From cc05f49d9dc420a727d77eee47acb1e9e1d66287 Mon Sep 17 00:00:00 2001 From: root Date: Tue, 14 Jul 2020 20:54:37 +0300 Subject: [PATCH] Added Zabbix Java Gateway based on RHEL image --- java-gateway/rhel/.dockerignore | 1 + java-gateway/rhel/Dockerfile | 110 ++++++ java-gateway/rhel/README.md | 125 +++++++ java-gateway/rhel/build.sh | 1 + .../zabbix/zabbix_java_gateway_logback.xml | 15 + .../rhel/conf/usr/sbin/zabbix_java_gateway | 27 ++ java-gateway/rhel/docker-entrypoint.sh | 46 +++ java-gateway/rhel/licenses/gpl-2.0.txt | 339 ++++++++++++++++++ 8 files changed, 664 insertions(+) create mode 100644 java-gateway/rhel/.dockerignore create mode 100644 java-gateway/rhel/Dockerfile create mode 100644 java-gateway/rhel/README.md create mode 120000 java-gateway/rhel/build.sh create mode 100644 java-gateway/rhel/conf/etc/zabbix/zabbix_java_gateway_logback.xml create mode 100755 java-gateway/rhel/conf/usr/sbin/zabbix_java_gateway create mode 100755 java-gateway/rhel/docker-entrypoint.sh create mode 100644 java-gateway/rhel/licenses/gpl-2.0.txt diff --git a/java-gateway/rhel/.dockerignore b/java-gateway/rhel/.dockerignore new file mode 100644 index 000000000..88a84e55a --- /dev/null +++ b/java-gateway/rhel/.dockerignore @@ -0,0 +1 @@ +build.sh diff --git a/java-gateway/rhel/Dockerfile b/java-gateway/rhel/Dockerfile new file mode 100644 index 000000000..21633dbe3 --- /dev/null +++ b/java-gateway/rhel/Dockerfile @@ -0,0 +1,110 @@ +FROM registry.access.redhat.com/ubi8/ubi +MAINTAINER Alexey Pustovalov + +ARG MAJOR_VERSION=5.0 +ARG RELEASE=2 +ARG ZBX_VERSION=${MAJOR_VERSION}.2 + +ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git +ENV ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES} + +LABEL name="zabbix/zabbix-java-gateway-50" \ + maintainer="alexey.pustovalov@zabbix.com" \ + vendor="Zabbix LLC" \ + version="${MAJOR_VERSION}" \ + release="${RELEASE}" \ + summary="Zabbix Java Gateway" \ + description="Zabbix Java Gateway performs native support for monitoring JMX applications" \ + url="https://www.zabbix.com/" \ + run="docker run --name zabbix-java-gateway -p 10052:10052 -d registry.connect.redhat.com/zabbix/zabbix-java-gateway-50:${ZBX_VERSION}" \ + io.k8s.description="Zabbix Java Gateway performs native support for monitoring JMX applications" \ + io.k8s.display-name="Zabbix Java Gateway" \ + io.openshift.expose-services="10052:10052" \ + io.openshift.tags="gateway,zabbix-java,java" \ + org.label-schema.name="zabbix-java-gateway-rhel" \ + org.label-schema.vendor="Zabbix LLC" \ + org.label-schema.url="https://zabbix.com/" \ + org.label-schema.description="Zabbix Java Gateway performs native support for monitoring JMX applications" \ + org.label-schema.vcs-ref="${VCS_REF}" \ + org.label-schema.build-date="${BUILD_DATE}" \ + org.label-schema.schema-version="1.0" \ + org.label-schema.license="GPL v2.0" \ + org.label-schema.usage="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \ + org.label-schema.version="${ZBX_VERSION}" \ + org.label-schema.vcs-url="${ZBX_SOURCES}" \ + org.label-schema.docker.cmd="docker run --name zabbix-java-gateway -p 10052:10052 -d registry.connect.redhat.com/zabbix/zabbix-java-gateway-50:${ZBX_VERSION}" + +STOPSIGNAL SIGTERM + +COPY ["licenses", "/licenses"] + +RUN set -eux && INSTALL_PKGS="bash \ + java-1.8.0-openjdk-headless" && \ + REPOLIST="rhel-8-for-x86_64-baseos-rpms,rhel-8-for-x86_64-appstream-rpms" && \ + dnf -y update-minimal --disablerepo "*" --enablerepo ubi-8-baseos --setopt=tsflags=nodocs \ + --security --sec-severity=Important --sec-severity=Critical && \ + dnf -y install --disablerepo "*" --enablerepo "${REPOLIST}" --setopt=install_weak_deps=False --best \ + --setopt=tsflags=nodocs ${INSTALL_PKGS} && \ + groupadd -g 1995 --system zabbix && \ + adduser -r --shell /sbin/nologin \ + -g zabbix -G root \ + -d /var/lib/zabbix/ -u 1997 \ + zabbix && \ + mkdir -p /etc/zabbix/ && \ + dnf -y clean all && \ + rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \ + rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki + +COPY ["conf/etc/", "/etc/"] + +RUN set -eux && INSTALL_PKGS="autoconf \ + automake \ + pkgconf \ + git \ + gcc \ + make \ + java-1.8.0-openjdk-devel" && \ + REPOLIST="rhel-8-for-x86_64-baseos-rpms,rhel-8-for-x86_64-appstream-rpms" && \ + dnf -y install --disablerepo "*" --enablerepo "${REPOLIST}" --setopt=install_weak_deps=False --best \ + --setopt=tsflags=nodocs ${INSTALL_PKGS} && \ + cd /tmp/ && \ + git clone ${ZBX_SOURCES} --branch ${ZBX_VERSION} --depth 1 --single-branch zabbix-${ZBX_VERSION} && \ + cd /tmp/zabbix-${ZBX_VERSION} && \ + zabbix_revision=`git rev-parse --short HEAD` && \ + sed -i "s/{ZABBIX_REVISION}/$zabbix_revision/g" include/version.h && \ + sed -i "s/{ZABBIX_REVISION}/$zabbix_revision/g" src/zabbix_java/src/com/zabbix/gateway/GeneralInformation.java && \ + ./bootstrap.sh && \ + ./configure \ + --datadir=/usr/lib \ + --libdir=/usr/lib/zabbix \ + --sysconfdir=/etc/zabbix \ + --prefix=/usr \ + --enable-java \ + --silent && \ + make -j"$(nproc)" -s && \ + mkdir -p /usr/sbin/zabbix_java/ && \ + cp -r src/zabbix_java/bin /usr/sbin/zabbix_java/ && \ + cp -r src/zabbix_java/lib /usr/sbin/zabbix_java/ && \ + rm -rf /usr/sbin/zabbix_java/lib/*.xml && \ + cd /tmp/ && \ + rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \ + dnf -y history undo `dnf history list last -q | sed -n 3p |column -t | cut -d' ' -f1` && \ + dnf -y clean all && \ + chown --quiet -R zabbix:root /etc/zabbix/ /usr/sbin/zabbix_java/ && \ + chgrp -R 0 /etc/zabbix/ /usr/sbin/zabbix_java/ && \ + chmod -R g=u /etc/zabbix/ /usr/sbin/zabbix_java/ && \ + rm -rf /var/cache/yum /var/lib/yum/yumdb/* /usr/lib/udev/hwdb.d/* && \ + rm -rf /var/cache/dnf /etc/udev/hwdb.bin /root/.pki + +EXPOSE 10052/TCP + +WORKDIR /var/lib/zabbix + +COPY ["conf/usr/sbin/zabbix_java_gateway", "/usr/sbin/"] +COPY ["docker-entrypoint.sh", "/usr/bin/"] + +ENTRYPOINT ["docker-entrypoint.sh"] + +USER 1997 + +CMD ["/usr/sbin/zabbix_java_gateway"] diff --git a/java-gateway/rhel/README.md b/java-gateway/rhel/README.md new file mode 100644 index 000000000..c4b0a4aa8 --- /dev/null +++ b/java-gateway/rhel/README.md @@ -0,0 +1,125 @@ +![logo](https://assets.zabbix.com/img/logo/zabbix_logo_500x131.png) + +# What is Zabbix? + +Zabbix is an enterprise-class open source distributed monitoring solution. + +Zabbix is software that monitors numerous parameters of a network and the health and integrity of servers. Zabbix uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. Zabbix offers excellent reporting and data visualisation features based on the stored data. This makes Zabbix ideal for capacity planning. + +For more information and related downloads for Zabbix components, please visit https://hub.docker.com/u/zabbix/ and https://zabbix.com + +# What is Zabbix Java Gateway? + +Zabbix Java Gateway performs native support for monitoring JMX applications. Java gateway accepts incoming connection from Zabbix server or Zabbix proxy and can only be used as a "passive proxy". + +# Zabbix Java Gateway images + +These are the only official Zabbix Java Gateway Docker images. They are based on Alpine Linux v3.9, Ubuntu 18.04 (bionic) and CentOS 7 images. The available versions of Zabbix Java Gateway are: + + Zabbix Java Gateway 3.0 (tags: alpine-3.0-latest, ubuntu-3.0-latest, centos-3.0-latest) + Zabbix Java Gateway 3.0.* (tags: alpine-3.0.*, ubuntu-3.0.*, centos-3.0.*) + Zabbix Java Gateway 3.2 (tags: alpine-3.2-latest, ubuntu-3.2-latest, centos-3.2-latest) + Zabbix Java Gateway 3.2.* (tags: alpine-3.2.*, ubuntu-3.2.*, centos-3.2.*) + Zabbix Java Gateway 3.4 (tags: alpine-3.4-latest, ubuntu-3.4-latest, centos-3.4-latest) + Zabbix Java Gateway 3.4.* (tags: alpine-3.4.*, ubuntu-3.4.*, centos-3.4.*) + Zabbix Java Gateway 4.0 (tags: alpine-4.0-latest, ubuntu-4.0-latest, centos-4.0-latest) + Zabbix Java Gateway 4.0.* (tags: alpine-4.0.*, ubuntu-4.0.*, centos-4.0.*) + Zabbix Java Gateway 4.2 (tags: alpine-4.2-latest, ubuntu-4.2-latest, centos-4.2-latest) + Zabbix Java Gateway 4.2.* (tags: alpine-4.2.*, ubuntu-4.2.*, centos-4.2.*) + Zabbix Java Gateway 4.4 (tags: alpine-4.4-latest, ubuntu-4.4-latest, centos-4.4-latest, alpine-latest, ubuntu-latest, centos-latest, latest) + Zabbix Java Gateway 4.4.* (tags: alpine-4.4.*, ubuntu-4.4.*, centos-4.4.*) + Zabbix Java Gateway 5.0 (tags: alpine-trunk, ubuntu-trunk, centos-trunk) + +Images are updated when new releases are published. The image with ``latest`` tag is based on Alpine Linux. + +# How to use this image + +## Start `zabbix-java-gateway` + +Start a Zabbix Java Gateway container as follows: + + docker run --name some-zabbix-java-gateway -d zabbix/zabbix-java-gateway:tag + +Where `some-zabbix-java-gateway` is the name you want to assign to your container and `tag` is the tag specifying the version you want. See the list above for relevant tags, or look at the [full list of tags](https://hub.docker.com/r/zabbix/zabbix-java-gateway/tags/). + +## Linking the container to Zabbix server or Zabbix proxy + + docker run --name some-zabbix-java-gateway --link some-zabbix-server:zabbix-server -d zabbix/zabbix-java-gateway:tag + +## Container shell access and viewing Zabbix Java Gateway logs + +The `docker exec` command allows you to run commands inside a Docker container. The following command line will give you a bash shell inside your `zabbix-java-gateway` container: + +```console +$ docker exec -ti some-zabbix-java-gateway /bin/bash +``` + +The Zabbix Java Gateway log is available through Docker's container log: + +```console +$ docker logs some-zabbix-java-gateway +``` + +## Environment Variables + +When you start the `zabbix-java-gateway` image, you can adjust the configuration of the Zabbix Java Gateway by passing one or more environment variables on the `docker run` command line. + +### `ZBX_START_POLLERS` + +This variable is specified amount of pollers. By default, value is `5`. + +### `ZBX_TIMEOUT` + +This variable is used to specify timeout for outgoing connections. By default, value is `3`. + +### `ZBX_DEBUGLEVEL` + +This variable is used to specify log level. By default, value is `info`. The variable allows next values: ``trace``, ``debug``, ``info``, ``want``, ``error``, ``all``, ``off`` + +## Allowed volumes for the Zabbix Java Gateway container + +### ``/usr/sbin/zabbix_java/ext_lib`` + +The volume allows include additional JAR files to extend allowed protocols for Zabbix Java Gateway. + +# The image variants + +The `zabbix-java-gateway` images come in many flavors, each designed for a specific use case. + +## `zabbix-java-gateway:ubuntu-` + +This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of. + +## `zabbix-java-gateway:alpine-` + +This image is based on the popular [Alpine Linux project](http://alpinelinux.org), available in [the `alpine` official image](https://hub.docker.com/_/alpine). Alpine Linux is much smaller than most distribution base images (~5MB), and thus leads to much slimmer images in general. + +This variant is highly recommended when final image size being as small as possible is desired. The main caveat to note is that it does use [musl libc](http://www.musl-libc.org) instead of [glibc and friends](http://www.etalabs.net/compare_libcs.html), so certain software might run into issues depending on the depth of their libc requirements. However, most software doesn't have an issue with this, so this variant is usually a very safe choice. See [this Hacker News comment thread](https://news.ycombinator.com/item?id=10782897) for more discussion of the issues that might arise and some pro/con comparisons of using Alpine-based images. + +To minimize image size, it's uncommon for additional related tools (such as `git` or `bash`) to be included in Alpine-based images. Using this image as a base, add the things you need in your own Dockerfile (see the [`alpine` image description](https://hub.docker.com/_/alpine/) for examples of how to install packages if you are unfamiliar). + +# Supported Docker versions + +This image is officially supported on Docker version 1.12.0. + +Support for older versions (down to 1.6) is provided on a best-effort basis. + +Please see [the Docker installation documentation](https://docs.docker.com/installation/) for details on how to upgrade your Docker daemon. + +# User Feedback + +## Documentation + +Documentation for this image is stored in the [`java-gateway/` directory](https://github.com/zabbix/zabbix-docker/tree/3.0/java-gateway) of the [`zabbix/zabbix-docker` GitHub repo](https://github.com/zabbix/zabbix-docker/). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/zabbix/zabbix-docker/blob/master/README.md) before attempting a pull request. + +## Issues + +If you have any problems with or questions about this image, please contact us through a [GitHub issue](https://github.com/zabbix/zabbix-docker/issues). + +### Known issues + +## Contributing + +You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can. + +Before you start to code, we recommend discussing your plans through a [GitHub issue](https://github.com/zabbix/zabbix-docker/issues), especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing. diff --git a/java-gateway/rhel/build.sh b/java-gateway/rhel/build.sh new file mode 120000 index 000000000..fcb4d4ee7 --- /dev/null +++ b/java-gateway/rhel/build.sh @@ -0,0 +1 @@ +../../build.sh \ No newline at end of file diff --git a/java-gateway/rhel/conf/etc/zabbix/zabbix_java_gateway_logback.xml b/java-gateway/rhel/conf/etc/zabbix/zabbix_java_gateway_logback.xml new file mode 100644 index 000000000..750f3506f --- /dev/null +++ b/java-gateway/rhel/conf/etc/zabbix/zabbix_java_gateway_logback.xml @@ -0,0 +1,15 @@ + + + + + + %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n + + + + + + + + + diff --git a/java-gateway/rhel/conf/usr/sbin/zabbix_java_gateway b/java-gateway/rhel/conf/usr/sbin/zabbix_java_gateway new file mode 100755 index 000000000..e77d407f6 --- /dev/null +++ b/java-gateway/rhel/conf/usr/sbin/zabbix_java_gateway @@ -0,0 +1,27 @@ +JAVA=${JAVA:-"/usr/bin/java"} +DAEMON=${DAEMON:-"/usr/sbin/zabbix_java"} + +JAVA_OPTIONS="-server $JAVA_OPTIONS" +JAVA_OPTIONS="$JAVA_OPTIONS -Dlogback.configurationFile=/etc/zabbix/zabbix_java_gateway_logback.xml" + +cd $DAEMON + +CLASSPATH="$DAEMON/lib" +for jar in `find lib bin ext_lib -name "*.jar"`; do + if [ $jar != *junit* ]; then + CLASSPATH="$CLASSPATH:$DAEMON/$jar" + fi +done + +ZABBIX_OPTIONS="" +if [ -n "$ZBX_START_POLLERS" ]; then + ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.startPollers=$ZBX_START_POLLERS" +fi +if [ -n "$ZBX_TIMEOUT" ]; then + ZABBIX_OPTIONS="$ZABBIX_OPTIONS -Dzabbix.timeout=$ZBX_TIMEOUT -Dsun.rmi.transport.tcp.responseTimeout=${ZBX_TIMEOUT}000" +fi + + +COMMAND_LINE="$JAVA $JAVA_OPTIONS -classpath $CLASSPATH $ZABBIX_OPTIONS com.zabbix.gateway.JavaGateway" + +exec $COMMAND_LINE diff --git a/java-gateway/rhel/docker-entrypoint.sh b/java-gateway/rhel/docker-entrypoint.sh new file mode 100755 index 000000000..ec5223733 --- /dev/null +++ b/java-gateway/rhel/docker-entrypoint.sh @@ -0,0 +1,46 @@ +#!/bin/bash + +set -o pipefail + +set +e + +# Script trace mode +if [ "${DEBUG_MODE}" == "true" ]; then + set -o xtrace +fi + +# Default directories +# Configuration files directory +ZABBIX_ETC_DIR="/etc/zabbix" + +prepare_java_gateway_config() { + echo "** Preparing Zabbix Java Gateway log configuration file" + + ZBX_GATEWAY_CONFIG=$ZABBIX_ETC_DIR/zabbix_java_gateway_logback.xml + + if [ -n "${ZBX_DEBUGLEVEL}" ]; then + echo "Updating $ZBX_GATEWAY_CONFIG 'DebugLevel' parameter: '${ZBX_DEBUGLEVEL}'... updated" + if [ -f "$ZBX_GATEWAY_CONFIG" ]; then + sed -i -e "/^.*/" "$ZBX_GATEWAY_CONFIG" + else + echo "**** Zabbix Java Gateway log configuration file '$ZBX_GATEWAY_CONFIG' not found" + fi + fi +} + +prepare_java_gateway() { + echo "** Preparing Zabbix Java Gateway" + + prepare_java_gateway_config +} + +################################################# + +if [ "$1" == '/usr/sbin/zabbix_java_gateway' ]; then + prepare_java_gateway +fi + +exec "$@" + + +################################################# diff --git a/java-gateway/rhel/licenses/gpl-2.0.txt b/java-gateway/rhel/licenses/gpl-2.0.txt new file mode 100644 index 000000000..d159169d1 --- /dev/null +++ b/java-gateway/rhel/licenses/gpl-2.0.txt @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License.