Overview.

AME Kubernetes - managed platform

Avisi Managed Environment Kubernetes is a managed Kubernetes platform across multiple cloud providers. It is the core of our Avisi Managed Environment platform. AME Kubernetes clusters are fully compatible with upstream Kubernetes.

Supported Cloud Providers#

Avisi Cloud Kubernetes currently supports the following Cloud Providers;

• Amazon Web Services (AWS)
• DigitalOcean
• Leafcloud
• OpenStack

Support for additional Cloud Providers will be added after Q2 2023.

Upstream & Conformant Kubernetes#

AME deploys an upstream Kubernetes and remains close to the behaviour of standard Kubernetes. All clusters pass the Kubernetes conformance tests by the CNCF.

Every new release by AME must pass these tests before they are published, alongside various additional end-to-end tests by Avisi Cloud itself.

Automated cluster nodes#

Nodes are managed in a fully automated way. We use immutable infrastructure principles to safely and reliably patch systems.

Should a node become unreachable due to hardware failure, or any other number of reasons, it will be automatically replaced by a healthy node to ensure available capacity within your environment.

Load balancers#

A way to dynamically route traffic from the public internet to your application. Implementations may differ between cloud providers.

Persistent storage#

Easily persist data within your cluster using external storage. We support native implementations in each public cloud we support and support Ceph for private cloud implementations.

VPC networking#

Each cluster is fully isolated from any other cluster and/or customer. No two clusters can reach each other over the network.

Cluster networking#

We support multiple plugins for in-cluster networking. By default, we deploy Calico.

Support is available for Weave Net and Cilium. With all implementations, we support network policies.

Feature compatibility across providers#

Since AME supports multiple providers, certain implementations may be different across clouds.

Avisi Cloud will only support providers that have the following basic functionality supported;

• Provisioning of Load balancers - a way to dynamically route traffic from the public internet to your application.
• Provisioning of Persistent Volumes - easily persist data within your cluster using external storage.
• VPC Networking - fully isolated networking from any other cluster.

How to#

Limitations#

• The amount of clusters you can create is limited per organisation. The same applies to the amount of nodes within a cluster.
• The Control plane is fully managed by Avisi Cloud. You cannot modify any settings other than available through the API.
• When upgrading a cluster, you can only upgrade to the next minor or patch version.

Cluster limits#

• Clusters can have up to 250 nodes per zone. Note that each organisation starts with a lower limit (5).
• Pod limit per node is 110.
• We only deploy containerd as our primary container runtime (e.g. no Docker).
• It is not possible to disable the metrics-server add-on at this time.

Available memory per machine size#

While you can provision machines with 8GB of RAM, you cannot use the entirety of this for your application. A certain part of this memory is used for the operating system and other system components such as the container runtime.

Documentation#