Docker 安裝 Tomcat

方法一、通過 Dockerfile構建

創建Dockerfile

首先，創建目錄tomcat,用於存放後面的相關東西。

run@run:~$ mkdir -p ~/tomcat/webapps ~/tomcat/logs ~/tomcat/conf

webapps目錄將映射為tomcat容器配置的應用程序目錄

logs目錄將映射為tomcat容器的日誌目錄

conf目錄里的配置文件將映射為tomcat容器的配置文件

進入創建的tomcat目錄，創建Dockerfile

FROM java:8-jre
ENV CATALINA_HOME /usr/local/tomcat
ENV PATH $CATALINA_HOME/bin:$PATH
RUN 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 $OPENSSL_VERSION";
echo "Pin-Priority: 990"; } > /etc/apt/preferences.d/unstable-openssl
RUN apt-get update && apt-get install -y --no-install-recommends
libapr1
openssl="$OPENSSL_VERSION" && rm -rf /var/lib/apt/lists/*
# see https://www.apache.org/dist/tomcat/tomcat-8/KEYS
RUN 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 "$key";
done
ENV TOMCAT_MAJOR 8
ENV TOMCAT_VERSION 8.0.35
ENV TOMCAT_TGZ_URL https://www.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz
RUN 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 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"]

通過Dockerfile創建一個鏡像，替換成你自己的名字

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

創建完成後，我們可以在本地的鏡像列表裡查找到剛剛創建的鏡像

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

方法二、docker pull tomcat

查找Docker Hub上的tomcat鏡像

run@run:~/tomcat$ docker search tomcat
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
tomcat 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]

這裡我們拉取官方的鏡像

run@run:~/tomcat$ docker pull tomcat

等待下載完成後，我們就可以在本地鏡像列表裡查到REPOSITORY為tomcat的鏡像。

使用tomcat鏡像

運行容器

run@run:~/tomcat$ docker run --name tomcat -p 8080:8080 -v $PWD/test:/usr/local/tomcat/webapps/test -d tomcat
acb33fcb4beb8d7f1ebace6f50f5fc204b1dbe9d524881267aa715c61cf75320
run@run:~/tomcat$

命令說明：

-p 8080:8080：將容器的8080埠映射到主機的8080埠

-v $PWD/test:/usr/local/tomcat/webapps/test：將主機中當前目錄下的test掛載到容器的/test

查看容器啟動情況

run@run:~/tomcat$ docker ps
CONTAINER ID IMAGE COMMAND ... PORTS NAMES
acb33fcb4beb tomcat "catalina.sh run" ... 0.0.0.0:8080->8080/tcp tomcat

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