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This article mainly introduces how to deploy Tomcat cluster and Nginx load balance based on Docker, which has certain reference value. Interested friends can refer to it. I hope you will learn a lot after reading this article. Let's take a look at it.

Structure diagram:

Here only as a kind of learning, generally this kind of load, Nginx is put on the host side, JavaWeb (Tomcat) application is put in the container.

Effect.

Create a new folder.

Ngixn Ngixn image to make cd uag_nginx/# to store the configuration file mkdir nginxvim Dockerfile

Dockerfile file content

FROM nginxLABEL maintainer= "uag" ENV REFRESHED_AT 2021-08-27EXPOSE 8099

Build the contents of the nginx profile

The configuration file for this is shared with the container internally through the-v parameter while the container is running. It is convenient to change parameters later.

Cd. / nginxvim nginx.conf

Nginx.conf profile content

User nginx;worker_processes auto;error_log / var/log/nginx/error.log notice;pid / var/run/nginx.pid;daemon off;events {worker_connections 1024;} http {include / etc/nginx/mime.types; default_type application/octet-stream Log_format main'$upstream_addr-$remote_addr-$remote_user [$time_local] "$request"'$status $body_bytes_sent "$http_referer"'"$http_user_agent"$http_x_forwarded_for"; access_log / var/log/nginx/access.log main; sendfile on; # tcp_nopush on; keepalive_timeout 65 # gzip on; include / etc/nginx/conf.d/*.conf; server {listen 8099; server_name localhost; root / var/www/html/; index index.html index.htm; access_log / var/log/nginx/default_access.log main; error_log / var/log/nginx/default_error.log Location / {proxy_pass http://backend;} location ~. * {proxy_pass http://backend; proxy_set_header Host $http_host; proxy_set_header X-Real-IP $remote_addr Proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;} # load upstream backend {server 172.23.231.190 upstream backend 8069; server 172.23.231.190 upstream backend 8079; server 172.23.231.190 upstream backend 8089;}}

Configure the load: 172.23.231.190 is the host IP,8069,8079,8089 as the corresponding Java Web exposed application port.

# here configure load upstream backend {server 172.23.231.190 server 8069; server 172.23.231.190 server 8079; server 172.23.231.190 server 8089;}

Build a Nginx image

Docker build-t uag/uag_nginx.

Second, java Web (Tomcat) uses images to build cd uag_tomcat8/vim Dockerfile

Dockerfile file content

FROM dordoka/tomcatMAINTAINER LIRUILONGCOPY UAWeb.war / opt/tomcat/webapps/UAWeb.warEXPOSE 8080ENTRYPOINT ["/ opt/tomcat/bin/catalina.sh", "run"]

Upload the corresponding War package

LsDockerfile UAWeb.war

Build an image

Docker build-t uag/uag_tomcat.

Third, run the container Nginx image docker run-d-p 8099-- name uag_nginx-v $PWD/nginx/nginx.conf:/etc/nginx/nginx.conf uag/uag_nginx nginx

Java Web (Tomcat) Mirror

Docker run-it-d-p 8089 it 8080-- name uag_app_1 uag/uag_tomcat docker run-it-d-p 8079 name uag_app_1 uag/uag_tomcat docker run-- name uag_app_2 uag/uag_tomcat docker run-it-d-p 8069 name uag_app_1 uag/uag_tomcat docker run-- name uag_app_3 uag/uag_tomcat

View the running container

Browser access

View the load mode: the way the new process

View load mode:-volumes-from mode

Dockerfile file

FROM nginxLABEL maintainer= "uag" ENV REFRESHED_AT 2021-08-27VOLUME / var/log/nginx/EXPOSE 80 ┌── (liruilong ㉿ Liruilong)-[/ mnt/e/docker/uag/uag_nginx] └─ $docker run-it-rm-- volumes-from nginx_log centos cat / var/log/nginx/default_access.log172.23.231.190:8069-172.17.0.1-- [30/Aug/2021:12:55:02 + 0000] "GET / UAWeb / services/listServices HTTP/1.1 "12660" http://127.0.0.1:8099/UAWeb/"Mozilla/5.0 (Windows NT 10.0 Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 "-" 172.23.231.190 KHTML 8079-172.17.0.1-- [30/Aug/2021:12:55:02 + 0000] "GET / UAWeb/axis2-web/css/axis-style.css HTTP/1.1" 200 1587 "http://127.0.0.1:8099/UAWeb/services/listServices"" Mozilla/5.0 (Windows NT 10.0; Win64 X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 "-" 172.23.231.190 KHTML 8069-172.17.0.1-- [30/Aug/2021:12:55:02 + 0000] "GET / UAWeb/axis2-web/images/asf-logo.gif HTTP/1.1" 200 5866 "http://127.0.0.1:8099/UAWeb/services/listServices"" Mozilla/5.0 (Windows NT 10.0; Win64 X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 "-" 172.23.231.190 KHTML 8079-172.17.0.1-- [30/Aug/2021:12:55:02 + 0000] "GET / UAWeb/axis2-web/images/axis_l.jpg HTTP/1.1" 200 12340 "http://127.0.0.1:8099/UAWeb/services/listServices"" Mozilla/5.0 (Windows NT 10.0; Win64 X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 "-" 172.23.231.190 KHTML 8089-172.17.0.1-- [30/Aug/2021:12:55:03 + 0000] "GET / UAWeb/services/listServices HTTP/1.1" 200 12660 "http://127.0.0.1:8099/UAWeb/"" Mozilla/5.0 (Windows NT 10.0; Win64 X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 "-" 172.23.231.190 KHTML 8069-172.17.0.1-- [30/Aug/2021:12:55:03 + 0000] "GET / UAWeb/axis2-web/images/asf-logo.gif HTTP/1.1" 200 5866 "http://127.0.0.1:8099/UAWeb/services/listServices"" Mozilla/5.0 (Windows NT 10.0; Win64 X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92

Build an image upload repository:

Well, you need to sign up for a Docker Hub account, and then log in. You need to add the account name / before the image.

┌── (liruilong ㉿ Liruilong)-[/ mnt/e/docker/uag/uag_nginx] └─ $docker push liruilong/nginx_logThe push refers to repository [docker.io/liruilong/nginx_log] An image does not exist locally with the tag: liruilong/nginx_log ┌── (liruilong ㉿ Liruilong)-[/ mnt/e/docker/uag/uag_nginx] └─ $docker tag 9c9af0362eb9 liruilong/nginx_log ┌── (liruilong ㉿ Liruilong)-[/ mnt/e/docker/uag/uag_nginx] └─ $docker push liruilong/nginx_logThe push refers to repository [docker.io/liruilong/nginx_log] fb04ab8effa8: Pushed8f736d52032f: Pushed009f1d338b57: Pushed678bbd796838: Pushedd1279c519351: Pushedf68ef921efae: Pushedlatest: digest: sha256:2af7e8aeab84e8a816caf6b0342e1a45f95c7089ff52578040ea3a4c28a943c7 size: 1570 ┌── (liruilong ㉿ Liruilong)-[/ mnt/e/docker/uag/uag_nginx] └─ $docker push liruilong/nginx_log:tagname # pull the image

Thank you for reading this article carefully. I hope the article "how to deploy Tomcat clusters and Nginx load balancing based on Docker" shared by the editor will be helpful to you. At the same time, I also hope you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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