Grafana
It is a multi-platform open source analytics and interactive visualization web application.that allow you to analyze and display data from various sources in real time.it provides a powerful and flexible way to create interactive dashboards,graphs,charts for monitoring and analyzing metrics,logs,other time series data.
Grafana Installation
Prerequisites
Install Grafana on CentOS 8
Grafana can be installed on CentOS 8 from YUM repository or by manually downloading and installing .rpm package. The former is preferred method since it is easy to update and uninstall Grafana with the yum package manager.
Add Grafana 8 YUM repository
Run the commands below as user with sudo privileges or as root user to add repository content.
cat <<EOF | sudo tee /etc/yum.repos.d/grafana.repo
[grafana]
name=grafana
baseurl=https://packages.grafana.com/oss/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
EOF
You can optionally update you cache index for available packages:
sudo dnf makecache
Install Grafana 8 on CentOS 8
When repository for Grafana has been configured, Grafana can be easily installed by running the commands below:
sudo dnf -y install grafana
Package info:
$ rpm -qi grafana
Name : grafana
Version : 8.0.4
Release : 1
Architecture: x86_64
Install Date: Fri 02 Jul 2021 02:05:25 AM EAT
Group : default
Size : 181997268
License : "Apache 2.0"
Signature : RSA/SHA256, Thu 01 Jul 2021 03:47:43 PM EAT, Key ID 8c8c34c524098cb6
Source RPM : grafana-8.0.4-1.src.rpm
Build Date : Thu 01 Jul 2021 03:47:14 PM EAT
Build Host : 623ddf8d9e19
Relocations : /
Packager : contact@grafana.com
Vendor : Grafana
URL : https://grafana.com
Summary : Grafana
Start Grafana Service
Grafana service is managed by systemd. Start the service and enable it to start on boot.
$ sudo systemctl enable --now grafana-server.service
Synchronizing state of grafana-server.service with SysV service script with /usr/lib/systemd/systemd-sysv-install.
Executing: /usr/lib/systemd/systemd-sysv-install enable grafana-server
Created symlink /etc/systemd/system/multi-user.target.wants/grafana-server.service → /usr/lib/systemd/system/grafana-server.service.
The default port used is 3000. If you have another process using this port, you’ll need to set custom port in Grafana configuration file /etc/grafana/grafana.ini.
http_port = 3000
Your grafana-server service should show running state.
$ systemctl status grafana-server.service
● grafana-server.service - Grafana instance
Loaded: loaded (/usr/lib/systemd/system/grafana-server.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2019-01-10 23:18:24 EAT; 3min 12s ago
Docs: http://docs.grafana.org
Main PID: 2974 (grafana-server)
Tasks: 9 (limit: 11510)
Memory: 17.3M
CGroup: /system.slice/grafana-server.service
└─2974 /usr/sbin/grafana-server --config=/etc/grafana/grafana.ini --pidfile=/var/run/grafana/grafana-server.pid --packaging=rpm cfg:default>
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing CleanUpService" logger=server
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing NotificationService" logger=server
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing ProvisioningService" logger=server
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing PluginManager" logger=server
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Starting plugin search" logger=plugins
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Plugin dir created" logger=plugins dir=/var/lib/grafana/plu>
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing TracingService" logger=server
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="Initializing Stream Manager"
Jan 10 23:18:24 rhel8.local grafana-server[2974]: t=2019-01-10T23:18:24+0300 lvl=info msg="HTTP Server Listen" logger=http.server address=0.0.0.0:3000>
Jan 10 23:18:24 rhel8.local systemd[1]: Started Grafana instance.
Open firewall port for Grafana
If you have a running firewalld service, allow port 3000for access to the dashboard from the network:
sudo firewall-cmd --add-port=3000/tcp --permanent
sudo firewall-cmd --reload
Access Grafana Dashboard
Grafana web dashboard is accessible on http: [Server IP|Hostname]:3000
The default logins are:
username: admin
Password: admin