feat: add initial Nexus3 files

nexus3/Dockerfile

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+# Copyright (c) 2016-present Sonatype, Inc.
+#
+# Licensed 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.
+
+FROM       registry.access.redhat.com/rhel7:7.6
+MAINTAINER Red Hat Training
+
+
+# Atomic Labels
+LABEL name="Nexus Repository Manager" \
+      vendor="Sonatype" \
+      version="3.6.0-02" \
+      release="3.6.0" \
+      url="https://sonatype.com" \
+      summary="The Nexus Repository Manager server \
+          with universal support for popular component formats." \
+      run="docker run -d --name NAME \
+          -p 8081:8081 \
+          IMAGE" \
+      stop="docker stop NAME"
+
+# OpenShift Labels
+LABEL io.k8s.description="The Nexus Repository Manager server \
+          with universal support for popular component formats." \
+      io.k8s.display-name="Nexus Repository Manager" \
+      io.openshift.expose-services="8081:8081" \
+io.openshift.tags="Sonatype,Nexus,Repository Manager"
+
+LABEL com.sonatype.license="Apache License, Version 2.0"
+
+COPY help.1 uid_entrypoint /
+
+COPY licenses /licenses
+
+
+RUN rpm --rebuilddb && \
+  yum install -y \
+  curl tar createrepo java-1.8.0-openjdk-devel \
+  && yum clean all
+
+
+# Install Nexus
+ENV SONATYPE_DIR=/opt/sonatype
+ENV NEXUS_DATA=/nexus-data \
+    NEXUS_HOME=${SONATYPE_DIR}/nexus \
+    NEXUS_VERSION=3.6.0-02 \
+    SONATYPE_WORK=${SONATYPE_DIR}/sonatype-work \
+    NEXUS_CONTEXT='' \
+    USER_NAME=nexus \
+    USER_UID=200
+
+# Install Nexus and Configure Nexus Runtime Environment
+RUN mkdir -p ${NEXUS_HOME} && \
+    curl --fail --silent --location --retry 3 \
+      http://content.example.com/ocp3.6/x86_64/installers/nexus-${NEXUS_VERSION}-unix.tar.gz \
+      | gunzip \
+      | tar x -C ${NEXUS_HOME} --strip-components=1 nexus-${NEXUS_VERSION} && \
+    chown -R root:root ${NEXUS_HOME} && \
+    \
+    sed \
+      -e '/^nexus-context/ s:$:${NEXUS_CONTEXT}:' \
+      -i ${NEXUS_HOME}/etc/nexus-default.properties && \
+    \
+    useradd -l -u ${USER_UID} -r -g 0 -m -d ${NEXUS_DATA} -s /sbin/no-login \
+            -c "${USER_NAME} application user" ${USER_NAME} && \
+            mkdir -p ${NEXUS_DATA}/etc ${NEXUS_DATA}/log ${NEXUS_DATA}/tmp ${SONATYPE_WORK} && \
+            ln -s ${NEXUS_DATA} ${SONATYPE_WORK}/nexus3 && \
+            chown -R ${USER_NAME}:0 ${NEXUS_DATA} && \
+            chmod -R g+rw ${NEXUS_DATA} /etc/passwd && \
+            chmod ug+x /uid_entrypoint && \
+            find ${NEXUS_DATA} -type d -exec chmod g+x {} +
+
+VOLUME ${NEXUS_DATA}
+
+#Configure probes scripts
+COPY probes/liveness.sh /usr/local/bin/liveness.sh
+COPY probes/readiness.sh /usr/local/bin/readiness.sh
+
+RUN chmod 775 /usr/local/bin/liveness.sh && \
+    chmod 775 /usr/local/bin/readiness.sh
+
+# arbitrary uid recognition at runtime - for OpenShift deployments
+RUN sed "s@${USER_NAME}:x:${USER_UID}:@${USER_NAME}:x:\${USER_ID}:@g" /etc/passwd > /etc/passwd.template
+
+# Supply non variable to USER command ${USER_NAME}
+USER 200
+WORKDIR ${NEXUS_HOME}
+
+ENV JAVA_MAX_MEM=1200m \
+    JAVA_MIN_MEM=1200m
+
+EXPOSE 8081
+
+ENTRYPOINT [ "/uid_entrypoint" ]
+CMD ["bin/nexus", "run"]
+

nexus3/etc/training.repo

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+[rhel-7-dvd]
+baseurl = http://content.example.com/rhel7.6/x86_64/dvd
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL DVD
+
+[rhel-server-rhscl-7-rpms]
+baseurl = http://content.example.com/ocp4.0/x86_64/rhelrhscl
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHSCL
+
+[rhel-7-server-datapath-rpms]
+baseurl = http://content.example.com/ocp4.0/x86_64/rheladditional/rhel-7-fast-datapath-rpms
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Datapath Packages
+
+[rhel-7-server-ansible-26]
+baseurl = http://content.example.com/ocp4.0/x86_64/rheladditional/rhel-7-server-ansible-2.6-rpms
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Ansible Packages
+
+[rhel-7-server-extras-rpms]
+baseurl = http://content.example.com/ocp4.0/x86_64/rheladditional/rhel-7-server-extras-rpms
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Extra Packages
+
+[rhel-7-server-common-rpms]
+baseurl = http://content.example.com/ocp4.0/x86_64/rheladditional/rhel-7-server-rh-common-rpms
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Common Packages
+
+[rhel-7-server-supplementary]
+baseurl = http://content.example.com/ocp4.0/x86_64/rhelsupplementary
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Supplementary Packages
+
+[rhel-7-server-optional-rpms]
+baseurl = http://content.example.com/ocp4.0/x86_64/rhelopt
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Optional Packages
+
+[rhel-7-server-updates]
+baseurl = http://content.example.com/ocp4.0/x86_64/rhelupdates
+enabled = true
+gpgcheck = false
+name = Remote classroom copy of RHEL 7.6 Updates
+

nexus3/help.1

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+.PP
+% 
+.BR NEXUS (1) 
+Container Image Pages
+% Sonatype
+% November 21, 2016
+.TH NAME
+.PP
+nexus \- Nexus Repository Manager container image
+.SH DESCRIPTION
+.PP
+The nexus image provides a containerized packaging of the Nexus Repository Manager.
+Nexus Repository Manager is a repository manager with universal support for popular component formats including Maven, Docker, NuGet, npm, PyPi, Bower and more.
+.PP
+The nexus image is designed to be run by the atomic command with one of these options:
+.PP
+\fB\fCrun\fR
+.PP
+Starts the installed container with selected privileges to the host.
+.PP
+\fB\fCstop\fR
+.PP
+Stops the installed container
+.PP
+The container itself consists of:
+    \- Linux base image
+    \- Oracle Java JDK
+    \- Nexus Repository Manager
+    \- Atomic help file
+.PP
+Files added to the container during docker build include: /help.1.
+.SH USAGE
+.PP
+To use the nexus container, you can run the atomic command with run, stop, or uninstall options:
+.PP
+To run the nexus container:
+.IP
+atomic run nexus
+.PP
+To stop the nexus container (after it is installed), run:
+.IP
+atomic stop nexus
+.SH LABELS
+.PP
+The nexus container includes the following LABEL settings:
+.PP
+That atomic command runs the docker command set in this label:
+.PP
+\fB\fCRUN=\fR
+.IP
+LABEL RUN='docker run \-d \-p 8081:8081 \-\-name ${NAME} ${IMAGE}'
+.IP
+The contents of the RUN label tells an \fB\fCatomic run nexus\fR command to open port 8081 & set the name of the container.
+.PP
+\fB\fCSTOP=\fR
+.IP
+LABEL STOP='docker stop ${NAME}'
+.PP
+\fB\fCName=\fR
+.PP
+The registry location and name of the image. For example, Name="Nexus Repository Manager".
+.PP
+\fB\fCVersion=\fR
+.PP
+The Nexus Repository Manager version from which the container was built. For example, Version="3.0.2\-02".
+.PP
+When the atomic command runs the nexus container, it reads the command line associated with the selected option
+from a LABEL set within the Docker container itself. It then runs that command. The following sections detail
+each option and associated LABEL:
+.SH SECURITY IMPLICATIONS
+.PP
+\fB\fC\-d\fR
+.PP
+Runs continuously as a daemon process in the background
+

nexus3/licenses/LICENSE

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+Sonatype Nexus (TM) Open Source Version
+Copyright (c) 2008-present Sonatype, Inc.
+All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
+
+This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
+which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
+
+Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
+of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
+Eclipse Foundation. All other trademarks are the property of their respective owners.

nexus3/probes/liveness.sh

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+#!/bin/sh
+
+curl -siu admin:admin123 http://localhost:8081/service/metrics/healthcheck | grep healthy | grep true
+RESPONSE=$?
+
+if [ "$RESPONSE" = "0" ] ; then
+  echo "******** liveness is Alive ********"
+  exit 0;
+else
+  echo "******** liveness is Dead ********"
+  exit 1;
+fi
+

nexus3/probes/readiness.sh

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+#!/bin/sh
+
+curl -siu admin:admin123 http://localhost:8081/service/metrics/ping | grep pong
+RESPONSE=$?
+
+if [ "$RESPONSE" = "0" ] ; then
+  echo "******** readiness is Alive ********"
+  exit 0;
+else
+  echo "******** readiness is Dead ********"
+  exit 1;
+fi
+

nexus3/uid_entrypoint

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+#!/bin/sh
+USER_ID=$(id -u)
+if [ ${USER_UID} != ${USER_ID} ]; then
+    sed "s@${USER_NAME}:x:\${USER_ID}:@${USER_NAME}:x:${USER_ID}:@g" /etc/passwd.template > /etc/passwd
+fi
+exec "$@"