在Docker中有兩種方式來安裝tomcat服務器。
1、從Docker Hub中下載Tomcat鏡像
搜索Docker Hub中的Tomcat鏡像
docker search tomcat
排名靠前的是官方的Tocmat鏡像，來自官方鏡像說明可以參考點擊打開鏈接
從以上列表中選擇一個合適的Tomcat下載安裝
docker pull tomcat:7 漫長地下載等待後就下載安裝成功了
查看本地鏡像
docker images #所有鏡像
docker image tomcat:7 #查看REPOSITORY爲tomcat:7的鏡像運行Tomcat鏡像
docker run -d -p 8081:8080 tomcat:7 
查看運行中的容器
docker ps停止運行容器
docker stop 運行中容器id刪除容器
docker rm 容器id刪除鏡像
docker rmi 鏡像id2、使用dockerfile構建Tomcat容器鏡像
很多生產環境下要使用個性化配置的Tomcat，使用dockerfile就是最合適的了
準備好jdk、tomcat安裝包、Dockerfile文件、tomcat-users.xml文件
Dockerfile文件
FROM ubuntu:14.04
MAINTAINER ycx <[email protected]>
# now add java and tomcat support in the container
ADD jdk-8u161-linux-x64.tar.gz /usr/local/
ADD apache-tomcat-7.0.85.tar.gz /usr/local/
# configuration of java and tomcat ENV
ENV JAVA_HOME /usr/local/jdk1.8.0_161
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
ENV CATALINA_HOME /usr/local/apache-tomcat-7.0.85
ENV CATALINA_BASE /usr/local/apache-tomcat-7.0.85
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin
# container listener port
EXPOSE 8080
# startup web application services by self
CMD /usr/local/apache-tomcat-7.0.85/bin/catalina.sh runtomcat-users.xml文件
<tomcat-users xmlns="http://tomcat.apache.org/xml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://tomcat.apache.org/xml tomcat-users.xsd"
version="1.0">
<role rolename="manager"/>
<role rolename="manager-gui"/>
<role rolename="admin"/>
<role rolename="admin-gui"/>
<role rolename="manager-script"/>
<user username="admin" password="admin" roles="admin-gui,admin,manager-gui,manager,manager-script"/>
</tomcat-users>使用ftp將這4個文件上傳到Ubuntu服務器
解壓apache-tomcat-7.0.85.tar.gz
tar -zxvf apache-tomcat-7.0.85.tar.gz修改它裏面的context.xml、tomcat-users.xml文件
context.xml修改如下
<?xml version="1.0" encoding="UTF-8"?>
<Context antiResourceLocking="false" privileged="true" docBase="${catalina.home}/webapps/manager" >
<Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="^.*$" />
<Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
</Context> 把目錄中的tomcat-users.xml覆蓋到tomcat中的tomcat-users.xml文件中
tomcat-users.xml如下
<?xml version="1.0" encoding="UTF-8"?>
<Context antiResourceLocking="false" privileged="true" docBase="${catalina.home}/webapps/manager" >
<Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="^.*$" />
<Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
</Context> 打包apache-tomcat-7.0.85.爲apache-tomcat-7.0.85.tar.gz
tar czvf apache-tomcat-7.0.85.tar.gz apache-tomcat-7.0.85在這4個文件的當前目錄，執行編譯命令，“.”表示當前文件夾
$ sudo docker build -t ycx/tomcat-im .控制檯打印如下，表示編譯成功
ubuntu@ubuntu:~/winshare/tomcatweb$ sudo docker build -t ycx/tomcat-im .
Sending build context to Docker daemon 198.8MB
Step 1/12 : FROM ubuntu:14.04
14.04: Pulling from library/ubuntu
c2c80a08aa8c: Pull complete
6ace04d7a4a2: Pull complete
f03114bcfb25: Pull complete
99df43987812: Pull complete
9c646cd4d155: Pull complete
Digest: sha256:b92dc7814b2656da61a52a50020443223445fdc2caf1ea0c51fa38381d5608ad
Status: Downloaded newer image for ubuntu:14.04
---> 3b853789146f
Step 2/12 : MAINTAINER ycx <[email protected]>
---> Running in 4bddec2f502e
Removing intermediate container 4bddec2f502e
---> d93a0f2ccda9
Step 3/12 : ADD jdk-8u161-linux-x64.tar.gz /usr/local/
---> 91b07a36381f
Step 4/12 : ADD apache-tomcat-7.0.85.tar.gz /usr/local/
---> 7fc87249584c
Step 5/12 : ADD tomcat-users.xml /usr/local/apache-tomcat-7.0.85/conf/tomcat-users.xml
---> 7e9c3e5ff344
Step 6/12 : ENV JAVA_HOME /usr/local/jdk1.8.0_161
---> Running in bc7e83399dd6
Removing intermediate container bc7e83399dd6
---> f8323859c84f
Step 7/12 : ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
---> Running in bb82cd2bf8b0
Removing intermediate container bb82cd2bf8b0
---> d20b0c25df42
Step 8/12 : ENV CATALINA_HOME /usr/local/apache-tomcat-7.0.85
---> Running in 8e50eac104de
Removing intermediate container 8e50eac104de
---> f8776a09b35f
Step 9/12 : ENV CATALINA_BASE /usr/local/apache-tomcat-7.0.85
---> Running in 7939810f6002
Removing intermediate container 7939810f6002
---> 6ae9de1087a6
Step 10/12 : ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin
---> Running in 79a158e874cc
Removing intermediate container 79a158e874cc
---> a41575ff32d4
Step 11/12 : EXPOSE 8080
---> Running in 0e63db3d01ba
Removing intermediate container 0e63db3d01ba
---> d11af7f6314d
Step 12/12 : CMD /usr/local/apache-tomcat-7.0.85/bin/catalina.sh run
---> Running in e620e59127fa
Removing intermediate container e620e59127fa
---> a985c7e5dc47
Successfully built a985c7e5dc47
Successfully tagged ycx/tomcat-im:latest
接下來啓動Tomcat鏡像
$ sudo docker run -d -p 8082:8080 ycx/tomcat-im:latest
其他Docker操作命令如上，就不再重述
自動部署War包到Tomcat鏡像
項目pom.xml配置
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 遠程部署，當使用本地調試時禁用 -->
<url>http://192.168.1.111:8082/manager/text</url>
<!-- Tomcat的tomcat-users.xml中指定的用戶名和密碼 -->
<username>admin</username>
<password>admin</password>
<!-- 服務器的名稱，與maven全局setting.xml中server的id一致 -->
<server>tomcat7</server>
<port>8082</port>
<path>/</path>
<!-- 本地調試用下面的 -->
<!-- <port>8081</port> -->
<!-- <path>/</path> -->
</configuration>
</plugin> maven部署命令
clean tomcat7:deploy
eclipse控制檯有如下顯示錶示遠程部署成功
[INFO] WEB-INF\web.xml already added, skipping
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.2:deploy (default-cli) < package @ im-manager-web <<<
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:deploy (default-cli) @ im-manager-web ---
[INFO] Deploying war to http://192.168.1.111:8082/
Uploading: http://192.168.1.111:8082/manager/text/deploy?path=%2F
Uploaded: http://192.168.1.111:8082/manager/text/deploy?path=%2F (31105 KB at 2066.2 KB/sec)
[INFO] tomcatManager status code:200, ReasonPhrase:OK
[INFO] OK - Deployed application at context path /
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] im-manager ......................................... SUCCESS [ 1.525 s]
[INFO] im-manager-pojo .................................... SUCCESS [ 5.164 s]
[INFO] im-manager-dao ..................................... SUCCESS [ 2.088 s]
[INFO] im-manager-service ................................. SUCCESS [ 2.071 s]
[INFO] im-manager-web ..................................... SUCCESS [01:26 min]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:38 min
[INFO] Finished at: 2018-04-15T12:48:33+08:00
[INFO] Final Memory: 19M/148M
[INFO] ------------------------------------------------------------------------然後打開瀏覽器輸入http://192.168.1.111:8082/loginpage，打開項目頁面
當然也可以打包成war包單獨上傳tomcat部署，就不再講述，希望對大家由幫助