ApiDemos™Docker Install Tomcat
Method#1: docker pull tomcat
Find the Tomcat image on Docker Hub:
You can check other versions of tomcat by Sort by, the default is the latest version tomcat:latest.
In addition, we can also use the docker search tomcat command in the console to see the available versions.
apidemos@apidemos:~/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]Here we pull the official mirror:
apidemos@apidemos:~/tomcat$ docker pull tomcatAfter waiting for the download to complete, we can check the REPOSITORY for the tomcat image in the local image list.
apidemos@apidemos:~/tomcat$ docker images|grep tomcat
tomcat latest 70f819d3d2d9 7 days ago 335.8 MBMethod#2: Build via Dockerfile
Create the Dockerfile
First, create the directory tomcat, which will be used to store the related stuff later.
apidemos@apidemos:~$ mkdir -p ~/tomcat/webapps ~/tomcat/logs ~/tomcat/confThe webapps directory will be mapped to the tomcat container configuration application directory.
The logs directory will be mapped to the tomcat container’s log directory.
The configuration files in the conf directory will be mapped to the configuration files of the tomcat container.
Go to the created tomcat directory and create the Dockerfile.
FROM openjdk:8-jre
ENV CATALINA_HOME /usr/local/tomcat
ENV PATH CATALINA_HOME/bin:PATH
RUN mkdir -p "CATALINA_HOME"
WORKDIRCATALINA_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}\n' 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/vTOMCAT_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/vTOMCAT_VERSION/bin/apache-tomcat-TOMCAT_VERSION.tar.gz \
https://www.apache.org/dist/tomcat/tomcat-TOMCAT_MAJOR/vTOMCAT_VERSION/bin/apache-tomcat-TOMCAT_VERSION.tar.gz \
https://archive.apache.org/dist/tomcat/tomcat-TOMCAT_MAJOR/vTOMCAT_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/vTOMCAT_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/vTOMCAT_VERSION/bin/apache-tomcat-TOMCAT_VERSION.tar.gz.asc \
https://www.apache.org/dist/tomcat/tomcat-TOMCAT_MAJOR/vTOMCAT_VERSION/bin/apache-tomcat-TOMCAT_VERSION.tar.gz.asc \
https://archive.apache.org/dist/tomcat/tomcat-TOMCAT_MAJOR/vTOMCAT_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 inGPG_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 inTOMCAT_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 inTOMCAT_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 "$nativeLines"; \
exit 1; \
fi
EXPOSE 8080
CMD ["catalina.sh", "run"]Create an image via Dockerfile, replacing it with your own name:
apidemos@apidemos:~/tomcat$ docker build -t tomcat .Once created, we can find the image we just created in our local list of mirrors –
apidemos@apidemos:~/tomcat$ docker images|grep tomcat
tomcat latest 70f819d3d2d9 7 days ago 335.8 MBUse tomcat image
Run the container
apidemos@apidemos:~/tomcatdocker run --name tomcat -p 8080:8080 -vPWD/test:/usr/local/tomcat/webapps/test -d tomcat
acb33fcb4beb8d7f1ebace6f50f5fc204b1dbe9d524881267aa715c61cf75320
apidemos@apidemos:~/tomcat$Command Description.
-p 8080:8080: Maps port 8080 of the host to port 8080 of the container.
-v $PWD/test:/usr/local/tomcat/webapps/test: Mount the test in the current directory of the host to /test of the container.
View container startup
apidemos@apidemos:~/tomcat$ docker ps
CONTAINER ID IMAGE COMMAND ... PORTS NAMES
acb33fcb4beb tomcat "catalina.sh run" ... 0.0.0.0:8080->8080/tcp tomcatAccessed through a browser:
