new file: Dockerfile

new file:   Jenkinsfile

Dockerfile

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+# Base on latest (edge) alpine image
+FROM harbor.ervine.dev/library/x86_64/alpine/alpine:3.12
+
+MAINTAINER “Jonathan Ervine” <docker@ervine.org>
+
+# Install updates
+ENV LANG='en_US.UTF-8' \
+    LANGUAGE='en_US.UTF-8' \
+    TERM='xterm' 
+
+RUN echo http://dl-4.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories && \
+  apk -U update && \
+  apk -U upgrade && \
+  apk -U add \
+    dnsmasq \
+    && \
+  rm -rf /tmp/src && \
+  rm -rf /var/cache/apk/* 
+
+EXPOSE 53
+
+CMD [ "/usr/sbin/dnsmasq", "-d", "-C", "/config/dnsmasq.conf" ]

Jenkinsfile

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+node("docker-node") {
+    docker.withRegistry('https://harbor.ervine.dev', 'jenkins-to-harbor') {
+    
+        git branch: "master", url: "ssh://git@git.ervine.org/jonny/x86_64-alpine-dnsmasq", credentialsId: 'jenkins-to-git'
+    
+        sh "git rev-parse HEAD > .git/commit-id"
+        def commit_id = readFile('.git/commit-id').trim()
+        println commit_id
+    
+        stage "build"
+        def app = docker.build "library/x86_64/alpine/dnsmasq"
+    
+        stage "publish"
+        app.push("${env.BUILD_NUMBER}")
+        app.push("latest")
+    }
+}