Nomad
Dkron
Our great sponsors
| Nomad | Dkron | |
|---|---|---|
| 35 | 0 | |
| 10,446 | 2,955 | |
| 1.8% | 1.4% | |
| 9.9 | 8.0 | |
| 6 days ago | 11 days ago | |
| Go | Go | |
| Mozilla Public License 2.0 | GNU General Public License v3.0 or later |
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.
Nomad
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What you gonna add to your selfhost stack this year?
Must be hashicorp's nomad: https://www.nomadproject.io/
- My Setup for Self-Hosting Dozens of Web Applications + Services on a Single Server
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Kubernetes at Home with K3s
That's a false statement as far as the technical aspects are concerned (Swarm is still usable and supported), but is a true statement when you look at the social aspects (Kubernetes won the container wars and now even Nomad is uncommon to run into).
Right now the company i'm in uses Swarm in a lot of places due to its simplicity (Compose file support) and low resource usage - Swarm hits the sweet spot when it comes to getting started with container orchestration and doing so without needing multiple people to wrangle the technical complexity of Kubernetes, or large VMs to deal with its resource usage, at least in on prem environments.
In combination with Portainer (https://www.portainer.io/) it's perhaps one of the best ways to get things done, when you expect everything to just work and aren't doing something too advanced (think along the lines of 10 servers, rather than 100, which is probably most of the deployments out there).
I actually wrote about some of its advantages in my blog post, "Docker Swarm over Kubernetes": https://blog.kronis.dev/articles/docker-swarm-over-kubernete...
That said, if there are any good options to replace Swarm, it has to either be Hashicorp Nomad (https://www.nomadproject.io/) which is a really nice platform, especially when coupled with Consul (https://www.consul.io/), as long as you can get past the weirdness of HCL. Alternatively, it has to be K3s (https://k3s.io/), which gives you Kubernetes without the insane bloat and hardware usage.
I actually benchmarked K3s against Docker Swarm in similar app deployments: 1 leader server, 2 follower servers, running a Ruby on Rails app and an ingress, while they're under load testing by K6 (https://k6.io/). I was attempting to see whether COVID contract tracking with GPS would be viable as far as the system load goes in languages with high abstraction level, here's more info about that: https://blog.kronis.dev/articles/covid-19-contact-tracing-wi...
Honestly, the results were pretty close - on the follower servers, the overhead of the orchestrator agents were a few percent (K3s being heavier, but a few dozen MB here or there not being too relevant), whereas the bigger differences were in the leader components, where K3s was heavier almost by a factor of two, which isn't too much when you consider how lightweight Swarm is (there was a difference of a few hundred MB) and the CPU usage was reasonably close in both of the cases as well. Sadly, the text of the paper is in Latvian, so it's probably of no use to anyone, but i advise you to do your own benchmarks! Being a student, i couldn't afford many servers then, so it's probably a good idea to benchmark those with more servers.
Of note, on those VPSes (4 GB of RAM, single core), the full Kubernetes wouldn't even start, whereas at work, trying to get the resources for also running Rancher on top of a "full" Kubernetes cluster (e.g. RKE) can also take needlessly long due to the backlash from ops. Also, personally i find the Compose syntax to be far easier to deal with, rather than the amalgamation that Kubernetes uses, Helm probably shouldn't even be a thing if the deployment descriptors weren't so bloated. Just look at this: https://docs.docker.com/compose/compose-file/compose-file-v3...
In short:
- Docker Swarm is pretty good when you're starting out with containers and is reasonably stable and easy to use -
Creating GCP disk images with (for?) TerraForm
Also if you don’t want to look at kube then check out Nomad. https://www.nomadproject.io/
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Is cloud native getting a bit too complex?
Hahaha sure: https://www.nomadproject.io it’s by HashiCorp.
- De docker para Kubernetes
- An Update on Our Outage
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Creating my personal cloud with HashiCorp
Yeah, this pains me too. Here's a relevant issue to keep an eye on:
https://github.com/hashicorp/nomad/issues/3854
I've used an nginx-based S3 proxy in the past to get around this. Not ideal but it works.
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Datadog Reveals Hidden AWS Performance Problems
At Lob, we currently use Convox as our deployment platform, a “roll your own Platform-as-a-Service” that you can install to handle container orchestration on AWS’s ECS (Elastic Container Service). Convox is showing its age and this year we began the process of replacing Convox with HashiCorp’s Nomad, a flexible workload orchestrator to deploy and manage our containers on AWS.
Dkron
We haven't tracked posts mentioning Dkron yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
k3s - Lightweight Kubernetes
Rundeck - Enable Self-Service Operations: Give specific users access to your existing tools, services, and scripts
Docker Compose - Define and run multi-container applications with Docker
dapr - Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge.
kubernetes - Production-Grade Container Scheduling and Management
gocelery - Celery Distributed Task Queue in Go
podman - Podman: A tool for managing OCI containers and pods.
SaltStack - Software to automate the management and configuration of any infrastructure or application at scale. Get access to the Salt software package repository here:
Juju - Universal Operator Lifecycle Manager (OLM) for Kubernetes operators, and operators for traditional Linux and Windows apps, with declarative integration between operators for automated microservice integration.
serf - Service orchestration and management tool.
consul - Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
k9s - 🐶 Kubernetes CLI To Manage Your Clusters In Style!