sdmoko · November 1, 2019 12:35 · Nov 1, 2019
diff --git a/OpenStack-instances-monitoring-with-Prometheus-Grafana.md b/OpenStack-instances-monitoring-with-Prometheus-Grafana.md
@@ -0,0 +1,155 @@
+# Create Instances for Prometheus Server and Grafana
+
+# Download Prometheus Server
+```
+cd /tmp
+wget -c https://github.com/prometheus/prometheus/releases/download/v2.13.1/prometheus-2.13.1.linux-amd64.tar.gz
+```
+
+# Extract Prometheus Server
+```
+tar zxvf prometheus-2.13.1.linux-amd64.tar.gz
+```
+# Move to some directory
+```
+mv prometheus-2.13.1.linux-amd64 /opt/prometheus-server
+cd /opt/prometheus-server
+```
+# Edit configuration file
+```
+vim config.yml
+```
+```
+# my global config
+ 
+global:
+  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+ 
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+  - static_configs:
+    - targets:
+      # - alertmanager:9093
+ 
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+ 
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  # The job name is added as a label `job=` to any timeseries scraped from this config.
+  - job_name: 'prometheus'
+    static_configs:
+    - targets: ['localhost:9090']
+  - job_name: 'openstack-sd'
+    openstack_sd_configs:
+      - identity_endpoint: https://keystone-url:5000/v3
+        username: username
+        project_id: projectid
+        password: password
+        role: instance 
+        region: region-name
+        domain_name: domain-name
+        port: 9100
+```
+
+# Configure Systemd Service for Prometheus Service
+
+vim /etc/systemd/system/prometheus-server.service
+
+``` 
+[Unit]
+Description=Prometheus Server
+ 
+[Service]
+User=root
+ExecStart=/opt/prometheus-server/prometheus --config.file=/opt/prometheus-server/config.yml --web.external-url=http://ip-server:9090/
+ 
+[Install]
+WantedBy=default.target
+```
+
+# Running Service
+```
+systemctl daemon-reload
+systemctl enable prometheus-server.service
+systemctl start prometheus-server.service
+```
+
+# Verification Service
+```
+systemctl status prometheus-server.service
+ss -tulpn |grep 9090
+```
+
+# Install Grafana
+```
+cd /tmp
+wget -c https://dl.grafana.com/oss/release/grafana_6.4.3_amd64.deb
+dpkg -i grafana_6.4.3_amd64.deb
+```
+
+# Running Service
+```
+systemctl daemon-reload
+systemctl start grafana-server
+systemctl enable grafana-server
+```
+
+# Verification
+```
+systemctl status grafana-server
+ss -tulpn | grep 3000
+```
+
+# Configura Datasource and Dashboard on Grafana
+
+- Login to Grafana 
+- Add data source
+- Choose Prometheus
+```
+Name: Prometheus
+Http settings
+URL: http://localhost:9090
+```
+- Save and Test
+- Add Dashboard
+
+
+# Create new instance with node exporter
+
+# Install node-exporter on ubuntu instances
+```
+cd /tmp/
+wget -c https://github.com/prometheus/node_exporter/releases/download/v0.18.1/node_exporter-0.18.1.linux-amd64.tar.gz
+tar zxvf node_exporter-0.18.1.linux-amd64.tar.gz 
+mv node_exporter-0.18.1.linux-amd64 /opt/node_exporter
+```
+
+# Create systemd service and running node-exporter
+```
+cat << EOF >/etc/systemd/system/node_exporter.service
+[Unit]
+Description=Node Exporter
+ 
+[Service]
+User=root
+ExecStart=/opt/node_exporter/node_exporter
+ 
+[Install]
+WantedBy=default.target
+EOF
+ 
+systemctl daemon-reload
+systemctl enable node_exporter.service
+systemctl start node_exporter.service
+systemctl status node_exporter.service
+```
+
+
+