claudie: A Go repository from berops

Platform for managing multi-cloud and hybrid-cloud Kubernetes clusters with support for nodepools across different cloud-providers and on-premise data centers

Intro video

Vision of Claudie

The purpose of Claudie is to become the final Kubernetes engine you'll ever need. It aims to build clusters that leverage features and costs across multiple cloud vendors and on-prem datacenters. A Kubernetes that you won't ever need to migrate away from.

Typical use cases

Claudie has been built as an answer to the following Kubernetes challenges.

Cost savings
Data locality & compliance (e.g. GDPR)
Managed Kubernetes for providers that do not offer it
Cloud bursting
Service interconnect

Read in more details here.

Features

Manage multi-cloud and hybrid-cloud Kubernetes clusters

Create fully-featured Kubernetes clusters composed of multiple different public Cloud providers and on-premise data center in an easy and secure manner. Simply insert credentials to your cloud projects, define your cluster, and watch how the infra spawns right in front of you.

Management via IaC

Declaratively define your infrastructure with a simple, easy to understand YAML syntax. See example manifest.

Fast scale-up/scale-down of your infrastructure

To scale-up or scale-down, simply change a few lines in the input manifest and Claudie will take care of the rest in the matter of minutes.

Loadbalancing

Claudie has its own managed load-balancing solution, which you can use for Ingresses, the Kubernetes API server, or generally anything. Check out our LB docs.

Persistent storage volumes

Claudie comes pre-configured with a storage solution, with ready-to-use Storage Classes. See Storage docs to learn more.

Get started using Claudie

Prerequisites

Before you begin, please make sure you have the following prerequisites installed and set up:

Claudie needs to be installed on an existing Kubernetes cluster, referred to as the Management Cluster, which it uses to manage the clusters it provisions. For testing, you can use ephemeral clusters like Minikube or Kind. However, for production environments, we recommend using a more resilient solution since Claudie maintains the state of the infrastructure it creates.
Claudie requires the installation of cert-manager in your Management Cluster. To install cert-manager, use the following command:
```
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.12.0/cert-manager.yaml
```

Supported providers

Supported Provider	Node Pools	DNS
AWS	✔️	✔️
Azure	✔️	✔️
GCP	✔️	✔️
OCI	✔️	✔️
Hetzner	✔️	✔️
Cloudflare	N/A	✔️
GenesisCloud	✔️	N/A

For adding support for other cloud providers, open an issue or propose a PR.

Install Claudie

Deploy Claudie to the Management Cluster:

kubectl apply -f https://github.com/berops/claudie/releases/latest/download/claudie.yaml

To further harden claudie, you may want to deploy our pre-defined network policies:

# for clusters using cilium as their CNI
kubectl apply -f https://github.com/berops/claudie/releases/latest/download/network-policy-cilium.yaml

# other
kubectl apply -f https://github.com/berops/claudie/releases/latest/download/network-policy.yaml

Deploy your cluster

Create Kubernetes Secret resource for your provider configuration.
```
kubectl create secret generic example-aws-secret-1 \
  --namespace=mynamespace \
  --from-literal=accesskey='myAwsAccessKey' \
  --from-literal=secretkey='myAwsSecretKey'
```
Check the supported providers for input manifest examples. For an input manifest spanning all supported hyperscalers checkout out this example.

Deploy InputManifest resource which Claudie uses to create infrastructure, include the created secret in .spec.providers as follows:

kubectl apply -f - <<EOF
apiVersion: claudie.io/v1beta1
kind: InputManifest
metadata:
  name: examplemanifest
  labels:
    app.kubernetes.io/part-of: claudie
spec:
  providers:
      - name: aws-1
      providerType: aws
      secretRef:
          name: example-aws-secret-1 # reference the secret name
          namespace: mynamespace     # reference the secret namespace
  nodePools:
      dynamic:
      - name: control-aws
          providerSpec:
            name: aws-1
            region: eu-central-1
            zone: eu-central-1a
          count: 1
          serverType: t3.medium
          image: ami-0965bd5ba4d59211c
      - name: compute-1-aws
          providerSpec:
            name: aws-1
            region: eu-west-3
            zone: eu-west-3a
          count: 2
          serverType: t3.medium
          image: ami-029c608efaef0b395
          storageDiskSize: 50
  kubernetes:
      clusters:
      - name: aws-cluster
          version: 1.27.0
          network: 192.168.2.0/24
          pools:
            control:
                - control-aws
            compute:
                - compute-1-aws        
EOF

Deleting existing InputManifest resource deletes provisioned infrastructure!

Connect to your cluster

Claudie outputs base64 encoded kubeconfig secret <cluster-name>-<cluster-hash>-kubeconfig in the namespace where it is deployed:

Recover kubeconfig of your cluster by running:

kubectl get secrets -n claudie -l claudie.io/output=kubeconfig -o jsonpath='{.items[0].data.kubeconfig}' | base64 -d > your_kubeconfig.yaml

Use your new kubeconfig:

kubectl get pods -A --kubeconfig=your_kubeconfig.yaml

Cleanup

To remove your cluster and its associated infrastructure, delete the cluster definition block from the InputManifest:

kubectl apply -f - <<EOF
apiVersion: claudie.io/v1beta1
kind: InputManifest
metadata:
  name: examplemanifest
  labels:
    app.kubernetes.io/part-of: claudie
spec:
  providers:
      - name: aws-1
      providerType: aws
      secretRef:
          name: example-aws-secret-1 # reference the secret name
          namespace: mynamespace     # reference the secret namespace
  nodePools:
      dynamic:
      - name: control-aws
          providerSpec:
            name: aws-1
            region: eu-central-1
            zone: eu-central-1a
          count: 1
          serverType: t3.medium
          image: ami-0965bd5ba4d59211c
      - name: compute-1-aws
          providerSpec:
            name: aws-1
            region: eu-west-3
            zone: eu-west-3a
          count: 2
          serverType: t3.medium
          image: ami-029c608efaef0b395
          storageDiskSize: 50
  kubernetes:
    clusters:
#      - name: aws-cluster
#          version: 1.27.0
#          network: 192.168.2.0/24
#          pools:
#            control:
#                - control-aws
#            compute:
#                - compute-1-aws         
EOF

To delete all clusters defined in the input manifest, delete the InputManifest. This triggers the deletion process, removing the infrastructure and all data associated with the manifest.
```
kubectl delete inputmanifest examplemanifest
```

Get involved

Everyone is more than welcome to open an issue, a PR or to start a discussion.

For more information about contributing please read the contribution guidelines.

If you want to have a chat with us, feel free to join our channel on kubernetes Slack workspace (get invite here).

Security

While we strive to create secure software, there is always a chance that we miss something. If you've discovered something that requires our attention, see our security policy to learn how to proceed.

Roadmap

To see the vision behind Claudie, please refer to the roadmap document.

Reach out to us

Claudie is proudly developed by Berops. Feel free to request a demo here. For information on enterprise support, contact us here.

LICENSE

Apache-2.0 (see LICENSE for details).