Add support for OpenNebula as a cloud provider

.gitignore

@@ -16,3 +16,4 @@ examples/*.srl
 .vscode
 .gitpod.yml
 cmd/machine-controller/__debug_bin
+!pkg

docs/cloud-provider.md

@@ -146,6 +146,44 @@ tags:
   tagKey: tagValue
 ```
 
+## OpenNebula
+
+### machine.spec.providerConfig.cloudProviderSpec
+
+```yaml
+# XML-RPC endpoint of your OpenNebula installation
+endpoint: ""
+# your OpenNebula username
+username: ""
+# your OpenNebula password
+password: ""
+
+# cpu (float64)
+cpu: 1
+# vcpu
+vcpu: 2
+# memory in MB
+memory: 1024
+
+# the name of the image to use, needs to be owned by the current user
+image: "Amazon Linux 2"
+# which datastore to use for the image
+datastore: ""
+# size of the disk in MB
+diskSize: 51200
+
+# network name, needs to be owned by the current user
+network: ""
+
+# whether to enable the VNC console
+enableVNC: true
+
+# optional key/value pairs to add to the VM template
+vmTemplateExtra:
+  # useful for e.g. setting the placement attributes as defined in https://docs.opennebula.io/6.4/management_and_operations/references/template.html#template-placement-section
+  SCHED_REQUIREMENTS: 'RACK="G4"'
+```
+
 ## Google Cloud Platform
 
 ### machine.spec.providerConfig.cloudProviderSpec

examples/opennebula-machinedeployment.yaml

@@ -0,0 +1,70 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  # If you change the namespace/name, you must also
+  # adjust the rbac rules
+  name: machine-controller-opennebula
+  namespace: kube-system
+type: Opaque
+stringData:
+  password: << ONE_PASSWORD >>
+---
+apiVersion: "cluster.k8s.io/v1alpha1"
+kind: MachineDeployment
+metadata:
+  name: opennebula-machinedeployment
+  namespace: kube-system
+spec:
+  paused: false
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  minReadySeconds: 0
+  selector:
+    matchLabels:
+      foo: bar
+  template:
+    metadata:
+      labels:
+        foo: bar
+    spec:
+      providerSpec:
+        value:
+          sshPublicKeys:
+            - "<< YOUR_PUBLIC_KEY >>"
+          cloudProvider: "opennebula"
+          cloudProviderSpec:
+            endpoint: "<< ONE_ENDPOINT including '/RPC2' >>"
+            username: "<< ONE_USERNAME >>"
+            # If empty, can be set via ONE_PASSWORD env var
+            password:
+              secretKeyRef:
+                namespace: kube-system
+                name: machine-controller-opennebula
+                key: password
+            cpu: 1
+            vcpu: 2
+            memory: 1024
+
+            image: "flatcar-stable"
+            datastore: "<< YOUR_DATASTORE_NAME >>"
+            diskSize: 51200 # MB
+
+            network: "<< YOUR_NETWORK_NAME >>"
+
+            enableVNC: true
+
+            # if you want to have more control over e.g. placement of the VM you can do this:
+            #vmTemplateExtra:
+            #  SCHED_REQUIREMENTS: 'RACK="G4"'
+          operatingSystem: "flatcar"
+          operatingSystemSpec:
+            distUpgradeOnBoot: false
+
+            # use cloud-init for flatcar as ignition doesn't know anything about OpenNebula yet
+            provisioningUtility: "cloud-init"
+      versions:
+        kubelet: 1.24.9

go.mod

@@ -11,6 +11,7 @@ require (
 	github.com/BurntSushi/toml v1.2.1
 	github.com/Masterminds/semver/v3 v3.2.0
 	github.com/Masterminds/sprig/v3 v3.2.3
+	github.com/OpenNebula/one/src/oca/go/src/goca v0.0.0-20220908162715-b27302cc7db5
 	github.com/aliyun/alibaba-cloud-sdk-go v1.62.112
 	github.com/aws/aws-sdk-go-v2 v1.17.3
 	github.com/aws/aws-sdk-go-v2/config v1.18.7
@@ -129,6 +130,7 @@ require (
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/kolo/xmlrpc v0.0.0-20190717152603-07c4ee3fd181 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect

go.sum

@@ -86,6 +86,8 @@ github.com/Masterminds/sprig/v3 v3.2.3 h1:eL2fZNezLomi0uOLqjQoN6BfsDD+fyLtgbJMAj
 github.com/Masterminds/sprig/v3 v3.2.3/go.mod h1:rXcFaZ2zZbLRJv/xSysmlgIM1u11eBaRMhvYXJNkGuM=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/OpenNebula/one/src/oca/go/src/goca v0.0.0-20220908162715-b27302cc7db5 h1:3SAiuS+PAdJHhDlTdnqseo9mZAcolUgDRS1PYEDUaFY=
+github.com/OpenNebula/one/src/oca/go/src/goca v0.0.0-20220908162715-b27302cc7db5/go.mod h1:dvAwZi1Aol7eu6BENzHtl8ztGBkacB9t/fJj+fYk+Xg=
 github.com/PaesslerAG/gval v1.0.0/go.mod h1:y/nm5yEyTeX6av0OfKJNp9rBNj2XrGhAf5+v24IBN1I=
 github.com/PaesslerAG/gval v1.2.1 h1:Ggwtej1xCyt1994VuDCSjycybIDo3duDCDghK/xc/A0=
 github.com/PaesslerAG/gval v1.2.1/go.mod h1:XRFLwvmkTEdYziLdaCeCa5ImcGVrfQbeNUbVR+C6xac=
@@ -396,6 +398,7 @@ github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:Fecb
 github.com/grpc-ecosystem/go-grpc-middleware v1.3.0/go.mod h1:z0ButlSOZa5vEBq9m2m2hlwIgKw+rp3sdCBRoJY+30Y=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
+github.com/hashicorp/go-cleanhttp v0.5.1/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
 github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
 github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
 github.com/hashicorp/go-hclog v0.9.2 h1:CG6TE5H9/JXsFWJCfoIVpKFIkFe6ysEuHirp4DxCsHI=
@@ -454,6 +457,8 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/compress v1.15.0/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/compress v1.15.1/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
+github.com/kolo/xmlrpc v0.0.0-20190717152603-07c4ee3fd181 h1:TrxPzApUukas24OMMVDUMlCs1XCExJtnGaDEiIAR4oQ=
+github.com/kolo/xmlrpc v0.0.0-20190717152603-07c4ee3fd181/go.mod h1:o03bZfuBwAXHetKXuInt4S7omeXUu62/A845kiycsSQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=

pkg/cloudprovider/provider.go

@@ -33,6 +33,7 @@ import (
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/kubevirt"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/linode"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/nutanix"
+	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/opennebula"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/openstack"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/scaleway"
 	vcd "github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/vmwareclouddirector"
@@ -112,6 +113,9 @@ var (
 		providerconfigtypes.CloudProviderVMwareCloudDirector: func(cvr *providerconfig.ConfigVarResolver) cloudprovidertypes.Provider {
 			return vcd.New(cvr)
 		},
+		providerconfigtypes.CloudProviderOpenNebula: func(cvr *providerconfig.ConfigVarResolver) cloudprovidertypes.Provider {
+			return opennebula.New(cvr)
+		},
 	}
 )