基于alpine用dockerfile创建的tomcat镜像

[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

我们是基于tomcat_web镜像进行创建容器的
首先我先在宿主机上创建个项目的目录(server.xml的配置文件拷贝改路径就能用)
[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 "%r" %s %b" />

      </Host>
         
    </Engine>
  </Service>
</Server>

在wwwroot中编写个测试页面
[root@docker43 test.tomcat.com]# cd wwwroot/
[root@docker43 wwwroot]# cat index.html 
成功了

docker run -tid  --restart=always --name test.tomcat.com  -p 5081:8080 -v /home/test.tomcat.com/:/Webs -m 2048m  --memory-swap=2048m  --cpu-shares=256  tomcat_web:v1 start.sh  run -config /Webs/server.xml

[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]#