k3s/pkg/cli/cmds/server.go

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package cmds
import (
"github.com/urfave/cli"
)
const (
DisableItems = "coredns, servicelb, traefik, local-storage, metrics-server"
)
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type Server struct {
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ClusterCIDR string
AgentToken string
AgentTokenFile string
Token string
TokenFile string
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ClusterSecret string
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ServiceCIDR string
ClusterDNS string
ClusterDomain string
HTTPSPort int
DataDir string
DisableAgent bool
KubeConfigOutput string
KubeConfigMode string
TLSSan cli.StringSlice
BindAddress string
ExtraAPIArgs cli.StringSlice
ExtraSchedulerArgs cli.StringSlice
ExtraControllerArgs cli.StringSlice
ExtraCloudControllerArgs cli.StringSlice
Rootless bool
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DatastoreEndpoint string
DatastoreCAFile string
DatastoreCertFile string
DatastoreKeyFile string
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AdvertiseIP string
AdvertisePort int
DisableScheduler bool
ServerURL string
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FlannelBackend string
DefaultLocalStoragePath string
DisableCCM bool
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DisableNPC bool
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DisableKubeProxy bool
ClusterInit bool
ClusterReset bool
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EncryptSecrets bool
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}
var ServerConfig Server
func NewServerCommand(action func(*cli.Context) error) cli.Command {
return cli.Command{
Name: "server",
Usage: "Run management server",
UsageText: appName + " server [OPTIONS]",
Action: action,
Flags: []cli.Flag{
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VLevel,
VModule,
LogFile,
AlsoLogToStderr,
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cli.StringFlag{
Name: "bind-address",
Usage: "(listener) k3s bind address (default: 0.0.0.0)",
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Destination: &ServerConfig.BindAddress,
},
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cli.IntFlag{
Name: "https-listen-port",
Usage: "(listener) HTTPS listen port",
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Value: 6443,
Destination: &ServerConfig.HTTPSPort,
},
cli.StringFlag{
Name: "advertise-address",
Usage: "(listener) IP address that apiserver uses to advertise to members of the cluster (default: node-external-ip/node-ip)",
Destination: &ServerConfig.AdvertiseIP,
},
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cli.IntFlag{
Name: "advertise-port",
Usage: "(listener) Port that apiserver uses to advertise to members of the cluster (default: listen-port)",
Destination: &ServerConfig.AdvertisePort,
},
cli.StringSliceFlag{
Name: "tls-san",
Usage: "(listener) Add additional hostname or IP as a Subject Alternative Name in the TLS cert",
Value: &ServerConfig.TLSSan,
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},
cli.StringFlag{
Name: "data-dir,d",
Usage: "(data) Folder to hold state default /var/lib/rancher/k3s or ${HOME}/.rancher/k3s if not root",
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Destination: &ServerConfig.DataDir,
},
cli.StringFlag{
Name: "cluster-cidr",
Usage: "(networking) Network CIDR to use for pod IPs",
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Destination: &ServerConfig.ClusterCIDR,
Value: "10.42.0.0/16",
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},
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cli.StringFlag{
Name: "service-cidr",
Usage: "(networking) Network CIDR to use for services IPs",
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Destination: &ServerConfig.ServiceCIDR,
Value: "10.43.0.0/16",
},
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cli.StringFlag{
Name: "cluster-dns",
Usage: "(networking) Cluster IP for coredns service. Should be in your service-cidr range (default: 10.43.0.10)",
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Destination: &ServerConfig.ClusterDNS,
Value: "",
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},
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cli.StringFlag{
Name: "cluster-domain",
Usage: "(networking) Cluster Domain",
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Destination: &ServerConfig.ClusterDomain,
Value: "cluster.local",
},
cli.StringFlag{
Name: "flannel-backend",
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Usage: "(networking) One of 'none', 'vxlan', 'ipsec', 'host-gw', or 'wireguard'",
Destination: &ServerConfig.FlannelBackend,
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Value: "vxlan",
},
cli.StringFlag{
Name: "token,t",
Usage: "(cluster) Shared secret used to join a server or agent to a cluster",
Destination: &ServerConfig.Token,
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EnvVar: "K3S_TOKEN",
},
cli.StringFlag{
Name: "token-file",
Usage: "(cluster) File containing the cluster-secret/token",
Destination: &ServerConfig.TokenFile,
EnvVar: "K3S_TOKEN_FILE",
},
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cli.StringFlag{
Name: "write-kubeconfig,o",
Usage: "(client) Write kubeconfig for admin client to this file",
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Destination: &ServerConfig.KubeConfigOutput,
EnvVar: "K3S_KUBECONFIG_OUTPUT",
},
cli.StringFlag{
Name: "write-kubeconfig-mode",
Usage: "(client) Write kubeconfig with this mode",
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Destination: &ServerConfig.KubeConfigMode,
EnvVar: "K3S_KUBECONFIG_MODE",
},
cli.StringSliceFlag{
Name: "kube-apiserver-arg",
Usage: "(flags) Customized flag for kube-apiserver process",
Value: &ServerConfig.ExtraAPIArgs,
},
cli.StringSliceFlag{
Name: "kube-scheduler-arg",
Usage: "(flags) Customized flag for kube-scheduler process",
Value: &ServerConfig.ExtraSchedulerArgs,
},
cli.StringSliceFlag{
Name: "kube-controller-manager-arg",
Usage: "(flags) Customized flag for kube-controller-manager process",
Value: &ServerConfig.ExtraControllerArgs,
},
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cli.StringSliceFlag{
Name: "kube-cloud-controller-manager-arg",
Usage: "(flags) Customized flag for kube-cloud-controller-manager process",
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Value: &ServerConfig.ExtraCloudControllerArgs,
},
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cli.StringFlag{
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Name: "datastore-endpoint",
Usage: "(db) Specify etcd, Mysql, Postgres, or Sqlite (default) data source name",
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Destination: &ServerConfig.DatastoreEndpoint,
EnvVar: "K3S_DATASTORE_ENDPOINT",
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},
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cli.StringFlag{
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Name: "datastore-cafile",
Usage: "(db) TLS Certificate Authority file used to secure datastore backend communication",
Destination: &ServerConfig.DatastoreCAFile,
EnvVar: "K3S_DATASTORE_CAFILE",
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},
cli.StringFlag{
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Name: "datastore-certfile",
Usage: "(db) TLS certification file used to secure datastore backend communication",
Destination: &ServerConfig.DatastoreCertFile,
EnvVar: "K3S_DATASTORE_CERTFILE",
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},
cli.StringFlag{
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Name: "datastore-keyfile",
Usage: "(db) TLS key file used to secure datastore backend communication",
Destination: &ServerConfig.DatastoreKeyFile,
EnvVar: "K3S_DATASTORE_KEYFILE",
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},
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cli.StringFlag{
Name: "default-local-storage-path",
Usage: "(storage) Default local storage path for local provisioner storage class",
Destination: &ServerConfig.DefaultLocalStoragePath,
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},
cli.StringSliceFlag{
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Name: "disable",
Usage: "(components) Do not deploy packaged components and delete any deployed components (valid items: " + DisableItems + ")",
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},
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cli.BoolFlag{
Name: "disable-scheduler",
Usage: "(components) Disable Kubernetes default scheduler",
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Destination: &ServerConfig.DisableScheduler,
},
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cli.BoolFlag{
Name: "disable-cloud-controller",
Usage: "(components) Disable k3s default cloud controller manager",
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Destination: &ServerConfig.DisableCCM,
},
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cli.BoolFlag{
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Name: "disable-kube-proxy",
Usage: "(components) Disable running kube-proxy",
Destination: &ServerConfig.DisableKubeProxy,
},
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cli.BoolFlag{
Name: "disable-network-policy",
Usage: "(components) Disable k3s default network policy controller",
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Destination: &ServerConfig.DisableNPC,
},
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NodeNameFlag,
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WithNodeIDFlag,
NodeLabels,
NodeTaints,
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DockerFlag,
DisableSELinuxFlag,
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CRIEndpointFlag,
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PauseImageFlag,
PrivateRegistryFlag,
NodeIPFlag,
NodeExternalIPFlag,
ResolvConfFlag,
FlannelIfaceFlag,
FlannelConfFlag,
ExtraKubeletArgs,
ExtraKubeProxyArgs,
cli.BoolFlag{
Name: "rootless",
Usage: "(experimental) Run rootless",
Destination: &ServerConfig.Rootless,
},
cli.StringFlag{
Name: "agent-token",
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Usage: "(experimental/cluster) Shared secret used to join agents to the cluster, but not servers",
Destination: &ServerConfig.AgentToken,
EnvVar: "K3S_AGENT_TOKEN",
},
cli.StringFlag{
Name: "agent-token-file",
Usage: "(experimental/cluster) File containing the agent secret",
Destination: &ServerConfig.AgentTokenFile,
EnvVar: "K3S_AGENT_TOKEN_FILE",
},
cli.StringFlag{
Name: "server,s",
Usage: "(experimental/cluster) Server to connect to, used to join a cluster",
EnvVar: "K3S_URL",
Destination: &ServerConfig.ServerURL,
},
cli.BoolFlag{
Name: "cluster-init",
Hidden: hideDqlite,
Usage: "(experimental/cluster) Initialize new cluster master",
EnvVar: "K3S_CLUSTER_INIT",
Destination: &ServerConfig.ClusterInit,
},
cli.BoolFlag{
Name: "cluster-reset",
Hidden: hideDqlite,
Usage: "(experimental/cluster) Forget all peers and become a single cluster new cluster master",
EnvVar: "K3S_CLUSTER_RESET",
Destination: &ServerConfig.ClusterReset,
},
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cli.BoolFlag{
Name: "secrets-encryption",
Usage: "(experimental) Enable Secret encryption at rest",
Destination: &ServerConfig.EncryptSecrets,
},
// Hidden/Deprecated flags below
FlannelFlag,
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cli.StringSliceFlag{
Name: "no-deploy",
Usage: "(deprecated) Do not deploy packaged components (valid items: " + DisableItems + ")",
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},
cli.StringFlag{
Name: "cluster-secret",
Usage: "(deprecated) use --token",
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Destination: &ServerConfig.ClusterSecret,
EnvVar: "K3S_CLUSTER_SECRET",
},
cli.BoolFlag{
Name: "disable-agent",
Usage: "Do not run a local agent and register a local kubelet",
Hidden: true,
Destination: &ServerConfig.DisableAgent,
},
cli.StringSliceFlag{
Hidden: true,
Name: "kube-controller-arg",
Usage: "(flags) Customized flag for kube-controller-manager process",
Value: &ServerConfig.ExtraControllerArgs,
},
cli.StringSliceFlag{
Hidden: true,
Name: "kube-cloud-controller-arg",
Usage: "(flags) Customized flag for kube-cloud-controller-manager process",
Value: &ServerConfig.ExtraCloudControllerArgs,
},
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},
}
}