postgres-operator
k3s
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postgres-operator | k3s | |
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33 | 291 | |
3,715 | 26,349 | |
1.8% | 1.5% | |
9.0 | 9.6 | |
3 days ago | 4 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
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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.
postgres-operator
- No disk space crashloop but pod healthy · Issue #3788 · CrunchyData/postgres-operator
- Deploying Postgres on Kubernetes in production
- Anyone using cloudnativepg in production?
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Jolt v0.5.2 is available!
As for the Operators, I've been using Crunchy PGO, which is very high quality, and one of the most widely used. You can install it via Helm, or via OLM from OperatorHub. There are other good ones as well, but none that I have experience with. The only issue I've run into so far is I've had to disable TLS on the database cluster, as Prowlarr refused to connect with it for some reason (Radarr was fine). I still need to open an issue with the Prowlarr team about that, but I might switch to a service mesh for TLS anyway.
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Can someone share experience configuring Highly Available PgSQL?
The Crunchy operator, seemingly like most (if not all) of the other Postgres operators (Zalando, KubeDB, and StackGres, etc.), is essentially a wrapper for Patroni. IMO if someone wanted a Patroni cluster, they would just build one. The point of an operator is to manage the cluster resources and node relationships, so why not have it take the role Patroni is filling here? It's already reaching into the nodes, obtaining status, managing the routing, etc., so why add the extra layer?
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Questions about Kubernetes
On the topic of Postgres, you should look into an operator or Helm chart that can setup common things (like replication and auto-failover), such as Crunchy's Postgres operator, or consider using a "cloud-native" distributed database like CockroachDB (disclaimer: I am a Cockroach Labs employee) which has its own operator as well. Another word of warning, running stateful services, particularly mission critical databases, can require a lot of maintenance work (it's my full-time job), so unless this is for a hobby project, I would highly recommend you look into using a managed database offerring. Every major cloud provider and most database companies have one.
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My girlfriend left me... I have a K8S cluster, argocd, longhorn, traefik, metallb, on 3 optiplex mff with proxmox... This is the start gentlemen, i'll post back in 1 year. This dashboard will be full my friends, I promise, see you in the rabbit hole o/
For postgres you can also have a look at PGO or bitnami helm chart
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Databases on Kubernetes is fundamentally same as a database on a VM
Let's say a new Kubernetes version comes out in April. In November, as everything works perfectly well, you decide to install a Postgres operator on it. Bummer, it doesn't work. It's not a huge issue, you just wait until the bug is resolved (already done[0]), but it's just one of these tiny things that I don't get when running Postrges natively. And I'm saying this as a big fan of Crunchy Data running some production loads on it without a failure for quite some time now.
[0] https://github.com/CrunchyData/postgres-operator/issues/3476
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Are you running databases on Kubernetes?
There is one particular client that have a somewhat big database 40-120gb (it change size over the year), and for that we used CrunchyData Postgres operator ( https://access.crunchydata.com/documentation/postgres-operator/v5/ ) we have no commercial relation with them, but oboi let me tell you the god send that thing is, this database in specific process massive data and it is distributed between several nodes in a read-write and read-only set, and let me tell you, it is amazing how easy it is to move things around, take backups, increase the capacity and a bunch of other goodies that operator bring. Give it a try.
- Do people use DBs as Pods?
k3s
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Linux fu: getting started with systemd
For self-hosting I've found https://k3s.io to be really good from the SUSE people. Works on basically any Linux distro and makes self-hosting k8s not miserable.
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Nix is a better Docker image builder than Docker's image builder
Yes it’s going to depend on which k8s distribution you’re using. We have work in-progress for k3s to natively support nix-snapshotter: https://github.com/k3s-io/k3s/pull/9319
For other distributions, nix-snapshotter works with official containerd releases so it’s just a matter of toml configuration and a systemd unit for nix-snapshotter.
We run Kubernetes outside of NixOS, but yes the NixOS modules provided by the nix-snapshotter certainly make it simple.
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15 Options To Build A Kubernetes Playground (with Pros and Cons)
K3S: is a lightweight distribution of Kubernetes that is designed for resource-constrained environments. It is an excellent option for running Kubernetes on a virtual machine or cloud server.
- FLaNK 25 December 2023
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K3s Traefik Ingress - configured for your homelab!
I recently purchased a used Lenovo M900 Think Centre (i7 with 32GB RAM) from eBay to expand my mini-homelab, which was just a single Synology DS218+ plugged into my ISP's router (yuck!). Since I've been spending a big chunk of time at work playing around with Kubernetes, I figured that I'd put my skills to the test and run a k3s node on the new server. While I was familiar with k3s before starting this project, I'd never actually run it before, opting for tools like kind (and minikube before that) to run small test clusters for my local development work.
- Best way to deploy K8s to single VPS for dev environment
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Single docker compose stack on multiple hosts. But how?
Kubernetes - k3s distribution
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Building a no-code Helm UI with Windmill - Part 1
I’ve created a local cluster with K3S and installing Windmill could not be simpler with just one chart to configure, which already has sane defaults to get started. For this demo we will also configure workers to passthrough environment variables to our scripts so that they have access to the Kubernetes API server for later.
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Highly scalable Minecraft cluster
You should be familiar with Kubernetes and have set up a Kubernetes cluster. I recommend k3s.
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K3s – Lightweight Kubernetes
K3s' go.mod[0] is insane.
What are some alternatives?
kubegres - Kubegres is a Kubernetes operator allowing to deploy one or many clusters of PostgreSql instances and manage databases replication, failover and backup.
k0s - k0s - The Zero Friction Kubernetes
postgres-operator - Postgres operator creates and manages PostgreSQL clusters running in Kubernetes
kubespray - Deploy a Production Ready Kubernetes Cluster
longhorn - Cloud-Native distributed storage built on and for Kubernetes
Nomad - Nomad is an easy-to-use, flexible, and performant workload orchestrator that can deploy a mix of microservice, batch, containerized, and non-containerized applications. Nomad is easy to operate and scale and has native Consul and Vault integrations.
postgres-operator - Production PostgreSQL for Kubernetes, from high availability Postgres clusters to full-scale database-as-a-service.
microk8s - MicroK8s is a small, fast, single-package Kubernetes for datacenters and the edge.
cloudnative-pg - CloudNativePG is a comprehensive platform designed to seamlessly manage PostgreSQL databases within Kubernetes environments, covering the entire operational lifecycle from initial deployment to ongoing maintenance
Docker Compose - Define and run multi-container applications with Docker
QuestDB - An open source time-series database for fast ingest and SQL queries
k9s - 🐶 Kubernetes CLI To Manage Your Clusters In Style!