Visão geral do Kubernetes
Use o kubeadm para implantar rapidamente um cluster k8s
Implantação binária do cluster de alta disponibilidade do Kubernetes (1) Preparação do host e instalação do balanceador de carga Implantação
binária do cluster de alta disponibilidade Kubernetes (2) Implantação do cluster ETCD
Implantação binária do cluster de alta disponibilidade do Kubernetes (3) Implantar API -servidor
Implementação binária de cluster de alta disponibilidade do Kubernetes (4) Implantar kubectl e kube-controller-manager, kube-scheduler
Implementação binária do cluster de alta disponibilidade do Kubernetes (5) kubelet, kube-proxy, Calico, CoreDNS
Implementação binária do cluster de alta disponibilidade do Kubernetes (6) Adição de nó de cluster do Kubernetes
1. Implante o kubectl
1.1 Criar um arquivo de solicitação de certificado kubectl
Executar no master1
[root@k8s-master1 /]#cd /data/k8s-work
cat > admin-csr.json << "EOF"
{
"CN": "admin",
"hosts": [], #通过conf文件对集群进行访问，所以这里不指定主机
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:masters",
"OU": "system"
}
]
}
EOF
说明：
后续 kube-apiserver 使用 RBAC 对客户端(如 kubelet、kube-proxy、Pod)请求进行授权；
kube-apiserver 预定义了一些 RBAC 使用的 RoleBindings，如 cluster-admin 将 Group system:masters 与 Role cluster-admin 绑定，该 Role 授予了调用kube-apiserver 的所有 API的权限；
O指定该证书的 Group 为 system:masters，kubelet 使用该证书访问 kube-apiserver 时 ，由于证书被 CA 签名，所以认证通过，同时由于证书用户组为经过预授权的 system:masters，所以被授予访问所有 API 的权限；
注：
这个admin 证书，是将来生成管理员用的kubeconfig 配置文件用的，现在我们一般建议使用RBAC 来对kubernetes 进行角色权限控制， kubernetes 将证书中的CN 字段 作为User， O 字段作为 Group；
"O": "system:masters", 必须是system:masters，否则后面kubectl create clusterrolebinding报错。
1.2 Gerar arquivo de certificado
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare admin
1.3 Copie o arquivo para o diretório especificado
cp admin*.pem /etc/kubernetes/ssl/
1.4 Gerar arquivo de configuração kubeconfig
kube.config`` 为 Todas as informações do kubectl 的配置文件，包含访问 `apiserver, como endereço do apiserver, certificado CA e certificado usado por ele mesmo
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube.config
# cat kube.config
#设置管理员证书
kubectl config set-credentials admin --client-certificate=admin.pem --client-key=admin-key.pem --embed-certs=true --kubeconfig=kube.config
# cat kube.config
#设置安全上下文
kubectl config set-context kubernetes --cluster=kubernetes --user=admin --kubeconfig=kube.config
# cat kube.config
kubectl config use-context kubernetes --kubeconfig=kube.config
1.5 Prepare o arquivo de configuração kubectl e execute a ligação de função
mkdir ~/.kube
cp kube.config ~/.kube/config
kubectl create clusterrolebinding kube-apiserver:kubelet-apis --clusterrole=system:kubelet-api-admin --user kubernetes --kubeconfig=/root/.kube/config
1.6 Exibir status do cluster
export KUBECONFIG=$HOME/.kube/config
kubectl cluster-info
kubectl get componentstatuses
kubectl get all --all-namespaces
1.7 Sincronize o arquivo de configuração kubectl com outros nós mestres no cluster
k8s-master2:
mkdir /root/.kube
k8s-master3:
mkdir /root/.kube
scp /root/.kube/config k8s-master2:/root/.kube/config
scp /root/.kube/config k8s-master3:/root/.kube/config
1.8 Configurar a conclusão do comando kubectl (opcional)
yum install -y bash-completion
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
kubectl completion bash > ~/.kube/completion.bash.inc
source '/root/.kube/completion.bash.inc'
source $HOME/.bash_profile
2. Implante o kube-controller-manager
2.1 Criar arquivo de solicitação de certificado kube-controller-manager
Executar no master1
[root@k8s-master1 k8s-work]#cat > kube-controller-manager-csr.json << "EOF"
{
"CN": "system:kube-controller-manager",
"key": {
"algo": "rsa",
"size": 2048
},
"hosts": [
"127.0.0.1",
"192.168.10.103", #三台master的ip
"192.168.10.104",
"192.168.10.105"
],
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:kube-controller-manager",
"OU": "system"
}
]
}
EOF
说明：
hosts 列表包含所有 kube-controller-manager 节点 IP；
CN 为 system:kube-controller-manager、O 为 system:kube-controller-manager，kubernetes 内置的 ClusterRoleBindings system:kube-controller-manager 赋予 kube-controller-manager 工作所需的权限
2.2 Criar arquivo de certificado kube-controller-manager
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-controller-manager-csr.json | cfssljson -bare kube-controller-manager
# ls
kube-controller-manager.csr
kube-controller-manager-csr.json
kube-controller-manager-key.pem
kube-controller-manager.pem
2.3 Criar kube-controller-manager.kubeconfig do kube-controller-manager
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube-controller-manager.kubeconfig
kubectl config set-credentials system:kube-controller-manager --client-certificate=kube-controller-manager.pem --client-key=kube-controller-manager-key.pem --embed-certs=true --kubeconfig=kube-controller-manager.kubeconfig
kubectl config set-context system:kube-controller-manager --cluster=kubernetes --user=system:kube-controller-manager --kubeconfig=kube-controller-manager.kubeconfig
kubectl config use-context system:kube-controller-manager --kubeconfig=kube-controller-manager.kubeconfig
2.4 Criar arquivo de configuração kube-controller-manager
cat > kube-controller-manager.conf << "EOF"
KUBE_CONTROLLER_MANAGER_OPTS="--port=10252 \
--secure-port=10257 \
--bind-address=127.0.0.1 \
--kubeconfig=/etc/kubernetes/kube-controller-manager.kubeconfig \
--service-cluster-ip-range=10.96.0.0/16 \
--cluster-name=kubernetes \
--cluster-signing-cert-file=/etc/kubernetes/ssl/ca.pem \
--cluster-signing-key-file=/etc/kubernetes/ssl/ca-key.pem \
--allocate-node-cidrs=true \
--cluster-cidr=10.244.0.0/16 \
--experimental-cluster-signing-duration=87600h \
--root-ca-file=/etc/kubernetes/ssl/ca.pem \
--service-account-private-key-file=/etc/kubernetes/ssl/ca-key.pem \
--leader-elect=true \
--feature-gates=RotateKubeletServerCertificate=true \
--controllers=*,bootstrapsigner,tokencleaner \
--horizontal-pod-autoscaler-use-rest-clients=true \
--horizontal-pod-autoscaler-sync-period=10s \
--tls-cert-file=/etc/kubernetes/ssl/kube-controller-manager.pem \
--tls-private-key-file=/etc/kubernetes/ssl/kube-controller-manager-key.pem \
--use-service-account-credentials=true \
--alsologtostderr=true \
--logtostderr=false \
--log-dir=/var/log/kubernetes \
--v=2"
EOF
2.5 Crie um arquivo de inicialização de serviço
[root@k8s-master1 k8s-work]# cat > kube-controller-manager.service << "EOF"
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/etc/kubernetes/kube-controller-manager.conf
ExecStart=/usr/local/bin/kube-controller-manager $KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
EOF
2.6 Sincronizar arquivos com o nó mestre do cluster
cp kube-controller-manager*.pem /etc/kubernetes/ssl/
cp kube-controller-manager.kubeconfig /etc/kubernetes/
cp kube-controller-manager.conf /etc/kubernetes/
cp kube-controller-manager.service /usr/lib/systemd/system/
scp kube-controller-manager*.pem k8s-master2:/etc/kubernetes/ssl/
scp kube-controller-manager*.pem k8s-master3:/etc/kubernetes/ssl/
scp kube-controller-manager.kubeconfig kube-controller-manager.conf k8s-master2:/etc/kubernetes/
scp kube-controller-manager.kubeconfig kube-controller-manager.conf k8s-master3:/etc/kubernetes/
scp kube-controller-manager.service k8s-master2:/usr/lib/systemd/system/
scp kube-controller-manager.service k8s-master3:/usr/lib/systemd/system/
#查看证书
openssl x509 -in /etc/kubernetes/ssl/kube-controller-manager.pem -noout -text
2.7 Inicie o serviço
systemctl daemon-reload
systemctl enable --now kube-controller-manager
systemctl status kube-controller-manager
kubectl get componentstatuses
3. Implante o agendador de kube
3.1 Criar arquivo de solicitação de certificado kube-scheduler
[root@k8s-master1 k8s-work]# cat > kube-scheduler-csr.json << "EOF"
{
"CN": "system:kube-scheduler",
"hosts": [
"127.0.0.1",
"192.168.10.103",
"192.168.10.104",
"192.168.10.105"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:kube-scheduler",
"OU": "system"
}
]
}
EOF
3.2 Gerar certificado do kube-scheduler
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-scheduler-csr.json | cfssljson -bare kube-scheduler
# ls
kube-scheduler.csr
kube-scheduler-csr.json
kube-scheduler-key.pem
kube-scheduler.pem
3.3 Criar kubeconfig para kube-scheduler
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube-scheduler.kubeconfig
kubectl config set-credentials system:kube-scheduler --client-certificate=kube-scheduler.pem --client-key=kube-scheduler-key.pem --embed-certs=true --kubeconfig=kube-scheduler.kubeconfig
kubectl config set-context system:kube-scheduler --cluster=kubernetes --user=system:kube-scheduler --kubeconfig=kube-scheduler.kubeconfig
kubectl config use-context system:kube-scheduler --kubeconfig=kube-scheduler.kubeconfig
3.4 Criar um arquivo de configuração de serviço
cat > kube-scheduler.conf << "EOF"
KUBE_SCHEDULER_OPTS="--address=127.0.0.1 \
--kubeconfig=/etc/kubernetes/kube-scheduler.kubeconfig \
--leader-elect=true \
--alsologtostderr=true \
--logtostderr=false \
--log-dir=/var/log/kubernetes \
--v=2"
EOF
3.5 Crie um arquivo de configuração de inicialização do serviço
cat > kube-scheduler.service << "EOF"
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/etc/kubernetes/kube-scheduler.conf
ExecStart=/usr/local/bin/kube-scheduler $KUBE_SCHEDULER_OPTS
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
EOF
3.6 Sincronizar arquivos com o nó mestre do cluster
cp kube-scheduler*.pem /etc/kubernetes/ssl/
cp kube-scheduler.kubeconfig /etc/kubernetes/
cp kube-scheduler.conf /etc/kubernetes/
cp kube-scheduler.service /usr/lib/systemd/system/
scp kube-scheduler*.pem k8s-master2:/etc/kubernetes/ssl/
scp kube-scheduler*.pem k8s-master3:/etc/kubernetes/ssl/
scp kube-scheduler.kubeconfig kube-scheduler.conf k8s-master2:/etc/kubernetes/
scp kube-scheduler.kubeconfig kube-scheduler.conf k8s-master3:/etc/kubernetes/
scp kube-scheduler.service k8s-master2:/usr/lib/systemd/system/
scp kube-scheduler.service k8s-master3:/usr/lib/systemd/system/
3.7 Iniciar o serviço
systemctl daemon-reload
systemctl enable --now kube-scheduler
systemctl status kube-scheduler
kubectl get componentstatuses
[A transferência da imagem do link externo falhou, o site de origem pode ter um mecanismo anti-leeching, é recomendável salvar a imagem e carregá-la diretamente (img-KAnxrdBq-1691074083716)(img/2023-08-02-22-15-45 .png)]## 1. Implantar kubectl
1.1 Criar um arquivo de solicitação de certificado kubectl
Executar no master1
[root@k8s-master1 /]#cd /data/k8s-work
cat > admin-csr.json << "EOF"
{
"CN": "admin",
"hosts": [], #通过conf文件对集群进行访问，所以这里不指定主机
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:masters",
"OU": "system"
}
]
}
EOF
说明：
后续 kube-apiserver 使用 RBAC 对客户端(如 kubelet、kube-proxy、Pod)请求进行授权；
kube-apiserver 预定义了一些 RBAC 使用的 RoleBindings，如 cluster-admin 将 Group system:masters 与 Role cluster-admin 绑定，该 Role 授予了调用kube-apiserver 的所有 API的权限；
O指定该证书的 Group 为 system:masters，kubelet 使用该证书访问 kube-apiserver 时 ，由于证书被 CA 签名，所以认证通过，同时由于证书用户组为经过预授权的 system:masters，所以被授予访问所有 API 的权限；
注：
这个admin 证书，是将来生成管理员用的kubeconfig 配置文件用的，现在我们一般建议使用RBAC 来对kubernetes 进行角色权限控制， kubernetes 将证书中的CN 字段 作为User， O 字段作为 Group；
"O": "system:masters", 必须是system:masters，否则后面kubectl create clusterrolebinding报错。
1.2 Gerar arquivo de certificado
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare admin
1.3 Copie o arquivo para o diretório especificado
cp admin*.pem /etc/kubernetes/ssl/
1.4 Gerar arquivo de configuração kubeconfig
kube.config`` 为 Todas as informações do kubectl 的配置文件，包含访问 `apiserver, como endereço do apiserver, certificado CA e certificado usado por ele mesmo
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube.config
# cat kube.config
#设置管理员证书
kubectl config set-credentials admin --client-certificate=admin.pem --client-key=admin-key.pem --embed-certs=true --kubeconfig=kube.config
# cat kube.config
#设置安全上下文
kubectl config set-context kubernetes --cluster=kubernetes --user=admin --kubeconfig=kube.config
# cat kube.config
kubectl config use-context kubernetes --kubeconfig=kube.config
1.5 Prepare o arquivo de configuração kubectl e execute a ligação de função
mkdir ~/.kube
cp kube.config ~/.kube/config
kubectl create clusterrolebinding kube-apiserver:kubelet-apis --clusterrole=system:kubelet-api-admin --user kubernetes --kubeconfig=/root/.kube/config
1.6 Exibir status do cluster
export KUBECONFIG=$HOME/.kube/config
kubectl cluster-info
kubectl get componentstatuses
kubectl get all --all-namespaces
1.7 Sincronize o arquivo de configuração kubectl com outros nós mestres no cluster
k8s-master2:
mkdir /root/.kube
k8s-master3:
mkdir /root/.kube
scp /root/.kube/config k8s-master2:/root/.kube/config
scp /root/.kube/config k8s-master3:/root/.kube/config
1.8 Configurar a conclusão do comando kubectl (opcional)
yum install -y bash-completion
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
kubectl completion bash > ~/.kube/completion.bash.inc
source '/root/.kube/completion.bash.inc'
source $HOME/.bash_profile
2. Implante o kube-controller-manager
2.1 Criar arquivo de solicitação de certificado kube-controller-manager
Executar no master1
[root@k8s-master1 k8s-work]#cat > kube-controller-manager-csr.json << "EOF"
{
"CN": "system:kube-controller-manager",
"key": {
"algo": "rsa",
"size": 2048
},
"hosts": [
"127.0.0.1",
"192.168.10.103", #三台master的ip
"192.168.10.104",
"192.168.10.105"
],
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:kube-controller-manager",
"OU": "system"
}
]
}
EOF
说明：
hosts 列表包含所有 kube-controller-manager 节点 IP；
CN 为 system:kube-controller-manager、O 为 system:kube-controller-manager，kubernetes 内置的 ClusterRoleBindings system:kube-controller-manager 赋予 kube-controller-manager 工作所需的权限
2.2 Criar arquivo de certificado kube-controller-manager
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-controller-manager-csr.json | cfssljson -bare kube-controller-manager
# ls
kube-controller-manager.csr
kube-controller-manager-csr.json
kube-controller-manager-key.pem
kube-controller-manager.pem
2.3 Criar kube-controller-manager.kubeconfig do kube-controller-manager
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube-controller-manager.kubeconfig
kubectl config set-credentials system:kube-controller-manager --client-certificate=kube-controller-manager.pem --client-key=kube-controller-manager-key.pem --embed-certs=true --kubeconfig=kube-controller-manager.kubeconfig
kubectl config set-context system:kube-controller-manager --cluster=kubernetes --user=system:kube-controller-manager --kubeconfig=kube-controller-manager.kubeconfig
kubectl config use-context system:kube-controller-manager --kubeconfig=kube-controller-manager.kubeconfig
2.4 Criar arquivo de configuração kube-controller-manager
cat > kube-controller-manager.conf << "EOF"
KUBE_CONTROLLER_MANAGER_OPTS="--port=10252 \
--secure-port=10257 \
--bind-address=127.0.0.1 \
--kubeconfig=/etc/kubernetes/kube-controller-manager.kubeconfig \
--service-cluster-ip-range=10.96.0.0/16 \
--cluster-name=kubernetes \
--cluster-signing-cert-file=/etc/kubernetes/ssl/ca.pem \
--cluster-signing-key-file=/etc/kubernetes/ssl/ca-key.pem \
--allocate-node-cidrs=true \
--cluster-cidr=10.244.0.0/16 \
--experimental-cluster-signing-duration=87600h \
--root-ca-file=/etc/kubernetes/ssl/ca.pem \
--service-account-private-key-file=/etc/kubernetes/ssl/ca-key.pem \
--leader-elect=true \
--feature-gates=RotateKubeletServerCertificate=true \
--controllers=*,bootstrapsigner,tokencleaner \
--horizontal-pod-autoscaler-use-rest-clients=true \
--horizontal-pod-autoscaler-sync-period=10s \
--tls-cert-file=/etc/kubernetes/ssl/kube-controller-manager.pem \
--tls-private-key-file=/etc/kubernetes/ssl/kube-controller-manager-key.pem \
--use-service-account-credentials=true \
--alsologtostderr=true \
--logtostderr=false \
--log-dir=/var/log/kubernetes \
--v=2"
EOF
2.5 Crie um arquivo de inicialização de serviço
[root@k8s-master1 k8s-work]# cat > kube-controller-manager.service << "EOF"
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/etc/kubernetes/kube-controller-manager.conf
ExecStart=/usr/local/bin/kube-controller-manager $KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
EOF
2.6 Sincronizar arquivos com o nó mestre do cluster
cp kube-controller-manager*.pem /etc/kubernetes/ssl/
cp kube-controller-manager.kubeconfig /etc/kubernetes/
cp kube-controller-manager.conf /etc/kubernetes/
cp kube-controller-manager.service /usr/lib/systemd/system/
scp kube-controller-manager*.pem k8s-master2:/etc/kubernetes/ssl/
scp kube-controller-manager*.pem k8s-master3:/etc/kubernetes/ssl/
scp kube-controller-manager.kubeconfig kube-controller-manager.conf k8s-master2:/etc/kubernetes/
scp kube-controller-manager.kubeconfig kube-controller-manager.conf k8s-master3:/etc/kubernetes/
scp kube-controller-manager.service k8s-master2:/usr/lib/systemd/system/
scp kube-controller-manager.service k8s-master3:/usr/lib/systemd/system/
#查看证书
openssl x509 -in /etc/kubernetes/ssl/kube-controller-manager.pem -noout -text
2.7 Inicie o serviço
systemctl daemon-reload
systemctl enable --now kube-controller-manager
systemctl status kube-controller-manager
kubectl get componentstatuses
3. Implante o agendador de kube
3.1 Criar arquivo de solicitação de certificado kube-scheduler
[root@k8s-master1 k8s-work]# cat > kube-scheduler-csr.json << "EOF"
{
"CN": "system:kube-scheduler",
"hosts": [
"127.0.0.1",
"192.168.10.103",
"192.168.10.104",
"192.168.10.105"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "Beijing",
"L": "Beijing",
"O": "system:kube-scheduler",
"OU": "system"
}
]
}
EOF
3.2 Gerar certificado do kube-scheduler
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-scheduler-csr.json | cfssljson -bare kube-scheduler
# ls
kube-scheduler.csr
kube-scheduler-csr.json
kube-scheduler-key.pem
kube-scheduler.pem
3.3 Criar kubeconfig para kube-scheduler
kubectl config set-cluster kubernetes --certificate-authority=ca.pem --embed-certs=true --server=https://192.168.10.100:6443 --kubeconfig=kube-scheduler.kubeconfig
kubectl config set-credentials system:kube-scheduler --client-certificate=kube-scheduler.pem --client-key=kube-scheduler-key.pem --embed-certs=true --kubeconfig=kube-scheduler.kubeconfig
kubectl config set-context system:kube-scheduler --cluster=kubernetes --user=system:kube-scheduler --kubeconfig=kube-scheduler.kubeconfig
kubectl config use-context system:kube-scheduler --kubeconfig=kube-scheduler.kubeconfig
3.4 Criar um arquivo de configuração de serviço
cat > kube-scheduler.conf << "EOF"
KUBE_SCHEDULER_OPTS="--address=127.0.0.1 \
--kubeconfig=/etc/kubernetes/kube-scheduler.kubeconfig \
--leader-elect=true \
--alsologtostderr=true \
--logtostderr=false \
--log-dir=/var/log/kubernetes \
--v=2"
EOF
3.5 Crie um arquivo de configuração de inicialização do serviço
cat > kube-scheduler.service << "EOF"
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=-/etc/kubernetes/kube-scheduler.conf
ExecStart=/usr/local/bin/kube-scheduler $KUBE_SCHEDULER_OPTS
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
EOF
3.6 Sincronizar arquivos com o nó mestre do cluster
cp kube-scheduler*.pem /etc/kubernetes/ssl/
cp kube-scheduler.kubeconfig /etc/kubernetes/
cp kube-scheduler.conf /etc/kubernetes/
cp kube-scheduler.service /usr/lib/systemd/system/
scp kube-scheduler*.pem k8s-master2:/etc/kubernetes/ssl/
scp kube-scheduler*.pem k8s-master3:/etc/kubernetes/ssl/
scp kube-scheduler.kubeconfig kube-scheduler.conf k8s-master2:/etc/kubernetes/
scp kube-scheduler.kubeconfig kube-scheduler.conf k8s-master3:/etc/kubernetes/
scp kube-scheduler.service k8s-master2:/usr/lib/systemd/system/
scp kube-scheduler.service k8s-master3:/usr/lib/systemd/system/
3.7 Iniciar o serviço
systemctl daemon-reload
systemctl enable --now kube-scheduler
systemctl status kube-scheduler
kubectl get componentstatuses
