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| # 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. |
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