Prometheus Installation in RHEL 8 - Mithun Technologies - 9980923226

Mithun Technologies            +91-9980923226              devopstrainingblr@gmail.com

                                                       http://mithuntechnologies.com/
                                                       http://mithuntechnologies.co.in/ 

Prometheus  Installation

#Login as a root user

sudo su -

yum install wget -y

Create a new User called prometheus.

useradd -m -s /bin/bash prometheus

Switch to the prometheus user and download the Prometheus software.

su - prometheus

wget https://github.com/prometheus/prometheus/releases/download/v2.19.2/prometheus-2.19.2.linux-amd64.tar.gz

Extract the prometheus-2.19.2.linux-amd64.tar.gz file and rename the directory to 'prometheus'.

tar -xvf prometheus-2.19.2.linux-amd64.tar.gz
mv prometheus-2.19.2.linux-amd64/ prometheus/

Create a new 'data' directory that will be used as a 'tsdb' storage.

mkdir -p ~/prometheus/data

Configure Prometheus As a Systemd Service

Create new service file 'prometheus.service' using vi editor in  '/etc/systemd/system/' directory

vi /etc/systemd/system/prometheus.service

Paste the prometheus service configuration below.

[Unit]
Description=Prometheus Server
Documentation=https://prometheus.io/docs/introduction/overview/
After=network-online.target

[Service]
User=prometheus
Restart=on-failure

#Change this line if you download the
#Prometheus on different path user
ExecStart=/home/prometheus/prometheus/prometheus \
  --config.file=/home/prometheus/prometheus/prometheus.yml \
  --storage.tsdb.path=/home/prometheus/prometheus/data

[Install]
WantedBy=multi-user.target


Now reload the systemd system using the systemctl command below.

 systemctl daemon-reload

Start the prometheus service and enable it to launch everytime at system startup.

systemctl enable prometheus

sudo systemctl start prometheus


systemctl status prometheus

systemctl status prometheus

http://10.5.5.15:9090/graph

ELK Stack Installation - Mithun Technologies - 9980923226

Mithun Technologies            +91-9980923226              devopstrainingblr@gmail.com

                                                       http://mithuntechnologies.com/
                                                       http://mithuntechnologies.co.in/ 

ELK  Stack Installation

#Login as a root user

sudo su -

Install Elastic Search
---------------------------

#rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Create a file called elasticsearch.repo in the /etc/yum.repos.d/ directory for RedHat based distributions and Added below lines

#vi /etc/yum.repos.d/elasticsearch.repo

[elasticsearch]
name=Elasticsearch repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=0
autorefresh=1
type=rpm-md

Install the Elasticsearch package

#yum install --enablerepo=elasticsearch elasticsearch -y

To configure Elasticsearch to start automatically when the system boots up, run the following commands:

#/bin/systemctl daemon-reload

#/bin/systemctl enable elasticsearch.service

Start the Elasticsearch service as follows.

#systemctl start elasticsearch.service

Directory Structure for Elastic Search

https://www.elastic.co/guide/en/elasticsearch/reference/current/rpm.html

Kibana
-----

rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

vi /etc/yum.repos.d/kibana.repo


[kibana-7.x]
name=Kibana repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md



yum install kibana -y


systemctl enable kibana.service

https://www.elastic.co/guide/en/kibana/7.8/rpm.html#rpm-repo


Logstash
---------
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

vi /etc/yum.repos.d/logstash.repo

[logstash-7.x]
name=Elastic repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md


 yum install logstash -y


systemctl enable logstash.service

systemctl start logstash.service

Grafana Installation - Linux RHEl - 8 - Mithun Technologies - 9980923226

Mithun Technologies            +91-9980923226              devopstrainingblr@gmail.com

                                                       http://mithuntechnologies.com/
                                                       http://mithuntechnologies.co.in/ 

Grafana Installation

#Login as a root user

sudo su -

#Create file called grafana.repo in /etc/yum.repos.d directory and add the below content.

vi /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

#Install the grafana.
yum install grafana -y

#Enable the grafana-server service.

systemctl daemon-reload

systemctl enable grafana-server

#Start the grafana-server service.

systemctl start grafana-server

#Check  the grafana-server service status.

service grafana-server status

Troubleshooting
---------------------

Unable to access Grafana URL?
----------------------------------------

https:<<IP Address>>:3000/

Deafult Credentails

User Name: admin

Password:  admin

a)make sure port 3000 is opened in security groups in AWS ec2 instance.