[es] Add note about increasing mmap count

Fixes #119
* also switch/upgrade base to openjdk 8u111

cassandra/Dockerfile

@@ -4,7 +4,7 @@ MAINTAINER itzg
 
 ENV CASSANDRA_VERSION 2.2.8
 
-ADD http://mirrors.ibiblio.org/apache/cassandra/$CASSANDRA_VERSION/apache-cassandra-$CASSANDRA_VERSION-bin.tar.gz /tmp/apache-cassandra.tgz
+ADD http://apache.mirrors.pair.com/cassandra/$CASSANDRA_VERSION/apache-cassandra-$CASSANDRA_VERSION-bin.tar.gz /tmp/apache-cassandra.tgz
 RUN tar -C /opt -zxf /tmp/apache-cassandra.tgz && \
   rm /tmp/apache-cassandra.tgz
 

elasticsearch/Dockerfile

@@ -1,10 +1,10 @@
-FROM java:8u92-jre-alpine
+FROM openjdk:8u111-jre-alpine
 
 MAINTAINER itzg
 
 RUN apk -U add bash
 
-ENV ES_VERSION=5.0.2
+ENV ES_VERSION=5.1.1
 
 ADD https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-$ES_VERSION.tar.gz /tmp/es.tgz
 RUN cd /usr/share && \
@@ -25,6 +25,7 @@ VOLUME ["/data","/conf"]
 
 WORKDIR $ES_HOME
 
+COPY java.policy /usr/lib/jvm/java-1.8-openjdk/jre/lib/security/
 COPY start /start
 COPY log4j2.properties $ES_HOME/config/
 

elasticsearch/README.md

@@ -1,5 +1,10 @@
 This Docker image provides an easily configurable Elasticsearch node. Via port mappings, it is easy to create an arbitrarily sized cluster of nodes. As long as the versions match, you can mix-and-match "real" Elasticsearch nodes with container-ized ones.
 
+# NOTE for use on Linux hosts
+
+Elasticsearch 5.x requires that the virtual memory mmap count is set sufficiently for stable,
+production use. [Refer to this guide for more information](https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html).
+
 # Basic Usage
 
 To start an Elasticsearch data node that listens on the standard ports on your host's network interface:
@@ -196,7 +201,7 @@ replacing `eth0` with another interface within the container, if needed.
 
 The same can be done for publish/binding of the http module by adding:
 
-    -e DISCOVERY_HTTP_IP=eth2
+    -e DISCOVER_HTTP_IP=eth2
 
 ## Heap size and other JVM options
 

elasticsearch/java.policy

@@ -0,0 +1,6 @@
+grant {
+  // JMX Java Management eXtensions
+  permission javax.management.MBeanTrustPermission "register";
+  permission javax.management.MBeanServerPermission "createMBeanServer";
+  permission javax.management.MBeanPermission "-#-[-]", "queryNames";
+};

kibana/Dockerfile

@@ -2,7 +2,7 @@ FROM openjdk:8u111-jre
 
 MAINTAINER itzg
 
-ENV KIBANA_VERSION 5.0.2
+ENV KIBANA_VERSION 5.1.1
 
 ADD https://artifacts.elastic.co/downloads/kibana/kibana-${KIBANA_VERSION}-linux-x86_64.tar.gz /tmp/kibana.tgz