目录
- 创建dockerfile
- 打包并且推送
- 创建namespace
- 创建deployment
- 创建service
- 创建ingress
- 创建hpa
alertGo程序可以参考上篇文章，主要用于alertmanager实现钉钉报警
创建dockerfile
FROM golang:1.14-alpine
ENV GOPROXY=https://goproxy.cn
WORKDIR /build
COPY . .
EXPOSE 8088
RUN mkdir /app
RUN go mod tidy
RUN go build -o /app/alertGo alertGo.go
WORKDIR /app
CMD ["/app/alertGo"]
打包并且推送
docker build -t 10.206.16.4/k8s-go/alert.sentsss.com:v2 .
docker push 10.206.16.4/k8s-go/alert.sentsss.com:v2
创建namespace
apiVersion: v1
kind: Namespace
metadata:
name: k8s-go
创建deployment
apiVersion: apps/v1
kind: Deployment
metadata:
name: alertgo
namespace: k8s-go
spec:
selector:
matchLabels:
app: alertgo
replicas: 2
template:
metadata:
labels:
app: alertgo
spec:
imagePullSecrets:
- name: registry-pull-secret
containers:
- name: alertgo
image: 10.206.16.4/k8s-go/alert.sentsss.com:v2
ports:
- containerPort: 8088
livenessProbe:
httpGet:
path: /
port: 8088
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
failureThreshold: 3
timeoutSeconds: 1
readinessProbe:
httpGet:
path: /
port: 8088
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
failureThreshold: 3
timeoutSeconds: 1
lifecycle:
preStop:
exec:
command: ["/bin/bash","-c","sleep 20"]
resources:
limits:
cpu: 20m
memory: 20Mi
requests:
cpu: 10m
memory: 10Mi
创建service
apiVersion: v1
kind: Service
metadata:
name: alertgo
namespace: k8s-go
spec:
selector:
app: alertgo
ports:
- port: 80
targetPort: 8088
创建ingress
kind: Ingress # 对象类型
apiVersion: networking.k8s.io/v1beta1
metadata:
name: alertgo
namespace: k8s-go
spec:
rules:
- host: alertgo.xxx.com
http:
paths:
- path: /
backend:
serviceName: alertgo
servicePort: 80
创建hpa
kind: HorizontalPodAutoscaler # 对象类型，简称 hpa，水平自动伸缩
apiVersion: autoscaling/v2beta2 # autoscaling/v2beta2 与 autoscaling/v1 的 API 有很大的不同，注意识别两者的差异
metadata:
name: alertgo
namespace: fronted
spec:
scaleTargetRef: # 伸缩的目标对象
apiVersion: apps/v1 # 对象版本
kind: Deployment # 目标对象的类型
name: alertgo # 目标对象的名称
minReplicas: 3 # 最小副本数
maxReplicas: 6 # 最大副本数
metrics: # 指标
- type: Resource # 类型：资源
resource:
name: memory # 内存
target:
type: Utilization
averageUtilization: 70 # 1% 这个值是为了实验，具体值请参考业务方实际情况而定
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 70
结果查看
[root@k8s-master-01 alertGo]# kubectl get pods,svc,ingress,hpa -n k8s-go
NAME READY STATUS RESTARTS AGE
pod/alertgo-5bc79ccd65-8thmw 1/1 Running 0 37m
pod/alertgo-5bc79ccd65-dm8ll 1/1 Running 0 38m
pod/alertgo-5bc79ccd65-m9cd4 0/1 ContainerCreating 0 0s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/alertgo ClusterIP 10.1.140.126 none> 80/TCP 65m
NAME HOSTS ADDRESS PORTS AGE
ingress.extensions/alertgo alertgo.sentsss.com 80 34m
NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
horizontalpodautoscaler.autoscaling/alertgo Deployment/alertgo 79%/70%, 10%/70% 2 6 2 15s
到此这篇关于K8s部署发布Golang应用程序的实现方法的文章就介绍到这了,更多相关K8s部署发布Golang内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！
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