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factory.go
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factory.go
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package dialer
import (
"fmt"
"net"
"time"
"github.com/rancher/rancher/pkg/encryptedstore"
"github.com/rancher/rancher/pkg/nodeconfig"
"github.com/rancher/rancher/pkg/remotedialer"
"github.com/rancher/rancher/pkg/tunnelserver"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/config"
"github.com/rancher/types/config/dialer"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/tools/cache"
)
func NewFactory(apiContext *config.ScaledContext) (dialer.Factory, error) {
authorizer := tunnelserver.NewAuthorizer(apiContext)
tunneler := tunnelserver.NewTunnelServer(apiContext, authorizer)
secretStore, err := nodeconfig.NewStore(apiContext.Core.Namespaces(""), apiContext.K8sClient.CoreV1())
if err != nil {
return nil, err
}
apiContext.Management.Nodes("local").Controller().Informer().AddIndexers(cache.Indexers{
nodeAccessIndexer: nodeIndexer,
})
return &Factory{
clusterLister: apiContext.Management.Clusters("").Controller().Lister(),
localNodeController: apiContext.Management.Nodes("local").Controller(),
nodeLister: apiContext.Management.Nodes("").Controller().Lister(),
TunnelServer: tunneler,
TunnelAuthorizer: authorizer,
store: secretStore,
}, nil
}
type Factory struct {
localNodeController v3.NodeController
nodeLister v3.NodeLister
clusterLister v3.ClusterLister
TunnelServer *remotedialer.Server
TunnelAuthorizer *tunnelserver.Authorizer
store *encryptedstore.GenericEncryptedStore
}
func (f *Factory) ClusterDialer(clusterName string) (dialer.Dialer, error) {
return func(network, address string) (net.Conn, error) {
d, err := f.clusterDialer(clusterName)
if err != nil {
return nil, err
}
return d(network, address)
}, nil
}
func (f *Factory) clusterDialer(clusterName string) (dialer.Dialer, error) {
cluster, err := f.clusterLister.Get("", clusterName)
if err != nil {
return nil, err
}
if f.TunnelServer.HasSession(cluster.Name) {
return f.TunnelServer.Dialer(cluster.Name, 15*time.Second), nil
}
nodes, err := f.nodeLister.List(cluster.Name, labels.Everything())
if err != nil {
return nil, err
}
for _, node := range nodes {
if node.DeletionTimestamp == nil && v3.NodeConditionProvisioned.IsTrue(node) {
if nodeDialer, err := f.nodeDialer(clusterName, node.Name); err == nil {
return nodeDialer, err
}
}
}
if cluster.Status.Driver == v3.ClusterDriverImported && !cluster.Spec.Internal {
return nil, fmt.Errorf("waiting for cluster agent to connect")
}
return func(network, address string) (net.Conn, error) {
return net.DialTimeout(network, address, 30*time.Second)
}, nil
}
func (f *Factory) DockerDialer(clusterName, machineName string) (dialer.Dialer, error) {
machine, err := f.nodeLister.Get(clusterName, machineName)
if err != nil {
return nil, err
}
if f.TunnelServer.HasSession(machine.Name) {
d := f.TunnelServer.Dialer(machine.Name, 15*time.Second)
return func(string, string) (net.Conn, error) {
return d("unix", "/var/run/docker.sock")
}, nil
}
if machine.Spec.CustomConfig != nil && machine.Spec.CustomConfig.Address != "" && machine.Spec.CustomConfig.SSHKey != "" {
return f.sshDialer(machine)
}
if machine.Spec.NodeTemplateName != "" {
return f.tlsDialer(machine)
}
return nil, fmt.Errorf("can not build dialer to %s:%s", clusterName, machineName)
}
func (f *Factory) NodeDialer(clusterName, machineName string) (dialer.Dialer, error) {
return func(network, address string) (net.Conn, error) {
d, err := f.nodeDialer(clusterName, machineName)
if err != nil {
return nil, err
}
return d(network, address)
}, nil
}
func (f *Factory) nodeDialer(clusterName, machineName string) (dialer.Dialer, error) {
machine, err := f.nodeLister.Get(clusterName, machineName)
if err != nil {
return nil, err
}
if f.TunnelServer.HasSession(machine.Name) {
d := f.TunnelServer.Dialer(machine.Name, 15*time.Second)
return dialer.Dialer(d), nil
}
if machine.Spec.CustomConfig != nil && machine.Spec.CustomConfig.Address != "" && machine.Spec.CustomConfig.SSHKey != "" {
return f.sshLocalDialer(machine)
}
if machine.Spec.NodeTemplateName != "" {
return f.sshLocalDialer(machine)
}
return nil, fmt.Errorf("can not build dialer to %s:%s", clusterName, machineName)
}