1.5.1
kube-scheduler-amd64_v1.5.1
kube-proxy-amd64_v1.5.1
pause-amd64_3.0
kube-discovery-amd64_1.0
kubedns-amd64_1.9
exechealthz-amd64_1.2
kube-dnsmasq-amd64_1.4
dnsmasq-metrics-amd64_1.0
etcd_v3.0.15
flannel-amd64_v0.7.0
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