Hetzner public IPv4 and IPv6 configuration

cluster-autoscaler/cloudprovider/hetzner/README.md

@@ -16,6 +16,10 @@ The cluster autoscaler for Hetzner Cloud scales worker nodes.
 
 `HCLOUD_SSH_KEY` Default empty , This SSH Key will have access to the fresh created server, @see https://docs.hetzner.cloud/#ssh-keys
 
+`HCLOUD_PUBLIC_IPV4` Default true , Whether the server is created with a public IPv4 address or not, @see https://docs.hetzner.cloud/#primary-ips
+
+`HCLOUD_PUBLIC_IPV6` Default true , Whether the server is created with a public IPv6 address or not, @see https://docs.hetzner.cloud/#primary-ips
+
 Node groups must be defined with the `--nodes=<min-servers>:<max-servers>:<instance-type>:<region>:<name>` flag.
 
 Multiple flags will create multiple node pools. For example:

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/certificate.go

@@ -154,13 +154,17 @@ func (c *CertificateClient) Get(ctx context.Context, idOrName string) (*Certific
 type CertificateListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l CertificateListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/client.go

@@ -20,6 +20,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -31,10 +32,9 @@ import (
 	"strings"
 	"time"
 
-	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/internal/instrumentation"
-
 	"github.com/prometheus/client_golang/prometheus"
-
+	"golang.org/x/net/http/httpguts"
+	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/internal/instrumentation"
 	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/schema"
 )
 
@@ -70,6 +70,7 @@ func ExponentialBackoff(b float64, d time.Duration) BackoffFunc {
 type Client struct {
 	endpoint                string
 	token                   string
+	tokenValid              bool
 	pollInterval            time.Duration
 	backoffFunc             BackoffFunc
 	httpClient              *http.Client
@@ -97,6 +98,7 @@ type Client struct {
 	Volume           VolumeClient
 	PlacementGroup   PlacementGroupClient
 	RDNS             RDNSClient
+	PrimaryIP        PrimaryIPClient
 }
 
 // A ClientOption is used to configure a Client.
@@ -113,6 +115,7 @@ func WithEndpoint(endpoint string) ClientOption {
 func WithToken(token string) ClientOption {
 	return func(client *Client) {
 		client.token = token
+		client.tokenValid = httpguts.ValidHeaderFieldValue(token)
 	}
 }
 
@@ -167,6 +170,7 @@ func WithInstrumentation(registry *prometheus.Registry) ClientOption {
 func NewClient(options ...ClientOption) *Client {
 	client := &Client{
 		endpoint:     Endpoint,
+		tokenValid:   true,
 		httpClient:   &http.Client{},
 		backoffFunc:  ExponentialBackoff(2, 500*time.Millisecond),
 		pollInterval: 500 * time.Millisecond,
@@ -200,6 +204,7 @@ func NewClient(options ...ClientOption) *Client {
 	client.Firewall = FirewallClient{client: client}
 	client.PlacementGroup = PlacementGroupClient{client: client}
 	client.RDNS = RDNSClient{client: client}
+	client.PrimaryIP = PrimaryIPClient{client: client}
 
 	return client
 }
@@ -213,9 +218,13 @@ func (c *Client) NewRequest(ctx context.Context, method, path string, body io.Re
 		return nil, err
 	}
 	req.Header.Set("User-Agent", c.userAgent)
-	if c.token != "" {
+
+	if !c.tokenValid {
+		return nil, errors.New("Authorization token contains invalid characters")
+	} else if c.token != "" {
 		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.token))
 	}
+
 	if body != nil {
 		req.Header.Set("Content-Type", "application/json")
 	}

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/datacenter.go

@@ -88,13 +88,17 @@ func (c *DatacenterClient) Get(ctx context.Context, idOrName string) (*Datacente
 type DatacenterListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l DatacenterListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/error.go

@@ -41,7 +41,8 @@ const (
 	ErrorCodeMaintenance           ErrorCode = "maintenance"             // Cannot perform operation due to maintenance
 	ErrorCodeConflict              ErrorCode = "conflict"                // The resource has changed during the request, please retry
 	ErrorCodeRobotUnavailable      ErrorCode = "robot_unavailable"       // Robot was not available. The caller may retry the operation after a short delay
-	ErrorUnsupportedError          ErrorCode = "unsupported_error"       // The gives resource does not support this
+	ErrorCodeResourceLocked        ErrorCode = "resource_locked"         // The resource is locked. The caller should contact support
+	ErrorUnsupportedError          ErrorCode = "unsupported_error"       // The given resource does not support this
 
 	// Server related error codes
 	ErrorCodeInvalidServerType     ErrorCode = "invalid_server_type"     // The server type does not fit for the given server or is deprecated

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/firewall.go

@@ -152,13 +152,17 @@ func (c *FirewallClient) Get(ctx context.Context, idOrName string) (*Firewall, *
 type FirewallListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l FirewallListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/floating_ip.go

@@ -153,13 +153,17 @@ func (c *FloatingIPClient) Get(ctx context.Context, idOrName string) (*FloatingI
 type FloatingIPListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l FloatingIPListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/hcloud.go

@@ -18,4 +18,4 @@ limitations under the License.
 package hcloud
 
 // Version is the library's version following Semantic Versioning.
-const Version = "1.32.0"
+const Version = "1.35.0"

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/iso.go

@@ -98,13 +98,17 @@ func (c *ISOClient) Get(ctx context.Context, idOrName string) (*ISO, *Response,
 type ISOListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l ISOListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/labels.go

@@ -0,0 +1,23 @@
+package hcloud
+
+import (
+	"fmt"
+	"regexp"
+)
+
+var keyRegexp = regexp.MustCompile(
+	`^([a-z0-9A-Z]((?:[\-_.]|[a-z0-9A-Z]){0,253}[a-z0-9A-Z])?/)?[a-z0-9A-Z]((?:[\-_.]|[a-z0-9A-Z]|){0,62}[a-z0-9A-Z])?$`)
+var valueRegexp = regexp.MustCompile(`^([a-z0-9A-Z](?:[\-_.]|[a-z0-9A-Z]){0,62})?[a-z0-9A-Z]$`)
+
+func ValidateResourceLabels(labels map[string]interface{}) (bool, error) {
+	for k, v := range labels {
+		if match := keyRegexp.MatchString(k); !match {
+			return false, fmt.Errorf("label key '%s' is not correctly formatted", k)
+		}
+
+		if match := valueRegexp.MatchString(v.(string)); !match {
+			return false, fmt.Errorf("label value '%s' (key: %s) is not correctly formatted", v, k)
+		}
+	}
+	return true, nil
+}

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/load_balancer.go

@@ -299,13 +299,17 @@ func (c *LoadBalancerClient) Get(ctx context.Context, idOrName string) (*LoadBal
 type LoadBalancerListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l LoadBalancerListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/load_balancer_type.go

@@ -85,13 +85,17 @@ func (c *LoadBalancerTypeClient) Get(ctx context.Context, idOrName string) (*Loa
 type LoadBalancerTypeListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l LoadBalancerTypeListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/location.go

@@ -85,13 +85,17 @@ func (c *LocationClient) Get(ctx context.Context, idOrName string) (*Location, *
 type LocationListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l LocationListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/metadata/client.go

@@ -17,6 +17,7 @@ limitations under the License.
 package metadata
 
 import (
+	"fmt"
 	"io/ioutil"
 	"net"
 	"net/http"
@@ -88,12 +89,16 @@ func (c *Client) get(path string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	body, err := ioutil.ReadAll(resp.Body)
+	defer resp.Body.Close()
+	bodyBytes, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return "", err
 	}
-	resp.Body.Close()
-	return string(body), nil
+	body := string(bodyBytes)
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return body, fmt.Errorf("response status was %d", resp.StatusCode)
+	}
+	return body, nil
 }
 
 // IsHcloudServer checks if the currently called server is a hcloud server by calling a metadata endpoint

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/network.go

@@ -130,13 +130,17 @@ func (c *NetworkClient) Get(ctx context.Context, idOrName string) (*Network, *Re
 type NetworkListOpts struct {
 	ListOpts
 	Name string
+	Sort []string
 }
 
 func (l NetworkListOpts) values() url.Values {
 	vals := l.ListOpts.values()
 	if l.Name != "" {
 		vals.Add("name", l.Name)
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/placement_group.go

@@ -96,6 +96,7 @@ type PlacementGroupListOpts struct {
 	ListOpts
 	Name string
 	Type PlacementGroupType
+	Sort []string
 }
 
 func (l PlacementGroupListOpts) values() url.Values {
@@ -106,6 +107,9 @@ func (l PlacementGroupListOpts) values() url.Values {
 	if l.Type != "" {
 		vals.Add("type", string(l.Type))
 	}
+	for _, sort := range l.Sort {
+		vals.Add("sort", sort)
+	}
 	return vals
 }
 

cluster-autoscaler/cloudprovider/hetzner/hcloud-go/hcloud/pricing.go

@@ -27,6 +27,7 @@ type Pricing struct {
 	Image             ImagePricing
 	FloatingIP        FloatingIPPricing
 	FloatingIPs       []FloatingIPTypePricing
+	PrimaryIPs        []PrimaryIPPricing
 	Traffic           TrafficPricing
 	ServerBackup      ServerBackupPricing
 	ServerTypes       []ServerTypePricing
@@ -44,6 +45,14 @@ type Price struct {
 	Gross    string
 }
 
+// PrimaryIPPrice represents a price. Net amount and gross amount are
+// specified as strings and it is the user's responsibility to convert them to
+// appropriate types for calculations.
+type PrimaryIPPrice struct {
+	Net   string
+	Gross string
+}
+
 // ImagePricing provides pricing information for imaegs.
 type ImagePricing struct {
 	PerGBMonth Price
@@ -60,6 +69,20 @@ type FloatingIPTypePricing struct {
 	Pricings []FloatingIPTypeLocationPricing
 }
 
+// PrimaryIPTypePricing defines the schema of pricing information for a primary IP
+// type at a datacenter.
+type PrimaryIPTypePricing struct {
+	Datacenter string
+	Hourly     PrimaryIPPrice
+	Monthly    PrimaryIPPrice
+}
+
+// PrimaryIPTypePricing provides pricing information for PrimaryIPs
+type PrimaryIPPricing struct {
+	Type     string
+	Pricings []PrimaryIPTypePricing
+}
+
 // FloatingIPTypeLocationPricing provides pricing information for a Floating IP type
 // at a location.
 type FloatingIPTypeLocationPricing struct {