二十五、Docker 安装 Tomcat

Tomcat 是 Java Web 最流行的容器之一，Docker 安装Tomcat有两种方法
我们以当前最新的版本9.0.8安装为例
因为Tomcat需要 Java 环境，我们使用的是jre8

1. docker pull tomcat

这种方法非常适合只需要使用Tomcat的开发者
1、查找 Docker Hub 上的 tomcat 镜像

[root@localhost ~]# docker search tomcat NAME     DESCRIPTION                          OFFICIAL   
    tomcat Apache Tomcat is an open source ... [OK] ...

有很多版本，我们选择官方的 `tomcat`

2、拉取官方的镜像,标签为9.0.8-jre8

[root@localhost ~]# docker pull tomcat:9.0.8-jre8 9.0.8-jre8: Pulling from library/tomcat

3、稍等片刻，就能在本地镜像列表里看到tomcat了

[root@localhost ~]# docker images tomcat REPOSITORY   TAG           IMAGE ID         CREATED        SIZE
    tomcat 9.0.8-jre8    fffeb191ae8c 2 weeks ago 465.6 MB

一个 `Tomcat` 容器 400m ....

4、通过 Dockerfile 构建
可以使用Dockerfile定制自己的 Tomcat 容器
1、创建目录tomcat,用于存放后面的相关东西

[root@localhost ~]# mkdir -p ~/tomcat/webapps ~/tomcat/logs ~/tomcat/conf

<table> <thead> <tr> <th align="left">目录</th> <th align="left">说明</th> </tr> </thead> <tbody> <tr> <td align="left">webapps</td> <td align="left">将映射为 tomcat 容器配置的应用程序目录</td> </tr> <tr> <td align="left">logs</td> <td align="left">将映射为 tomcat 容器的日志目录</td> </tr> <tr> <td align="left">conf</td> <td align="left">该目录下的配置文件将映射为 tomcat 容器的配置文件</td> </tr> </tbody> </table>

2、进入tomcat目录，创建Dockerfile

[root@localhost ~]# cd tomcat [root@localhost tomcat]# vi Dockerfile

复制并粘贴以下内容：

 FROM openjdk:8-jre

    ENV CATALINA_HOME /usr/local/tomcat
    ENV PATH $CATALINA_HOME/bin:$PATH
    RUN mkdir -p "$CATALINA_HOME" WORKDIR $CATALINA_HOME # let "Tomcat Native" live somewhere isolated ENV TOMCAT_NATIVE_LIBDIR $CATALINA_HOME/native-jni-lib
    ENV LD_LIBRARY_PATH ${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}$TOMCAT_NATIVE_LIBDIR # runtime dependencies for Tomcat Native Libraries # Tomcat Native 1.2+ requires a newer version of OpenSSL than debian:jessie has available # > checking OpenSSL library version >= 1.0.2... # > configure: error: Your version of OpenSSL is not compatible with this version of tcnative # see http://tomcat.10.x6.nabble.com/VOTE-Release-Apache-Tomcat-8-0-32-tp5046007p5046024.html (and following discussion) # and https://github.com/docker-library/tomcat/pull/31 ENV OPENSSL_VERSION 1.1.0f-3+deb9u2
    RUN set -ex; \
        currentVersion="$(dpkg-query --show --showformat '${Version}\n' openssl)"; \ if dpkg --compare-versions "$currentVersion" '<<' "$OPENSSL_VERSION"; then \ if ! grep -q stretch /etc/apt/sources.list; then \ # only add stretch if we're not already building from within stretch { \
                    echo 'deb http://deb.debian.org/debian stretch main'; \
                    echo 'deb http://security.debian.org stretch/updates main'; \
                    echo 'deb http://deb.debian.org/debian stretch-updates main'; \ } > /etc/apt/sources.list.d/stretch.list; \ { \ # add a negative "Pin-Priority" so that we never ever get packages from stretch unless we explicitly request them echo 'Package: *'; \
                    echo 'Pin: release n=stretch*'; \
                    echo 'Pin-Priority: -10'; \
                    echo; \ # ... except OpenSSL, which is the reason we're here echo 'Package: openssl libssl*'; \
                    echo "Pin: version $OPENSSL_VERSION"; \
                    echo 'Pin-Priority: 990'; \ } > /etc/apt/preferences.d/stretch-openssl; \ fi; \
            apt-get update; \
            apt-get install -y --no-install-recommends openssl="$OPENSSL_VERSION"; \
            rm -rf /var/lib/apt/lists/*; \
        fi

    RUN apt-get update && apt-get install -y --no-install-recommends \
            libapr1 \
        && rm -rf /var/lib/apt/lists/*

    ENV TOMCAT_MAJOR 9
    ENV TOMCAT_VERSION 9.0.8

    ENV TOMCAT_TGZ_URLS \
    # https://issues.apache.org/jira/browse/INFRA-8753?focusedCommentId=14735394#comment-14735394
        https://www.apache.org/dyn/closer.cgi?action=download&filename=tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz \
    # if the version is outdated, we might have to pull from the dist/archive :/
        https://www-us.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz \
        https://www.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz \
        https://archive.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz

    ENV TOMCAT_ASC_URLS \
        https://www.apache.org/dyn/closer.cgi?action=download&filename=tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz.asc \
    # not all the mirrors actually carry the .asc files :'(
        https://www-us.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz.asc \
        https://www.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz.asc \
        https://archive.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz.asc

    RUN set -eux; \
        \
        savedAptMark="$(apt-mark showmanual)"; \
        apt-get update; \
        \
        apt-get install -y --no-install-recommends gnupg dirmngr; \
        \
        apt-get install -y --no-install-recommends wget ca-certificates; \
        \
        success=; \
        for url in $TOMCAT_TGZ_URLS; do \
            if wget -O tomcat.tar.gz "$url"; then \
                success=1; \
                break; \
            fi; \
        done; \
        [ -n "$success" ]; \
        \
        tar -xvf tomcat.tar.gz --strip-components=1; \
        rm bin/*.bat; \
        rm tomcat.tar.gz*; \
        \
        nativeBuildDir="$(mktemp -d)"; \
        tar -xvf bin/tomcat-native.tar.gz -C "$nativeBuildDir" --strip-components=1; \
        apt-get install -y --no-install-recommends \
            dpkg-dev \
            gcc \
            libapr1-dev \
            libssl-dev \
            make \
            "openjdk-${JAVA_VERSION%%[.~bu-]*}-jdk=$JAVA_DEBIAN_VERSION" \
        ; \
        ( \
            export CATALINA_HOME="$PWD"; \
            cd "$nativeBuildDir/native"; \
            gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
            ./configure \
                --build="$gnuArch" \
                --libdir="$TOMCAT_NATIVE_LIBDIR" \
                --prefix="$CATALINA_HOME" \
                --with-apr="$(which apr-1-config)" \
                --with-java-home="$(docker-java-home)" \
                --with-ssl=yes; \
            make -j "$(nproc)"; \
            make install; \
        ); \
        rm -rf "$nativeBuildDir"; \
        rm bin/tomcat-native.tar.gz; \
        \
    # reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
        apt-mark auto '.*' > /dev/null; \
        [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
        apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
        rm -rf /var/lib/apt/lists/*; \
        \
    # sh removes env vars it doesn't support (ones with periods)
    # https://github.com/docker-library/tomcat/issues/77
        find ./bin/ -name '*.sh' -exec sed -ri 's|^#!/bin/sh$|#!/usr/bin/env bash|' '{}' +

    # verify Tomcat Native is working properly
    RUN set -e \
        && nativeLines="$(catalina.sh configtest 2>&1)" \
        && nativeLines="$(echo "$nativeLines" | grep 'Apache Tomcat Native')" \
        && nativeLines="$(echo "$nativeLines" | sort -u)" \
        && if ! echo "$nativeLines" | grep 'INFO: Loaded APR based Apache Tomcat Native library' >&2; then \
            echo >&2 "$nativeLines"; \
            exit 1; \
        fi

    EXPOSE 8080
    CMD ["catalina.sh", "run"]

3、使用docker build命令通过Dockerfile创建一个镜像my-tomcat:9.0.8-jre8

[root@localhost tomcat]# docker build -t my-tomcat:9.0.8-jre8 . Sending build context to Docker daemon 10.75 kB ...

4、稍等片刻，创建完成后就可以在本地的镜像列表里查找到刚刚创建的镜像

[root@localhost tomcat]# docker images my-tomcat REPOSITORY   TAG           IMAGE ID         CREATED        SIZE my-tomcat 9.0.8-jre8    d0ff57656e50 11 days ago 463.8 MB

运行 tomcat 容器

首先创建tomcat/webapps/demo目录并在demo目录下放一个index.html文件，内容如下

<!DOCTYPE html> <meta charset="utf-8"> <h2>Hello tech.souyunku.com</h2> <p>搜云库技术团队，教程 </p>

然后使用docker run运行my-tomcat容器

[root@localhost tomcat]# docker run -d --name tomcat -p 8080:8080 -v $PWD/webapps/demo:/usr/local/tomcat/webapps/demo tomcat:9.0.8-jre8 e139c23bf7bc3a4926db947e63fa0c07b771fc9b400645668945c07cb8dfd05a

命令说明
1、-p 8080:8080

将容器的 `8080` 端口映射到主机的 `8080` 端口

2、-v $PWD/webapps/demo:/usr/local/tomcat/webapps/demo

将主机中当前目录下的 `webapps/demo` 挂载到容器的 `/usr/local/tomcat/webapps/demo`

查看容器启动情况

可以使用docker ps -a查看 tomcat 容器的运行状况

[root@localhost tomcat]# docker ps -a CONTAINER ID   IMAGE               STATUS
e139c23bf7bc   tomcat:9.0.8-jre8 Up About a minute

通过浏览器访问 http://localhost:8080/demo/ 输出如下

二十五、Docker 安装 Tomcat

1. docker pull tomcat

运行 tomcat 容器

查看容器启动情况

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1. docker pull tomcat

运行 tomcat 容器

查看容器启动情况

站长

相关推荐

关注公众号 —— 加入社群 —— →「技术干货」每日推送 →「免费资料」限时领取 →「微信社群」技术讨论

2核2G服务器低至58元/年

分类目录

网站统计

觉得文章有用就打赏一下文章作者

支付宝扫一扫打赏

微信扫一扫打赏

QQ咨询

回顶部

关注公众号
—— 加入社群 ——
→「技术干货」每日推送
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