luanshaotong / sealos Goto Github PK

Docs | 简体中文

sealos is a cloud operating system distribution with Kubernetes as its kernel.

In the early stages, operatings systems have adopted a layered architecture, which later evolved into kernel architecture like Linux and Windows. With the emergence of container technologies, cloud OS will migrate to a "cloud kernel" architecture with strong cohesion in the future.

• 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.

Embedded dashboard application

Embedded terminal application

• 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 you 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

Installing an HA kubernetes cluster with calico as CNI

Here kubernetes:v1.24.0 and calico:v3.22.1 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/v4.0.0/sealos_4.0.0_linux_amd64.tar.gz \
   && tar zxvf sealos_4.0.0_linux_amd64.tar.gz sealos && chmod +x sealos && mv sealos /usr/bin
# Create a cluster
$ sealos run labring/kubernetes:v1.24.0 labring/calico:v3.22.1 \
     --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]

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.

• Contribution Guidelines
• Development Guide
• 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.
• sealer Capabilities of sealer is widely used in sealos 4.0 to make Clusterfile compatible with sealer, some module forked sealer source code.

Join us: Telegram, QQ Group(98488045), Wechat：fangnux