feat: enable support for capmox

This makes ccm compatible with cluster api and cluster api provider proxmox (capmox)

Signed-off-by: Matthias Teich <matthias.teich@gdata.de>

Author: Mattes83

charts/proxmox-cloud-controller-manager/Chart.yaml

@@ -16,7 +16,7 @@ maintainers:
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.9
+version: 0.2.10
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.

charts/proxmox-cloud-controller-manager/values.yaml

@@ -40,6 +40,9 @@ existingConfigSecretKey: config.yaml
 
 # -- Proxmox cluster config.
 config:
+  features:
+    # specify provider: proxmox if you are using capmox (cluster api provider for proxmox)
+    provider: 'default'
   clusters: []
   #   - url: https://cluster-api-1.exmple.com:8006/api2/json
   #     insecure: false

pkg/cluster/cloud_config.go

@@ -26,8 +26,20 @@ import (
 	yaml "gopkg.in/yaml.v3"
 )
 
+// Provider specifies the provider. Can be 'default' or 'capmox'
+type Provider string
+
+// ProviderDefault is the default provider
+const ProviderDefault Provider = "default"
+
+// ProviderCapmox is the Provider for capmox
+const ProviderCapmox Provider = "capmox"
+
 // ClustersConfig is proxmox multi-cluster cloud config.
 type ClustersConfig struct {
+	Features struct {
+		Provider Provider `yaml:"provider,omitempty"`
+	} `yaml:"features,omitempty"`
 	Clusters []struct {
 		URL         string `yaml:"url"`
 		Insecure    bool   `yaml:"insecure,omitempty"`
@@ -67,6 +79,10 @@ func ReadCloudConfig(config io.Reader) (ClustersConfig, error) {
 		}
 	}
 
+	if cfg.Features.Provider == "" {
+		cfg.Features.Provider = ProviderDefault
+	}
+
 	return cfg, nil
 }
 

pkg/cluster/cloud_config_test.go

@@ -69,7 +69,7 @@ clusters:
 	assert.NotNil(t, cfg)
 	assert.Equal(t, 1, len(cfg.Clusters))
 
-	// Valid config with one cluster (username/password)
+	// Valid config with one cluster (username/password), implicit default provider
 	cfg, err = cluster.ReadCloudConfig(strings.NewReader(`
 clusters:
   - url: https://example.com
@@ -81,6 +81,39 @@ clusters:
 	assert.Nil(t, err)
 	assert.NotNil(t, cfg)
 	assert.Equal(t, 1, len(cfg.Clusters))
+	assert.Equal(t, cluster.ProviderDefault, cfg.Features.Provider)
+
+	// Valid config with one cluster (username/password), explicit provider default
+	cfg, err = cluster.ReadCloudConfig(strings.NewReader(`
+features:
+  provider: 'default'
+clusters:
+  - url: https://example.com
+    insecure: false
+    username: "user@pam"
+    password: "secret"
+    region: cluster-1
+`))
+	assert.Nil(t, err)
+	assert.NotNil(t, cfg)
+	assert.Equal(t, 1, len(cfg.Clusters))
+	assert.Equal(t, cluster.ProviderDefault, cfg.Features.Provider)
+
+	// Valid config with one cluster (username/password), explicit provider capmox
+	cfg, err = cluster.ReadCloudConfig(strings.NewReader(`
+features:
+  provider: 'capmox'
+clusters:
+  - url: https://example.com
+    insecure: false
+    username: "user@pam"
+    password: "secret"
+    region: cluster-1
+`))
+	assert.Nil(t, err)
+	assert.NotNil(t, cfg)
+	assert.Equal(t, 1, len(cfg.Clusters))
+	assert.Equal(t, cluster.ProviderCapmox, cfg.Features.Provider)
 }
 
 func TestReadCloudConfigFromFile(t *testing.T) {

pkg/provider/provider.go

@@ -38,6 +38,11 @@ func GetProviderID(region string, vmr *pxapi.VmRef) string {
 	return fmt.Sprintf("%s://%s/%d", ProviderName, region, vmr.VmId())
 }
 
+// GetProviderIDFromUUID returns the magic providerID for kubernetes node.
+func GetProviderIDFromUUID(uuid string) string {
+	return fmt.Sprintf("%s://%s", ProviderName, uuid)
+}
+
 // GetVMID returns the VM ID from the providerID.
 func GetVMID(providerID string) (int, error) {
 	if !strings.HasPrefix(providerID, ProviderName) {

pkg/proxmox/cloud.go

@@ -65,7 +65,7 @@ func newCloud(config *cluster.ClustersConfig) (cloudprovider.Interface, error) {
 		return nil, err
 	}
 
-	instancesInterface := newInstances(client)
+	instancesInterface := newInstances(client, config.Features.Provider)
 
 	return &cloud{
 		client:      client,

pkg/proxmox/instances.go

@@ -34,12 +34,14 @@ import (
 )
 
 type instances struct {
-	c *cluster.Cluster
+	c        *cluster.Cluster
+	provider cluster.Provider
 }
 
-func newInstances(client *cluster.Cluster) *instances {
+func newInstances(client *cluster.Cluster, provider cluster.Provider) *instances {
 	return &instances{
-		c: client,
+		c:        client,
+		provider: provider,
 	}
 }
 
@@ -149,6 +151,12 @@ func (i *instances) InstanceMetadata(_ context.Context, node *v1.Node) (*cloudpr
 					return nil, fmt.Errorf("instances.InstanceMetadata() - failed to find instance by name/uuid %s: %v, skipped", node.Name, err)
 				}
 			}
+
+			if i.provider == cluster.ProviderCapmox {
+				providerID = provider.GetProviderIDFromUUID(uuid)
+			} else {
+				providerID = provider.GetProviderID(region, vmRef)
+			}
 		} else if !strings.HasPrefix(node.Spec.ProviderID, provider.ProviderName) {
 			klog.V(4).InfoS("instances.InstanceMetadata() omitting unmanaged node", "node", klog.KObj(node), "providerID", node.Spec.ProviderID)
 
@@ -178,7 +186,7 @@ func (i *instances) InstanceMetadata(_ context.Context, node *v1.Node) (*cloudpr
 		}
 
 		return &cloudprovider.InstanceMetadata{
-			ProviderID:    provider.GetProviderID(region, vmRef),
+			ProviderID:    providerID,
 			NodeAddresses: addresses,
 			InstanceType:  instanceType,
 			Zone:          vmRef.Node(),
@@ -192,6 +200,17 @@ func (i *instances) InstanceMetadata(_ context.Context, node *v1.Node) (*cloudpr
 }
 
 func (i *instances) getInstance(node *v1.Node) (*pxapi.VmRef, string, error) {
+	if i.provider == cluster.ProviderCapmox {
+		uuid := node.Status.NodeInfo.SystemUUID
+
+		vmRef, region, err := i.c.FindVMByUUID(uuid)
+		if err != nil {
+			return nil, "", fmt.Errorf("instances.getInstance() error: %v", err)
+		}
+
+		return vmRef, region, nil
+	}
+
 	vm, region, err := provider.ParseProviderID(node.Spec.ProviderID)
 	if err != nil {
 		return nil, "", fmt.Errorf("instances.getInstance() error: %v", err)

pkg/proxmox/instances_test.go

@@ -28,8 +28,8 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 
-	"github.com/sergelogvinov/proxmox-cloud-controller-manager/pkg/cluster"
-	provider "github.com/sergelogvinov/proxmox-cloud-controller-manager/pkg/provider"
+	proxmoxcluster "github.com/sergelogvinov/proxmox-cloud-controller-manager/pkg/cluster"
+	"github.com/sergelogvinov/proxmox-cloud-controller-manager/pkg/provider"
 
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -44,7 +44,7 @@ type ccmTestSuite struct {
 }
 
 func (ts *ccmTestSuite) SetupTest() {
-	cfg, err := cluster.ReadCloudConfig(strings.NewReader(`
+	cfg, err := proxmoxcluster.ReadCloudConfig(strings.NewReader(`
 clusters:
 - url: https://127.0.0.1:8006/api2/json
   insecure: false
@@ -123,12 +123,12 @@ clusters:
 		},
 	)
 
-	cluster, err := cluster.NewCluster(&cfg, &http.Client{})
+	cluster, err := proxmoxcluster.NewCluster(&cfg, &http.Client{})
 	if err != nil {
 		ts.T().Fatalf("failed to create cluster client: %v", err)
 	}
 
-	ts.i = newInstances(cluster)
+	ts.i = newInstances(cluster, proxmoxcluster.ProviderDefault)
 }
 
 func (ts *ccmTestSuite) TearDownTest() {