[root@docker43 ~]# docker pull alpine
Using default tag: latest
Trying to pull repository docker.io/library/alpine ...
latest: Pulling from docker.io/library/alpine
4fe2ade4980c: Pull complete
Digest: sha256:621c2f39f8133acb8e64023a94dbdf0d5ca81896102b9e57c0dc184cadaf5528
Status: Downloaded newer image for docker.io/alpine:latest
[root@docker43 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/alpine latest 196d12cf6ab1 3 weeks ago 4.41 MB 

[root@docker43 ~]# cd /opt/
[root@docker43 opt]# mkdir -p alpine_jre && cd alpine_jre && touch Dockerfile
[root@docker43 alpine_jre]# ll
总用量 0
-rw-r--r-- 1 root root 0 10月 6 17:39 Dockerfile 

# 基础镜像
FROM alpine
 
# 作者信息
MAINTAINER JRE Docker Maintainers "1024331014@qq.com"
 
# 修改源
RUN echo "http://mirrors.aliyun.com/alpine/latest-stable/main/" > /etc/apk/repositories && \
  echo "http://mirrors.aliyun.com/alpine/latest-stable/community/" >> /etc/apk/repositories
 
# 安装需要的软件
RUN apk update && \
  apk add --no-cache ca-certificates && \
  apk add --no-cache curl bash tree tzdata && \
  cp -rf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 
# 定义环境变量
ENV PATH /usr/local/bin:${PATH}
 
# 安装JRE
RUN apk add --nocache openjdk8-jre-base && \
  rm -rf /var/cache/apk/*
 
RUN { \
    echo '#!/bin/sh'; \
    echo 'set -e'; \
    echo; \
    echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; \
   } > /usr/local/bin/docker-java-home \
  && chmod +x /usr/local/bin/docker-java-home
 
ENV JAVA_HOME /usr/lib/jvm/default-jvm
ENV PATH ${PATH}:${JAVA_HOME}/bin:${JAVA_HOME}/jre/bin
ENV JAVA_VERSION 8u71
ENV JAVA_ALPINE_VERSION 8.171.11-r0
RUN set -x \
  \
  && apk add --no-cache \
  \
  openjdk8-jre="$JAVA_ALPINE_VERSION" 

[root@docker43 alpine_jre]# docker build -t alpine_jre . 

[root@docker43 alpine_jre]# docker images
REPOSITORY     TAG         IMAGE ID      CREATED       SIZE
alpine_jre     latest       614bc57ab66e    33 seconds ago   91.1 MB
docker.io/alpine  latest       196d12cf6ab1    3 weeks ago     4.41 MB 

[root@docker43 ~]# cd /opt/
[root@docker43 opt]# mkdir -p jre_tomcat && cd jre_tomcat && touch Dockerfile
[root@docker43 jre_tomcat]# ll
总用量 0
-rw-r--r-- 1 root root 0 10月 6 17:46 Dockerfile 

#基础镜像
FROM alpine_jre
 
# 作者信息
MAINTAINER tomcat Docker Maintainers "1024331014@qq.com"
 
# 定义tomcat变量(如果有其他的可以在这里加)
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
 
RUN apk add --no-cache gnupg
 
# see http://archive.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
RUN set -ex; \
    for key in $GPG_KEYS; do \
        gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
    done
 
# 定义tomcat版本
ENV TOMCAT_MAJOR 8
ENV TOMCAT_VERSION 8.0.53
 
# 下载
# https://issues.apache.org/jira/browse/INFRA-8753?focusedCommentId=14735394#comment-14735394
ENV TOMCAT_TGZ_URL https://www.apache.org/dyn/closer.cgi?action=download&filename=tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz
# not all the mirrors actually carry the .asc files :'(
ENV TOMCAT_ASC_URL http://archive.apache.org/dist/tomcat/tomcat-$TOMCAT_MAJOR/v$TOMCAT_VERSION/bin/apache-tomcat-$TOMCAT_VERSION.tar.gz.asc
 
# 安装
RUN set -x \
    \
    && apk add --no-cache --virtual .fetch-deps \
        ca-certificates \
        tar \
        openssl \
    && wget -O tomcat.tar.gz "$TOMCAT_TGZ_URL" \
    && wget -O tomcat.tar.gz.asc "$TOMCAT_ASC_URL" \
    && 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 \
    && apk add --no-cache --virtual .native-build-deps \
        apr-dev \
        dpkg-dev dpkg \
        gcc \
        libc-dev \
        make \
        "openjdk${JAVA_VERSION%%[-~bu]*}"="$JAVA_ALPINE_VERSION" \
        openssl-dev \
    && ( \
        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$(getconf _NPROCESSORS_ONLN) \
        && make install \
    ) \
    && runDeps="$( \
        scanelf --needed --nobanner --recursive "$TOMCAT_NATIVE_LIBDIR" \
            | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
            | sort -u \
            | xargs -r apk info --installed \
            | sort -u \
    )" \
    && apk add --virtual .tomcat-native-rundeps $runDeps \
    && apk del .fetch-deps .native-build-deps \
    && rm -rf "$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
 
# 开发8080端口
EXPOSE 8080
# 执行命令
CMD ["catalina.sh", "run"] 

[root@docker43 jre_tomcat]# docker build -t tomcat:1.0 . 

[root@docker43 jre_tomcat]# docker images
REPOSITORY     TAG         IMAGE ID      CREATED       SIZE
tomcat       1.0         64c9cec4375d    7 seconds ago    124 MB
alpine_jre     latest       614bc57ab66e    8 minutes ago    91.1 MB
docker.io/alpine  latest       196d12cf6ab1    3 weeks ago     4.41 MB 

[root@docker43 ~]# cd /opt/
[root@docker43 opt]# mkdir tomcat_web && cd tomcat_web && touch Dockerfile && touch start.sh
[root@docker43 tomcat_web]# ll
总用量 0
-rw-r--r-- 1 root root 0 10月 6 17:53 Dockerfile
-rw-r--r-- 1 root root 0 10月 6 17:53 start.sh 

#!/bin/sh
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
 
# -----------------------------------------------------------------------------
# Control Script for the CATALINA Server
#
# Environment Variable Prerequisites
#
#  Do not set the variables in this script. Instead put them into a script
#  setenv.sh in CATALINA_BASE/bin to keep your customizations separate.
#
#  CATALINA_HOME  May point at your Catalina "build" directory.
#
#  CATALINA_BASE  (Optional) Base directory for resolving dynamic portions
#          of a Catalina installation. If not present, resolves to
#          the same directory that CATALINA_HOME points to.
#
#  CATALINA_OUT  (Optional) Full path to a file where stdout and stderr
#          will be redirected.
#          Default is $CATALINA_BASE/logs/catalina.out
#
#  CATALINA_OPTS  (Optional) Java runtime options used when the "start",
#          "run" or "debug" command is executed.
#          Include here and not in JAVA_OPTS all options, that should
#          only be used by Tomcat itself, not by the stop process,
#          the version command etc.
#          Examples are heap size, GC logging, JMX ports etc.
#
#  CATALINA_TMPDIR (Optional) Directory path location of temporary directory
#          the JVM should use (java.io.tmpdir). Defaults to
#          $CATALINA_BASE/temp.
#
#  JAVA_HOME    Must point at your Java Development Kit installation.
#          Required to run the with the "debug" argument.
#
#  JRE_HOME    Must point at your Java Runtime installation.
#          Defaults to JAVA_HOME if empty. If JRE_HOME and JAVA_HOME
#          are both set, JRE_HOME is used.
#
#  JAVA_OPTS    (Optional) Java runtime options used when any command
#          is executed.
#          Include here and not in CATALINA_OPTS all options, that
#          should be used by Tomcat and also by the stop process,
#          the version command etc.
#          Most options should go into CATALINA_OPTS.
#
#  JAVA_ENDORSED_DIRS (Optional) Lists of of colon separated directories
#          containing some jars in order to allow replacement of APIs
#          created outside of the JCP (i.e. DOM and SAX from W3C).
#          It can also be used to update the XML parser implementation.
#          Defaults to $CATALINA_HOME/endorsed.
#
#  JPDA_TRANSPORT (Optional) JPDA transport used when the "jpda start"
#          command is executed. The default is "dt_socket".
#
#  JPDA_ADDRESS  (Optional) Java runtime options used when the "jpda start"
#          command is executed. The default is localhost:8000.
#
#  JPDA_SUSPEND  (Optional) Java runtime options used when the "jpda start"
#          command is executed. Specifies whether JVM should suspend
#          execution immediately after startup. Default is "n".
#
#  JPDA_OPTS    (Optional) Java runtime options used when the "jpda start"
#          command is executed. If used, JPDA_TRANSPORT, JPDA_ADDRESS,
#          and JPDA_SUSPEND are ignored. Thus, all required jpda
#          options MUST be specified. The default is:
#
#          -agentlib:jdwp=transport=$JPDA_TRANSPORT,
#            address=$JPDA_ADDRESS,server=y,suspend=$JPDA_SUSPEND
#
#  JSSE_OPTS    (Optional) Java runtime options used to control the TLS
#          implementation when JSSE is used. Default is:
#          "-Djdk.tls.ephemeralDHKeySize=2048"
#
#  CATALINA_PID  (Optional) Path of the file which should contains the pid
#          of the catalina startup java process, when start (fork) is
#          used
#
#  LOGGING_CONFIG (Optional) Override Tomcat's logging config file
#          Example (all one line)
#          LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/logging.properties"
#
#  LOGGING_MANAGER (Optional) Override Tomcat's logging manager
#          Example (all one line)
#          LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"
#
#  USE_NOHUP    (Optional) If set to the string true the start command will
#          use nohup so that the Tomcat process will ignore any hangup
#          signals. Default is "false" unless running on HP-UX in which
#          case the default is "true"
# -----------------------------------------------------------------------------
 
# OS specific support. $var _must_ be set to either true or false.
cygwin=false
darwin=false
os400=false
hpux=false
case "`uname`" in
CYGWIN*) cygwin=true;;
Darwin*) darwin=true;;
OS400*) os400=true;;
HP-UX*) hpux=true;;
esac
 
# resolve links - $0 may be a softlink
PRG="$0"
 
while [ -h "$PRG" ]; do
 ls=`ls -ld "$PRG"`
 link=`expr "$ls" : '.*-> \(.*\)$'`
 if expr "$link" : '/.*' > /dev/null; then
  PRG="$link"
 else
  PRG=`dirname "$PRG"`/"$link"
 fi
done
 
# Get standard environment variables
PRGDIR=`dirname "$PRG"`
 
# Only set CATALINA_HOME if not already set
[ -z "$CATALINA_HOME" ] && CATALINA_HOME=`cd "$PRGDIR/.." >/dev/null; pwd`
 
# Copy CATALINA_BASE from CATALINA_HOME if not already set
[ -z "$CATALINA_BASE" ] && CATALINA_BASE="$CATALINA_HOME"
 
# Ensure that any user defined CLASSPATH variables are not used on startup,
# but allow them to be specified in setenv.sh, in rare case when it is needed.
CLASSPATH=
 
if [ -r "$CATALINA_BASE/bin/setenv.sh" ]; then
 . "$CATALINA_BASE/bin/setenv.sh"
elif [ -r "$CATALINA_HOME/bin/setenv.sh" ]; then
 . "$CATALINA_HOME/bin/setenv.sh"
fi
 
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin; then
 [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
 [ -n "$JRE_HOME" ] && JRE_HOME=`cygpath --unix "$JRE_HOME"`
 [ -n "$CATALINA_HOME" ] && CATALINA_HOME=`cygpath --unix "$CATALINA_HOME"`
 [ -n "$CATALINA_BASE" ] && CATALINA_BASE=`cygpath --unix "$CATALINA_BASE"`
 [ -n "$CLASSPATH" ] && CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
 
# Ensure that neither CATALINA_HOME nor CATALINA_BASE contains a colon
# as this is used as the separator in the classpath and Java provides no
# mechanism for escaping if the same character appears in the path.
case $CATALINA_HOME in
 *:*) echo "Using CATALINA_HOME:  $CATALINA_HOME";
    echo "Unable to start as CATALINA_HOME contains a colon (:) character";
    exit 1;
esac
case $CATALINA_BASE in
 *:*) echo "Using CATALINA_BASE:  $CATALINA_BASE";
    echo "Unable to start as CATALINA_BASE contains a colon (:) character";
    exit 1;
esac
 
# For OS400
if $os400; then
 # Set job priority to standard for interactive (interactive - 6) by using
 # the interactive priority - 6, the helper threads that respond to requests
 # will be running at the same priority as interactive jobs.
 COMMAND='chgjob job('$JOBNAME') runpty(6)'
 system $COMMAND
 
 # Enable multi threading
 export QIBM_MULTI_THREADED=Y
fi
 
# Get standard Java environment variables
if $os400; then
 # -r will Only work on the os400 if the files are:
 # 1. owned by the user
 # 2. owned by the PRIMARY group of the user
 # this will not work if the user belongs in secondary groups
 . "$CATALINA_HOME"/bin/setclasspath.sh
else
 if [ -r "$CATALINA_HOME"/bin/setclasspath.sh ]; then
  . "$CATALINA_HOME"/bin/setclasspath.sh
 else
  echo "Cannot find $CATALINA_HOME/bin/setclasspath.sh"
  echo "This file is needed to run this program"
  exit 1
 fi
fi
 
# Add on extra jar files to CLASSPATH
if [ ! -z "$CLASSPATH" ] ; then
 CLASSPATH="$CLASSPATH":
fi
CLASSPATH="$CLASSPATH""$CATALINA_HOME"/bin/bootstrap.jar
 
if [ -z "$CATALINA_OUT" ] ; then
 CATALINA_OUT="$CATALINA_BASE"/logs/catalina.out
fi
 
if [ -z "$CATALINA_TMPDIR" ] ; then
 # Define the java.io.tmpdir to use for Catalina
 CATALINA_TMPDIR="$CATALINA_BASE"/temp
fi
 
# Add tomcat-juli.jar to classpath
# tomcat-juli.jar can be over-ridden per instance
if [ -r "$CATALINA_BASE/bin/tomcat-juli.jar" ] ; then
 CLASSPATH=$CLASSPATH:$CATALINA_BASE/bin/tomcat-juli.jar
else
 CLASSPATH=$CLASSPATH:$CATALINA_HOME/bin/tomcat-juli.jar
fi
 
# Bugzilla 37848: When no TTY is available, don't output to console
have_tty=0
if [ "`tty`" != "not a tty" ]; then
  have_tty=1
fi
 
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
 JAVA_HOME=`cygpath --absolute --windows "$JAVA_HOME"`
 JRE_HOME=`cygpath --absolute --windows "$JRE_HOME"`
 CATALINA_HOME=`cygpath --absolute --windows "$CATALINA_HOME"`
 CATALINA_BASE=`cygpath --absolute --windows "$CATALINA_BASE"`
 CATALINA_TMPDIR=`cygpath --absolute --windows "$CATALINA_TMPDIR"`
 CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
 JAVA_ENDORSED_DIRS=`cygpath --path --windows "$JAVA_ENDORSED_DIRS"`
fi
 
if [ -z "$JSSE_OPTS" ] ; then
 JSSE_OPTS="-Djdk.tls.ephemeralDHKeySize=2048"
fi
JAVA_OPTS="$JAVA_OPTS $JSSE_OPTS"
 
# Register custom URL handlers
# Do this here so custom URL handles (specifically 'war:...') can be used in the security policy
JAVA_OPTS="$JAVA_OPTS -Djava.protocol.handler.pkgs=org.apache.catalina.webresources"
 
# Set juli LogManager config file if it is present and an override has not been issued
if [ -z "$LOGGING_CONFIG" ]; then
 if [ -r "$CATALINA_BASE"/conf/logging.properties ]; then
  LOGGING_CONFIG="-Djava.util.logging.config.file=$CATALINA_BASE/conf/logging.properties"
 else
  # Bugzilla 45585
  LOGGING_CONFIG="-Dnop"
 fi
fi
 
if [ -z "$LOGGING_MANAGER" ]; then
 LOGGING_MANAGER="-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"
fi
 
# Uncomment the following line to make the umask available when using the
# org.apache.catalina.security.SecurityListener
#JAVA_OPTS="$JAVA_OPTS -Dorg.apache.catalina.security.SecurityListener.UMASK=`umask`"
 
if [ -z "$USE_NOHUP" ]; then
  if $hpux; then
    USE_NOHUP="true"
  else
    USE_NOHUP="false"
  fi
fi
unset _NOHUP
if [ "$USE_NOHUP" = "true" ]; then
  _NOHUP=nohup
fi
 
# ----- Execute The Requested Command -----------------------------------------
 
# Bugzilla 37848: only output this if we have a TTY
if [ $have_tty -eq 1 ]; then
 echo "Using CATALINA_BASE:  $CATALINA_BASE"
 echo "Using CATALINA_HOME:  $CATALINA_HOME"
 echo "Using CATALINA_TMPDIR: $CATALINA_TMPDIR"
 if [ "$1" = "debug" ] ; then
  echo "Using JAVA_HOME:    $JAVA_HOME"
 else
  echo "Using JRE_HOME:    $JRE_HOME"
 fi
 echo "Using CLASSPATH:    $CLASSPATH"
 if [ ! -z "$CATALINA_PID" ]; then
  echo "Using CATALINA_PID:  $CATALINA_PID"
 fi
fi
 
if [ "$1" = "jpda" ] ; then
 if [ -z "$JPDA_TRANSPORT" ]; then
  JPDA_TRANSPORT="dt_socket"
 fi
 if [ -z "$JPDA_ADDRESS" ]; then
  JPDA_ADDRESS="localhost:8000"
 fi
 if [ -z "$JPDA_SUSPEND" ]; then
  JPDA_SUSPEND="n"
 fi
 if [ -z "$JPDA_OPTS" ]; then
  JPDA_OPTS="-agentlib:jdwp=transport=$JPDA_TRANSPORT,address=$JPDA_ADDRESS,server=y,suspend=$JPDA_SUSPEND"
 fi
 CATALINA_OPTS="$JPDA_OPTS $CATALINA_OPTS"
 shift
fi
 
if [ "$1" = "debug" ] ; then
 if $os400; then
  echo "Debug command not available on OS400"
  exit 1
 else
  shift
  if [ "$1" = "-security" ] ; then
   if [ $have_tty -eq 1 ]; then
    echo "Using Security Manager"
   fi
   shift
   exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
    -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
    -sourcepath "$CATALINA_HOME"/../../java \
    -Djava.security.manager \
    -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
    -Dcatalina.base="$CATALINA_BASE" \
    -Dcatalina.home="$CATALINA_HOME" \
    -Djava.io.tmpdir="$CATALINA_TMPDIR" \
    org.apache.catalina.startup.Bootstrap "$@" start
  else
   exec "$_RUNJDB" "$LOGGING_CONFIG" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
    -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
    -sourcepath "$CATALINA_HOME"/../../java \
    -Dcatalina.base="$CATALINA_BASE" \
    -Dcatalina.home="$CATALINA_HOME" \
    -Djava.io.tmpdir="$CATALINA_TMPDIR" \
    org.apache.catalina.startup.Bootstrap "$@" start
  fi
 fi
 
elif [ "$1" = "run" ]; then
 
 shift
 if [ "$1" = "-security" ] ; then
  if [ $have_tty -eq 1 ]; then
   echo "Using Security Manager"
  fi
  shift
  eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
   -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \
   -Djava.security.manager \
   -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \
   -Dcatalina.base="\"$CATALINA_BASE\"" \
   -Dcatalina.home="\"$CATALINA_HOME\"" \
   -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \
   org.apache.catalina.startup.Bootstrap "$@" start
 else
  eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
   -Djava.endorsed.dirs="\"$JAVA_ENDORSED_DIRS\"" -classpath "\"$CLASSPATH\"" \
   -Dcatalina.base="\"$CATALINA_BASE\"" \
   -Dcatalina.home="\"$CATALINA_HOME\"" \
   -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \
   org.apache.catalina.startup.Bootstrap "$@" start \
   >> "$CATALINA_OUT" 2>&1 
 fi
fi 

# 基础镜像
FROM tomcat:1.0
 
# 创建项目目录和日志目录，这个是要在宿主机-v挂载的
RUN set -x \
  &&mkdir -p /Webs/logs \
  \
  &&rm -rf /usr/local/tomcat/logs \
  \
  &&ln -sf /Webs/logs /usr/local/tomcat/logs
 
# 将启动文件copy到容器
COPY start.sh /usr/local/tomcat/bin/
 
# 给容器的启动脚本权限
RUN chmod +x /usr/local/tomcat/bin/start.sh
 
# 开放8080端口
EXPOSE 8080
 
# 运行tomcat
CMD ["start.sh","run"] 

[root@docker43 tomcat_web]# docker build -t tomcat_web:v1 . 

[root@docker43 tomcat_web]# docker images
REPOSITORY     TAG         IMAGE ID      CREATED       SIZE
tomcat_web     v1         b3651c50a7b5    26 seconds ago   124 MB
tomcat       1.0         64c9cec4375d    6 minutes ago    124 MB
alpine_jre     latest       614bc57ab66e    14 minutes ago   91.1 MB
docker.io/alpine  latest       196d12cf6ab1    3 weeks ago     4.41 MB 

[root@docker43 ~]# cd /home/
[root@docker43 home]# mkdir test.tomcat.com && cd test.tomcat.com
[root@docker43 test.tomcat.com]# touch server.xml # 配置文件
[root@docker43 test.tomcat.com]# mkdir logs    # 日志目录
[root@docker43 test.tomcat.com]# mkdir wwwroot   # 项目主目录(要是修改了记得也在server.xml进行修改)
[root@docker43 test.tomcat.com]# ll
总用量 0
drwxr-xr-x 2 root root 6 10月 6 18:03 logs
-rw-r--r-- 1 root root 0 10月 6 18:02 server.xml
drwxr-xr-x 2 root root 6 10月 6 18:03 wwwroot 

  <?xml version='1.0' encoding='utf-8'?>
  <Server port="8005" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
 
  <GlobalNamingResources>
 
   <Resource name="UserDatabase" auth="Container"
        type="org.apache.catalina.UserDatabase"
        description="User database that can be updated and saved"
        factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
        pathname="conf/tomcat-users.xml" />
  </GlobalNamingResources>
 
  <Service name="Catalina">
   <Connector port="8080" protocol="org.apache.coyote.http11.Http11AprProtocol"
        connectionTimeout="20000"
        maxThreads="1000" 
        minSpareThreads="100" 
        redirectPort="8443" URIEncoding="UTF-8"/>
   <Connector port="8009" maxThreads="1000" minSpareThreads="100" protocol="AJP/1.3" redirectPort="8443" />
   <Engine name="Catalina" defaultHost="localhost">
    <Realm className="org.apache.catalina.realm.LockOutRealm">
    <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>
    </Realm>
 
    <Host name="localhost" appBase="/Webs/wwwroot" unpackWARs="true" autoDeploy="true">
     <Context path="" docBase="/Webs/wwwroot" reloadable="true" />
     <Valve className="org.apache.catalina.valves.AccessLogValve" 
     directory="logs" 
     prefix="localhost__access_log" 
     suffix=".txt" 
     pattern="%{X-Real-IP}i %l %u %t &quot;%r&quot; %s %b" />
 
    </Host>
 
   </Engine>
  </Service>
 </Server>

[root@docker43 test.tomcat.com]# cd wwwroot/
[root@docker43 wwwroot]# cat index.html 

[root@docker43 test.tomcat.com]# docker ps
CONTAINER ID    IMAGE        COMMAND         CREATED       STATUS       PORTS          NAMES
ab62045e0688    tomcat_web:v1    "start.sh run -con..."  2 seconds ago    Up 1 second     0.0.0.0:5081->8080/tcp  test.tomcat.com 

[root@docker43 test.tomcat.com]# curl 127.0.0.1:5081
成功了
[root@docker43 test.tomcat.com]#