add ignore_docker_version

cluster.yml

@@ -20,6 +20,7 @@ network:
     flannel_cni_image: quay.io/coreos/flannel-cni:v0.2.0
 
 ssh_key_path: ~/.ssh/test
+ignore_docker_version: false
 
 nodes:
   - address: 1.1.1.1

cluster/hosts.go

@@ -40,6 +40,9 @@ func (c *Cluster) InvertIndexHosts() error {
 		if err := newHost.RegisterDialer(c.Dialer); err != nil {
 			return fmt.Errorf("Failed to register new Dialer for host [%s]: %v", host.Address, err)
 		}
+
+		newHost.IgnoreDockerVersion = c.IgnoreDockerVersion
+
 		for _, role := range host.Role {
 			logrus.Debugf("Host: " + host.Address + " has role: " + role)
 			switch role {

cmd/config.go

@@ -273,8 +273,8 @@ func getServiceConfig(reader *bufio.Reader) (*v3.RKEConfigServices, error) {
 	return &servicesConfig, nil
 }
 
-func getAuthConfig(reader *bufio.Reader) (*v3.AuthConfig, error) {
-	authConfig := v3.AuthConfig{}
+func getAuthConfig(reader *bufio.Reader) (*v3.AuthnConfig, error) {
+	authConfig := v3.AuthnConfig{}
 
 	authType, err := getConfig(reader, "Authentication Strategy", "x509")
 	if err != nil {

hosts/hosts.go

@@ -15,10 +15,11 @@ import (
 
 type Host struct {
 	v3.RKEConfigNode
-	DClient   *client.Client
-	Dialer    Dialer
-	IsControl bool
-	IsWorker  bool
+	DClient             *client.Client
+	Dialer              Dialer
+	IsControl           bool
+	IsWorker            bool
+	IgnoreDockerVersion bool
 }
 
 const (

hosts/tunnel.go

@@ -46,8 +46,10 @@ func (h *Host) TunnelUp() error {
 		return fmt.Errorf("Error while determining supported Docker version [%s]: %v", info.ServerVersion, err)
 	}
 
-	if !isvalid {
+	if !isvalid && !h.IgnoreDockerVersion {
 		return fmt.Errorf("Unsupported Docker version found [%s], supported versions are %v", info.ServerVersion, docker.K8sDockerVersions[K8sVersion])
+	} else if !isvalid {
+		logrus.Warnf("Unsupported Docker version found [%s], supported versions are %v", info.ServerVersion, docker.K8sDockerVersions[K8sVersion])
 	}
 
 	return nil