Merge pull request #1 from maiqueb/add-crd-clients-listers-informers

code-gen: provide types and generator scripts

Author: maiqueb

.github/workflows/test.yaml

@@ -0,0 +1,27 @@
+name: Go
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+
+      - name: Verify codegen
+        run: hack/verify-codegen.sh
+        env:
+          GOPATH: /home/runner/go
+
+      - name: Build the client example
+        run: go build -o _out/persistentips_dummy_client cmd/example/main.go

.gitignore

@@ -0,0 +1,2 @@
+github.com/
+_out/

artifacts/k8s.cni.cncf.io_ipamleases.yaml

@@ -0,0 +1,57 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.13.0
+  name: ipamleases.k8s.cni.cncf.io
+spec:
+  group: k8s.cni.cncf.io
+  names:
+    kind: IPAMLease
+    listKind: IPAMLeaseList
+    plural: ipamleases
+    singular: ipamlease
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: IPAMLease is the Schema for the IPAMLease API
+        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:
+              interface:
+                description: The pod interface name for which this allocation was
+                  created
+                type: string
+              ips:
+                description: The list of IP addresses (v4, v6) that were allocated
+                  for the pod interface
+                items:
+                  type: string
+                type: array
+              network:
+                description: The network attachment definition name for which this
+                  persistent allocation was created
+                type: string
+            required:
+            - interface
+            - ips
+            - network
+            type: object
+        type: object
+    served: true
+    storage: true

cmd/example/main.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+
+	"github.com/golang/glog"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/tools/clientcmd"
+
+	"github.com/maiqueb/persistentips/pkg/crd/persistentip/v1alpha1"
+	clientset "github.com/maiqueb/persistentips/pkg/crd/persistentip/v1alpha1/apis/clientset/versioned"
+)
+
+var (
+	kubeConfig = flag.String("kubeconfig", "", "Path to a kubeconfig. Only required if out-of-cluster.")
+	kubeAPIURL = flag.String("kube-api-url", "", "The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.")
+)
+
+func main() {
+	flag.Parse()
+
+	cfg, err := clientcmd.BuildConfigFromFlags(*kubeAPIURL, *kubeConfig)
+	if err != nil {
+		glog.Fatalf("Error building kubeconfig: %v", err)
+	}
+
+	exampleClient, err := clientset.NewForConfig(cfg)
+	if err != nil {
+		glog.Fatalf("Error building example clientset: %v", err)
+	}
+
+	// create a persistent IP allocation
+	pip := &v1alpha1.IPAMLease{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "example",
+		},
+		Spec: v1alpha1.IPAMLeaseSpec{
+			Network:   "tenantblue",
+			Interface: "iface321",
+			IPs:       []string{"winner", "winner", "chicken", "dinner"},
+		},
+	}
+
+	_, err = exampleClient.K8sV1alpha1().IPAMLeases("default").Create(
+		context.Background(),
+		pip,
+		metav1.CreateOptions{},
+	)
+	if err != nil {
+		glog.Fatalf("Error creating a dummy persistentIP object: %v", err)
+	}
+
+	defer func() {
+		// teardown persistent IP
+		_ = exampleClient.K8sV1alpha1().IPAMLeases("default").Delete(
+			context.Background(),
+			pip.Name,
+			metav1.DeleteOptions{},
+		)
+	}()
+
+	allPersistentIPs, err := exampleClient.K8sV1alpha1().IPAMLeases(metav1.NamespaceAll).List(
+		context.Background(),
+		metav1.ListOptions{},
+	)
+	if err != nil {
+		glog.Fatalf("Error listing all persistentIP objects: %v", err)
+	}
+
+	for _, persistentIP := range allPersistentIPs.Items {
+		fmt.Printf("IPAM lease name: %q\n", persistentIP.Name)
+		fmt.Printf("  - spec: %v\n", persistentIP.Spec)
+	}
+}

go.mod

@@ -0,0 +1,55 @@
+module github.com/maiqueb/persistentips
+
+go 1.20
+
+require (
+	github.com/golang/glog v1.1.2
+	k8s.io/apimachinery v0.28.1
+	k8s.io/client-go v0.28.1
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/emicklei/go-restful/v3 v3.9.0 // indirect
+	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/onsi/ginkgo/v2 v2.11.0 // indirect
+	github.com/onsi/gomega v1.27.10 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/sys v0.11.0 // indirect
+	golang.org/x/term v0.11.0 // indirect
+	golang.org/x/text v0.12.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.12.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/api v0.28.1 // indirect
+	k8s.io/klog/v2 v2.100.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20230816210353-14e408962443 // indirect
+	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.3.0 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)