Changing the cluster to be namespaced

Changes the cluster type to be namespaced (and changes the various
controllers to work with this new feature). Also adds crd generation and
docs to the core cluster type.

Dockerfile.dapper

@@ -6,16 +6,20 @@ ENV ARCH $DAPPER_HOST_ARCH
 
 RUN apk -U add \bash git gcc musl-dev docker vim less file curl wget ca-certificates
 RUN if [ "${ARCH}" == "amd64" ]; then \
-        curl -sL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s v1.15.0; \
+        curl -sL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.59.0; \
     fi
 
 RUN curl -sL https://github.com/helm/chart-releaser/releases/download/v1.5.0/chart-releaser_1.5.0_linux_${ARCH}.tar.gz | tar -xz cr \
     && mv cr /bin/
 
+# Tool for CRD generation.
+ENV CONTROLLER_GEN_VERSION v0.14.0
+RUN go install sigs.k8s.io/controller-tools/cmd/controller-gen@${CONTROLLER_GEN_VERSION}
+
 ENV GO111MODULE on
 ENV DAPPER_ENV REPO TAG DRONE_TAG CROSS GITHUB_TOKEN
 ENV DAPPER_SOURCE /go/src/github.com/rancher/k3k/
-ENV DAPPER_OUTPUT ./bin ./dist ./deploy
+ENV DAPPER_OUTPUT ./bin ./dist ./deploy ./charts
 ENV DAPPER_DOCKER_SOCKET true
 ENV HOME ${DAPPER_SOURCE}
 WORKDIR ${DAPPER_SOURCE}

charts/k3k/crds/k3k.io_clusters.yaml

@@ -0,0 +1,206 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.14.0
+  name: clusters.k3k.io
+spec:
+  group: k3k.io
+  names:
+    kind: Cluster
+    listKind: ClusterList
+    plural: clusters
+    singular: cluster
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        properties:
+          apiVersion:
+            description: |-
+              APIVersion defines the versioned schema of this representation of an object.
+              Servers should convert recognized schemas to the latest internal value, and
+              may reject unrecognized values.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
+            type: string
+          kind:
+            description: |-
+              Kind is a string value representing the REST resource this object represents.
+              Servers may infer this from the endpoint the client submits requests to.
+              Cannot be updated.
+              In CamelCase.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
+            type: string
+          metadata:
+            type: object
+          spec:
+            properties:
+              addons:
+                description: Addons is a list of secrets containing raw YAML which
+                  will be deployed in the virtual K3k cluster on startup.
+                items:
+                  properties:
+                    secretNamespace:
+                      type: string
+                    secretRef:
+                      type: string
+                  type: object
+                type: array
+              agentArgs:
+                description: AgentArgs are the ordered key value pairs (e.x. "testArg",
+                  "testValue") for the K3s pods running in agent mode.
+                items:
+                  type: string
+                type: array
+              agents:
+                description: Agents is the number of K3s pods to run in agent (worker)
+                  mode.
+                format: int32
+                type: integer
+                x-kubernetes-validations:
+                - message: invalid value for agents
+                  rule: self >= 0
+              clusterCIDR:
+                description: ClusterCIDR is the CIDR range for the pods of the cluster.
+                  Defaults to 10.42.0.0/16.
+                type: string
+                x-kubernetes-validations:
+                - message: clusterCIDR is immutable
+                  rule: self == oldSelf
+              clusterDNS:
+                description: |-
+                  ClusterDNS is the IP address for the coredns service. Needs to be in the range provided by ServiceCIDR or CoreDNS may not deploy.
+                  Defaults to 10.43.0.10.
+                type: string
+                x-kubernetes-validations:
+                - message: clusterDNS is immutable
+                  rule: self == oldSelf
+              expose:
+                description: |-
+                  Expose contains options for exposing the apiserver inside/outside of the cluster. By default, this is only exposed as a
+                  clusterIP which is relatively secure, but difficult to access outside of the cluster.
+                properties:
+                  ingress:
+                    properties:
+                      enabled:
+                        type: boolean
+                      ingressClassName:
+                        type: string
+                    required:
+                    - enabled
+                    - ingressClassName
+                    type: object
+                  loadbalancer:
+                    properties:
+                      enabled:
+                        type: boolean
+                    required:
+                    - enabled
+                    type: object
+                  nodePort:
+                    properties:
+                      enabled:
+                        type: boolean
+                    required:
+                    - enabled
+                    type: object
+                required:
+                - ingress
+                - loadbalancer
+                - nodePort
+                type: object
+              persistence:
+                description: |-
+                  Persistence contains options controlling how the etcd data of the virtual cluster is persisted. By default, no data
+                  persistence is guaranteed, so restart of a virtual cluster pod may result in data loss without this field.
+                properties:
+                  storageClassName:
+                    type: string
+                  storageRequestSize:
+                    type: string
+                  type:
+                    default: ephemeral
+                    description: Type can be ephermal, static, dynamic
+                    type: string
+                required:
+                - type
+                type: object
+              serverArgs:
+                description: ServerArgs are the ordered key value pairs (e.x. "testArg",
+                  "testValue") for the K3s pods running in server mode.
+                items:
+                  type: string
+                type: array
+              servers:
+                description: Servers is the number of K3s pods to run in server (controlplane)
+                  mode.
+                format: int32
+                type: integer
+                x-kubernetes-validations:
+                - message: cluster must have at least one server
+                  rule: self >= 1
+              serviceCIDR:
+                description: ServiceCIDR is the CIDR range for the services in the
+                  cluster. Defaults to 10.43.0.0/16.
+                type: string
+                x-kubernetes-validations:
+                - message: serviceCIDR is immutable
+                  rule: self == oldSelf
+              tlsSANs:
+                description: TLSSANs are the subjectAlternativeNames for the certificate
+                  the K3s server will use.
+                items:
+                  type: string
+                type: array
+              token:
+                description: Token is the token used to join the worker nodes to the
+                  cluster.
+                type: string
+                x-kubernetes-validations:
+                - message: token is immutable
+                  rule: self == oldSelf
+              version:
+                description: Version is a string representing the Kubernetes version
+                  to be used by the virtual nodes.
+                type: string
+            required:
+            - agents
+            - servers
+            - token
+            - version
+            type: object
+          status:
+            properties:
+              clusterCIDR:
+                type: string
+              clusterDNS:
+                type: string
+              persistence:
+                properties:
+                  storageClassName:
+                    type: string
+                  storageRequestSize:
+                    type: string
+                  type:
+                    default: ephemeral
+                    description: Type can be ephermal, static, dynamic
+                    type: string
+                required:
+                - type
+                type: object
+              serviceCIDR:
+                type: string
+              tlsSANs:
+                items:
+                  type: string
+                type: array
+            type: object
+        required:
+        - spec
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}

cli/cmds/cluster/create.go

@@ -139,6 +139,7 @@ func create(clx *cli.Context) error {
 	logrus.Infof("Creating a new cluster [%s]", name)
 	cluster := newCluster(
 		name,
+		cmds.Namespace(),
 		token,
 		int32(servers),
 		int32(agents),
@@ -226,10 +227,11 @@ func validateCreateFlags(clx *cli.Context) error {
 	return nil
 }
 
-func newCluster(name, token string, servers, agents int32, clusterCIDR, serviceCIDR string, serverArgs, agentArgs []string) *v1alpha1.Cluster {
+func newCluster(name, namespace, token string, servers, agents int32, clusterCIDR, serviceCIDR string, serverArgs, agentArgs []string) *v1alpha1.Cluster {
 	return &v1alpha1.Cluster{
 		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
+			Name:      name,
+			Namespace: namespace,
 		},
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "Cluster",

cli/cmds/cluster/delete.go

@@ -40,7 +40,8 @@ func delete(clx *cli.Context) error {
 	logrus.Infof("deleting [%s] cluster", name)
 	cluster := v1alpha1.Cluster{
 		ObjectMeta: metav1.ObjectMeta{
-			Name: name,
+			Name:      name,
+			Namespace: cmds.Namespace(),
 		},
 	}
 	return ctrlClient.Delete(ctx, &cluster)