Integrate the alpine image into the master branch

Dockerfile-alpine

@@ -0,0 +1,29 @@
+# The MIT License
+#
+#  Copyright (c) 2015-2017, CloudBees, Inc.
+#
+#  Permission is hereby granted, free of charge, to any person obtaining a copy
+#  of this software and associated documentation files (the "Software"), to deal
+#  in the Software without restriction, including without limitation the rights
+#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#  copies of the Software, and to permit persons to whom the Software is
+#  furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice shall be included in
+#  all copies or substantial portions of the Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#  THE SOFTWARE.
+
+FROM jenkins/slave:3.35-2-alpine
+MAINTAINER Oleg Nenashev <o.v.nenashev@gmail.com>
+LABEL Description="This is a base image, which allows connecting Jenkins agents via JNLP protocols" Vendor="Jenkins project" Version="3.35-2"
+
+COPY jenkins-slave /usr/local/bin/jenkins-slave
+
+ENTRYPOINT ["jenkins-slave"]

README.md

@@ -47,7 +47,7 @@ Optional environment variables:
 ### Enabled JNLP protocols
 
 By default, the [JNLP3-connect](https://github.com/jenkinsci/remoting/blob/master/docs/protocols.md#jnlp3-connect) is disabled due to the known stability and scalability issues.
-You can enable this protocol on your own risk using the 
+You can enable this protocol at your own risk using the 
 `JNLP_PROTOCOL_OPTS=-Dorg.jenkinsci.remoting.engine.JnlpProtocol3.disabled=false` property (the protocol should be enabled on the master side as well).
 
 In Jenkins versions starting from `2.27` there is a [JNLP4-connect](https://github.com/jenkinsci/remoting/blob/master/docs/protocols.md#jnlp4-connect) protocol.