创建pod资源
pod是最小资源单位.
任何的一个k8s资源都可以由yaml清单文件来定义
k8s yaml的主要组成
apiVersion: v1 api版本
kind: pod 资源类型
metadata: 属性
spec: 详细
#master节点
mkdir k8s_yaml/pod -p
cd k8s_yaml/pod/
vim k8s_pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
app: web
spec:
containers:
- name: nginx
image: 10.0.0.11:5000/nginx:1.13
ports:
- containerPort: 80
kubectl create -f k8s_pod.yaml
kubectl get pod
#node节点
wget http://192.168.18.251/file/docker_nginx1.13.tar.gz
docker load -i docker_nginx1.13.tar.gz
docker tag docker.io/nginx:1.13 10.0.0.11:5000/nginx:1.13
docker push 10.0.0.11:5000/nginx:1.13
wget http://192.168.18.251/file/pod-infrastructure-latest.tar.gz
docker load -i pod-infrastructure-latest.tar.gz
docker tag docker.io/tianyebj/pod-infrastructure 10.0.0.11:5000/pod-infrastructure:latest
docker push 10.0.0.11:5000/pod-infrastructure
vim /etc/kubernetes/kubelet
KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=10.0.0.11:5000/pod-infrastructure:latest"
systemctl restart kubelet.service
什么是pod资源
一个pod资源
至少包含两个容器
业务容器和pod基础容器
业务容器和pod基础容器共用IP地址
pod的一组容器
#master节点：
vim k8s_pod2.yaml
apiVersion: v1
kind: Pod
metadata:
name: test
labels:
app: web
spec:
containers:
- name: nginx
image: 10.0.0.11:5000/nginx:1.13
ports:
- containerPort: 80
- name: alpine
image: 10.0.0.11:5000/alpine:latest
command: ["sleep","1000"]
kubectl create -f k8s_pod2.yaml
kubectl get pod
#node节点
wget http://192.168.18.251/file/docker_alpine.tar.gz
docker tag alpine:latest 10.0.0.11:5000/alpine:latest
docker push 10.0.0.11:5000/alpine:latest
vim /etc/kubernetes/kubelet
KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=10.0.0.11:5000/pod-infrastructure:latest"
wget http://192.168.18.251/file/pod-infrastructure-latest.tar.gz
docker load -i pod-infrastructure-latest.tar.gz
docker tag docker.io/tianyebj/pod-infrastructure:latest 10.0.0.11:5000/pod-infrastructure
docker push 10.0.0.11:5000/pod-infrastructure
#pod是k8s最小的资源单位
pod的一组容器
#master节点：
vim k8s_pod2.yaml
apiVersion: v1
kind: Pod
metadata:
name: test
labels:
app: web
spec:
containers:
- name: nginx
image: 10.0.0.11:5000/nginx:1.13
ports:
- containerPort: 80
- name: alpine
image: 10.0.0.11:5000/alpine:latest
command: ["sleep","1000"]
kubectl create -f k8s_pod2.yaml
kubectl get pod
#node节点
wget http://192.168.18.251/file/docker_alpine.tar.gz
docker tag alpine:latest 10.0.0.11:5000/alpine:latest
docker push 10.0.0.11:5000/alpine:latest
vim /etc/kubernetes/kubelet
KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=10.0.0.11:5000/pod-infrastructure:latest"
wget http://192.168.18.251/file/pod-infrastructure-latest.tar.gz
docker load -i pod-infrastructure-latest.tar.gz
docker tag docker.io/tianyebj/pod-infrastructure:latest 10.0.0.11:5000/pod-infrastructure
docker push 10.0.0.11:5000/pod-infrastructure
#pod是k8s最小的资源单位
