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Run a Kubernetes cluster

What is sealos

sealos is a cloud operating system distribution based on Kubernetes.

From now on, think of all your machines as an abstract supercomputer whose operating system is sealos, where Kubernetes serves as the OS kernel.
Instead of IaaS, PaaS and SaaS, there will only be cloud OS drivers(CSI, CNI and CRI implementations), cloud OS kernel(Kubernetes) and distributed applications.

This is not win11 but sealos desktop

Use the cloud like a PC desktop, Freely run and uninstall any distributed applications:

Some Screen Shots of sealos:

redis on sealos cloud	redis on sealos cloud

pgsql on sealos cloud	pgsql on sealos cloud

Core features

Manage clusters lifecycle
- Quickly install HA Kubernetes clusters
- Add / remove nodes
- Clean the cluster, backup and auto recovering, etc.
Download and use OCI-compatible distributed applications
- OpenEBS, MinIO, Ingress, PostgreSQL, MySQL, Redis, etc.
Customize your own distributed applications
- Using Dockerfile to build distributed applications images, saving all dependencies.
- Push distributed applications images to Docker Hub.
- Combine multiple applications to build your own cloud platform.
Sealos cloud
- Run any distributed applications
- Have a full public cloud capability, and run it anywhere

Quickstart

Installing an HA Kubernetes cluster with calico as CNI

Here kubernetes:v1.24.0 and calico:v3.24.1 are the cluster images in the registry which are fully compatible with OCI standard. Wonder if we can use flannel instead? Of course!

# Download and install sealos. sealos is a golang binary so you can just download and copy to bin. You may also download it from release page.
$ wget  https://github.com/labring/sealos/releases/download/v4.1.3/sealos_4.1.3_linux_amd64.tar.gz  && \
    tar -zxvf sealos_4.1.3_linux_amd64.tar.gz sealos &&  chmod +x sealos && mv sealos /usr/bin 
# Create a cluster
$ sealos run labring/kubernetes:v1.25.0 labring/helm:v3.8.2 labring/calico:v3.24.1 \
     --masters 192.168.64.2,192.168.64.22,192.168.64.20 \
     --nodes 192.168.64.21,192.168.64.19 -p [your-ssh-passwd]

Supported Kubernetes versions: 240+ Kubernetes versions Kubernetes use cri-docker runtime
Other distributed applications images

Single host

$ sealos run labring/kubernetes:v1.25.0 labring/helm:v3.8.2 labring/calico:v3.24.1 --single
# remove taint
$ kubectl taint node --all node-role.kubernetes.io/control-plane-
$ kubectl taint nodes --all node-role.kubernetes.io/master:NoSchedule-

Building a custom cluster image

See Building an Example CloudImage.

Storage, message queue, database, etc.

Don't be shocked by the following:

sealos run labring/helm:v3.8.2 # install helm
sealos run labring/openebs:v1.9.0 # install openebs
sealos run labring/minio-operator:v4.4.16 labring/ingress-nginx:4.1.0 \
   labring/mysql-operator:8.0.23-14.1 labring/redis-operator:3.1.4 # oneliner

And now everything is ready.

Use cri-docker image

sealos run labring/kubernetes-docker:v1.20.5-4.1.3 labring/calico:v3.24.1 \
     --masters 192.168.64.2,192.168.64.22,192.168.64.20 \
     --nodes 192.168.64.21,192.168.64.19 -p [your-ssh-passwd]

Links

Contribution Guidelines
Development Guide
sealosAction
sealos 3.0(older version) For older version users. Note that sealos 4.0 includes significant improvements, so please upgrade ASAP.
buildah Capabilities of buildah is widely used in sealos 4.0 to make cluster images compatible with container images and docker registry.

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Name		Name	Last commit message	Last commit date
Latest commit History 1,853 Commits
.devcontainer		.devcontainer
.github		.github
cloud/deploy		cloud/deploy
cmd		cmd
controllers		controllers
desktop		desktop
docker		docker
docs		docs
fork		fork
pkg		pkg
proposal		proposal
scripts		scripts
service		service
staging/src/github.com/labring		staging/src/github.com/labring
test		test
webhooks/whitelist		webhooks/whitelist
.gitignore		.gitignore
.golangci.yml		.golangci.yml
.goreleaser.yml		.goreleaser.yml
CONTRIBUTING.md		CONTRIBUTING.md
CONTRIBUTORS		CONTRIBUTORS
DEVELOPGUIDE.md		DEVELOPGUIDE.md
Dockerfile		Dockerfile
LICENSE		LICENSE
MAINTAINERS.md		MAINTAINERS.md
Makefile		Makefile
README.md		README.md
ROADMAP.md		ROADMAP.md
USERS.md		USERS.md
go.mod		go.mod
go.sum		go.sum
go.work		go.work
go.work.sum		go.work.sum

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Use cri-docker image

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Use cri-docker image

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