Docker 安装 Tomcat

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方法一、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。

runoob@runoob:~$ 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 java:8-jreENV CATALINA_HOME /usr/local/tomcatENV PATH $CATALINA_HOME/bin:$PATHRUN mkdir -p "$CATALINA_HOME"WORKDIR $CATALINA_HOME# runtime dependencies for Tomcat Native Libraries# Tomcat Native 1.2+ requires a newer version of OpenSSL than debian:jessie has available (1.0.2g+)# see http://tomcat.10.x6.nabble.com/VOTE-Release-Apache-Tomcat-8-0-32-tp5046007p5046024.html (and following discussion)ENV OPENSSL_VERSION 1.0.2h-1RUN { \                echo 'deb http://httpredir.debian.org/debian unstable main'; \        } > /etc/apt/sources.list.d/unstable.list \        && { \# add a negative "Pin-Priority" so that we never ever get packages from unstable unless we explicitly request them                echo 'Package: *'; \                echo 'Pin: release a=unstable'; \                echo 'Pin-Priority: -10'; \                echo; \# except OpenSSL, which is the reason we're here                echo 'Package: openssl libssl*'; \                echo "Pin: version $OPENSSL_VERSION"; \                echo 'Pin-Priority: 990'; \        } > /etc/apt/preferences.d/unstable-opensslRUN apt-get update && apt-get install -y --no-install-recommends \                libapr1 \                openssl="$OPENSSL_VERSION" \        && rm -rf /var/lib/apt/lists/*# see https://www.apache.org/dist/tomcat/tomcat-8/KEYSRUN set -ex \        && for key in \                05AB33110949707C93A279E3D3EFE6B686867BA6 \                07E48665A34DCAFAE522E5E6266191C37C037D42 \                47309207D818FFD8DCD3F83F1931D684307A10A5 \                541FBE7D8F78B25E055DDEE13C370389288584E7 \                61B832AC2F1C5A90F0F9B00A1C506407564C17A3 \                79F7026C690BAA50B92CD8B66A3AD3F4F22C4FED \                9BA44C2621385CB966EBA586F72C284D731FABEE \                A27677289986DB50844682F8ACB77FC2E86E29AC \                A9C5DF4D22E99998D9875A5110C01C5A2F6059E7 \                DCFD35E0BF8CA7344752DE8B6FB21E8933C60243 \                F3A04C595DB5B6A5F1ECA43E3B7BBB100D811BBE \                F7DA48BB64BCB84ECBA7EE6935CD23C10D498E23 \        ; do \                gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \        doneENV TOMCAT_MAJOR 8ENV TOMCAT_VERSION 8.0.35ENV TOMCAT_TGZ_URL https://www.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gzRUN set -x \        \        && curl -fSL "$TOMCAT_TGZ_URL" -o tomcat.tar.gz \        && curl -fSL "$TOMCAT_TGZ_URL.asc" -o tomcat.tar.gz.asc \        && 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* \        \        && nativeBuildDir="$(mktemp -d)" \        && tar -xvf bin/tomcat-native.tar.gz -C "$nativeBuildDir" --strip-components=1 \        && nativeBuildDeps=" \                gcc \                libapr1-dev \                libssl-dev \                make \                openjdk-${JAVA_VERSION%%[-~bu]*}-jdk=$JAVA_DEBIAN_VERSION \        " \        && apt-get update && apt-get install -y --no-install-recommends $nativeBuildDeps && rm -rf /var/lib/apt/lists/* \        && ( \                export CATALINA_HOME="$PWD" \                && cd "$nativeBuildDir/native" \                && ./configure \                        --libdir=/usr/lib/jni \                        --prefix="$CATALINA_HOME" \                        --with-apr=/usr/bin/apr-1-config \                        --with-java-home="$(docker-java-home)" \                        --with-ssl=yes \                && make -j$(nproc) \                && make install \        ) \        && apt-get purge -y --auto-remove $nativeBuildDeps \        && rm -rf "$nativeBuildDir" \        && rm bin/tomcat-native.tar.gz# verify Tomcat Native is working properlyRUN 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; \        fiEXPOSE 8080CMD ["catalina.sh", "run"]

通过Dockerfile创建一个镜像，替换成你自己的名字

runoob@runoob:~/tomcat$ docker build -t tomcat .

创建完成后，我们可以在本地的镜像列表里查找到刚刚创建的镜像

runoob@runoob:~/tomcat$ docker images|grep tomcattomcat              latest              70f819d3d2d9        7 days ago          335.8 MB

方法二、docker pull tomcat

查找Docker Hub上的tomcat镜像

runoob@runoob:~/tomcat$ docker search tomcatNAME                       DESCRIPTION                                     STARS     OFFICIAL   AUTOMATEDtomcat                     Apache Tomcat is an open source implementa...   744       [OK]       dordoka/tomcat             Ubuntu 14.04, Oracle JDK 8 and Tomcat 8 ba...   19                   [OK]consol/tomcat-7.0          Tomcat 7.0.57, 8080, "admin/admin"              16                   [OK]consol/tomcat-8.0          Tomcat 8.0.15, 8080, "admin/admin"              14                   [OK]cloudesire/tomcat          Tomcat server, 6/7/8                            8                    [OK]davidcaste/alpine-tomcat   Apache Tomcat 7/8 using Oracle Java 7/8 wi...   6                    [OK]andreptb/tomcat            Debian Jessie based image with Apache Tomc...   4                    [OK]kieker/tomcat                                                              2                    [OK]fbrx/tomcat                Minimal Tomcat image based on Alpine Linux      2                    [OK]jtech/tomcat               Latest Tomcat production distribution on l...   1                    [OK]

这里我们拉取官方的镜像

runoob@runoob:~/tomcat$ 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。

使用tomcat镜像

运行容器

runoob@runoob:~/tomcat$ docker run --name tomcat -p 8080:8080 -v $PWD/test:/usr/local/tomcat/webapps/test -d tomcat  acb33fcb4beb8d7f1ebace6f50f5fc204b1dbe9d524881267aa715c61cf75320runoob@runoob:~/tomcat$

命令说明：

-p 8080:8080：将容器的8080端口映射到主机的8080端口

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

查看容器启动情况

runoob@runoob:~/tomcat$ docker ps CONTAINER ID    IMAGE     COMMAND               ... PORTS                    NAMESacb33fcb4beb    tomcat    "catalina.sh run"     ... 0.0.0.0:8080->8080/tcp   tomcat

通过浏览器访问

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