Nomad
Rundeck
Nomad | Rundeck | |
---|---|---|
109 | 26 | |
15,535 | 5,818 | |
0.9% | 1.1% | |
9.9 | 9.9 | |
1 day ago | 3 days ago | |
Go | Groovy | |
GNU General Public License v3.0 or later | 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.
Nomad
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IBM Completes Acquisition of HashiCorp
20k+ nodes and 200k+ allocs. To be fair, Kubernetes cannot support this large of a cluster.
Most of my issues with it aren't related to the scale though. I wasn't involved in the operations of the cluster, I was just a user of Nomad trying to run a few thousand stateful allocs. Without custom resources and custom controllers, managing stateful services was a pain in the ass. Critical bugs would also often take years to get fixed. I had lots of fun getting paged in the middle of the night because 2 allocs would suddenly decide they now have the same index (https://github.com/hashicorp/nomad/issues/10727)
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Dear friend, you have built a Kubernetes
https://github.com/hashicorp/nomad/blob/v1.6.0/website/conte... seems to have existed since before the license rug-pull. However I'm open to there being some miscommunication because https://developer.hashicorp.com/nomad/docs/glossary doesn't mention the word "control" and the word "host" could mean any number of things in this context
- Nomad: Simple, flexible scheduler, orchestrator to deploy and manage containers
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Faster, Easier Deployments: How We Simplified Our Infrastructure with Nomad in 15 Hours (Goodbye, Kubernetes!)
Nomad: The Oasis in Our Infrastructure Desert
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Building a highly-available web service without a database
> I should have just used on-disk mode from the start, but only now know better.
Yeah, I saw the recent post about reducing rqlite disk space usage. Using the on-disk sqlite as both the FSM and the Raft snapshot makes a lot of sense here. I'm curious whether you've had concerns about write amplification though? Because we have only the periodic Raft snapshots and the FSM is in-memory, during high write volumes we're only really hammering disk with the Raft logs.
> Do you find it in the field much with Nomad? I've managed to introduce new Raft Entry types very infrequently during rqlite's 10-years of development, only once did someone hit it in the field with rqlite.
My understanding is that rqlite Raft entries are mostly SQL statements (is that right?). Where Nomad is somewhat different (and probably closer to the OP) is that the Raft entries are application-level entries. For entries that are commands like "stop this job"[0] upgrades are simple.
The tricky entries are where the entry is "upsert this large deeply-nested object that I've serialized", like the Job or Node (where the workloads run). The typical bug here is you've added a field way down in the guts of one of these objects that's a pointer to a new struct. When old versions deserialize the message they ignore the new field and that's easy to reason about. But if the leader is still on an old version and the new code deserializes the old object, you need to make sure you're not missing any nil pointer checks. Without sum types enforced at compile time (i.e. Option/Maybe), we have to catch all these via code review and a lot of tedious upgrade testing.
> it requires discipline on the part of the end-users too.
Oh for sure. Nomad runs into some commercial realities here around how much discipline we can demand from end-users. =)
[0] https://github.com/hashicorp/nomad/blob/v1.8.2/nomad/fsm.go#...
- We migrated onto K8s in less than 12 months
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Kubernetes Simplified: A Comprehensive Introduction for Beginners
However, Mesos has a steeper learning curve compared to Kubernetes and may require more expertise to manage effectively. For those seeking a simpler but less feature-rich alternative, HashiCorp's Nomad is worth considering.
- No Need For Docker Anymore
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The coming eBPF revolution and why Kubernetes monitoring will never be the same
Just wanting to understand the definition of Open Source you are using here, considering that you can see and download the source here:
https://github.com/hashicorp/nomad
Are you maybe referring to their Enterprise offering?
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Containers Orchestration and Kubernetes
Even though this article will be focused on Kubernetes I want to mention that there are multiple container orchestration platforms such as Mesos, Docker Swarm, OpenShift, Rancher, Hashicorp Nomad, etc.
Rundeck
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Python script manager
I don't use it myself, but I think rundeck might be what you're looking for
- self hosted Alternative to easycron.com?
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Best (Python) Script Orchestrator?
Have a look at rundeck.org
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Job options visible on the left side of the job summary screen
Not possible at this moment, please suggest that here.
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Killing an unkillable job.
Hi, that's an odd issue (never happened on my env, but reported here), you can try this or this.
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Any multi-vps control panel to manage screens and containers?
If you want a web panel, I believe you could achieve that with Rundeck.
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LDAP notes
I found this info here and here.
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Process Automation and Rundeck version 4.5.0 is live!
Changing default SCM SSH authentication to SSHJ: The SCM integration now uses SSHJ for SSH authentication by default (previously JSCH). GitHub has tightened up their SSH key requirements and now requires SSH-RSA 2 keys. The new default for ssh-keygen via OpenSSH is not supported by JSCH.
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How to setup a containerized python environment? Function as a Service or an alternative solution for a Python execution environment.
Firstly, I tried Rundeck and Apache Airflow. They are complete overkill for what I want to do. Then I found Cronicle which is light enough, besides it can pull double duty as a general purpose scheduler.
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Important Advisory: PagerDuty Process Automation On Prem / Rundeck Key Pair Misconfiguration
Yesterday we posted a Security Advisory to Github for a critical vulnerability in Rundeck Community and Rundeck Enterprise Docker images, versions 4.0 and earlier. Those Docker images contained a pre-generated SSH key pair in the default file path. If that key was used to configure SSH access to hosts, they would allow access to anyone with the exposed private key.
What are some alternatives?
Dkron - Dkron - Distributed, fault tolerant job scheduling system https://dkron.io
StackStorm - StackStorm (aka "IFTTT for Ops") is event-driven automation for auto-remediation, incident responses, troubleshooting, deployments, and more for DevOps and SREs. Includes rules engine, workflow, 160 integration packs with 6000+ actions (see https://exchange.stackstorm.org) and ChatOps. Installer at https://docs.stackstorm.com/install/index.html
SaltStack - Software to automate the management and configuration of infrastructure and applications at scale.
kubernetes - Production-Grade Container Scheduling and Management
semaphore - Modern UI and powerful API for Ansible, Terraform/OpenTofu/Terragrunt, PowerShell and other DevOps tools.