k8s部署nginx訪問Tomcat的實現(xiàn)示例

更新時間：2023年08月08日 08:38:59 作者：大蝦別跑

本文介紹了如何使用Kubernetes部署Nginx，并通過Nginx訪問Tomcat，對大家的學習或者工作具有一定的參考學習價值，需要的朋友們下面隨著小編來一起學習學習吧

1.nginx打包鏡像

#1、編寫DockerFile
mkdir /opt/my_nginx_dockerfile
cd /opt/my_nginx_dockerfile
cat >default.conf<<'EOF'?
server {
? ? listen ? ? ? 80;
? ? listen ?[::]:80;
? ? server_name ?localhost;
? ? #access_log ?/var/log/nginx/host.access.log ?main;
? ? location / {
? ? ? ? root ? /usr/share/nginx/html;
? ? ? ? index ?index.html index.htm;
? ? }
? ? location /tomcat/ {
? ? ? ? proxy_pass http://tomcat-web-service;
? ? ? ? proxy_set_header ? Host ? ?$host;
? ? ? ? proxy_set_header ? X-Forwarded-For $proxy_add_x_forwarded_for;
? ? ? ? proxy_set_header X-Real-IP $remote_addr;
? ? }
? ? #error_page ?404 ? ? ? ? ? ? ?/404.html;
? ? # redirect server error pages to the static page /50x.html
? ? #
? ? error_page ? 500 502 503 504 ?/50x.html;
? ? location = /50x.html {
? ? ? ? root ? /usr/share/nginx/html;
? ? }
? ? # proxy the PHP scripts to Apache listening on 127.0.0.1:80
? ? #
? ? #location ~ \.php$ {
? ? # ? ?proxy_pass ? http://127.0.0.1;
? ? #}
? ? # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
? ? #
? ? #location ~ \.php$ {
? ? # ? ?root ? ? ? ? ? html;
? ? # ? ?fastcgi_pass ? 127.0.0.1:9000;
? ? # ? ?fastcgi_index ?index.php;
? ? # ? ?fastcgi_param ?SCRIPT_FILENAME ?/scripts$fastcgi_script_name;
? ? # ? ?include ? ? ? ?fastcgi_params;
? ? #}
? ? # deny access to .htaccess files, if Apache's document root
? ? # concurs with nginx's one
? ? #
? ? #location ~ /\.ht {
? ? # ? ?deny ?all;
? ? #}
}
EOF
cat ?>/opt/my_nginx_dockerfile/Dockerfile << 'EOF'
FROM nginx
WORKDIR /etc/nginx/conf.d
RUN echo "nginx v1 version" >/usr/share/nginx/html/index.html
ADD default.conf /etc/nginx/conf.d
EOF
cd /opt/my_nginx_dockerfile
#2、編譯鏡像
docker build -t 192.168.1:30012/k8s/my_nginx:v1 .
#3、登陸鏡像
docker login -u admin -p Harbor12345 192.168.1:30012
#4、推送至倉庫
docker push 192.168.1:30012/k8s/my_nginx:v1

2.Tomcat打包鏡像

#編寫DockerFile
mkdir -p /opt/my_tomcat_dockerfile
cat ?>/opt/my_tomcat_dockerfile/Dockerfile << 'EOF'
FROM tomcat:latest
RUN mkdir webapps/ROOT/tomcat -p && echo "My Tomcat v1 version">webapps/ROOT/tomcat/index.html
EOF
cd /opt/my_tomcat_dockerfile
#編譯鏡像
docker build -t 192.168.1:30012/k8s/my_tomcat:v1 .
#登陸鏡像
docker login -u admin -p Harbor12345 192.168.1:30012
#推送至倉庫
docker push 192.168.1:30012/k8s/my_tomcat:v1

3.部署nginx

cat >nginx-proxy.yml<<'EOF'
---
apiVersion: apps/v1
kind: Deployment
metadata:
? name: nginx-deployment
? labels:
? ? app: nginx
spec:
? replicas: 1
? selector:
? ? matchLabels:
? ? ? app: nginx
? template:
? ? metadata:
? ? ? labels:
? ? ? ? app: nginx
? ? spec:
? ? ? containers:
? ? ? - name: nginx
? ? ? ? image: 192.168.1:30012/k8s/my_nginx:v1
? ? ? ? ports:
? ? ? ? - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
? name: nginx-web-service
? labels:
? ? app: nginx-web-service
spec:
? type: NodePort
? selector:
? ? app: nginx
? ports:
? - protocol: TCP
? ? name: http
? ? port: 80
? ? targetPort: 80
? ? nodePort: 30086
EOF
kubectl apply -f nginx-proxy.yml

4.部署Tomcat

cat >tomcat-proxy.yml<<'EOF'
apiVersion: apps/v1
kind: Deployment
metadata:
?name: tomcat-deployment
?labels:
? ?app: tomcat
spec:
?replicas: 1
?selector:
? ?matchLabels:
? ? ?app: tomcat
?template:
? ?metadata:
? ? ?labels:
? ? ? ?app: tomcat
? ?spec:
? ? ?containers:
? ? ?- name: tomcat
? ? ? ?image: 192.168.1:30012/k8s/my_tomcat:v1
? ? ? ?ports:
? ? ? ?- containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
?name: tomcat-web-service
?labels:
? ?app: tomcat-web-service
spec:
?type: NodePort
?selector:
? ?app: tomcat
?ports:
? ?- protocol: TCP
? ? ?name: http
? ? ?port: 80
? ? ?targetPort: 8080
? ? ?nodePort: 30087
EOF
kubectl apply -f tomcat-proxy.yml

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