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Update Kubernetes hosting

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Nico Schottelius 2022-07-03 13:30:44 +02:00
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_discoverable: yes
---
_hidden: no
---
title: Low Power Kubernetes Clusters
---
subtitle: Kubernetes the green way
---
headline1: Environment Friendly
---
headline2: Scalable & Managed
---
headline3: Kubernetes Clusters
---
header_background_color: #316CE6
---
header_text_color: text-light
---
nav_classes: navbar-dark
---
image:/u/image/cards/kubernetes.jpg
---
feature1_title: Environment Friendly
---
feature1_text:
You want to run Kubernetes in a sustainable and affordable way? Then
this Kubernetes hosting is for you: Built specifically on low power
components, your Kubernetes cluster is not only friendly to your
wallet, but even more to the environment.
---
feature2_title: Scalable
---
feature2_text:
Your Kubernetes cluster can start from 3 nodes and grow to any size. Every
node that you add to your cluster contributes additional CPU, RAM and
persistent storage.
---
feature3_title: Dedicated
---
feature3_text:
Your Kubernetes cluster is running on dedicated hardware. No
interruption, no rescheduling, no peer pressure. All resources are
100% usable by you.
---
feature4_title: Very Environment friendly
---
feature4_text:
Each Kubernetes node has been tested to consume less than 20W at
maximum performance. While our data center is using 100% renewable
energy, we try to even make an extra effort to reduce impact on the
environment.
---
feature6_title: 100% IPv6
---
feature6_text:
The Kubernetes cluster is ready for the IPv6 world: all nodes are
running on an IPv6-only network. For IPv4 reachability we offer you
dedicated mapped IPv4 addresses.
---
content1_text:
## Hosted Kubernetes Clusters by ungleich
While you might be aware of other managed Kubernetes clusters, here at
ungleich we have quite a different offering. Let's start with the
obvious ones that you are unlikely to experience anywhere else:
### Environment friendly, for real
Other providers are dealing with Carbon Certificates, offsetting their
energy and claiming to be green. None of that makes sense to us, as
the emissions are produced nonetheless, fossil fuels are used or
nuclear energy contributes to running your Kubernetes cluster
elsewhere.
Here at ungleich we start from the beginning and continue to improve
our energy usage every day. Not only are we using a 100% renewable
energy (locally produced!), but we also research specific hardware to
optimise the energy usage required by Kubernetes clusters.
## Standard building blocks
Other providers offer you a complex system of building blocks: this
CPU, that memory, different storage classes, bandwidth consumption and
so on and so on. You easily lose the track of what you wanted to do in
the first place: to run your workload.
Here at ungleich we offer you exactly 1 building block to build your
kubernetes clusters: The ungleich k8s node.
## The ungleich k8s node
The ungleich k8s node is an AMD based, 12 thread computer with 64 GB
of main memory and two SSDs. The first SSDs is used for storing the
operating system and the second SSD is used to store your data.
The second SSD has a capacity of 1TB.
## The ungleich kubernetes cluster
Each Kubernetes cluster consists of 3 or more k8s nodes. While you can
grow it with adding individual nodes, we recommend to grow it in
numbers of 3. The reason for this is the underlying storage technology
[Ceph](https://ceph.com/) that saves each of your data blocks 3 times.
## Failure resistent
As your workload is running on any of the k8s nodes, maintenance work
and failovers can be executed without interrupting the services
(assuming your workload is deployed accordingly).
## Storage support included
Using a built-in dedicated Ceph cluster we provide you with persistent
storage that can be accessed using standard Kubernetes PVCs.
As every k8s node contains a dedicated SSD, by adding new nodes, your
storage cluster automatically grows as well.
As the Ceph cluster stores every object 3 times, the 1 TB SSD of
each node contributes about 300GiB usable storage.
## Pricing
Our pricing is very simple: Per K8S node we charge 300 CHF/month. This
includes rental of the hardware, network traffic, electricity and
maintenance of the kubernetes cluster.
This might not be the cheapest kubernetes you can build, but it is
probably the world's most energy aware and most modern Kubernetes
cluster out there.
---
offer1_title: 3 Node k8s cluster 900 CHF/month
---
offer1_text:
* [One time setup fee 150 CHF](https://datacenterlight.ch/product/k8s-setup-3)
* 3 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total 36 threads, 192 GB RAM, ca. 1 TB persistent storage
* Suitable for a development use
---
offer1_link: https://datacenterlight.ch/product/k8s-hosting-3
---
offer2_title: 6 Node k8s cluster 1800 CHF/month
---
offer2_text:
* [One time setup fee 300 CHF](https://datacenterlight.ch/product/k8s-setup-6/)
* 6 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total 72 threads, 384 GB RAM, ca. 2 TB persistent storage
* Suitable as small production cluster
---
offer2_link: https://datacenterlight.ch/product/k8s-hosting-6
---
offer3_title: 9 Node k8s cluster 2700 CHF/month
---
offer3_text:
* [One time setup fee 450 CHF](https://datacenterlight.ch/product/k8s-setup-9/)
* 9 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total: 108 threads, 576GB RAM, ca. 3 TB persistent storage
* Suitable as a production cluster
---
offer3_link: https://datacenterlight.ch/product/k8s-hosting-9
---
offer4_title: 12 Node k8s cluster 3600 CHF/month
---
offer4_text:
* [One time setup fee 600 CHF](https://datacenterlight.ch/product/k8s-setup-12/)
* 12 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total: 144 threads, 768 GB RAM, ca. 4 TB persistent storage
* Suitable as a production cluster
---
offer4_link: https://datacenterlight.ch/product/k8s-hosting-12
---
offer5_title: 15 Node k8s cluster 4500 CHF/month
---
offer5_text:
* [One time setup fee 750 CHF](https://datacenterlight.ch/product/k8s-setup-15/)
* 3 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total: 180 threads, 960 GB RAM, ca. 5 TB persistent storage
* Suitable as a large production cluster
---
offer5_link: https://datacenterlight.ch/product/k8s-hosting-15
---
offer6_title: 18 Node k8s cluster 5400 CHF/month
---
offer6_text:
* [One time setup fee 900 CHF](https://datacenterlight.ch/product/k8s-setup-18/)
* 3 nodes with each: 12 Threads, 64GB RAM, 1 TB Storage SSD
* Total: 216 threads, 1152 GB RAM, ca. 6 TB persistent storage
* Suitable as a large production cluster
---
offer6_link: https://datacenterlight.ch/product/k8s-hosting-18
---
content2_text:
## Tech Details
### The ungleich k8s node
* CPU: AMD Ryzen 5 5600G
* RAM: 64 GB DDR4-3200
* OS SSD: M2, 128 GB or more
* Data SSD: SATA, 1 TB, usually ca. 500 MB read/write (work load dependent)
* Connectivity: 1 Gbit/s
* OS: Alpine Linux
* Networking: IPv6 only
### The ungleich k8s cluster
The Kubernetes control plane access is available via IPv6 and
IPv4. All pods are running in a dedicated /64 IPv6 network.
Service IPs are IPv6 only and are located in a second /64 IPv6 network.
The cluster does not support type=LoadBalancer, because it is not
necessary in IPv6 only environments. ClusterIPs are already by default
world reachable.
IPv4 reachablity can be configured in two ways:
* Via our IPv4-to-IPv6 proxy (http, https based)
* Via a dedicated IPv4 address
The current stack uses Calico as the CNI.