Docker_Linux

整体想法：用hub的tomcat做一个简单的perl能运行的容器
目的：了解docker基本使用命令以及容器挂载过程

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

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

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




    
    
    
    document


    hello world!!!

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 



    
    
    
    document


    hello world!!!

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

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

      
            cgi  
            org.apache.catalina.servlets.CGIServlet  
              
            debug  
            0  
              
                
            executable    
            perl  
              
              
            cgiPathPrefix  
	        WEB-INF/cgi
              
            
            passShellEnvironment
            true  
            
            5  
          
        
          
            cgi  
	    *.cgi

context.xml加privileged=“true”



    
    
    WEB-INF/web.xml
    WEB-INF/tomcat-web.xml
    ${catalina.base}/conf/web.xml

目录结构

访问cgi
http://192.168.0.102:8080/sixdog/test.cgi

#!/usr/bin/perl
 
print "Content-type:text/htmlrnrn";
print '';
print '';
print '';
print '溜狗';
print '';
print '';
print 'Hello Word from sixdog';
print '';
print '';

访问index.html
http://192.168.0.102:8080/sixdog/html/index.html

一个简单的表单提交，本打算做个csv数据库，增删改查，不过容器里的Ubuntu安装这种老旧技术用的东西比较吃力，放弃了

加了个html，cgi

#!/usr/bin/perl

# use DBI;
# use strict;
# use CGI qw( :standard); #CGI无法安装， 以下写法用不了

# my $query = CGI->new;
# my $mode = $query->param('mode');
# my $id = $query->param('id');
# my $name = $query->param('name');
# my $sex = $query->param('sex');
# my $age = $query->param('age');
# my $job = $query->param('job');

local ($buffer, @pairs, $pair, $name, $value, %FORM);
read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});

@pairs = split(/&/, $buffer);
foreach $pair (@pairs)
{
   ($name, $value) = split(/=/, $pair);
   $value =~ tr/+/ /;
   $value =~ s/%(..)/pack("C", hex($1))/eg;
   $FORM{$name} = $value;
}

my $mode = $FORM{mode}; 
my $id = $FORM{id}; 
my $name = $FORM{name}; 
my $sex = $FORM{sex}; 
if($sex eq "male"){
      $sex = '男';
}else{
      $sex = '女';
}
my $age = $FORM{age}; 
my $job = $FORM{job} ;


print "$moden";
if($mode eq "init"){
      # my $dbc=DBI->connect("DBI:CSV:f_dir=;csv_ed=/usr/local/tomcat/webapps/sixdog/WEB-INF/cgin;");
      # $dbc->{'csv.tables'}->{'users'}={'file'=>'users.csv'};
      # my $dbcIn = $dbc->prepare("insert into users(id,name,sex,age,job) values (?????);");
      # $dbcIn->execute($id,$name,$sex,$age,$job);

      print "Content-type:text/htmlrnrn";
      print "";
      print "";
      print '';
      print 'sixdog';
      print "";
      print "";
      print "输入id：$id";
      print "输入name：$name";
      print "输入sex：$sex";
      print "输入age：$age";
      print "输入job：$job";
      print "";
      print "";
}
1;

补足1：容器内安装vim
执行apt-get update，
然后再次执行apt-get install vim即可成功安装vim
补足2：启动tomcat容器出log的时间和系统时间不一致
在tomcat的bin/catalina.sh 前面添加如下:
export JAVA_OPTS="$JAVA_OPTS -server -Dfile.encoding=UTF-8 -Duser.timezone=GMT+08"

Docker

add user

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