一些 K8s 资源 yaml 例子，用的时候直接粘贴复制
K8s service示例： nginx service
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
app.kubernetes.io/name: proxy
spec:
containers:
- name: nginx
image: nginx:stable
ports:
- containerPort: 80
name: http-web-svc
---
apiVersion: v1
kind: Service
metadata:
name: nginx-service
spec:
selector:
app.kubernetes.io/name: proxy
ports:
- name: name-of-service-port
protocol: TCP
port: 80
targetPort: http-web-svc
simple pod，能跑起来的最小化配置
---
apiVersion: v1
kind: Pod
metadata:
name: pods-simple-pod
spec:
containers:
- command:
- sleep
- "3600"
image: busybox
name: pods-simple-container
测试网络通不通的一个 job，简单的job, curl job
apiVersion: batch/v1
kind: Job
metadata:
name: curl-test
namespace: ack-cos
spec:
completions: 1
parallelism: 1
template:
metadata:
creationTimestamp: null
spec:
containers:
- command:
- /bin/sh
- "-c"
- "curl www.baidu.com"
image: curlimages/curl:latest
imagePullPolicy: IfNotPresent
name: main
restartPolicy: OnFailure
简单的 deployment
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
labels:
app: nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
debug-network.yaml
---
apiVersion: v1
kind: Pod
metadata:
name: debug-network-pod
spec:
containers:
- command:
- sleep
- "3600"
image: praqma/network-multitool
name: debug-network-container
dns-debug.yaml
---
# https://kubernetes.io/docs/tasks/administer-cluster/dns-debugging-resolution/
apiVersion: v1
kind: Pod
metadata:
name: pod-dns-debug
spec:
containers:
- command:
- sleep
- "3600"
image: gcr.io/kubernetes-e2e-test-images/dnsutils:1.3
name: dnsutils
对容器进行 iperf 网络测试 服务端
apiVersion: apps/v1
kind: Deployment
metadata:
name: iperf-server-deployment
labels:
app: iperf-server
spec:
replicas: 1
selector:
matchLabels:
app: iperf-server
template:
metadata:
labels:
app: iperf-server
spec:
nodeSelector:
kubernetes.io/hostname: serverhost-name
containers:
- name: iperf3-server
image: taoyou/iperf3-alpine:latest
args: ['-s']
ports:
- containerPort: 5001
name: server
terminationGracePeriodSeconds: 0
客户端
apiVersion: apps/v1
kind: Deployment
metadata:
name: iperf-client-deployment
labels:
app: iperf-client
spec:
replicas: 1
selector:
matchLabels:
app: iperf-client
template:
metadata:
labels:
app: iperf-client
spec:
nodeSelector:
kubernetes.io/hostname: client-host
containers:
- name: iperf3-client
image: taoyou/iperf3-alpine:latest
command:
- sleep
- "7200"
命令：
# -c 指定主机名
# -p 指定主机端口
# -i 打印结果间隔
# -t 测试持续时间（秒数）
iperf3 -c 10.0.167.59 -p 5201 -i 1 -t 240
spec.initContainers/
apiVersion: v1
kind: Pod
metadata:
name: init-container-pod
spec:
containers:
- name: init-container-container
image: busybox
command: ['sh', '-c', 'echo The app is running! && sleep 3600']
initContainers:
- name: init-container-init-container
image: busybox
command: ['sh', '-c', "until nslookup pods-init-container-service.$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace).svc.cluster.local; do echo waiting for myservice; sleep 2; done"]
spec.containers.lifecycle/
apiVersion: v1
kind: Pod
metadata:
name: lifecycle-pod
spec:
containers:
- image: nginx
lifecycle:
postStart:
exec:
command: ["/bin/sh", "-c", "echo Hello from the postStart handler > /usr/share/message"]
preStop:
exec:
command: ["/bin/sh", "-c", "nginx -s quit; while killall -0 nginx; do sleep 1; done"]
name: lifecycle-container
resources_and_limits
apiVersion: v1
kind: Pod
metadata:
name: memory-request-limit-pod
spec:
containers:
- command: ["sleep", "3600"]
image: busybox
name: memory-request-limit-container
resources:
limits:
memory: "200Mi"
requests:
memory: "100Mi"
spec.affinity.nodeAffinity/
apiVersion: v1
kind: Pod
metadata:
name: pod-node-affinity
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: Exists
containers:
- command: ["sleep", "3600"]
name: pod-node-affinity-container
image: busybox
spec.nodeSelector/
apiVersion: v1
kind: Pod
metadata:
name: pod-node-selector-simple
spec:
containers:
- command: ["sleep", "3600"]
image: busybox
name: pod-node-selector-simple-container
nodeSelector:
node-role.kubernetes.io/master: ""
spec.tolerations/
apiVersion: v1
kind: Pod
metadata:
name: pod-toleration
spec:
containers:
- command: ["sleep", "3600"]
image: busybox
name: pod-toleration-container
tolerations:
- key: "" # empty means match all taint keys
operator: Exists
