目錄
- 創建dockerfile
- 打包并且推送
- 創建namespace
- 創建deployment
- 創建service
- 創建ingress
- 創建hpa
alertGo程序可以參考上篇文章，主要用于alertmanager實現釘釘報警
創建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
創建namespace
apiVersion: v1
kind: Namespace
metadata:
name: k8s-go
創建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
創建service
apiVersion: v1
kind: Service
metadata:
name: alertgo
namespace: k8s-go
spec:
selector:
app: alertgo
ports:
- port: 80
targetPort: 8088
創建ingress
kind: Ingress # 對象類型
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
創建hpa
kind: HorizontalPodAutoscaler # 對象類型，簡稱 hpa，水平自動伸縮
apiVersion: autoscaling/v2beta2 # autoscaling/v2beta2 與 autoscaling/v1 的 API 有很大的不同，注意識別兩者的差異
metadata:
name: alertgo
namespace: fronted
spec:
scaleTargetRef: # 伸縮的目標對象
apiVersion: apps/v1 # 對象版本
kind: Deployment # 目標對象的類型
name: alertgo # 目標對象的名稱
minReplicas: 3 # 最小副本數
maxReplicas: 6 # 最大副本數
metrics: # 指標
- type: Resource # 類型：資源
resource:
name: memory # 內存
target:
type: Utilization
averageUtilization: 70 # 1% 這個值是為了實驗，具體值請參考業務方實際情況而定
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: 70
結果查看
[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
到此這篇關于K8s部署發布Golang應用程序的實現方法的文章就介紹到這了,更多相關K8s部署發布Golang內容請搜索腳本之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持腳本之家！
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