Prometheus Pushgateway Installation, Configuration and Using tutorials.

Prometheus-Pushgateway-Installation-Configuration-and-Using-tutorials.sh

# Get the latest version of pushgateway from prometheus.io, then download and extract:
$ wget https://github.com/prometheus/pushgateway/releases/download/v0.8.0/pushgateway-0.8.0.linux-amd64.tar.gz
$ tar -xvf pushgateway-0.8.0.linux-amd64.tar.gz

# Create the pushgateway user:
$ useradd --no-create-home --shell /bin/false pushgateway

# Move the binary in place and update the permissions to the user that we created:
$ cp pushgateway-0.8.0.linux-amd64/pushgateway /usr/local/bin/pushgateway
$ chown pushgateway:pushgateway /usr/local/bin/pushgateway

# Create the systemd unit file:
$ cat > /etc/systemd/system/pushgateway.service << EOF
[Unit]
Description=Prometheus Pushgateway
Wants=network-online.target
After=network-online.target

[Service]
User=pushgateway
Group=pushgateway
Type=simple
ExecStart=/usr/local/bin/pushgateway

[Install]
WantedBy=multi-user.target
EOF

# Reload systemd and restart the pushgateway service:
$ systemctl daemon-reload
$ systemctl restart pushgateway

# Ensure that pushgateway has been started:
$ systemctl status pushgateway


# Configure Prometheus

$ cat /etc/prometheus/prometheus.yml
global:
  scrape_interval: 15s

scrape_configs:
  - job_name: 'prometheus'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9090']

  - job_name: 'node_exporter'
    scrape_interval: 5s
    static_configs:
      - targets: ['localhost:9100']

  - job_name: 'pushgateway'
    honor_labels: true
    static_configs:
      - targets: ['localhost:9091']


$ systemctl restart prometheus



# Push metrics to pushgateway
# First we will look at a bash example to push metrics to pushgateway:
$ echo "cpu_utilization 20.25" | curl --data-binary @- http://localhost:9091/metrics/job/my_custom_metrics/instance/10.20.0.1:9000/provider/hetzner

# Have a look at pushgateway’s metrics endpoint:
$ curl -L http://localhost:9091/metrics/
# TYPE cpu_utilization untyped
cpu_utlization{instance="10.20.0.1:9000",job="my_custom_metrics",provider="hetzner"} 20.25

# Python example on how we can push metrics to pushgateway:

import requests

job_name='my_custom_metrics'
instance_name='10.20.0.1:9000'
provider='hetzner'
payload_key='cpu_utilization'
payload_value='21.90'

response = requests.post('http://localhost:9091/metrics/job/{j}/instance/{i}/team/{t}'.format(j=job_name, i=instance_name, t=team_name), data='{k} {v}\n'.format(k=payload_key, v=payload_value))
print(response.status_code)

With this method, you can push any custom metrics (bash, lambda function, etc) to pushgateway and allow prometheus to consume that data into it’s time series database.