Here's my go at it

.gitignore

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+bin/build.sh
+bin/destroy.sh
+bin/install.sh
+bin/rebuild.sh
+bin/rerun.sh
+bin/run.sh
+bin/stop.sh
+bin/test.sh

BINSCRIPTS.md

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+# util
+
+This repository is intended to be downloaded into a container repository during development for convenience purposes.  Since the major mechanisms of developing to the Docker container construction lifecycle are identical across container images, this repository allows for consistency and additional ease of use across all container images.
+
+## Install
+
+If you are reading this file in BINSCRIPTS.md, your container project is likely to be util-enabled.
+
+To use these scripts yourself, issue this command:
+
+```
+curl "https://github.internet2.edu/raw/docker/util/master/bin/install.sh?token=AAAAE4VRBLPB8VExPHSR5nCe791IAYqaks5Xzug5wA%3D%3D" | bash
+```
+
+### common.bash
+
+The installation process will create a common.bash file.  This file should be the central, canonical authority for management of environment variables.  While a subprocess may override them, the files in common.bash should be treated as authoritative defaults.  Processes (e.g. `docker build`, `bats`, inside `Jenkinsfile`) can read this file and process the results therein.
+
+You should edit this file to change the image name, and add any other helpful environment variables.
+
+### Jenkinsfile
+
+This will also install a Jenkinsfile to your repository, if it doesn't have one.  This will ensure that your Jenkins pipeline can leverage these scripts in the way intended.  Ensuring the commands that you issue on your laptop match the commands issued by the build pipeline is critical to ensure predictable, reliable results.
+
+## Use
+
+
+### Building
+
+#### build.sh
+`bin/build.sh `
+#### destroy.sh
+#### rebuild.sh
+
+### Running
+### rerun.sh
+### run.sh
+
+
+### Testing
+#### test.sh

Dockerfile

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+FROM tier/centos7base
+
+# Define args and set a default value
+ARG registry=docker.io
+ARG maintainer=tier
+ARG imagename=mariadb
+ARG version=5.5
+
+MAINTAINER $maintainer
+LABEL Vendor="Internet2"
+LABEL ImageType="Database"
+LABEL ImageName=$imagename
+LABEL ImageOS=centos7
+LABEL Version=$version
+
+LABEL Build docker build --rm --tag $registry/$maintainer/$imagename .
+
+# Install base deps
+RUN yum -y install --setopt=tsflags=nodocs mariadb-server bind-utils pwgen psmisc hostname vim
+
+# Add starters and installers
+ADD ./container_files /root
+
+# Add Volumes and Set permissions
+RUN mkdir /opt/shared && chmod 777 /opt/shared && chmod 777 /root/*.sh
+
+# Place VOLUME statement below all changes to /var/lib/mysql
+VOLUME /var/lib/mysql
+
+# Environment variables
+ENV CREATE_NEW_DATABASE "1"
+ENV MYSQL_ROOT_PASSWORD "123321"
+ENV MYSQL_DATABASE "registry"
+ENV MYSQL_USER "registry_user"
+ENV MYSQL_PASSWORD "WJzesbe3poNZ91qIbmR7"
+ENV MYSQL_DATADIR "/var/lib/mysqlmounted"
+ENV TERM "testterm"
+
+# Port
+EXPOSE 3306
+
+CMD ["/root/container_start.sh"]

Jenkinsfile

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+node {
+
+  stage 'Checkout'
+
+    checkout scm
+
+  stage 'Acquire util'
+
+    sh 'mkdir -p tmp && mkdir -p bin'
+    dir('tmp'){
+      git([ url: "https://github.internet2.edu/docker/util.git",
+          credentialsId: "jenkins-github-access-token" ])
+      sh 'mv ./bin/* ../bin/.'
+    }
+
+  stage 'Setting build context'
+
+    def maintainer = maintainer()
+    def imagename = imagename()
+    def tag
+
+    // Tag images created on master branch with 'latest'
+    if(env.BRANCH_NAME == "master"){
+      tag = "latest"
+    }else{
+      tag = env.BRANCH_NAME
+    }
+
+    if(!imagename){
+      echo "You must define an imagename in common.bash"
+      currentBuild.result = 'FAILURE'
+     }
+     if(maintainer){
+      echo "Building ${imagename}:${tag} for ${maintainer}"
+     }
+
+  stage 'Build'
+    try{
+      sh 'bin/build.sh &> debug'
+    } catch(error) {
+      def error_details = readFile('./debug');
+      def message = "BUILD ERROR: There was a problem building ${imagename}:${tag}. \n\n ${error_details}"
+      sh "rm -f ./debug"
+      handleError(message)
+    }
+
+  stage 'Start'
+
+    sh 'bin/start.sh'
+
+  stage 'Tests'
+
+    try{
+      sh 'bin/test.sh &> debug'
+    } catch(error) {
+      def error_details = readFile('./debug');
+      def message = "BUILD ERROR: There was a problem building ${imagename}:${tag}. \n\n ${error_details}"
+      sh "rm -f ./debug"
+      handleError(message)
+    } finally {
+      sh 'bin/stop.sh'
+    }
+
+  stage 'Stop'
+
+    sh 'bin/stop.sh'
+
+  stage 'Push'
+
+    docker.withRegistry('https://registry.hub.docker.com/',   "dockerhub-$maintainer") {
+          def baseImg = docker.build("$maintainer/$imagename")
+          baseImg.push("$tag")
+    }
+
+  stage 'Notify'
+
+    slackSend color: 'good', message: "$maintainer/$imagename:$tag pushed to DockerHub"
+
+  stage 'Cleanup'
+
+    sh 'rm -rf tmp'
+
+}
+
+def maintainer() {
+  def matcher = readFile('common.bash') =~ 'maintainer="(.+)"'
+  matcher ? matcher[0][1] : 'tier'
+}
+
+def imagename() {
+  def matcher = readFile('common.bash') =~ 'imagename="(.+)"'
+  matcher ? matcher[0][1] : null
+}
+
+def handleError(String message){
+  echo "${message}"
+  currentBuild.setResult("FAILED")
+  slackSend color: 'danger', message: "${message}"
+  //step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: 'chris.bynum@levvel.io', sendToIndividuals: true])
+  sh 'exit 1'
+}

bin/start.sh

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+#!/bin/bash
+
+source common.bash .
+
+echo "Running Docker image($registry/$maintainer/$imagename)"
+docker run --name=$imagename -d -p 3306:3306 $maintainer/$imagename
+
+exit 0

common.bash

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+maintainer="tier"
+imagename="mariadb"
+version="5.5"

container_files/container_start.sh

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+#!/bin/bash -x
+
+log="/tmp/start.log"
+
+echo "Starting Container: " > $log
+date >> $log
+echo "" >> $log
+
+if [ -e "/tmp/firsttimerunning" ]; then
+
+    set -e
+
+    echo "Checking args" >> $log
+    if [ "${1:0:1}" = '-' ]; then
+        set -- mysqld_safe "$@" >> $log
+    fi
+
+    echo "Setting DataDir: $MYSQL_DATADIR" >> $log
+
+    if [ "$CREATE_NEW_DATABASE" == "1" ]; then
+
+        echo "Installing MariaDB" >> $log
+
+        if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" ]; then
+            echo >&2 'error: database is uninitialized and MYSQL_ROOT_PASSWORD not set' >> $log
+            echo >&2 '  Did you forget to add -e MYSQL_ROOT_PASSWORD=... ?' >> $log
+            exit 1
+        fi
+
+        echo 'Running mysql_install_db ...' >> $log
+        mysql_install_db --datadir="$MYSQL_DATADIR" >> $log
+        echo 'Finished mysql_install_db' >> $log
+
+        # These statements _must_ be on individual lines, and _must_ end with
+        # semicolons (no line breaks or comments are permitted).
+        # TODO proper SQL escaping on ALL the things D:
+
+        tempSqlFile='/tmp/mysql-first-time.sql'
+        echo "DELETE FROM mysql.user ;" > $tempSqlFile
+        echo "CREATE USER 'root'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;" >> $tempSqlFile
+        echo "GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION ;" >> $tempSqlFile
+        echo "GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}';" >> $tempSqlFile
+        echo "GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;" >> $tempSqlFile
+        echo "DROP DATABASE IF EXISTS test ;" >> $tempSqlFile
+
+
+        if [ "$MYSQL_DATABASE" != "" ]; then
+            echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" >> "$tempSqlFile"
+            echo "CREATE USER '$MYSQL_USER'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+            echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+            echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'localhost' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+            echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'comanage.compose_i2network' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+            echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'comanage.comanage_i2network' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+            echo "GRANT ALL ON $MYSQL_DATABASE.* TO '$MYSQL_USER'@'comanage.config_i2network' IDENTIFIED BY '$MYSQL_PASSWORD' ;" >> "$tempSqlFile"
+        fi
+
+        echo 'FLUSH PRIVILEGES ;' >> "$tempSqlFile"
+
+        echo "character-set-server = utf8mb4" >> /etc/my.cnf
+        echo "collation-server = utf8mb4_unicode_ci" >> /etc/my.cnf
+        echo "" >> /etc/my.cnf
+
+        echo "Fixing Permissions" >> $log
+        chown -R mysql:mysql $MYSQL_DATADIR
+        /root/fix-permissions.sh $MYSQL_DATADIR >> $log
+        /root/fix-permissions.sh /var/log/mariadb/ >> $log
+        /root/fix-permissions.sh /var/run/ >> $log
+        echo "Done Fixing Permissions" >> $log
+
+        /usr/bin/mysqld_safe --init-file="$tempSqlFile" --datadir="$MYSQL_DATADIR"
+    else
+        echo "Not Creating a MariaDB - Using Existing from DataDir: $MYSQL_DATADIR" >> $log
+        /usr/bin/mysqld_safe --datadir="$MYSQL_DATADIR"
+    fi
+
+    rm -f /tmp/firsttimerunning 
+else
+    echo "Using Existing MariaDB from DataDir: $MYSQL_DATADIR" >> $log
+    /usr/bin/mysqld_safe --datadir="$MYSQL_DATADIR"
+fi
+
+tail -f $log
+
+exit 0

container_files/fix-permissions.sh

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+#!/bin/sh
+
+log="/tmp/permissions.log"
+
+echo "Starting Container: " > $log
+date >> $log
+echo "" >> $log
+
+# Taken from https://raw.githubusercontent.com/openshift/sti-base/master/bin/fix-permissions
+# Fix permissions on the given directory to allow group read/write of 
+# regular files and execute of directories.
+chgrp -R 0 $1 >> $log
+chmod -R g+rw $1 >> $log
+find $1 -type d -exec chmod g+x {} + >> $log
+
+exit 0

tests/image.bats

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+#!/usr/bin/env bats
+
+load ../common
+
+@test "Data directory created" {
+  docker run -i $maintainer/$imagename find /var/lib/mysql
+}
+
+@test "MariaDB service available" {
+  docker run -i $maintainer/$imagename find /usr/lib/systemd/system/mariadb.service
+}

tests/running.bats

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+#!/usr/bin/env bats
+
+load ../common
+
+# Assumes process is running
+
+@test "MySQL user running process" {
+  docker exec -i $imagename ps -u mysql
+}
+
+@test "Creates root account and database" {
+  docker exec -i $imagename mysql -u root --password="123321" -e 'show tables' registry
+}
+
+@test "Creates user account with password" {
+  docker exec -i $imagename mysql -u registry_user --password="WJzesbe3poNZ91qIbmR7" -e 'show tables' registry
+}