kubernetes中各资源类型yaml定义模板
Pod
apiVersion: v1 //API版本
kind: pod //类型，pod
metadata: //元数据
name: String //元数据，pod的名字
namespace: String //元数据，pod的命名空间
labels: //元数据，标签列表
- name: String //元数据，标签的名字
annotations: //元数据,自定义注解列表
- name: String //元数据,自定义注解名字
spec: //pod中容器的详细定义
containers: //pod中的容器列表，可以有多个容器
- name: String //Pod中容器名称
image: String //容器中的镜像
imagesPullPolicy: IfNotPresent //获取镜像的策略[Always|Never|IfNotPresent]
command: [String] //容器的启动命令列表（不配置的话使用镜像内部的命令）
args: [String] //启动参数列表
workingDir: String //容器的工作目录
volumeMounts: //挂载到到容器内部的存储卷设置
- name: String
mountPath: String
readOnly: boolean
ports: //容器需要暴露的端口号列表
- name: String
containerPort: int //容器要暴露的端口
hostPort: int //容器所在主机监听的端口（容器暴露端口映射到宿主机的端口）
protocol: String
env: //容器运行前要设置的环境变量列表
- name: String
value: String
resources: //容器运行资源限制
limits: //限制资源
cpu: Srting //单位为核，最小0.1
memory: String //单位为Mi、Gi
requeste: //请求资源
cpu: String
memory: String
livenessProbe: //容器健康检查的设置
exec: //通过命令的方式
command: [String]
httpGet: //通过httpget检查健康
path: String
port: number
host: String
scheme: Srtring
httpHeaders:
- name: Stirng
value: String
tcpSocket: //通过tcpSocket检查健康
port: number
initialDelaySeconds: 0 //首次检查时间
timeoutSeconds: 0 //检查超时时间
periodSeconds: 0 //检查间隔时间
successThreshold: 0
failureThreshold: 0
securityContext: //安全配置
privileged: falae
restartPolicy: Never //容器重启策略[Always|Never|OnFailure]
nodeSelector: object //负载节点选择
imagePullSecrets: //镜像pull时认证密钥(如果需要)
- name: String
hostNetwork: false //是否使用主机网络模式，默认否
volumes: //在该pod上定义共享存储卷
- name: String
meptyDir: {} //支持多种类型卷emptyDir、nfs、local-volume、ceph
hostPath:
path: string
secret: //类型为secret的存储卷
secretName: String
item:
- key: String
path: String
configMap: //类型为configMap的存储卷
name: String
items:
- key: String
path: String
一般情况下我们不会直接定义Pod来使用，基本都要配合编排来创建应用，但Pod模板部分配置依旧时按照上述情况配置的，下面给出一个经典的nginx应用Pod简化配置：
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
app: nginx
version: v1.16
spec:
containers:
- name: nginx
image: nginx
ports:
- containerPort: 80
Service
apiVersion: v1
kind: Service
metadata: //服务元数据信息，与Pod定义一样
name: nginx
labels:
app: nginx
version: v1
spec:
ports: //配置对应容器端口组
- port: 80
name: http
- port: 443
name: https
type: ClusterIP //定义服务对外暴露的方式[ClusterIP,NodePort,LoadBalancer]
selector: //选择对应Pod所拥有的label
app: nginx
PV
apiVersion: v1
kind: PersistentVolume
metadata:
name: pv01
spec:
capacity:
storage: 10Gi
accessModes:
- ReadWriteMany
nfs:
path: /nfsshare
server: 172.17.100.23
PVC
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: pvc01
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 10Gi
Deployment
通用定义：
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
labels:
app: nginx
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
version: v1.16
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
resources:
limits:
cpu: 1
memory: 2Gi
requests:
cpu: 100m
memory: 200Mi
ports:
- containerPort: 80
挂载持久卷
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx
labels:
app: nginx
spec:
replicas: 2
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
version: v1.16
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
resources:
limits:
cpu: 1
memory: 2Gi
requests:
cpu: 100m
memory: 200Mi
ports:
- containerPort: 80
volumeMounts:
- mountPath: /usr/share/nginx/html
name: html
volumes:
- name: html
persistentVolumeClaim:
claimName: pvc01
ConfigMap
apiVersion: v1
kind: ConfigMap
metadata:
name: cm-jdbcproperties
data:
key-jdbcproperties: |
JDBC_DRIVER_CLASS_NAME=com.mysql.jdbc.Driver
JDBC_URL=jdbc:mysql://localhost:3306/bz_argon?useUnicode=true&characterEncoding=utf8
JDBC_USER_NAME=root
JDBC_PASSWORD=maojiancai
JDBC_INITIALSIZE=10
JDBC_MAXACTIVE=20
JDBC_MAXIDLE=20
JDBC_MINIDLE=10
JDBC_MAXWAIT=60000
JDBC_VALIDATIONQUERY=SELECT 1 FROM DUAL
JDBC_TESTONBORROW=false
JDBC_TESTONRETURN=false
JDBC_TESTWHILEIDLE=true
JDBC_TIMEBETWEENEVICTIONRUNSMILLIS=6000
JDBC_MINEVICTABLEIDLETIMEMILLIS=25200000
JDBC_REMOVEABANDONED=true
JDBC_REMOVEABANDONEDTIMEOUT=1800
JDBC_LOGABANDONED=true
StatefulSet
apiVersion: apps/v1beta2
kind: StatefulSet
metadata:
name: ags
labels:
app: arcgisserver
version: v1
spec:
serviceName: server
replicas: 2
selector:
matchLabels:
app: arcgisserver
version: v1
template:
metadata:
labels:
app: arcgisserver
version: v1
spec:
containers:
- name: ags
image: 192.168.199.205:80/arcgis/ags:1071-noagent-v1
resources:
limits:
cpu: 4
memory: 8Gi
requests:
cpu: 100m
memory: 2Gi
ports:
- containerPort: 6443
name: https
- containerPort: 6080
name: http
env:
- name: "ECPPATH"
value: "/opt/server.ecp"
volumeMounts:
- mountPath: /gisdata
name: server
- mountPath: /opt
name: key
volumes:
- name: server
persistentVolumeClaim:
claimName: server
- name: key
secret:
secretName: agskey
HPC
apiVersion: autoscaling/v1
kind: HorizaontalPodAutoscaler
metadata:
name: php-apache
spec:
scaleTargetRef:
apiVersion: v1
kind: Deployment
name: php-apache
minReplicas: 1
maxrReplicas: 10
targetCPUUtilizationPercentage: 50
