Docker（三）：Docker部署Nginx和Tomcat

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    一、Docker安装Nginx

    # 1、搜索 nginx
[root@jiangwang home]# docker search nginx
NAME                               DESCRIPTION                                     STARS  
nginx                              Official build of Nginx.                        14539  
jwilder/nginx-proxy                Automated Nginx reverse proxy for docker con…   1981   
richarvey/nginx-php-fpm            Container running Nginx + PHP-FPM capable of…   809    
jc21/nginx-proxy-manager           Docker container for managing Nginx proxy ho…   158    
linuxserver/nginx                  An Nginx container, brought to you by LinuxS…   142    
tiangolo/nginx-rtmp                Docker image with Nginx using the nginx-rtmp…   115    
jlesage/nginx-proxy-manager        Docker container for Nginx Proxy Manager        97     
bitnami/nginx                      Bitnami nginx Docker Image                      94     
alfg/nginx-rtmp                    NGINX, nginx-rtmp-module and FFmpeg from sou…   89     
jasonrivers/nginx-rtmp             Docker images to host RTMP streams using NGI…   88     
nginxdemos/hello                   NGINX webserver that serves a simple page co…   67     
nginx/nginx-ingress                NGINX Ingress Controller for Kubernetes         49     
privatebin/nginx-fpm-alpine        PrivateBin running on an Nginx, php-fpm & Al…   48     
nginxinc/nginx-unprivileged        Unprivileged NGINX Dockerfiles                  31     
schmunk42/nginx-redirect           A very simple container to redirect HTTP tra…   19     
staticfloat/nginx-certbot          Opinionated setup for automatic TLS certs lo…   19     
nginx/nginx-prometheus-exporter    NGINX Prometheus Exporter                       16     
centos/nginx-112-centos7           Platform for running nginx 1.12 or building …   15     
centos/nginx-18-centos7            Platform for running nginx 1.8 or building n…   13     
flashspys/nginx-static             Super Lightweight Nginx Image                   9      
bitwarden/nginx                    The Bitwarden nginx web server acting as a r…   9      
bitnami/nginx-ingress-controller   Bitnami Docker Image for NGINX Ingress Contr…   8      
mailu/nginx                        Mailu nginx frontend                            8      
ansibleplaybookbundle/nginx-apb    An APB to deploy NGINX                          2      
wodby/nginx                        Generic nginx   

# 2、下载 nginx 镜像
[root@jiangwang home]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
a076a628af6f: Pull complete 
0732ab25fa22: Pull complete 
d7f36f6fe38f: Pull complete 
f72584a26f32: Pull complete 
7125e4df9063: Pull complete 
Digest: sha256:10b8cc432d56da8b61b070f4c7d2543a9ed17c2b23010b43af434fd40e2ca4aa
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest

# 3、启动nginx
# -d 后台启动
# --name  给容器命名
# -p 宿主机端口：容器端口
[root@jiangwang home]# docker run -d  --name nginx01 -p 3344:80 nginx
0692aec62ba9f2487653629280becb8bcb915605faee12ee3bd3b8d5de148c32
[root@jiangwang home]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS                  NAMES
0692aec62ba9   nginx     "/docker-entrypoint.…"   7 seconds ago   Up 6 seconds   0.0.0.0:3344->80/tcp   nginx01
# 本地访问一下试试
[root@jiangwang home]# curl localhost:3344
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
[root@jiangwang home]# 

# 进入容器
[root@jiangwang home]# docker exec -it nginx01 /bin/bash
root@0692aec62ba9:/# whereis nginx
nginx: /usr/sbin/nginx /usr/lib/nginx /etc/nginx /usr/share/nginx
root@0692aec62ba9:/# cd /etc/nginx
root@0692aec62ba9:/etc/nginx# ls
conf.d        koi-utf  mime.types  nginx.conf   uwsgi_params
fastcgi_params    koi-win  modules     scgi_params  win-utf
root@0692aec62ba9:/etc/nginx# 

# 停止容器的运行
root@0692aec62ba9:/etc/nginx# exit   # 退出容器
exit
[root@jiangwang home]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS                  NAMES
0692aec62ba9   nginx     "/docker-entrypoint.…"   9 minutes ago   Up 9 minutes   0.0.0.0:3344->80/tcp   nginx01
[root@jiangwang home]# docker stop 0692aec62ba9   # 停止容器
0692aec62ba9

    在浏览器上用公网访问一下，测试看看，结果也是可以访问到的，这里面前提是你的3344端口号已经开发了，只要是开发的端口号都可以进行测试。

    二、Docker安装Tomcat

    # 下载 tomcat 镜像
[root@jiangwang home]# docker pull tomcat
Using default tag: latest
latest: Pulling from library/tomcat
Digest: sha256:94cc18203335e400dbafcd0633f33c53663b1c1012a13bcad58cced9cd9d1305
Status: Downloaded newer image for tomcat:latest
docker.io/library/tomcat:latest
[root@jiangwang home]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED        SIZE
tomcat       9.0       040bdb29ab37   7 weeks ago    649MB
tomcat       latest    040bdb29ab37   7 weeks ago    649MB
nginx        latest    f6d0b4767a6c   8 weeks ago    133MB
centos       latest    300e315adb2f   3 months ago   209MB
# 启动 tomcat 容器，将容器的 8080 端口与外网的 3355 端口进行映射
[root@jiangwang home]# docker run -d -p 3355:8080 --name tomcat01 tomcat
1a0d54668dd61afb333aa0854e1c0ceafca3c8f695f820089d28eefa4977f0f6
[root@jiangwang home]#

    浏览器上查看一下：结果是404，说明

    # 进入 tomcat 容器 ，发现webapps 下面什么都没有 ，这个是阿里云镜像的原因 ，默认是最小的镜像，所有不必要的都剔除了，保证最小可运行环境
[root@jiangwang home]# docker exec -it tomcat01 /bin/bash
root@1a0d54668dd6:/usr/local/tomcat# ls -al
total 176
drwxr-xr-x 1 root root  4096 Jan 13 08:25 .
drwxr-xr-x 1 root root  4096 Jan 13 08:19 ..
-rw-r--r-- 1 root root 18982 Dec  3 11:48 BUILDING.txt
-rw-r--r-- 1 root root  5409 Dec  3 11:48 CONTRIBUTING.md
-rw-r--r-- 1 root root 57092 Dec  3 11:48 LICENSE
-rw-r--r-- 1 root root  2333 Dec  3 11:48 NOTICE
-rw-r--r-- 1 root root  3257 Dec  3 11:48 README.md
-rw-r--r-- 1 root root  6898 Dec  3 11:48 RELEASE-NOTES
-rw-r--r-- 1 root root 16507 Dec  3 11:48 RUNNING.txt
drwxr-xr-x 2 root root  4096 Jan 13 08:25 bin
drwxr-xr-x 1 root root  4096 Mar  9 11:39 conf
drwxr-xr-x 2 root root  4096 Jan 13 08:25 lib
drwxrwxrwx 1 root root  4096 Mar  9 11:39 logs
drwxr-xr-x 2 root root  4096 Jan 13 08:25 native-jni-lib
drwxrwxrwx 2 root root  4096 Jan 13 08:25 temp
drwxr-xr-x 2 root root  4096 Jan 13 08:25 webapps
drwxr-xr-x 7 root root  4096 Dec  3 11:45 webapps.dist
drwxrwxrwx 2 root root  4096 Dec  3 11:43 work
root@1a0d54668dd6:/usr/local/tomcat# cd webapps
root@1a0d54668dd6:/usr/local/tomcat/webapps# ls
root@1a0d54668dd6:/usr/local/tomcat/webapps# 


# 将webapps.dist 目录下的文件拷贝到 webapps下面 ，然后刷新页面就可以看到tomcat页面了
root@1a0d54668dd6:/usr/local/tomcat/webapps# cd ..
root@1a0d54668dd6:/usr/local/tomcat# cd webapps.dist
root@1a0d54668dd6:/usr/local/tomcat/webapps.dist# ls
ROOT  docs  examples  host-manager  manager
root@1a0d54668dd6:/usr/local/tomcat/webapps.dist# cd ..
root@1a0d54668dd6:/usr/local/tomcat# cp -r webapps.dist/* webapps
root@1a0d54668dd6:/usr/local/tomcat# cd webapps
root@1a0d54668dd6:/usr/local/tomcat/webapps# ls
ROOT  docs  examples  host-manager  manager
root@1a0d54668dd6:/usr/local/tomcat/webapps#

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