Merge branch 'master' of github.com:jenkinsci/docker-workflow-plugin into CustomDescribableModel-JENKINS-44892

Author: jglick

.github/release-drafter.yml

@@ -0,0 +1,3 @@
+# https://github.com/jenkinsci/.github/blob/master/.github/release-drafter.adoc
+_extends: .github
+tag-template: docker-workflow-$NEXT_MINOR_VERSION

Jenkinsfile

@@ -1,2 +1,4 @@
-buildPlugin()
-
+buildPlugin(platforms: [
+    'linux',
+    'maven-windows' // TODO Docker-based tests fail when using Docker on Windows. The maven-windows agents do not have Docker installed so tests that require Docker are skipped.
+])

README.md

@@ -1,6 +1,10 @@
 Docker Pipeline Plugin
 =====================================
 
+[![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/docker-workflow.svg)](https://plugins.jenkins.io/docker-workflow)
+[![GitHub release](https://img.shields.io/github/release/jenkinsci/docker-workflow-plugin.svg?label=changelog)](https://github.com/jenkinsci/docker-workflow-plugin/releases/latest)
+[![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/docker-workflow.svg?color=blue)](https://plugins.jenkins.io/docker-workflow)
+
 Jenkins plugin which allows building, testing, and using Docker images from Jenkins Pipeline projects.
 
 Summary
@@ -10,26 +14,14 @@ A full description is available in the plugin’s [documentation](https://go.clo
 
 Demo
 ---
-The plugin has a Docker-based demo. See the [demo README](demo/README.md) page for setup and launch guidelines.
-
-Releasing
----
-
-Prior to release, edit `demo/plugins.txt` to use the snapshot version and run:
-
-    mvn -DskipTests clean install
-    make -C demo run
-
-and verify that the demo works.
-
-After the Maven release completes, update the `docker-workflow` version in `demo/plugins.txt` to the release version and run
-
-    make -C demo run
-    
-to sanity check, then
-
-    make -C demo push-latest
+The plugin has an outdated Docker-based demo. See the [demo README from v1.12](https://github.com/jenkinsci/docker-workflow-plugin/tree/docker-workflow-1.12/demo) for setup and launch guidelines.
 
 License
 ---
 [MIT License](http://opensource.org/licenses/MIT)
+
+Changelog
+---
+
+* For new versions, see [GitHub Releases](https://github.com/jenkinsci/docker-workflow-plugin/releases)
+* For versions 1.19 and older, see the [plugin's Wiki page](https://wiki.jenkins.io/display/JENKINS/Docker+Pipeline+Plugin)