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Subject [GitHub] [samza-hello-samza] vjagadish1989 commented on a change in pull request #62: Adding support for lxc on yarn for Samza
Date Wed, 12 Jun 2019 22:00:33 GMT
vjagadish1989 commented on a change in pull request #62: Adding support for lxc on yarn for
Samza
URL: https://github.com/apache/samza-hello-samza/pull/62#discussion_r293128114
 
 

 ##########
 File path: bin/setup-lxc
 ##########
 @@ -0,0 +1,345 @@
+#!/bin/bash -e
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# This script will download, setup, start, and stop servers for Kafka, YARN, and ZooKeeper,
+# as well as downloading, building and locally publishing Samza
+
+
+COMMAND=$1
+ARG0=$2
+ARG1=$3
+
+SHARED_LXC_DIR=/lxc-shared
+POSSIBLE_LXC_INTERFACES=( virbr0 lxcbr0)
+YARN_SITE_XML=conf/yarn-site.xml
+NM_LIVENESS_MS=10000 #value of the yarn.nm.liveness-monitor.expiry-interval-ms variable
+LXC_INSTANCE_TYPE="fedora"
+LXC_ROOTFS_DIR=/var/lib/lxc
+LXC_INSTANCE_START_NM_SCRIPT=startNodeManager
+
+RESOLV_CONF_FILE=/etc/resolv.conf
+
+# Helper function to test an IP address for validity:
+# Usage:
+#      valid_ip IP_ADDRESS
+#      if [[ $? -eq 0 ]]; then echo good; else echo bad; fi
+#   OR
+#      if valid_ip IP_ADDRESS; then echo good; else echo bad; fi
+#
+function valid_ip()
+{
+    local  ip=$1
+    local  stat=1
+
+    if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+        OIFS=$IFS
+        IFS='.'
+        ip=($ip)
+        IFS=$OIFS
+        [[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
+            && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
+        stat=$?
+    fi
+    return $stat
+}
+
+function check_OS() 
+{
+	#Check if OS is linux
+	if [[ "$OSTYPE" == "linux-gnu" ]]; then
+		echo "OS check passed."
+	else
+		echo "Only RHEL-Linux is currently supported for this setup. Exiting ..."
+		exit 0
+	fi
+}
+
+
+function lxc_setup() 
+{
+
+	#Install LXC (and its dependencies)
+	echo "Beginning installation. Installing lxc on your machine"
+	sudo yum -y install epel-release
+	sudo  yum -y install lxc lxc-templates libcap-devel libcgroup wget bridge-utils lxc-extra
--skip-broken
+	echo "LXC installation complete."
+
+
+	lxcInterface=""
 
 Review comment:
   iirc, camel-case convention for variable names is java-only. use under-scores here eg:
lxc_interface

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