cadvisor VS Healthchecks

cAdvisor is a container monitoring tool that provides detailed metrics about Docker containers, including network usage.

Find more details here

cAdvisor

https://github.com/google/cadvisor exports Prometheus metrics, but also offers a simple web-ui for container metrics.

version: '3' volumes: prometheus-data: driver: local grafana-data: driver: local services: prometheus: image: prom/prometheus:latest container_name: prometheus ports: - "9090:9090" volumes: - /etc/prometheus:/etc/prometheus - prometheus-data:/prometheus restart: unless-stopped command: - "--config.file=/etc/prometheus/prometheus.yml" grafana: image: grafana/grafana:latest container_name: grafana ports: - "3000:3000" volumes: - grafana-data:/var/lib/grafana restart: unless-stopped node_exporter: image: quay.io/prometheus/node-exporter:latest container_name: node_exporter command: - '--path.rootfs=/host' pid: host restart: unless-stopped volumes: - '/:/host:ro,rslave' cadvisor: # TODO: latest tag is not updated, check latest release https://github.com/google/cadvisor/releases image: gcr.io/cadvisor/cadvisor-arm:v0.47.0 container_name: cadvisor ports: - "8080:8080" network_mode: host volumes: - /:/rootfs:ro - /var/run:/var/run:ro - /sys:/sys:ro - /var/lib/docker/:/var/lib/docker:ro - /dev/disk/:/dev/disk:ro privileged: true restart: unless-stopped depends_on: - redis redis: image: redis:latest container_name: redis ports: - "6379:6379"

For CPU and memory metrics, you can use cAdvisor to collect container level data.

Perhaps https://github.com/google/cadvisor + prometheus (or influx or whatever else) + grafana?

We could have used a much more focussed tool like Prometheus or Cadvisor to gather system stats, but that is not the main objective of this article.

I’ll suggest an alternative below, but before, I want to say, even though there are richer and more powerful services, I prefer to keep my monitoring separated and have more control on them. Example: I do have an end-to-end script that browses a few pages and checks stuff using playwright, and I try to keep it experiment plain/simple on purpose. And simply have a bash script that runs the playwright test and pings a check in healthchecks.io when it passes. That monitor is simple enough that I can move to any other service, or move the test from where it runs to another place without worrying any vendor lock. Instead, I would have used a service like checkly but it would lock me in right away. In short, I like how healthchecks.io contributes this decoupled model and plays a central reporting engine for my monitors.

This one is great: https://healthchecks.io/

Healthchecks.io

I have a soft spot for cron jobs. But if you use them, I highly recommend you also use the open source runitor tool:

https://github.com/bdd/runitor

... which lets you quickly integrate any cron job with the https://healthchecks.io service. So darn handy. And you're supporting an indie startup whose founder regularly posts on HN.

I use https://healthchecks.io [1] to track backup tasks and alert if they haven't run in X days. With one cURL command at the start and one at the end, I also get alerts immediately if it fails, and can track duration.

[1] recently featured on the front page because it's a one-man company: https://news.ycombinator.com/item?id=41104293

Hey mate, I'm using https://healthchecks.io/ for heartbeat monitoring my crons. It's been working flawlessly for quite some time now. The UI is super clean and easy to navigate. It's also free up to 20 monitored jobs. Note - I'm not in any way related to that project.

In fact, your platform (https://healthchecks.io/) is a prime example of where running customer wasm would be really excellent.

Instead of sending webhooks out to customer configured URLs, you could run a Wasm environment to execute customer code. Off hand, a good use case here is to do further inspection of the event before it gets sent off to some other system - maybe there are cases where you send false-positives and needlessly trigger external system alerts. The customer Wasm could do more introspection on the healthcheck event and make a more informed decision about how to proceed.

i use healthchecks.io and have been very happy

Is there anything different from https://healthchecks.io/ --- a service I've been using for free for a couple years now?