Adds a machine driver for Linode (#451)

* add vendor updates for linode

* Add Linode machine driver

* include userdata in linode creation, via stackscript

* fix linode status checking and simplify creation waiting

* include Kubermatic in the linode api call user-agent

* fix linter errors for linode provider

* linode ssh keys need trimming, root_pass must be provided

* exclude centos from Linode tests

* truncate linode labels to 32 chars on creation and lookup

* fix linode provider Get which was ignoring the 32 character limit

* remove unused fields from Linode config

* order linode fields in fixtures alphabetically to match expectations

Author: displague

Gopkg.lock

@@ -68,6 +68,10 @@ required = [
   name = "github.com/digitalocean/godo"
   version = "v1.1.*"
 
+[[constraint]]
+  name = "github.com/linode/linodego"
+  version = "v0.7.*"
+
 [[constraint]]
   name = "k8s.io/apiextensions-apiserver"
   branch = "release-1.11"

Gopkg.toml

@@ -104,3 +104,23 @@ network: ""
   datacenter: ""
   location: "fsn1"
 ```
+
+## Linode
+
+### machine.spec.providerConfig.cloudProviderSpec
+```yaml
+# your linode token
+token: "<< YOUR_LINODE_TOKEN >>"
+# droplet region
+region: "eu-west"
+# droplet size
+type: "g6-standard-2"
+# enable backups for the linode
+backups: false
+# enable private networking for the linode
+private_networking: true
+# add the following tags to the linode
+tags:
+- "machine-controller"
+```
+

docs/cloud-provider.md

@@ -10,6 +10,7 @@
 | Openstack | ✓ | ✓  |
 | Digitalocean  | ✓ | ✓ |
 | Hetzner | ✓ | x |
+| Linode | ✓ | x |
 
 ## Configuring a operating system
 

docs/operating-system.md

@@ -0,0 +1,56 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  # If you change the namespace/name, you must also
+  # adjust the rbac rules
+  name: machine-controller-linode
+  namespace: kube-system
+type: Opaque
+stringData:
+  token: << LINODE_TOKEN >>
+---
+apiVersion: "cluster.k8s.io/v1alpha1"
+kind: MachineDeployment
+metadata:
+  name: linode-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: "linode"
+          cloudProviderSpec:
+          # If empty, can be set via LINODE_TOKEN env var
+            token:
+              secretKeyRef:
+                namespace: kube-system
+                name: machine-controller-linode
+                key: token
+            region: eu-west
+            type: g6-standard-2
+            backups: false
+            private_networking: true
+            tags:
+              - "machine-controller"
+          operatingSystem: "ubuntu"
+          operatingSystemSpec:
+            disableAutoUpdate: true
+      versions:
+        kubelet: 1.9.6

examples/linode-machinedeployment.yaml

@@ -284,6 +284,7 @@ rules:
   resourceNames:
   - machine-controller-ssh-key
   - machine-controller-hetzner
+  - machine-controller-linode
   - machine-controller-digitalocean
   - machine-controller-openstack
   - machine-controller-aws

examples/machine-controller.yaml

@@ -0,0 +1,26 @@
+apiVersion: "machine.k8s.io/v1alpha1"
+kind: Machine
+metadata:
+  name: linode
+spec:
+  metadata:
+    name: node1
+  providerConfig:
+    sshPublicKeys:
+      - "<< YOUR_PUBLIC_KEY >>"
+    cloudProvider: "linode"
+    cloudProviderSpec:
+      backups: false
+      private_networking: true
+      region: eu-west
+      tags:
+        - "machine-controller"
+      token: "token"
+      type: g6-standard-2
+    operatingSystem: "ubuntu"
+    operatingSystemSpec:
+      disableAutoUpdate: true
+  roles:
+  - "Node"
+  versions:
+    kubelet: "v1.9.6"

pkg/apis/cluster/v1alpha1/conversions/testdata/machinesv1alpha1machine/linode.yaml

@@ -0,0 +1,29 @@
+metadata:
+  annotations:
+    machine-controller/machine-type-revision: 45f1c93260140936c610e56575d7505ba3d52444
+  creationTimestamp: null
+  name: linode
+  namespace: kube-system
+spec:
+  metadata:
+    creationTimestamp: null
+    name: node1
+  providerSpec:
+    value:
+      cloudProvider: linode
+      cloudProviderSpec:
+        backups: false
+        private_networking: true
+        region: eu-west
+        tags:
+        - machine-controller
+        token: token
+        type: g6-standard-2
+      operatingSystem: ubuntu
+      operatingSystemSpec:
+        disableAutoUpdate: true
+      sshPublicKeys:
+      - << YOUR_PUBLIC_KEY >>
+  versions:
+    kubelet: v1.9.6
+status: {}

pkg/apis/cluster/v1alpha1/conversions/testdata/migrated_clusterv1alpha1machine/linode.yaml

@@ -11,6 +11,7 @@ import (
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/fake"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/hetzner"
 	"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/openstack"
 	"github.com/kubermatic/machine-controller/pkg/cloudprovider/provider/vsphere"
 	"github.com/kubermatic/machine-controller/pkg/providerconfig"
@@ -35,6 +36,9 @@ var (
 		providerconfig.CloudProviderHetzner: func(cvr *providerconfig.ConfigVarResolver) cloud.Provider {
 			return hetzner.New(cvr)
 		},
+		providerconfig.CloudProviderLinode: func(cvr *providerconfig.ConfigVarResolver) cloud.Provider {
+			return linode.New(cvr)
+		},
 		providerconfig.CloudProviderVsphere: func(cvr *providerconfig.ConfigVarResolver) cloud.Provider {
 			return vsphere.New(cvr)
 		},