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This BOSH release and deployment manifest deploy a cluster of k3s
Lightweight Kubernetes. 5 less than k8s. https://k3s.io.
The aim of the bosh release:
-
offer a very thin layer on top of k3 binary
-
reduced memory footprint wrt existing k8s bosh release
-
enrich k3 experience with bosh goodies
- reproducible / stable OS provided as stemcell
- easy cluster deployment (multi-vm, multi-master, correctly wired master / agent)
- multi-iaas capability (vpshere/openstack/gcp/azure/ ... )
- credhub secrets generation (k3s-token)
-
day 2 operations (persistent disk resize, stemcell rotation)
-
ease of dev / operations
- k9s and kubectl are packaged and preconfigured inside the bosh instances
- easy automation with complementary bosh mechanisms
- bosh errand mechanism
- helm-kubectl bosh release https://orange-cloudfoundry.github.io/helm-kubectl-boshrelease/
- terraform bosh release https://github.com/orange-cloudfoundry/terraform-release
- database bosh releases for backend (postgres / mysql /etcd)
- generic scripting release (if low level scripting is required) https://github.com/orange-cloudfoundry/generic-scripting-release
It should be associated with:
- https://github.com/orange-cloudfoundry/k3s-packages-boshrelease
- https://github.com/orange-cloudfoundry/k9s-package-boshrelease
- https://github.com/orange-cloudfoundry/nerdctl-package-boshrelease
Details about each embedded component are available at https://www.suse.com/suse-k3s/support-matrix/all-supported-versions/k3s-v1-28/
It contains scripts to use with k3s-packages-boshrelease
This repository includes base manifests and operator files. They can be used for initial deployments and subsequently used for updating your deployments:
export BOSH_ENVIRONMENT=<bosh-alias>
export BOSH_DEPLOYMENT=k3s
git clone https://github.com/cloudfoundry-community/k3s-boshrelease.git
bosh deploy k3s-boshrelease/manifests/k3s.yml
If your BOSH does not have Credhub/Config Server, then remember --vars-store to allow generation of passwords and certificates.
When new versions of k3s-boshrelease are released the manifests/k3s.yml file will be updated. This means you can easily git pull and bosh deploy to upgrade.
export BOSH_ENVIRONMENT=<bosh-alias>
export BOSH_DEPLOYMENT=k3s
cd k3s-boshrelease
git pull
cd -
bosh deploy k3s-boshrelease/manifests/k3s.yml
this bosh release usage can be seen in action in https://github.com/orange-cloudfoundry/paas-templates/tree/manual-drop/shared-operators/k3s
see contributing