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C # tutorial
Create Dockerfile
First, create a directory tomcat, used to store back-related stuff.
w3resource@w3resource:~$ mkdir -p ~/tomcat/webapps ~/tomcat/logs ~/tomcat/conf
webapps directory will be mapped to the tomcat container configuration application directory
logs directory will be mapped to the tomcat container log directory
conf directory profile will be mapped to the profile tomcat container
Enter tomcat directory created, create 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 and following discussion ENV OPENSSL_VERSION 1.0.2h-1 RUN { \ echo 'deb http://ftp.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://downloads.apache.org/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 "$key"; \ done ENV TOMCAT_MAJOR 8 ENV TOMCAT_VERSION 8.0.35 RUN set -x \ \ && curl -fSL "$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 "$nativeLines"; \ exit 1; \ fi EXPOSE 8080 CMD ["catalina.sh", "run"]
Create a mirror through Dockerfile, replace it with your own name
w3resource@w3resource:~/tomcat$ docker build -t tomcat .
Once created, we can find the image you just created in the local mirror list
w3resource@w3resource:~/tomcat$ docker images|grep tomcat tomcat latest 70f819d3d2d9 7 days ago 335.8 MB
Find tomcat on the mirror Docker Hub
w3resource@w3resource:~/tomcat$ docker search tomcat NAME DESCRIPTION STARS OFFICIAL AUTOMATED tomcat Apache Tomcat is an open source implementa/en. 744 [OK] dordoka/tomcat Ubuntu 14.04, Oracle JDK 8 and Tomcat 8 ba/en. 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/en. 6 [OK] andreptb/tomcat Debian Jessie based image with Apache Tomc/en. 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/en. 1 [OK]
Here we pull the official mirrors
w3resource@w3resource:~/tomcat$ docker pull tomcat
Wait for the download is complete, we can find a tomcat REPOSITORY mirrored in local mirror list.
w3resource@w3resource:~/tomcat$ docker run --name tomcat -p 8080:8080 -v $PWD/test:/usr/local/tomcat/webapps/test -d tomcat acb33fcb4beb8d7f1ebace6f50f5fc204b1dbe9d524881267aa715c61cf75320 w3resource@w3resource:~/tomcat$
Command Description:
-p 8080: 8080: 8080 will be mapped to the host port container port 8080
-v $ PWD / test: / usr / local / tomcat / webapps / test: the test host in the current directory is mounted to the container / test
Check the container starts circumstances
w3resource@w3resource:~/tomcat$ docker ps CONTAINER ID IMAGE COMMAND /en. PORTS NAMES acb33fcb4beb tomcat "catalina.sh run" /en. 0.0.0.0:8080->8080/tcp tomcat
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