dockerfile and jenkinsfile (#1)

Dockerfile

@@ -0,0 +1,30 @@
+FROM    alpine:3.11
+LABEL   authors="Stakater <hello@stakater.com>"
+
+RUN     apk --no-cache add --update bash sudo nano sudo zip bzip2 fontconfig wget curl 'su-exec>=0.2'
+
+# Download and install runit
+RUN     buildDeps='tar make gcc musl-dev' \
+        RUNIT_VERSION="2.1.2" \
+        RUNIT_DOWNLOAD_URL="http://smarden.org/runit/runit-${RUNIT_VERSION}.tar.gz" \
+        RUNIT_DOWNLOAD_SHA1="398f7bf995acd58797c1d4a7bcd75cc1fc83aa66" \
+        && set -x \
+        && apk add --update $buildDeps \
+        && curl -sSL "$RUNIT_DOWNLOAD_URL" -o runit.tar.gz \
+        && echo "$RUNIT_DOWNLOAD_SHA1 *runit.tar.gz" | sha1sum -c - \
+        && mkdir -p /usr/src/runit \
+        && tar -xzf runit.tar.gz -C /usr/src/runit --strip-components=2 \
+        && rm -f runit.tar.gz \
+        && cd /usr/src/runit/src \
+        && make \
+        && cd .. \
+        && cat package/commands | xargs -I {} mv -f src/{} /sbin/ \
+        && cd / \
+        && rm -rf /usr/src/runit \
+        && apk del $buildDeps \
+        && sudo mkdir -p /etc/service
+
+RUN     rm -rf /var/cache/apk/*
+
+COPY    /runsvinit /
+ENTRYPOINT  ["/runsvinit"]

Jenkinsfile

@@ -0,0 +1,6 @@
+#!/usr/bin/env groovy
+@Library('github.com/stakater/stakater-pipeline-library@v2.16.27') _
+
+pushDockerImage {
+    dockerRepositoryURL = "docker.io"
+}