部署在k8s中
1. 部署脚本
参考 deploy/deploy-on-k8s.sh 中的脚本
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| # 将镜像打tag
docker tag cok-source-java-service1:v0.0.1 hub.aosccs.com.cn:8888/cokk8s/cok-source-java-service1:v0.0.1
docker tag cok-source-vue:v0.0.1 hub.aosccs.com.cn:8888/cokk8s/cok-source-vue:v0.0.1
docker tag cok-source-java-zuul:v0.0.1 hub.aosccs.com.cn:8888/cokk8s/cok-source-java-zuul:v0.0.1
docker tag cok-source-java-eureka:v0.0.1 hub.aosccs.com.cn:8888/cokk8s/cok-source-java-eureka:v0.0.1
# 推送到镜像仓库
docker login hub.aosccs.com.cn:8888
docker push hub.aosccs.com.cn:8888/cokk8s/cok-source-java-service1:v0.0.1
docker push hub.aosccs.com.cn:8888/cokk8s/cok-source-vue:v0.0.1
docker push hub.aosccs.com.cn:8888/cokk8s/cok-source-java-zuul:v0.0.1
docker push hub.aosccs.com.cn:8888/cokk8s/cok-source-java-eureka:v0.0.1
# 安装服务
kubectl create -f k8s-config/1.namespaces.yaml
kubectl create -f k8s-config/2.configmaps.yaml
kubectl create -f k8s-config/3.1.mysql-pvc.yaml
kubectl create -f k8s-config/3.2.mysql-deployment.yaml
kubectl create -f k8s-config/3.3.mysql-service.yaml
kubectl create -f k8s-config/4.1.eureka-deployment.yaml
kubectl create -f k8s-config/4.2.eureka-service.yaml
kubectl create -f k8s-config/5.1.zuul-deployment.yaml
kubectl create -f k8s-config/5.2.zuul-service.yaml
kubectl create -f k8s-config/6.service1-deployment.yaml
kubectl create -f k8s-config/7.1.vue-ui-deployment.yaml
kubectl create -f k8s-config/7.2.vue-ui-service.yaml
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2. 部署配置文件讲解
2.1 1.namespaces.yaml配置文件说明
- 创建
cokk8s 命名空间（一般一个项目用一个命名空间）
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| apiVersion: v1
kind: Namespace
metadata:
name: cokk8s
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2.2 2.configmaps.yaml配置文件说明
- 配置中创建了一个名称为
cokk8s的ConfigMap配置，配置中有一个Key ：service-application.yml
- 这个配置在后续的
6.service1-deployment.yaml中会用到
- 配置中连接的数据为地址
mysql:3306,表示连接本namespace（cokk8s）中的mysql服务的3306端口
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| apiVersion: v1
data:
service-application.yml: |-
server:
port: 18763
spring:
datasource:
max-idle: 8
min-idle: 8
max-active: 20
driverClassName: com.mysql.cj.jdbc.Driver
initial-size: 10
type: com.alibaba.druid.pool.DruidDataSource
url: jdbc:mysql://mysql:3306/mysql?characterEncoding=utf8&useSSL=false&allowMultiQueries=true
username: root
password: 123456
jpa:
show-sql: true
database: mysql
hibernate:
ddl-auto: create
database-platform: org.hibernate.dialect.MySQL5Dialect
kind: ConfigMap
metadata:
name: cokk8s
namespace: cokk8s
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2.3 3.1.mysql-pvc.yaml配置文件说明
- 创建一个mysql的PersistentVolumeClaim（PVC），用于后续部署MySQL的时候（
3.2.mysql-deployment.yaml），存储MySQL的数据文件
- 注意：我们这里用到了k8s中我们已经建好的storageClassName:
managed-nfs-storage（如果你所在k8s集群中没有，需要手动创建）
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| apiVersion: v1
kind: PersistentVolumeClaim
metadata:
annotations:
volume.beta.kubernetes.io/storage-provisioner: fuseim.pri/ifs
name: mysql
namespace: cokk8s
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 2Gi
storageClassName: managed-nfs-storage
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2.4 3.2.mysql-deployment.yaml配置文件说明
- 部署mysql，设置密码为
123456,存储为上一步创建的pvc：mysql，存储挂载到/var/lib/mysql目录
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| apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: mysql
name: mysql
namespace: cokk8s
spec:
replicas: 1
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
containers:
- env:
- name: MYSQL_ROOT_PASSWORD
value: "123456"
- name: MYSQL_PASSWORD
value: "123456"
name: mysql
image: mysql:5.7.30
imagePullPolicy: IfNotPresent
livenessProbe:
exec:
command:
- sh
- -c
- mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}
failureThreshold: 3
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 5
ports:
- containerPort: 3306
name: mysql
protocol: TCP
readinessProbe:
exec:
command:
- sh
- -c
- mysqladmin ping -u root -p${MYSQL_ROOT_PASSWORD}
failureThreshold: 3
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
resources:
requests:
cpu: 100m
memory: 256Mi
volumeMounts:
- mountPath: /var/lib/mysql
name: data
initContainers:
- command:
- rm
- -fr
- /var/lib/mysql/lost+found
name: remove-lost-found
image: busybox:1.29.3
imagePullPolicy: IfNotPresent
resources:
requests:
cpu: 10m
memory: 10Mi
volumeMounts:
- mountPath: /var/lib/mysql
name: data
restartPolicy: Always
volumes:
- name: data
persistentVolumeClaim:
claimName: mysql
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2.5 3.3.mysql-service.yaml配置文件说明
- 暴露mysql的服务，服务名称为
mysql,集群端口为3306,节点端口为18306
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| apiVersion: v1
kind: Service
metadata:
labels:
app: mysql
name: mysql
namespace: cokk8s
spec:
selector:
app: mysql
type: NodePort
ports:
- name: mysql
nodePort: 18306
port: 3306
protocol: TCP
targetPort: mysql
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2.6 4.1.eureka-deployment.yaml配置文件说明
- 部署cok-source-java-eureka镜像的Deployment，拉取镜像策略为
Always,容器暴露端口为18761
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| apiVersion: apps/v1
kind: Deployment
metadata:
labels:
appname: eureka
name: eureka
namespace: cokk8s
spec:
replicas: 1
selector:
matchLabels:
appname: eureka
template:
metadata:
labels:
appname: eureka
spec:
containers:
- image: hub.aosccs.com.cn:8888/cokk8s/cok-source-java-eureka:v0.0.1
imagePullPolicy: Always
name: eureka
ports:
- containerPort: 18761
protocol: TCP
restartPolicy: Always
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2.7 4.2.eureka-service.yaml配置文件说明
- 定义cok-source-java-eureka暴露的服务
eureka,目的是为了后面的zuul和service1可以通过eureka:18761连接eureka服务
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| apiVersion: v1
kind: Service
metadata:
labels:
appname: eureka
name: eureka
namespace: cokk8s
spec:
selector:
appname: eureka
type: NodePort
ports:
- name: serice-0
nodePort: 18761
port: 18761
protocol: TCP
targetPort: 18761
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2.8 5.1.zuul-deployment.yaml配置文件说明
- 定义部署zuul的Deployment，连接eureka的地址为
http://eureka:18761/eureka,容器端口为18762
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| apiVersion: apps/v1
kind: Deployment
metadata:
labels:
appname: zuul
name: zuul
namespace: cokk8s
spec:
replicas: 1
selector:
matchLabels:
appname: zuul
template:
metadata:
labels:
appname: zuul
spec:
containers:
- env:
- name: EUREKA_URI
value: http://eureka:18761/eureka
image: hub.aosccs.com.cn:8888/cokk8s/cok-source-java-zuul:v0.0.1
imagePullPolicy: Always
name: zuul
ports:
- containerPort: 18762
protocol: TCP
restartPolicy: Always
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2.9 5.2.zuul-service.yaml配置文件说明
- 暴露zuul的节点端口
18762，后续测试的时候前端页面通过这个端口调用后台接口
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| apiVersion: v1
kind: Service
metadata:
labels:
appname: zuul
name: zuul
namespace: cokk8s
spec:
selector:
appname: zuul
type: NodePort
ports:
- name: serice-zuul
nodePort: 18762
port: 18762
protocol: TCP
targetPort: 18762
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2.10 6.service1-deployment.yaml配置文件说明
- 定义部署service1的Deployment，连接eureka的地址为
http://eureka:18761/eureka,容器端口为18763
- 由于service1不直接对外提供服务（外部通过zuul访问service1），因此不需要配置service1的节点端口等
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| apiVersion: apps/v1
kind: Deployment
metadata:
labels:
appname: service1
name: service1
namespace: cokk8s
spec:
replicas: 1
selector:
matchLabels:
appname: service1
template:
metadata:
labels:
appname: service1
spec:
containers:
- env:
- name: EUREKA_URI
value: http://eureka:18761/eureka
image: hub.aosccs.com.cn:8888/cokk8s/cok-source-java-service1:v0.0.1
imagePullPolicy: Always
livenessProbe:
failureThreshold: 3
initialDelaySeconds: 120
periodSeconds: 10
successThreshold: 1
tcpSocket:
port: 18763
timeoutSeconds: 30
name: service1
volumeMounts:
- mountPath: /opt/application.yml
name: application-yml-config
subPath: application.yml
restartPolicy: Always
volumes:
- name: application-yml-config
configMap:
defaultMode: 420
items:
- key: service-application.yml
path: application.yml
name: cokk8s
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2.11 7.1.vue-ui-deployment.yaml配置文件说明
- 定义部署vue-ui的Deployment，由于镜像基于nginx构建，用的nginx的默认配置，因此容器端口为nginx的默认端口
80
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| apiVersion: apps/v1
kind: Deployment
metadata:
labels:
appname: vue-ui
name: vue-ui
namespace: cokk8s
spec:
replicas: 1
selector:
matchLabels:
appname: vue-ui
template:
metadata:
labels:
appname: vue-ui
spec:
containers:
- image: edgehub.acedge.cn:8888/cokk8s/cok-source-vue:v0.0.1
imagePullPolicy: Always
name: vue-ui
ports:
- containerPort: 80
protocol: TCP
restartPolicy: Always
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2.12 7.2.vue-ui-service.yaml配置文件说明
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| apiVersion: v1
kind: Service
metadata:
labels:
appname: vue-ui
name: vue-ui
namespace: cokk8s
spec:
ports:
- name: serice-0
nodePort: 18765
port: 80
protocol: TCP
targetPort: 80
selector:
appname: vue-ui
type: NodePort
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3. 测试访问
访问地址：http://192.168.3.124:18765/cok-ui/index.html
4. 服务调用逻辑
