Karmada

Karmada (Kubernetes Armada) is a Kubernetes management system that enables you to run your cloud-native applications across multiple Kubernetes clusters and clouds, with no changes to your applications. By speaking Kubernetes-native APIs and providing advanced scheduling capabilities, Karmada enables truly open, multi-cloud Kubernetes.

Karmada aims to provide turnkey automation for multi-cluster application management in multi-cloud and hybrid cloud scenarios, with key features such as centralized multi-cloud management, high availability, failure recovery, and traffic scheduling.

TL;DR

Switch to the root directory of the repo.

$ helm install karmada -n karmada-system --create-namespace ./charts

Prerequisites

• Kubernetes 1.16+
• helm v3+

Installing the Chart

To install the chart with the release name karmada in namespace karmada-system:

Switch to the root directory of the repo.

$ helm install karmada -n karmada-system --create-namespace ./charts

Get kubeconfig from the cluster:

$ kubectl get secret -n karmada-system karmada-kubeconfig -o jsonpath={.data.kubeconfig} | base64 -d

Tip: List all releases using helm list

Uninstalling the Chart

To uninstall/delete the karmada helm release in namespace karmada-system:

$ helm uninstall karmada -n karmada-system

The command removes all the Kubernetes components associated with the chart and deletes the release.

Example

1. Install agent

Edited values.yaml

installMode: "agent"
agent:
  clusterName: "member"
  ## kubeconfig of the karmada
  kubeconfig:
    caCrt: |
      -----BEGIN CERTIFICATE-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END CERTIFICATE-----
    crt: |
      -----BEGIN CERTIFICATE-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END CERTIFICATE-----
    key: |
      -----BEGIN RSA PRIVATE KEY-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END RSA PRIVATE KEY-----
    server: "https://apiserver.karmada"

Execute command (switch to the root directory of the repo, and sets the current-context in a kubeconfig file)

$ kubectl config use-context member
$ helm install karmada-agent -n karmada-system --create-namespace ./charts

2. Install component

Edited values.yaml

installMode: "component"
components: [
  "schedulerEstimator"
]
schedulerEstimator:
  clusterName: "member"
  ## kubeconfig of the member cluster
  kubeconfig:
    caCrt: |
      -----BEGIN CERTIFICATE-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END CERTIFICATE-----
    crt: |
      -----BEGIN CERTIFICATE-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END CERTIFICATE-----
    key: |
      -----BEGIN RSA PRIVATE KEY-----
      XXXXXXXXXXXXXXXXXXXXXXXXXXX
      -----END RSA PRIVATE KEY-----
    server: "https://apiserver.member"

Execute command (switch to the root directory of the repo, and sets the current-context in a kubeconfig file)

$ kubectl config use-context host
$ helm install karmada-scheduler-estimator -n karmada-system ./charts

Configuration

Name	Description	Value
installMode	InstallMode "host", "agent" and "component" are provided, "host" means install karmada in the control-cluster, "agent" means install agent client in the member cluster, "component" means install selected components in the control-cluster	"host"
clusterDomain	Default cluster domain for karmada	"cluster.local"
components	Selected components list, selectable values: "schedulerEstimator"	[]
certs.mode	Mode "auto" and "custom" are provided, "auto" means auto generate certificate, "custom" means use user certificate	"auto"
certs.auto.expiry	Expiry of the certificate	"43800h"
certs.auto.hosts	Hosts of the certificate	["kubernetes.default.svc","*.etcd.karmada-system.svc.cluster.local","*.karmada-system.svc.cluster.local","*.karmada-system.svc","localhost","127.0.0.1"]
certs.custom.caCrt	CA CRT of the certificate	""
certs.custom.crt	CRT of the certificate	""
certs.custom.key	KEY of the certificate	""
etcd.mode	Mode "external" and "internal" are provided, "external" means use external ectd, "internal" means install a etcd in the cluster	"internal"
etcd.external.servers	Servers of etcd	""
etcd.external.registryPrefix	Use to registry prefix of etcd	"/registry/karmada"
etcd.external.certs.caCrt	CA CRT of the etcd certificate	""
etcd.external.certs.crt	CRT of the etcd certificate	""
etcd.external.certs.key	KEY of the etcd certificate	""
etcd.internal.replicaCount	Target replicas of the etcd	1
etcd.internal.image.repository	Image of the etcd	"k8s.gcr.io/etcd"
etcd.internal.image.pullPolicy	Image pull policy of the etcd	"IfNotPresent"
etcd.internal.image.tag	Image tag of the etcd	"3.4.13-0"
agent.clusterName	Name of the member cluster	""
agent.kubeconfig.caCrt	CA CRT of the karmada certificate	""
agent.kubeconfig.crt	CRT of the karmada certificate	""
agent.kubeconfig.key	KEY of the karmada certificate	""
agent.kubeconfig.server	API-server of the karmada	""
agent.labels	Labels of the agent deployment	{"app": "karmada-agent"}
agent.replicaCount	Target replicas of the agent	1
agent.podLabels	Labels of the agent pods	{}
agent.podAnnotations	Annotaions of the agent pods	{}
agent.imagePullSecrets	Image pull secret of the agent	[]
agent.image.repository	Image of the agent	"swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-agent"
agent.image.tag	Image tag of the agent	"latest"
agent.image.pullPolicy	Image pull policy of the agent	"IfNotPresent"
agent.resources	Resource quota of the agent	{}
agent.nodeSelector	Node selector of the agent	{}
agent.affinity	Affinity of the agent	{}
agent.tolerations	Tolerations of the agent	[]
scheduler.labels	Labels of the schedeler deployment	{"app": "karmada-scheduler"}
scheduler.replicaCount	Target replicas of the scheduler	1
scheduler.podLabels	Labels of the scheduler pods	{}
scheduler.podAnnotations	Annotaions of the scheduler pods	{}
scheduler.imagePullSecrets	Image pull secret of the scheduler	[]
scheduler.image.repository	Image of the scheduler	"swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-scheduler"
scheduler.image.tag	Image tag of the scheduler	"latest"
scheduler.image.pullPolicy	Image pull policy of the scheduler	"IfNotPresent"
scheduler.resources	Resource quota of the scheduler	{}
scheduler.nodeSelector	Node selector of the scheduler	{}
scheduler.affinity	Affinity of the scheduler	{}
scheduler.tolerations	Tolerations of the scheduler	[]
webhook.labels	Labels of the webhook deployment	{"app": "karmada-webhook"}
webhook.replicaCount	Target replicas of the webhook	1
webhook.podLabels	Labels of the webhook pods	{}
webhook.podAnnotations	Annotaions of the webhook pods	{}
webhook.imagePullSecrets	Image pull secret of the webhook	[]
webhook.image.repository	Image of the webhook	"swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-webhook"
webhook.image.tag	Image tag of the webhook	"latest"
webhook.image.pullPolicy	Image pull policy of the webhook	"IfNotPresent"
webhook.resources	Resource quota of the webhook	{}
webhook.nodeSelector	Node selector of the webhook	{}
webhook.affinity	Affinity of the webhook	{}
webhook.tolerations	Tolerations of the webhook	[]
controllerManager.labels	Labels of the karmada-controller-manager deployment	{"app": "karmada-controller-manager"}
controllerManager.replicaCount	Target replicas of the karmada-controller-manager	1
controllerManager.podLabels	Labels of the karmada-controller-manager pods	{}
controllerManager.podAnnotations	Annotaions of the karmada-controller-manager pods	{}
controllerManager.imagePullSecrets	Image pull secret of the karmada-controller-manager	[]
controllerManager.image.repository	Image of the karmada-controller-manager	"swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-controller-manager"
controllerManager.image.tag	Image tag of the karmada-controller-manager	"latest"
controllerManager.image.pullPolicy	Image pull policy of the karmada-controller-manager	"IfNotPresent"
controllerManager.resources	Resource quota of the karmada-controller-manager	{}
controllerManager.nodeSelector	Node selector of the karmada-controller-manager	{}
controllerManager.affinity	Affinity of the karmada-controller-manager	{}
controllerManager.tolerations	Tolerations of the karmada-controller-manager	[]
apiServer.labels	Labels of the karmada-apiserver deployment	{"app": "karmada-apiserver"}
apiServer.replicaCount	Target replicas of the karmada-apiserver	1
apiServer.podLabels	Labels of the karmada-apiserver pods	{}
apiServer.podAnnotations	Annotaions of the karmada-apiserver pods	{}
apiServer.imagePullSecrets	Image pull secret of the karmada-apiserver	[]
apiServer.image.repository	Image of the karmada-apiserver	"k8s.gcr.io/kube-apiserver"
apiServer.image.tag	Image tag of the karmada-apiserver	"v1.19.1"
apiServer.image.pullPolicy	Image pull policy of the karmada-apiserver	"IfNotPresent"
apiServer.resources	Resource quota of the karmada-apiserver	{}
apiServer.nodeSelector	Node selector of the karmada-apiserver	{}
apiServer.affinity	Affinity of the karmada-apiserver	{}
apiServer.tolerations	Tolerations of the karmada-apiserver	[]
kubeControllerManager.labels	Labels of the kube-controller-manager deployment	{"app": "kube-controller-manager"}
kubeControllerManager.replicaCount	Target replicas of the kube-controller-manager	1
kubeControllerManager.podLabels	Labels of the kube-controller-manager pods	{}
kubeControllerManager.podAnnotations	Annotaions of the kube-controller-manager pods	{}
kubeControllerManager.imagePullSecrets	Image pull secret of the kube-controller-manager	[]
kubeControllerManager.image.repository	Image of the kube-controller-manager	"k8s.gcr.io/kube-controller-manager"
kubeControllerManager.image.tag	Image tag of the kube-controller-manager	"v1.19.1"
kubeControllerManager.image.pullPolicy	Image pull policy of the kube-controller-manager	"IfNotPresent"
kubeControllerManager.resources	Resource quota of the kube-controller-manager	{}
kubeControllerManager.nodeSelector	Node selector of the kube-controller-manager	{}
kubeControllerManager.affinity	Affinity of the kube-controller-manager	{}
kubeControllerManager.tolerations	Tolerations of the kube-controller-manager	[]
schedulerEstimator.clusterName	Name of the member cluster	""
schedulerEstimator.kubeconfig.caCrt	CA CRT of the certificate	""
schedulerEstimator.kubeconfig.crt	CRT of the certificate	""
schedulerEstimator.kubeconfig.key	KEY of the certificate	""
schedulerEstimator.kubeconfig.server	API-server of the member cluster	""
schedulerEstimator.labels	Labels of the scheduler-estimator deployment	{}
schedulerEstimator.replicaCount	Target replicas of the scheduler-estimator	1
schedulerEstimator.podLabels	Labels of the scheduler-estimator pods	{}
schedulerEstimator.podAnnotations	Annotaions of the scheduler-estimator pods	{}
schedulerEstimator.imagePullSecrets	Image pull secret of the scheduler-estimator	[]
schedulerEstimator.image.repository	Image of the scheduler-estimator	"swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-scheduler-estimator"
schedulerEstimator.image.tag	Image tag of the scheduler-estimator	"latest"
schedulerEstimator.image.pullPolicy	Image pull policy of the scheduler-estimator	"IfNotPresent"
schedulerEstimator.resources	Resource quota of the scheduler-estimator	{}
schedulerEstimator.nodeSelector	Node selector of the scheduler-estimator	{}
schedulerEstimator.affinity	Affinity of the scheduler-estimator	{}
schedulerEstimator.tolerations	Tolerations of the scheduler-estimator	[]