alertmanager
node_exporter
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alertmanager | node_exporter | |
---|---|---|
13 | 78 | |
6,233 | 10,132 | |
1.7% | 2.7% | |
9.2 | 8.9 | |
about 10 hours ago | 4 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
alertmanager
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My Raspberry Pi 4 Dashboard
- Alert Manager
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Uptime monitoring (~1000 urls)
You could use prometheus as a monitoring tool, blackbox_exporter to "export" the urls to prometheus, alertmanager for notifications, and grafana for nice gui dashboards (and maybe also notifications).
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Ultra Monitoring with Victoria Metrics
vmalert: executes a list of the given alerting or recording rules against configured data sources. For sending alerting notifications vmalert relies on configured Alertmanager. Recording rules results are persisted via remote write protocol. vmalert is heavily inspired by Prometheus implementation and aims to be compatible with its syntax
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Can Prometheus act similar to OPC A&E server?
Yes, I believe you can do all of what you're looking for without a UI. The alertmanager api has the ability to register receivers as well as to poll for alerts, silence them, etc: https://github.com/prometheus/alertmanager/blob/main/api/v2/openapi.yaml
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Part I: EC2 with Prometheus
#cloud-config # environment: ${environment} runcmd: # install AWS CLI, neeeded for downloading of configuration files - | apt-get update && apt-get install unzip -y curl -Lo awscli.zip https://awscli.amazonaws.com/awscli-exe-linux-aarch64.zip unzip awscli.zip ./aws/install rm awscli.zip # install prometheus binary - | curl -Lo prometheus.tar.gz https://github.com/prometheus/prometheus/releases/download/v2.33.1/prometheus-2.33.1.linux-arm64.tar.gz tar -xvf prometheus.tar.gz cp ./prometheus-2.33.1.linux-arm64/prometheus /usr/local/bin/prometheus rm -rf ./prometheus-2.33.1.linux-arm64 rm -rf prometheus.tar.gz # install alertmanager binary - | curl -Lo alertmanager.tar.gz https://github.com/prometheus/alertmanager/releases/download/v0.23.0/alertmanager-0.23.0.linux-arm64.tar.gz tar -xvf alertmanager.tar.gz mv ./alertmanager-0.23.0.linux-arm64/alertmanager /usr/local/bin/alertmanager rm -rf alertmanager-0.23.0.linux-arm64 rm alertmanager.tar.gz # vait for EBS volume - | while [ ! -b $(readlink -f /dev/nvme1n1) ]; do echo "waiting for device /dev/nvme1n1" sleep 5 done # format volume blkid $(readlink -f /dev/nvme1n1) || mkfs -t ext4 $(readlink -f /dev/nvme1n1) # create a mount mkdir -p /data if ! grep "/dev/nvme1n1" /etc/fstab; then echo "/dev/nvme1n1 /data ext4 defaults,discard 0 0" >> /etc/fstab fi # mount volume mount /data # enable and start systemd services - | systemctl daemon-reload systemctl enable prepare-prometheus.service && systemctl start prepare-prometheus.service && sleep 10 systemctl enable prometheus.service && systemctl start prometheus.service systemctl enable alertmanager.service && systemctl start alertmanager.service write_files: - path: /usr/local/bin/prepare-prometheus permissions: '0744' content: | #!/bin/sh mkdir -p /etc/prometheus aws s3 cp s3://${s3_bucket}/prometheus.yaml /etc/prometheus/prometheus.yaml aws s3 cp s3://${s3_bucket}/alertmanager.yaml /etc/prometheus/alertmanager.yaml aws s3 cp s3://${s3_bucket}/prometheus.rules.yaml /etc/prometheus/prometheus.rules.yaml curl -X POST http://localhost:9090/-/reload || true - path: /etc/systemd/system/prepare-prometheus.service content: | [Unit] Description=Prepare prometheus / alertmanager configuration Wants=network-online.target After=network-online.target [Service] Type=oneshot ExecStart=/usr/local/bin/prepare-prometheus # please note data.mount in dependencies - path: /etc/systemd/system/prometheus.service content: | [Unit] Description=Prometheus Wants=network-online.target After=network-online.target data.mount prepare-prometheus.service [Service] Type=simple ExecStart=/usr/local/bin/prometheus \ --config.file /etc/prometheus/prometheus.yaml \ --storage.tsdb.path /data/ \ --web.enable-lifecycle \ --web.console.templates=/etc/prometheus/consoles \ --web.console.libraries=/etc/prometheus/console_libraries \ --enable-feature=remote-write-receiver [Install] WantedBy=multi-user.target - path: /etc/systemd/system/alertmanager.service content: | [Unit] Description=Alert Manager Wants=network-online.target After=network-online.target data.mount prepare-prometheus.service [Service] Type=simple ExecStart=/usr/local/bin/alertmanager \ --config.file /etc/prometheus/alertmanager.yaml \ --storage.path=/data/ [Install] WantedBy=multi-user.target
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It took almost a full day, but I finally got a decent homelab diagram :D Feedback is most welcome!
Prometheus)Alertmanager: https://github.com/prometheus/alertmanager | https://prometheus.io/
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Finally got a landing page built for my little lab, after much inspiration from this sub!
At a high level, I use various Prometheus exporters, including node-exporter and some simple custom exporters, which can then be consumed by Grafana for dashboards, Alert Manager for sending PushOver notifications, and my own web apps for displaying custom metrics. Hope that helps :)
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Architecting your Cloud Native Infrastructure
In any such scenarios, a tool like Prometheus can act as the time series database to collect all the metrics for you along with something like OpenTelemetry to expose metrics from the application and the various tools using inbuilt exporters, Alertmanager to send notifications and alerts to multiple channels, Grafana as the dashboard to visualize everything at one place and so on giving users a complete visibility on the infrastructure as a whole.
node_exporter
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Prometheus Fundamentals (Lesson-01)
$ wget https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz $ tar -xzvf node_exporter-1.7.0.linux-amd64.tar.gz
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List of your reverse proxied services
Node Exporter
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Tool to monitor disk space
I use Grafana + Prometheus + Node Exporter.
- Is there a dashboard of sorts that can keep track of my linux-based computers and VMs to that I can easily see if any of them have updates or are running low on storage and et cetera?
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Questions about Kubernetes
Kubernetes itself will not notify you, the way I've seen people do this, is to use something like kube-state-metrics or node_exporter, export that to Prometheus (or preferrably VictoriaMetrics because Prometheus is terrible IMO), and then setup alarms on that with alertmanager or equivalent, or just look at dashboards regularly with Grafana. Realistically I recommend only setting alerts on disk usage and application/database latency. CPU and memory utilization isn't a great metric to alert on a lot of the time.
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multi line regex help
A good example of hwmon parsing can be found in hwmon_linux.go.
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Does anyone know of a guide for installing snmp_exporter on ASUS router running merlin firmware?
The only issue is ASUS has weird kernel patches and you will need to use --no-collector.netdev.netlink to work around them.
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Monitoring Linux instances with Prometheus andĀ Grafana
$ wget https://github.com/prometheus/node_exporter/releases/download/v1.0.1/node_exporter-1.0.1.linux-amd64.tar.gz Uncompress and rename the folder $ tar xvf node_exporter-1.0.1.linux-amd64.tar.gz $ mv node_exporter-1.0.1.linux-amd64 ne_files
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My Rust journey and how to learn Rust
Since I have a specific problem that needs to be solved, I need to implement a node_exporter to complete the transformation of the monitoring stack. So I learned Rust through the learning-by-doing mode.
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AWS EC2 Auto Scaling, Target Tracking Policies and Prometheus Exporters
#!/bin/bash yum update -y # Install CWA yum install amazon-cloudwatch-agent -y # Install Nginx and configure the stub status module amazon-linux-extras install nginx1.12 -y aws ssm get-parameter --name {{ nginx_stub_status_config_parameter_path }} --region {{ region }} --output text --query Parameter.Value > {{ nginx_config_file_path }} # Add a user to run the exporters useradd --no-create-home metrics_exporter # Install Node Exporter wget https://github.com/prometheus/node_exporter/releases/download/v1.4.0/node_exporter-1.4.0.linux-amd64.tar.gz tar xzf node_exporter-1.4.0.linux-amd64.tar.gz cp node_exporter-1.4.0.linux-amd64/node_exporter /usr/local/bin/node_exporter rm -rf node_exporter-1.4.0.linux-amd64.tar.gz node_exporter-1.4.0.linux-amd64 # Create Node Exporter systemd service cat << 'EOF' > /etc/systemd/system/node-exporter.service [Unit] Description=Prometheus Node Exporter Service After=network.target [Service] User=metrics_exporter Group=metrics_exporter Type=simple ExecStart=/usr/local/bin/node_exporter [Install] WantedBy=multi-user.target EOF # Install Nginx Exporter wget https://github.com/nginxinc/nginx-prometheus-exporter/releases/download/v0.11.0/nginx-prometheus-exporter_0.11.0_linux_amd64.tar.gz tar xzf nginx-prometheus-exporter_0.11.0_linux_amd64.tar.gz cp nginx-prometheus-exporter /usr/local/bin/nginx-prometheus-exporter rm -rf nginx-prometheus-exporter_0.11.0_linux_amd64.tar.gz nginx-prometheus-exporter # Create Nginx Exporter systemd service cat << 'EOF' > /etc/systemd/system/nginx-prometheus-exporter.service [Unit] Description=Prometheus Nginx Exporter Service After=network.target [Service] User=metrics_exporter Group=metrics_exporter Type=simple ExecStart=/usr/local/bin/nginx-prometheus-exporter -nginx.scrape-uri http://127.0.0.1:{{ nginx_stub_status_port }}/metrics -web.listen-address=127.0.0.1:9113 [Install] WantedBy=multi-user.target EOF # Configure CWA aws ssm get-parameter --name {{ cwa_prometheus_parameter_path }} --region {{ region }} --with-decryption --output text --query Parameter.Value > /opt/aws/amazon-cloudwatch-agent/etc/prometheus.yml /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c ssm:"{{ cwa_settings_parameter_path }}" -s # Start everything up systemctl daemon-reload systemctl enable nginx systemctl start nginx systemctl enable node-exporter systemctl start node-exporter systemctl enable nginx-prometheus-exporter systemctl start nginx-prometheus-exporter
What are some alternatives?
cadvisor - Analyzes resource usage and performance characteristics of running containers.
process-exporter - Prometheus exporter that mines /proc to report on selected processes
Grafana - The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
Netdata - Monitor your servers, containers, and applications, in high-resolution and in real-time.
ping_exporter - Prometheus exporter for ICMP echo requests using https://github.com/digineo/go-ping
fortigate_exporter - Prometheus exporter for Fortigate firewalls
windows_exporter - Prometheus exporter for Windows machines
prometheus - The Prometheus monitoring system and time series database.
node-exporter-textfile-collector-scripts - Scripts for node-exporter's textfile collector
loki - Like Prometheus, but for logs.
yet-another-cloudwatch-exporter - Prometheus exporter for AWS CloudWatch - Discovers services through AWS tags, gets CloudWatch metrics data and provides them as Prometheus metrics with AWS tags as labels
filestat_exporter - Prometheus exporter gathering metrics about file size, modification time and other stats