install elasticsearch-head on CentOS 7.3

ref

install eleasticsearch on CentOS 7.3 - AKAI TSUKI

environment

hostname	ip	node
cent7no31	172.16.10.231	Coordinating node, elasticsearch-head

pre install

install bzip2 and lbzip2 for tar command.

# yum install bzip2
# yum install lbzip2

install git and nodejs

# yum install -y git
# yum install -y epel-release
# yum install -y nodejs

install elasticsearch-head

GitHub - mobz/elasticsearch-head: A web front end for an elastic search cluster

install

# git clone git://github.com/mobz/elasticsearch-head.git
# cd elasticsearch-head
# npm install
> phantomjs-prebuilt@2.1.16 install /root/elasticsearch-head/node_modules/phantomjs-prebuilt
> node install.js

PhantomJS not found on PATH
Download already available at /tmp/phantomjs/phantomjs-2.1.1-linux-x86_64.tar.bz2
Verified checksum of previously downloaded file
Extracting tar contents (via spawned process)
Removing /root/elasticsearch-head/node_modules/phantomjs-prebuilt/lib/phantom
Copying extracted folder /tmp/phantomjs/phantomjs-2.1.1-linux-x86_64.tar.bz2-extract-1509856016577/phantomjs-2.1.1-linux-x86_64 -> /root/elasticsearch-head/node_modules/phantomjs-prebuilt/lib/phantom
Writing location.js file
Done. Phantomjs binary available at /root/elasticsearch-head/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs
elasticsearch-head@0.0.0 /root/elasticsearch-head

*snip*

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN elasticsearch-head@0.0.0 license should be a valid SPDX license expression
#

note

When I execute npm install, error occured as follows:

# npm install
npm: relocation error: npm: symbol SSL_set_cert_cb, version libssl.so.10 not defined in file libssl.so.10 with link time reference
#

so, I execute command as follows:

# yum update openssl

start elasticsearch-head

[root@cent7no31 ~]# cd elasticsearch-head/
[root@cent7no31 elasticsearch-head]# npm run start

> elasticsearch-head@0.0.0 start /root/elasticsearch-head
> grunt server

Running "connect:server" (connect) task
Waiting forever...
Started connect web server on http://localhost:9100

configure elasticsearch

add two parameters to elasticsearch.yml

# vi /etc/elasticsearch/elasticsearch.yml

http.cors.enabled: true
http.cors.allow-origin: "*"

as a result,

# grep -v "^#" /etc/elasticsearch/elasticsearch.yml | grep -v "^$"
cluster.name: test-cluster
node.name: cent7no31
network.host: 0.0.0.0
discovery.zen.ping.unicast.hosts: ["cent7no11", "cent7no12", "cent7no13", "cent7no31"]
node.master: false
node.data: false
node.ingest: false
http.cors.enabled: true
http.cors.allow-origin: "*"
#