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https://github.com/sealerio/sealer

Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF)
https://github.com/sealerio/sealer

cloud-native clusterimage delivery-service distributed-systems docker golang installer isv k8s kubernetes kubernetes-deployment operations package registry

Last synced: about 2 months ago
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Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF)

Host: GitHub
URL: https://github.com/sealerio/sealer
Owner: sealerio
License: apache-2.0
Created: 2021-04-29T03:13:48.000Z (about 3 years ago)
Default Branch: main
Last Pushed: 2024-03-25T11:10:36.000Z (3 months ago)
Last Synced: 2024-04-17T16:15:14.329Z (2 months ago)
Topics: cloud-native, clusterimage, delivery-service, distributed-systems, docker, golang, installer, isv, k8s, kubernetes, kubernetes-deployment, operations, package, registry
Language: Go
Homepage: http://sealer.cool
Size: 42.4 MB
Stars: 2,005
Watchers: 35
Forks: 355
Open Issues: 224
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: code-of-conduct.md
- Roadmap: ROADMAP.md

Lists

awesome-stars - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
my-awesome-stars - sealer
awesome-stars - sealer
awesome-stars - sealerio/sealer
awesome-stars - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
my-awesome-stars - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
awesome-stars - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
awesome-stars - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (kubernetes)
artsz-awesome - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
awesome-starts - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
awesome-hacking-lists - sealerio/sealer - Build, Share and Run Both Your Kubernetes Cluster and Distributed Applications (Project under CNCF) (Go)
awesome-cs-cloudnative-blockchain - sealer - ai/k8sgpt)、[Horizon](https://github.com/horizoncd/horizon/) 以及我自己打造的开源社区 [Kubecub](https://github.com/kubecub)。kubecub 中有很多我沉淀下来的开源规范以及代码、项目规范都总结在各个仓库中。并且，Kubecub 和 OpenIM 使用了我创造的 [🤖 robot(kubbot)](https://github.com/kubbot) 来对 PR 和 Issue 高度自动化。kubecub 宗旨是面向所有的开发者进行学习和创造的，你可以在里面利用我们的自动化工具和模板打造自己的开源项目，并且让更多的人来帮助你协同、review 代码。 (🗃️ 项目)

README

        # Sealer -- Build, Share and Run Any Distributed Applications

[![License](https://img.shields.io/badge/license-Apache%202-brightgreen.svg)](https://github.com/sealerio/sealer/blob/master/LICENSE)

[![Go](https://github.com/sealerio/sealer/actions/workflows/go.yml/badge.svg)](https://github.com/sealerio/sealer/actions/workflows/go.yml)

[![Release](https://github.com/sealerio/sealer/actions/workflows/release.yml/badge.svg)](https://github.com/sealerio/sealer/actions/workflows/release.yml)

[![GoDoc](https://godoc.org/github.com/sealerio/sealer?status.svg)](https://godoc.org/github.com/sealerio/sealer)

[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/5205/badge)](https://bestpractices.coreinfrastructure.org/en/projects/5205)

[![Twitter](https://img.shields.io/badge/Follow-sealer-1DA1F2?logo=twitter)](https://twitter.com/sealer_oss)

[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fsealerio%2Fsealer.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fsealerio%2Fsealer?ref=badge_shield)

[![codecov](https://codecov.io/gh/sealerio/sealer/branch/main/graph/badge.svg?token=LH8XUR5YPL)](https://codecov.io/gh/sealerio/sealer)

[![](https://img.shields.io/badge/Sealer-Check%20Your%20Contribution-orange)](https://opensource.alibaba.com/contribution_leaderboard/details?projectValue=sealer)

## Contents

* [Introduction](#introduction)

* [Quick Start](#quick-start)

* [Contributing](./CONTRIBUTING.md)

* [FAQ](./FAQ.md)

* [Adopters](./Adopters.md)

* [LICENSE](LICENSE)

* [Code of conduct](./code-of-conduct.md)

## Introduction

Sealer[ˈsiːlər] provides a new way of distributed application delivery which is reducing the difficulty and complexity by packaging Kubernetes cluster and all application's dependencies into one ClusterImage.

We can write a Kubefile to build the ClusterImage, and use it to deliver your applications with embedded Kubernetes through Clusterfile.

![image](https://user-images.githubusercontent.com/8912557/117263291-b88b8700-ae84-11eb-8b46-838292e85c5c.png)

> Concept

* Kubefile: a file that describes how to build a ClusterImage.

* ClusterImage: like docker image, and it contains all the dependencies(container images,yaml files or helm chart...) of your application needed.

* Clusterfile: a file that describes how to run a ClusterImage.

![image](https://user-images.githubusercontent.com/8912557/117400612-97cf3a00-af35-11eb-90b9-f5dc8e8117b5.png)

## Awesome features

* [x] Simplicity: Packing the distributed application into ClusterImage with few instructions.

* [x] Efficiency: Launching the k8s-based application through ClusterImage in minutes.

* [x] Scalability: Powerful cluster and image life cycle management, such as cluster scale, upgrade, image load, save and so on.

* [x] Compatibility: Multi-arch delivery Supporting. Such as AMD, ARM with common Linux distributions.

* [x] Iterative: Incremental operations on ClusterImage is like what container image behaves.

## Quick start

Download sealer binary file.

```shell script

#install Sealer binaries

wget https://github.com/sealerio/sealer/releases/download/v0.9.3/sealer-v0.9.3-linux-amd64.tar.gz && \

tar zxvf sealer-v0.9.3-linux-amd64.tar.gz && mv sealer /usr/bin

```

## Install a kubernetes cluster

```shell

# run a kubernetes cluster

sealer run docker.io/sealerio/kubernetes:v1-22-15-sealerio-2 \

  --masters 192.168.0.2,192.168.0.3,192.168.0.4 \

  --nodes 192.168.0.5,192.168.0.6,192.168.0.7 --passwd xxx

```

## Build an sealer image

Kubefile:

```shell

FROM docker.io/sealerio/kubernetes:v1-22-15-sealerio-2

APP mysql https://charts/mysql.tgz

APP elasticsearch https://charts/elasticsearch.tgz

APP redis local://redis.yaml

APP businessApp local://install.sh

LAUNCH ["calico", "mysql", "elasticsearch", "redis", "businessApp"]

```

or

```shell

FROM docker.io/sealerio/kubernetes:v1-22-15-sealerio-2

COPY mysql.tgz .

COPY elasticsearch.tgz .

COPY redis.yaml .

COPY install.sh .

CMDS ["sh application/apps/calico/calico.sh", "helm install mysql.tgz", "helm install elasticsearch.tgz", "kubectl apply -f redis.yaml", "bash install.sh"]

```

build command:

> NOTE: --type=kube-installer is the default value for sealer build

```shell

sealer build -f Kubefile -t my-kubernetes:1.0.0 .

```

## Build an app image

nginx.yaml:

```shell

apiVersion: apps/v1

kind: Deployment

metadata:

  name: my-nginx

  namespace: default

spec:

  replicas: 1

  selector:

    matchLabels:

      run: my-nginx

  template:

    metadata:

      labels:

        run: my-nginx

    spec:

      containers:

        - name: my-nginx

          image: nginx

          ports:

            - containerPort: 80

```

Kubefile:

```shell

FROM scratch

APP nginx local://nginx.yaml

LAUNCH ["nginx"]

```

```shell

sealer build -f Kubefile -t sealer-io/nginx:latest --type app-installer

```

## Run the app image

```shell

sealer run sealer-io/nginx:latest

# check the pod

kubectl get pod -A

```

## Push the app image to the registry

```shell

# you can push the app image to docker hub, Ali ACR, or Harbor

sealer tag sealer-io/nginx:latest {registryDomain}/sealer-io/nginx:latest

sealer push {registryDomain}/sealer-io/nginx:latest

```

## Clean the cluster

Some information of the basic settings will be written to the Clusterfile and stored in /root/.sealer/Clusterfile.

```shell

sealer delete -a

```

## User guide

Sealer provides a valid image list:

| version  |                              image                                  |                  Arch                   |                                                           OS                                                        |              Network plugins            |             container runtime           |

| :------: | :-----------------------------------------------------------------: | :-------------------------------------: | :-----------------------------------------------------------------------------------------------------------------: | :-------------------------------------: | :-------------------------------------: |

| v0.8.6   | registry.cn-qingdao.aliyuncs.com/sealer-io/kubernetes:v1.22.15-0.8.6|                   x86                   |     CentOS/RHEL 7.5
CentOS/RHEL 7.6
CentOS/RHEL 7.7
CentOS/RHEL 7.8
CentOS/RHEL 7.9
Ubuntu 20.04     |                 calico                  |            hack docker v19.03.14        |

| v0.9.3   | docker.io/sealerio/kubernetes:v1-18-3-sealerio-2                    |                x86/arm64                |     CentOS/RHEL 7.5
CentOS/RHEL 7.6
CentOS/RHEL 7.7
CentOS/RHEL 7.8
CentOS/RHEL 7.9
Ubuntu 20.04     |                 calico                  |            hack docker v19.03.14        |

| v0.9.3   | docker.io/sealerio/kubernetes:v1-20-4-sealerio-2                    |                x86/arm64                |     CentOS/RHEL 7.5
CentOS/RHEL 7.6
CentOS/RHEL 7.7
CentOS/RHEL 7.8
CentOS/RHEL 7.9
Ubuntu 20.04     |                 calico                  |            hack docker v19.03.14        |

| v0.9.3   | docker.io/sealerio/kubernetes:v1-22-15-sealerio-2                   |                x86/arm64                |     CentOS/RHEL 7.5
CentOS/RHEL 7.6
CentOS/RHEL 7.7
CentOS/RHEL 7.8
CentOS/RHEL 7.9
Ubuntu 20.04     |                 calico                  |            hack docker v19.03.14        |

[get started](http://sealer.cool/docs/getting-started/introduction.html)

## Official website

[official website](http://sealer.cool)

## Developing Sealer

* [contributing guide](./CONTRIBUTING.md)

## Communication Channels

* CNCF Mailing List: to be added.

* Twitter: [@sealer](https://twitter.com/sealer_oss)

* DingTalk Group Number: 34619594



  



## Code of Conduct

sealer follows the [CNCF Code of Conduct](https://github.com/cncf/foundation/blob/master/code-of-conduct.md).

## License

Sealer is licensed under the Apache License, Version 2.0. See [LICENSE](LICENSE) for the full license text.

[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fsealerio%2Fsealer.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fsealerio%2Fsealer?ref=badge_large)