Install InfluxDB on RHEL / Centos 7

In this tutorial, How to install InfluxDB on RHEL / Centos 7. InfluxDB is an open source time series database. It is High availability storage and optimized for fast and metrics analysis.

Install InfluxDB on RHEL / Centos 7

The first, You adding InfluxDB repository to your system using the command as below

[vagrant@DevopsRoles ~]$ sudo vi  /etc/yum.repos.d/influxdb.repo

Add the content as below:

[influxdb]
name = InfluxDB Repository
baseurl = https://repos.influxdata.com/rhel/7/x86_64/stable/
enabled = 1
gpgcheck = 1
gpgkey = https://repos.influxdata.com/influxdb.key

Install InfluxDB

[vagrant@DevopsRoles ~]$ sudo yum -y install influxdb

Start InfluxDB services on RHEL / Centos 7

[vagrant@DevopsRoles ~]$ sudo systemctl enable influxdb
[vagrant@DevopsRoles ~]$ sudo systemctl start influxdb

To check status InfluxDB is running

[vagrant@DevopsRoles ~]$ sudo systemctl status influxdb

Configure InfluxDB Firewall on RHEL / Centos 7

The default, InfluxDB using TCP port 8086 for client-server communication over HTTP API and TCP port 8088 used for backup and restore.

Open port on the Firewall use command below

[vagrant@DevopsRoles ~]$ sudo firewall-cmd --add-port=8086/tcp --permanent
[vagrant@DevopsRoles ~]$ sudo firewall-cmd --reload

Configure InfluxDB http Authentication on RHEL / Centos 7

Enable http authentication

[vagrant@DevopsRoles ~]$ sudo vi /etc/influxdb/influxdb.conf

Add the content as below:

[http]
 auth-enabled = true

Restart InfluxDB service.

[vagrant@DevopsRoles ~]$ sudo systemctl restart influxdb

Create a user with an Authentication password

[vagrant@DevopsRoles ~]$ curl -XPOST "http://localhost:8086/query" --data-urlencode "q=CREATE USER \
username WITH PASSWORD 'password' WITH ALL PRIVILEGES"

You need running any Influxdb commands on the terminal with specify username and password.

[vagrant@DevopsRoles ~]$ influx -username 'username' -password 'password'

Example curl command use -u option to specify username and password.

[vagrant@DevopsRoles ~]$ curl -G http://localhost:8086/query -u username:password --data-urlencode "q=SHOW DATABASES"

Check Influxdb service is listening

[vagrant@DevopsRoles ~]$ sudo netstat -nplt | grep 8086

You have Installed InfluxDB on your system.