2023年11月2日 (四) 13:35 Evan

2023-11-02T13:35:07Z

新页面

=golang=
<pre>
tmp# cat Dockerfile
FROM golang:alpine
RUN mkdir /app
COPY . /app
WORKDIR /app
RUN go mod init example.com/m/v2
RUN go build -o main .
CMD ["/app/main"]
root@myxps:/home/evan/data/devops/go/gotmp# cat 1.go
package main

import (
"fmt"
"net/http"
)

func index(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "<h1>Hello World</h1>")
}

func check(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "<h1>Health check</h1>")
}

func main() {
http.HandleFunc("/", index)
http.HandleFunc("/health_check", check)
fmt.Println("Server starting...")
http.ListenAndServe(":3000", nil)
}

docker build --tag evan886/go-app:v1 .

docker push evan886/go-app:v1

cat go.yml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-go-app
spec:
replicas: 1
selector:
matchLabels:
app: go-app
template:
metadata:
labels:
app: go-app
spec:
containers:
- name: go-app-container
image: evan886/go-app:v1
resources:
limits:
memory: "128Mi"
cpu: "500m"
ports:
- containerPort: 3000

kubectl apply -f go.yml
deployment.apps/my-go-app created
root@ubuntu-200430-1:~/go# kubectl get deployments
NAME READY UP-TO-DATE AVAILABLE AGE
my-go-app 0/1 1 0 8s
mysql 1/1 1 1 10h
nginx-deployment 1/1 1 1 3d23h
nginx-server 1/1 1 1 3d22h
root@ubuntu-200430-1:~/go# kubectl get pod
NAME READY STATUS RESTARTS AGE
debug-pod 2/2 Running 10 (11h ago) 3d23h
debug-podd 2/2 Running 11 (11h ago) 3d23h
kafka-0 0/1 Pending 0 2d10h
kafka-1 0/1 Pending 0 2d10h
kafka-2 0/1 Pending 0 2d10h
my-go-app-697b68fd46-q9nrv 0/1 ContainerCreating 0 17s

root@ubuntu-200430-1:~/go# kubectl expose deployment my-go-app --type=NodePort --name=go-app-svc --target-port=3000
service/go-app-svc exposed

root@ubuntu-200430-1:~/go# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
go-app-svc NodePort 10.233.151.125 <none> 3000:31645/TCP 27s

http://192.168.10.31:31645/

</pre>

=renferences=
[https://linux.cn/article-9845-1.html 在 Kubernetes 上运行一个 Python 应用程序]

[https://blog.csdn.net/CHENYUFENG1991/article/details/79843618 Kubernetes集群部署tomcat容器/Java web应用流程-docker cp方式]

[http://www.importnew.com/28633.html Kubernetes集群部署tomcat容器/Java web应用流程-docker cp方式]

[https://www.centos.bz/2017/07/docker-install-java-web-env/ 使用Docker搭建 Java Web运行环境]

[[category:k8s]]

在Kubernetes上运行应用程序 - 版本历史

2023年11月2日 (四) 13:35 Evan