1. 前言
本文中，我们会基于sealos制作一个Kubesphere集群镜像。
使用这个集群镜像，我们能够在sealos拉起的K8S集群中，一键部署KubeSphere。
参考文档：
2. 前置条件
安装sealos4.2.0，拉起K8S 1.24.8集群（同时安装helm），具体方法参考《sealos入门篇》。
3. 制作KubeSphere集群镜像
1、准备资源清单
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| mkdir kubesphere && cd kubesphere
mkdir manifests
wget -O manifests/01-kubesphere-installer.yaml https://github.com/kubesphere/ks-installer/releases/download/v3.3.2/kubesphere-installer.yaml
wget -O manifests/02-cluster-configuration.yaml https://github.com/kubesphere/ks-installer/releases/download/v3.3.2/cluster-configuration.yaml
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2、修改 manifests/02-cluster-configuration.yaml
ks-apiserver和ks-controller-manager的资源调整示例如下：
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| spec:
common:
core:
console:
enableMultiLogin: true
port: 30880
apiserver:
resources:
requests:
cpu: 100m
memory: 400Mi
limits:
cpu: "2"
memory: 8Gi
controllerManager:
resources:
requests:
cpu: 100m
memory: 400Mi
limits:
cpu: "2"
memory: 8Gi
minio:
volumeSize: 200Gi
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如果不想安装Prometheus，那么需要修改monitoring使用外部Prometheus（可以配置个假的地址）。
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| spec:
common:
monitoring:
type: external
endpoint: http://prometheus-operated.prometheus.svc:9090
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参考文档：安装时如何不安装Prometheus
3、添加镜像列表
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| cat manifests/* | grep image
mkdir -p images/shim/
curl -L -O https://github.com/kubesphere/ks-installer/releases/download/v3.3.2/images-list.txt
vim images-list.txt
mv images-list.txt images/shim/
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编辑images-list.txt时，因为我们只想要一个kubesphere集群用来管理k8s资源，所以只保留kubesphere-images和kubesphere-monitoring-images。
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| ##kubesphere-images
kubesphere/ks-installer:v3.3.2
kubesphere/ks-apiserver:v3.3.2
kubesphere/ks-console:v3.3.2
kubesphere/ks-controller-manager:v3.3.2
#kubesphere/kubectl:v1.20.0
kubesphere/kubectl:v1.22.0
kubesphere/kubefed:v0.8.1
kubesphere/tower:v0.2.0
minio/minio:RELEASE.2019-08-07T01-59-21Z
minio/mc:RELEASE.2019-08-07T23-14-43Z
csiplugin/snapshot-controller:v4.0.0
kubesphere/nginx-ingress-controller:v1.1.0
mirrorgooglecontainers/defaultbackend-amd64:1.4
kubesphere/metrics-server:v0.4.2
redis:5.0.14-alpine
haproxy:2.0.25-alpine
alpine:3.14
osixia/openldap:1.3.0
kubesphere/netshoot:v1.0
##kubesphere-monitoring-images
jimmidyson/configmap-reload:v0.5.0
prom/prometheus:v2.34.0
kubesphere/prometheus-config-reloader:v0.55.1
kubesphere/prometheus-operator:v0.55.1
kubesphere/kube-rbac-proxy:v0.11.0
kubesphere/kube-state-metrics:v2.5.0
prom/node-exporter:v1.3.1
prom/alertmanager:v0.23.0
thanosio/thanos:v0.25.2
grafana/grafana:8.3.3
kubesphere/kube-rbac-proxy:v0.8.0
kubesphere/notification-manager-operator:v1.4.0
kubesphere/notification-manager:v1.4.0
kubesphere/notification-tenant-sidecar:v3.2.0
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4、编写Dockerfile
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| FROM scratch
COPY ../kubesphere .
CMD ["kubectl apply -f manifests/01-kubesphere-installer.yaml \
&& kubectl apply -f manifests/02-cluster-configuration.yaml"]
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5、构建集群镜像
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| sealos build -f Dockerfile -t docker.io/voidking/kubesphere:v3.3.2 .
sealos inspect docker.io/voidking/kubesphere:v3.3.2
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4. 使用KubeSphere集群镜像
4.1. 自定义安装KubeSphere
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| sealos run docker.io/voidking/kubesphere:v3.3.2 --cmd="kubectl apply -f manifests/01-kubesphere-installer.yaml \
&& kubectl apply -f manifests/02-cluster-configuration.yaml"
kubectl get all -n kubesphere-system
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默认帐户 admin ，默认密码 P@88w0rd
4.2. 上传集群镜像
上传到公共镜像仓库
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| sealos push docker.io/voidking/kubesphere:v3.3.2
sealos tag docker.io/voidking/kubesphere:v3.3.2 hub.sealos.cn/voidking/kubesphere:v3.3.2
sealos login -k config.yml hub.sealos.cn
sealos push hub.sealos.cn/voidking/kubesphere:v3.3.2
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上传到私有镜像仓库
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| sealos tag docker.io/voidking/kubesphere:v3.3.2 harbor.voidking.com/sealos/kubesphere:v3.3.2
sealos login harbor.voidking.com
sealos push harbor.voidking.com/sealos/kubesphere:v3.3.2
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