[系统运维] Docker_Tomcat

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[系统运维]Docker_Tomcat_Perl

pull tomcat镜像

sixdog@192 Docker % docker pull tomcat
Using default tag: latest
latest: Pulling from library/tomcat
bb7d5a84853b: Pull complete 
f02b617c6a8c: Pull complete 
d32e17419b7e: Pull complete 
c9d2d81226a4: Pull complete 
fab4960f9cd2: Pull complete 
da1c1e7baf6d: Pull complete 
1d2ade66c57e: Pull complete 
ea2ad3f7cb7c: Pull complete 
d75cb8d0a5ae: Pull complete 
76c37a4fffe6: Pull complete 
Digest: sha256:509cf786b26a8bd43e58a90beba60bdfd6927d2ce9c7902cfa675d3ea9f4c631
Status: Downloaded newer image for tomcat:latest
docker.io/library/tomcat:latest

下载的镜像确认

sixdog@192 Docker % docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
tomcat       latest    b0e0b0a92cf9   2 weeks ago   680MB

创建容器
3.1. 容器名字：tomcat1
3.2. 容器端口映射：8080
3.3. 容器配置文件挂载
3.4. 进入容器看一看

sixdog@192 Docker % docker run --name tomcat1 -p 8080:8080 -v $PWD/tomcat/webapps:/usr/local/tomcat/webapps/test -v $PWD/tomcat/conf:/usr/local/tomcat/conf  -d tomcat
596aaed00804ba4792f5c621341c17fa847c9854be433ab897f19e9f517f2637

自动创建目录
在这里插入图片描述
进入容器，这时才发现因为挂载了PC上的目录，目录是空的，导致容器里tomcat的配置文件等被同步为空，所以tomcat已经启动不了了

sixdog@192 Docker % docker start tomcat1
tomcat1
sixdog@192 Docker % docker ps -a        
CONTAINER ID   IMAGE     COMMAND             CREATED          STATUS                     PORTS     NAMES
596aaed00804   tomcat    "catalina.sh run"   13 minutes ago   Exited (1) 3 seconds ago             tomcat1

所以删掉容器

sixdog@192 Docker % docker rm tomcat1
tomcat1
sixdog@192 Docker % docker ps -a     
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES

先创建一个临时容器，拷贝他的配置文件等到PC目录下,留作之后挂载用

sixdog@192 Docker % docker run --name tomcat -p 8080:8080 -d tomcat   
35b040b9bf196e5b339d6c6481dd484f40fc8d576235e9ade3247982d7136ead
sixdog@192 Docker % docker ps -a
CONTAINER ID   IMAGE     COMMAND             CREATED         STATUS         PORTS                    NAMES
35b040b9bf19   tomcat    "catalina.sh run"   6 seconds ago   Up 6 seconds   0.0.0.0:8080->8080/tcp   tomcat

进入容器,可以看到三个目标文件夹conf，logs，webapps

sixdog@192 Docker % docker exec -it 35b040b9bf19 bash #进入容器
root@35b040b9bf19:/usr/local/tomcat# 
root@35b040b9bf19:/usr/local/tomcat# ls -lt
total 160
drwxrwxrwx 1 root root  4096 Nov 11 13:58 logs
drwxr-xr-x 1 root root  4096 Nov 11 13:58 conf
drwxr-xr-x 2 root root  4096 Oct 22 00:23 bin
drwxr-xr-x 2 root root  4096 Oct 22 00:23 native-jni-lib
drwxr-xr-x 2 root root  4096 Oct 22 00:22 lib
drwxrwxrwx 2 root root  4096 Oct 22 00:22 temp
drwxr-xr-x 2 root root  4096 Oct 22 00:22 webapps
-rw-r--r-- 1 root root 18994 Sep 28 13:34 BUILDING.txt
-rw-r--r-- 1 root root  6210 Sep 28 13:34 CONTRIBUTING.md
-rw-r--r-- 1 root root 60269 Sep 28 13:34 LICENSE
-rw-r--r-- 1 root root  2333 Sep 28 13:34 NOTICE
-rw-r--r-- 1 root root  3372 Sep 28 13:34 README.md
-rw-r--r-- 1 root root  6905 Sep 28 13:34 RELEASE-NOTES
-rw-r--r-- 1 root root 16517 Sep 28 13:34 RUNNING.txt
drwxr-xr-x 7 root root  4096 Sep 28 13:34 webapps.dist
drwxrwxrwx 2 root root  4096 Sep 28 13:34 work
root@35b040b9bf19:/usr/local/tomcat# exit

拷贝容器内文件夹到PC上

sixdog@192 Docker %  docker cp tomcat:/usr/local/tomcat/webapps $PWD/tomcat
sixdog@192 Docker %  docker cp tomcat:/usr/local/tomcat/conf $PWD/tomcat
sixdog@192 Docker %  docker cp tomcat:/usr/local/tomcat/logs $PWD/tomcat
sixdog@192 Docker %

目录确认
在这里插入图片描述
删除镜像

sixdog@192 Docker % docker ps -a
CONTAINER ID   IMAGE     COMMAND             CREATED          STATUS                        PORTS     NAMES
35b040b9bf19   tomcat    "catalina.sh run"   17 minutes ago   Exited (143) 15 seconds ago             tomcat
sixdog@192 Docker % docker rm 35b040b9bf19 
35b040b9bf19
sixdog@192 Docker % docker ps -a           
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
sixdog@192 Docker %

再次创建镜像并挂载

sixdog@192 Docker % 
sixdog@192 Docker % docker run --name tomcat1 -p 8080:8080 -v $PWD/tomcat/webapps:/usr/local/tomcat/webapps/sixdog -v $PWD/tomcat/conf:/usr/local/tomcat/conf -v $PWD/tomcat/logs:/usr/local/tomcat/logs/ -d tomcat
677f514040a97ff102eb361e7bc71c861a5cc31e4e0425a19caa95b8e043a890
sixdog@192 Docker % docker ps -a
CONTAINER ID   IMAGE     COMMAND             CREATED         STATUS         PORTS                    NAMES
677f514040a9   tomcat    "catalina.sh run"   7 seconds ago   Up 7 seconds   0.0.0.0:8080->8080/tcp   tomcat1
sixdog@192 Docker %

进入镜像

sixdog@192 Docker % docker exec -it 677 bash
root@677f514040a9:/usr/local/tomcat# ls -lt
total 152
drwxrwxrwx  1 root root  4096 Nov 11 14:19 work
drwxr-xr-x  1 root root  4096 Nov 11 14:19 webapps
drwxr-xr-x 13 root root   416 Nov 11 13:58 conf
drwxrwxrwx  4 root root   128 Nov 11 13:58 logs
drwxr-xr-x  2 root root  4096 Oct 22 00:23 bin
drwxr-xr-x  2 root root  4096 Oct 22 00:23 native-jni-lib
drwxr-xr-x  2 root root  4096 Oct 22 00:22 lib
drwxrwxrwx  2 root root  4096 Oct 22 00:22 temp
-rw-r--r--  1 root root 18994 Sep 28 13:34 BUILDING.txt
-rw-r--r--  1 root root  6210 Sep 28 13:34 CONTRIBUTING.md
-rw-r--r--  1 root root 60269 Sep 28 13:34 LICENSE
-rw-r--r--  1 root root  2333 Sep 28 13:34 NOTICE
-rw-r--r--  1 root root  3372 Sep 28 13:34 README.md
-rw-r--r--  1 root root  6905 Sep 28 13:34 RELEASE-NOTES
-rw-r--r--  1 root root 16517 Sep 28 13:34 RUNNING.txt
drwxr-xr-x  7 root root  4096 Sep 28 13:34 webapps.dist
root@677f514040a9:/usr/local/tomcat#

修改PC上文件，容器内确认是否同步更改
创建文件index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    hello world!!!
</body>
</html>

将index.html放入webapps目录下

sixdog@192 tomcat % ls
conf		index.html	logs		webapps
sixdog@192 tomcat % mv index.html ./webapps/index.html
sixdog@192 tomcat % ls
conf	logs	webapps
sixdog@192 tomcat % ls webapps 
index.html
sixdog@192 tomcat %

容器内确认

sixdog@192 tomcat % docker exec -it 677 bash          
root@677f514040a9:/usr/local/tomcat# ls -lt
total 152
drwxrwxrwx  1 root root  4096 Nov 11 14:19 work
drwxr-xr-x  1 root root  4096 Nov 11 14:19 webapps
drwxr-xr-x 13 root root   416 Nov 11 13:58 conf
drwxrwxrwx  4 root root   128 Nov 11 13:58 logs
drwxr-xr-x  2 root root  4096 Oct 22 00:23 bin
drwxr-xr-x  2 root root  4096 Oct 22 00:23 native-jni-lib
drwxr-xr-x  2 root root  4096 Oct 22 00:22 lib
drwxrwxrwx  2 root root  4096 Oct 22 00:22 temp
-rw-r--r--  1 root root 18994 Sep 28 13:34 BUILDING.txt
-rw-r--r--  1 root root  6210 Sep 28 13:34 CONTRIBUTING.md
-rw-r--r--  1 root root 60269 Sep 28 13:34 LICENSE
-rw-r--r--  1 root root  2333 Sep 28 13:34 NOTICE
-rw-r--r--  1 root root  3372 Sep 28 13:34 README.md
-rw-r--r--  1 root root  6905 Sep 28 13:34 RELEASE-NOTES
-rw-r--r--  1 root root 16517 Sep 28 13:34 RUNNING.txt
drwxr-xr-x  7 root root  4096 Sep 28 13:34 webapps.dist
root@677f514040a9:/usr/local/tomcat# ls webapps/sixdog/
index.html
root@677f514040a9:/usr/local/tomcat# cat webapps/sixdog/index.html 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    hello world!!!
</body>
</html>

浏览器输入http://192.168.0.102:8080/确认结果

原因是容器里webapps目录里没有相关文件，发现在webapps.dist文件夹里有相关文件，拷贝过来

root@677f514040a9:/usr/local/tomcat# cp -r ./webapps.dist/* webapps/
root@677f514040a9:/usr/local/tomcat# ls webapps
ROOT  docs  examples  host-manager  manager  sixdog

再次访问http://192.168.0.102:8080/ 已经可以访问
在这里插入图片描述
http://192.168.0.102:8080/sixdog/index.html

5.修改配置文件，新建文件夹，文件等
修改web.xml

    <servlet>  
            <servlet-name>cgi</servlet-name>  
            <servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>  
            <init-param>  
            <param-name>debug</param-name>  
            <param-value>0</param-value>  
            </init-param>  
            <init-param>    
            <param-name>executable</param-name>    
            <param-value>perl</param-value>  
            </init-param>  
            <init-param>  
            <param-name>cgiPathPrefix</param-name>  
	        <param-value>WEB-INF/cgi</param-value>
            </init-param>  
            <init-param>
            <param-name>passShellEnvironment</param-name>
            <param-value>true</param-value>  
            </init-param>
            <load-on-startup>5</load-on-startup>  
        </servlet>  
        
        <servlet-mapping>  
            <servlet-name>cgi</servlet-name>  
	    <url-pattern>*.cgi</url-pattern> 
        </servlet-mapping>  
	
  <!-- ================ Built In Servlet Mappings ========================= -->

context.xml加privileged=“true”

<Context privileged="true">

    <!-- Default set of monitored resources. If one of these changes, the    -->
    <!-- web application will be reloaded.                                   -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>WEB-INF/tomcat-web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>

    <!-- Uncomment this to enable session persistence across Tomcat restarts -->
    <!--
    <Manager pathname="SESSIONS.ser" />
    -->
</Context>