Docker 安装 Tomcat

Docker 安装 Tomcat

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方法一、docker pull tomcat

查找 Docker Hub 上的 tomcat 镜像：

docker search tomcat

这里我们拉取官方最新版本的 tomcat 镜像：

docker pull tomcat

等待下载完成后，我们就可以在本地镜像列表里查到 REPOSITORY 为 tomcat 的镜像：

docker images|grep tomcat

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方法二、通过 Dockerfile 构建

创建 Dockerfile

首先，创建目录 tomcat，用于存放后面的相关东西：

mkdir -p ./tomcat/webapps ./tomcat/logs ./tomcat/conf

webapps 目录将映射为 tomcat 容器配置的应用程序目录

logs 目录将映射为 tomcat 容器的日志目录

conf 目录里的配置文件将映射为 tomcat 容器的配置文件

进入创建的 tomcat 目录，创建 Dockerfile

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}
' 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/*

# see https://www.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/KEYS
# see also "update.sh" (https://github.com/docker-library/tomcat/blob/master/update.sh)
ENV GPG_KEYS 05AB33110949707C93A279E3D3EFE6B686867BA6 07E48665A34DCAFAE522E5E6266191C37C037D42 47309207D818FFD8DCD3F83F1931D684307A10A5 541FBE7D8F78B25E055DDEE13C370389288584E7 61B832AC2F1C5A90F0F9B00A1C506407564C17A3 713DA88BE50911535FE716F5208B0AB1D63011C7 79F7026C690BAA50B92CD8B66A3AD3F4F22C4FED 9BA44C2621385CB966EBA586F72C284D731FABEE A27677289986DB50844682F8ACB77FC2E86E29AC A9C5DF4D22E99998D9875A5110C01C5A2F6059E7 DCFD35E0BF8CA7344752DE8B6FB21E8933C60243 F3A04C595DB5B6A5F1ECA43E3B7BBB100D811BBE F7DA48BB64BCB84ECBA7EE6935CD23C10D498E23

ENV TOMCAT_MAJOR 8
ENV TOMCAT_VERSION 8.5.32
ENV TOMCAT_SHA512 fc010f4643cb9996cad3812594190564d0a30be717f659110211414faf8063c61fad1f18134154084ad3ddfbbbdb352fa6686a28fbb6402d3207d4e0a88fa9ce

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; 
    
    export GNUPGHOME="$(mktemp -d)"; 
    for key in $GPG_KEYS; do 
        gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; 
    done; 
    
    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" ]; 
    
    echo "$TOMCAT_SHA512 *tomcat.tar.gz" | sha512sum -c -; 
    
    success=; 
    for url in $TOMCAT_ASC_URLS; do 
        if wget -O tomcat.tar.gz.asc "$url"; then 
            success=1; 
            break; 
        fi; 
    done; 
    [ -n "$success" ]; 
    
    gpg --batch --verify tomcat.tar.gz.asc tomcat.tar.gz; 
    tar -xvf tomcat.tar.gz --strip-components=1; 
    rm bin/*.bat; 
    rm tomcat.tar.gz*; 
    rm -rf "$GNUPGHOME"; 
    
    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"]

通过Dockerfile创建一个镜像，替换成你自己的名字：

 docker build -t tomcat .

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使用 tomcat 镜像

运行镜像，生成容器

使用 docker run 命令运行镜像：

docker run --name my-tomcat -p 80801:8080 -v $PWD/webapps/test:/usr/local/tomcat/webapps/test -d tomcat  

命令说明

-p 8080:8080：将主机的 8081 端口映射到容器的 8080 端口

-v $PWD/webapps/test:/usr/local/tomcat/webapps/test：将主机中当前目录下的 /webapps/test 挂载到容器的/test

查看容器启动情况：

查看容器中 tomcat 的启动日志：

docker logs -f my-tomcat

通过浏览器访问 tomcat：

URL：http://个人机器IP:8081

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PS：

参考：https://www.runoob.com/docker/docker-install-tomcat.html