How to install Prometheus Server on Centos Linux and Integrate it with Grafana Server #prometheus

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This tutorial helps you to configure Prometheus Server on Centos Linux and integrate it with Grafana as a Data Source.

The following commands has been used under this Tutorial:

# Add Prometheus User
useradd --no-create-home --shell /bin/false prometheus

# Create diectory and change ownership
mkdir /etc/prometheus
mkdir /var/lib/prometheus
chown prometheus:prometheus /etc/prometheus
chown prometheus:prometheus /var/lib/prometheus

#Extract Prmetheus file & rename it.

# Copy “prometheus” and “promtool” binary and change ownership

cp prometheuspackage/prometheus /usr/local/bin/
cp prometheuspackage/promtool /usr/local/bin/
chown prometheus:prometheus /usr/local/bin/prometheus
chown prometheus:prometheus /usr/local/bin/promtool

# Copy “consoles” and “console_libraries”
cp -r prometheuspackage/consoles /etc/prometheus
cp -r prometheuspackage/console_libraries /etc/prometheus
chown -R prometheus:prometheus /etc/prometheus/consoles
chown -R prometheus:prometheus /etc/prometheus/console_libraries

# Configure Prmetheus

global:
scrape_interval: 10s

scrape_configs:
- job_name: 'prometheus_master'
scrape_interval: 5s
static_configs:
- targets: ['SERVER_IP:9090']

# Change the ownership

[Unit]
Description=Prometheus
[Service]
User=prometheus
Group=prometheus
Type=simple
ExecStart=/usr/local/bin/prometheus \
[Install]

#start service
systemctl daemon-reload
systemctl start prometheus
systemctl status prometheus

Install Node Exporter

useradd -rs /bin/false nodeusr

[Unit]
Description=Node Exporter
[Service]
User=nodeusr
Group=nodeusr
Type=simple
ExecStart=/usr/local/bin/node_exporter
[Install]

systemctl daemon-reload
systemctl start node_exporter
systemctl enable node_exporter

Login on Prometheus server again
- job_name: 'node_exporter_centos'
scrape_interval: 5s
static_configs:
- targets: ['CLIENT_IP:9100']

systemctl restart prometheus

Select
Node_memory_MemFree_bytes

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i need support install data sources error "Error reading Prometheus: bad_response: readObjectStart: expect { or n, but found <, error found in #1 byte of ...|<html> <|..., bigger context ...|<html> <head><title>Node Exporter</title></head>|..."

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I have installed Prometheus on the centos7 vm via virtual box, but it can't open in the Mozilla web browser, is there something wrong?

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