add elasticsearch-arm

elk/arm/elasticsearch/Dockerfile

@@ -0,0 +1,42 @@
+#
+# Dockerfile for elasticsearch-arm
+#
+
+FROM easypi/alpine-arm:edge
+MAINTAINER EasyPi Software Foundation
+
+ENV ELASTICSEARCH_VERSION 5.0.0
+ENV ELASTICSEARCH_URL https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-$ELASTICSEARCH_VERSION.tar.gz
+
+ENV GOSU_VERSION 1.10
+ENV GOSU_URL https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-armhf
+
+WORKDIR /opt/elasticsearch
+
+RUN set -xe \
+    && apk add --no-cache ca-certificates \
+                          bash \
+                          curl \
+                          openjdk8-jre \
+                          tar \
+    && curl -sSL $ELASTICSEARCH_URL | tar xz --strip 1 \
+    && curl -sSL $GOSU_URL > /usr/local/bin/gosu \
+    && chmod +x /usr/local/bin/gosu \
+    && gosu nobody true \
+    && apk del curl tar
+
+RUN set -xe \
+    && addgroup -g 1000 elasticsearch \
+    && adduser -D -H -h /opt/elasticsearch -u 1000 -G elasticsearch elasticsearch \
+    && mkdir -p data logs config/scripts \
+    && chown -R elasticsearch:elasticsearch data logs config
+
+COPY config ./config
+COPY docker-entrypoint.sh /entrypoint.sh
+
+VOLUME /opt/elasticsearch/data
+
+EXPOSE 9200 9300
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["elasticsearch"]

elk/arm/elasticsearch/README.md

@@ -0,0 +1,18 @@
+elasticsearch
+=============
+
+WARNING: IT DOES NOT WORK ON RASPBERRY PI!
+
+```
+$ sudo vi /etc/dphys-swapfile
+- CONF_SWAPSIZE=100
++ CONF_SWAPSIZE=2048
+
+$ sudo systemctl restart dphys-swapfile.service
+
+$ docker-compose up -d
+
+$ docker-compose logs -f
+elasticsearch_1  | Error occurred during initialization of VM
+elasticsearch_1  | Could not reserve enough space for 2097152KB object heap
+```

elk/arm/elasticsearch/config/elasticsearch.yml

@@ -0,0 +1,5 @@
+network.host: 0.0.0.0
+path.data: /opt/elasticsearch/data
+path.logs: /opt/elasticsearch/logs
+discovery.zen.minimum_master_nodes: 1
+bootstrap.mlockall: false

elk/arm/elasticsearch/config/jvm.options

@@ -0,0 +1,100 @@
+## JVM configuration
+
+################################################################
+## IMPORTANT: JVM heap size
+################################################################
+##
+## You should always set the min and max JVM heap
+## size to the same value. For example, to set
+## the heap to 4 GB, set:
+##
+## -Xms4g
+## -Xmx4g
+##
+## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
+## for more information
+##
+################################################################
+
+# Xms represents the initial size of total heap space
+# Xmx represents the maximum size of total heap space
+
+-Xms512m
+-Xmx512m
+
+################################################################
+## Expert settings
+################################################################
+##
+## All settings below this section are considered
+## expert settings. Don't tamper with them unless
+## you understand what you are doing
+##
+################################################################
+
+## GC configuration
+-XX:+UseConcMarkSweepGC
+-XX:CMSInitiatingOccupancyFraction=75
+-XX:+UseCMSInitiatingOccupancyOnly
+
+## optimizations
+
+# disable calls to System#gc
+-XX:+DisableExplicitGC
+
+# pre-touch memory pages used by the JVM during initialization
+-XX:+AlwaysPreTouch
+
+## basic
+
+# force the server VM
+-server
+
+# set to headless, just in case
+-Djava.awt.headless=true
+
+# ensure UTF-8 encoding by default (e.g. filenames)
+-Dfile.encoding=UTF-8
+
+# use our provided JNA always versus the system one
+-Djna.nosys=true
+
+# flags to keep Netty from being unsafe
+-Dio.netty.noUnsafe=true
+-Dio.netty.noKeySetOptimization=true
+
+# log4j 2
+-Dlog4j.shutdownHookEnabled=false
+-Dlog4j2.disable.jmx=true
+-Dlog4j.skipJansi=true
+
+## heap dumps
+
+# generate a heap dump when an allocation from the Java heap fails
+# heap dumps are created in the working directory of the JVM
+-XX:+HeapDumpOnOutOfMemoryError
+
+# specify an alternative path for heap dumps
+# ensure the directory exists and has sufficient space
+#-XX:HeapDumpPath=${heap.dump.path}
+
+## GC logging
+
+#-XX:+PrintGCDetails
+#-XX:+PrintGCTimeStamps
+#-XX:+PrintGCDateStamps
+#-XX:+PrintClassHistogram
+#-XX:+PrintTenuringDistribution
+#-XX:+PrintGCApplicationStoppedTime
+
+# log GC status to a file with time stamps
+# ensure the directory exists
+#-Xloggc:${loggc}
+
+# Elasticsearch 5.0.0 will throw an exception on unquoted field names in JSON.
+# If documents were already indexed with unquoted fields in a previous version
+# of Elasticsearch, some operations may throw errors.
+#
+# WARNING: This option will be removed in Elasticsearch 6.0.0 and is provided
+# only for migration purposes.
+#-Delasticsearch.json.allow_unquoted_field_names=true

elk/arm/elasticsearch/config/log4j2.properties

@@ -0,0 +1,9 @@
+status = error
+
+appender.console.type = Console
+appender.console.name = console
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] %marker%m%n
+
+rootLogger.level = info
+rootLogger.appenderRef.console.ref = console

elk/arm/elasticsearch/docker-compose.yml

@@ -0,0 +1,9 @@
+elasticsearch:
+  image: easypi/elasticsearch-arm
+  ports:
+    - '9200:9200'
+    - '9300:9300'
+  volumes:
+    - ./data:/opt/elasticsearch/data
+    - ./config:/opt/elasticsearch/config
+  restart: always

elk/arm/elasticsearch/docker-entrypoint.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -e
+
+export PATH=/opt/elasticsearch/bin:$PATH
+
+# Add elasticsearch as command if needed
+if [ "${1:0:1}" = '-' ]; then
+	set -- elasticsearch "$@"
+fi
+
+# Drop root privileges if we are running elasticsearch
+# allow the container to be started with `--user`
+if [ "$1" = 'elasticsearch' -a "$(id -u)" = '0' ]; then
+	# Change the ownership of /opt/elasticsearch/data to elasticsearch
+	chown -R elasticsearch:elasticsearch /opt/elasticsearch/data
+	
+	set -- gosu elasticsearch "$@"
+	#exec gosu elasticsearch "$BASH_SOURCE" "$@"
+fi
+
+# As argument is not related to elasticsearch,
+# then assume that user wants to run his own process,
+# for example a `bash` shell to explore this image
+exec "$@"

hans/README.md

@@ -61,6 +61,10 @@ $ ip route change default via 10.1.2.1
 # Change Default Route (Method B)
 $ ip route add 0.0.0.0/1 dev tun0
 $ ip route add 128.0.0.0/1 dev tun0
+
+# Enable IP Forwarding
+$ sysctl -w net.ipv4.ip_forward=1
+$ iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -o tun0 -j MASQUERADE
 ```
 
 [1]: http://code.gerade.org/hans/