elemental-operator/controllers/machineregistration_control...

330 lines
12 KiB
Go

/*
Copyright © 2022 - 2025 SUSE LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controllers
import (
"context"
"errors"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
managementv3 "github.com/rancher/rancher/pkg/apis/management.cattle.io/v3"
corev1 "k8s.io/api/core/v1"
rbacv1 "k8s.io/api/rbac/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/utils/ptr"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
elementalv1 "github.com/rancher/elemental-operator/api/v1beta1"
"github.com/rancher/elemental-operator/pkg/test"
)
var _ = Describe("reconcile machine registration", func() {
var r *MachineRegistrationReconciler
var mRegistration *elementalv1.MachineRegistration
var setting *managementv3.Setting
var role *rbacv1.Role
var roleBinding *rbacv1.RoleBinding
var sa *corev1.ServiceAccount
var secret *corev1.Secret
BeforeEach(func() {
r = &MachineRegistrationReconciler{
Client: cl,
}
objKey := metav1.ObjectMeta{
Name: "test-name",
Namespace: "default",
}
mRegistration = &elementalv1.MachineRegistration{ObjectMeta: objKey}
role = &rbacv1.Role{ObjectMeta: objKey}
roleBinding = &rbacv1.RoleBinding{ObjectMeta: objKey}
sa = &corev1.ServiceAccount{ObjectMeta: objKey}
secret = &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Namespace: mRegistration.Namespace,
Name: mRegistration.Name + elementalv1.SASecretSuffix,
},
}
setting = &managementv3.Setting{
ObjectMeta: metav1.ObjectMeta{
Name: "server-url",
},
Value: "https://example.com",
}
Expect(cl.Create(ctx, mRegistration)).To(Succeed())
Expect(cl.Create(ctx, setting)).To(Succeed())
})
AfterEach(func() {
Expect(test.CleanupAndWait(ctx, cl, mRegistration, setting, role, roleBinding, sa, secret)).To(Succeed())
})
reconcileTest := func() {
_, err := r.Reconcile(ctx, reconcile.Request{
NamespacedName: types.NamespacedName{
Namespace: mRegistration.Namespace,
Name: mRegistration.Name,
},
})
Expect(err).ToNot(HaveOccurred())
Expect(cl.Get(ctx, client.ObjectKey{
Name: mRegistration.Name,
Namespace: mRegistration.Namespace,
}, mRegistration)).To(Succeed())
Expect(mRegistration.Status.RegistrationToken).ToNot(BeEmpty())
Expect(mRegistration.Status.RegistrationURL).To(ContainSubstring("https://example.com/elemental/registration/"))
Expect(mRegistration.Status.ServiceAccountRef.Kind).To(Equal("ServiceAccount"))
Expect(mRegistration.Status.ServiceAccountRef.Name).To(Equal(mRegistration.Name))
Expect(mRegistration.Status.ServiceAccountRef.Namespace).To(Equal(mRegistration.Namespace))
Expect(mRegistration.Status.Conditions).To(HaveLen(1))
Expect(mRegistration.Status.Conditions[0].Type).To(Equal(elementalv1.ReadyCondition))
Expect(mRegistration.Status.Conditions[0].Reason).To(Equal(elementalv1.SuccessfullyCreatedReason))
Expect(mRegistration.Status.Conditions[0].Status).To(Equal(metav1.ConditionTrue))
objKey := types.NamespacedName{Namespace: mRegistration.Namespace, Name: mRegistration.Name}
secretKey := types.NamespacedName{Namespace: mRegistration.Namespace, Name: mRegistration.Name + elementalv1.SASecretSuffix}
Expect(r.Get(ctx, objKey, &rbacv1.Role{})).To(Succeed())
Expect(r.Get(ctx, objKey, &corev1.ServiceAccount{})).To(Succeed())
Expect(r.Get(ctx, objKey, &rbacv1.RoleBinding{})).To(Succeed())
Expect(r.Get(ctx, secretKey, &corev1.Secret{})).To(Succeed())
}
It("should reconcile machine registration object", reconcileTest)
It("should reconcile a ready machine registration and recreate token secret if missing", func() {
// Reconciles machine registration and creates and verify all dependent resources
reconcileTest()
// delete the token secret
saSecret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Namespace: mRegistration.Namespace,
Name: mRegistration.Name + elementalv1.SASecretSuffix,
},
}
Expect(r.Delete(ctx, saSecret)).To(Succeed())
secretKey := types.NamespacedName{Namespace: mRegistration.Namespace, Name: mRegistration.Name + elementalv1.SASecretSuffix}
Expect(r.Get(ctx, secretKey, &corev1.Secret{})).ToNot(Succeed())
// Reconciles machine registration and creates and verify all dependent resources
reconcileTest()
})
})
var _ = Describe("setRegistrationTokenAndURL", func() {
var r *MachineRegistrationReconciler
var mRegistration *elementalv1.MachineRegistration
BeforeEach(func() {
r = &MachineRegistrationReconciler{
Client: cl,
}
mRegistration = &elementalv1.MachineRegistration{
ObjectMeta: metav1.ObjectMeta{
Name: "test-name",
Namespace: "default",
},
}
})
AfterEach(func() {
Expect(test.CleanupAndWait(ctx, cl, mRegistration)).To(Succeed())
})
It("should successfully set registration token and url", func() {
setting := &managementv3.Setting{
ObjectMeta: metav1.ObjectMeta{
Name: "server-url",
},
Value: "https://example.com",
}
Expect(cl.Create(ctx, setting)).To(Succeed())
Expect(r.setRegistrationTokenAndURL(ctx, mRegistration)).To(Succeed())
Expect(mRegistration.Status.RegistrationToken).ToNot(BeEmpty())
Expect(mRegistration.Status.RegistrationURL).To(ContainSubstring("https://example.com/elemental/registration/"))
Expect(test.CleanupAndWait(ctx, cl, setting)).To(Succeed())
})
It("should return error when setting doesn't exist", func() {
err := r.setRegistrationTokenAndURL(ctx, mRegistration)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("failed to get server url setting"))
})
It("should return error when setting doesn't have a value", func() {
setting := &managementv3.Setting{
ObjectMeta: metav1.ObjectMeta{
Name: "server-url",
},
}
Expect(cl.Create(ctx, setting)).To(Succeed())
err := r.setRegistrationTokenAndURL(ctx, mRegistration)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("server-url is not set"))
Expect(test.CleanupAndWait(ctx, cl, setting)).To(Succeed())
})
})
var _ = Describe("createRBACObjects", func() {
var r *MachineRegistrationReconciler
var mRegistration *elementalv1.MachineRegistration
var role *rbacv1.Role
var sa *corev1.ServiceAccount
var secret *corev1.Secret
var roleBinding *rbacv1.RoleBinding
BeforeEach(func() {
r = &MachineRegistrationReconciler{
Client: cl,
}
mRegistration = &elementalv1.MachineRegistration{
ObjectMeta: metav1.ObjectMeta{
Name: "test-name",
Namespace: "default",
UID: "testuid",
},
}
objMeta := metav1.ObjectMeta{Namespace: mRegistration.Namespace, Name: mRegistration.Name}
role = &rbacv1.Role{ObjectMeta: objMeta}
sa = &corev1.ServiceAccount{ObjectMeta: objMeta}
roleBinding = &rbacv1.RoleBinding{
ObjectMeta: objMeta,
RoleRef: rbacv1.RoleRef{
Kind: "Role",
Name: mRegistration.Name,
APIGroup: "rbac.authorization.k8s.io",
},
}
secret = &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Namespace: mRegistration.Namespace,
Name: mRegistration.Name + elementalv1.SASecretSuffix,
},
}
})
AfterEach(func() {
Expect(test.CleanupAndWait(ctx, cl, role, sa, roleBinding, secret, mRegistration)).To(Succeed())
})
It("should successfully create RBAC objects", func() {
Expect(r.createRBACObjects(ctx, mRegistration)).To(Succeed())
objKey := types.NamespacedName{Namespace: mRegistration.Namespace, Name: mRegistration.Name}
role := &rbacv1.Role{}
Expect(r.Get(ctx, objKey, role)).To(Succeed())
Expect(role.OwnerReferences).To(HaveLen(1))
Expect(role.OwnerReferences[0].APIVersion).To(Equal(elementalv1.GroupVersion.String()))
Expect(role.OwnerReferences[0].Kind).To(Equal("MachineRegistration"))
Expect(role.OwnerReferences[0].Name).To(Equal(mRegistration.Name))
Expect(role.OwnerReferences[0].UID).To(Equal(mRegistration.UID))
Expect(role.OwnerReferences[0].Controller).To(Equal(ptr.To(true)))
Expect(role.Labels).To(HaveKey(elementalv1.ElementalManagedLabel))
Expect(role.Rules).To(HaveLen(2))
Expect(role.Rules[0].APIGroups).To(Equal([]string{""}))
Expect(role.Rules[0].Verbs).To(Equal([]string{"get", "watch", "list", "update", "patch"}))
Expect(role.Rules[0].Resources).To(Equal([]string{"secrets"}))
Expect(role.Rules[1].APIGroups).To(Equal([]string{"management.cattle.io"}))
Expect(role.Rules[1].Verbs).To(Equal([]string{"get", "watch", "list"}))
Expect(role.Rules[1].Resources).To(Equal([]string{"settings"}))
sa := &corev1.ServiceAccount{}
Expect(r.Get(ctx, objKey, sa)).To(Succeed())
Expect(sa.OwnerReferences).To(HaveLen(1))
Expect(sa.OwnerReferences[0].APIVersion).To(Equal(elementalv1.GroupVersion.String()))
Expect(sa.OwnerReferences[0].Kind).To(Equal("MachineRegistration"))
Expect(sa.OwnerReferences[0].Name).To(Equal(mRegistration.Name))
Expect(sa.OwnerReferences[0].UID).To(Equal(mRegistration.UID))
Expect(sa.OwnerReferences[0].Controller).To(Equal(ptr.To(true)))
Expect(sa.Labels).To(HaveKey(elementalv1.ElementalManagedLabel))
secret := &corev1.Secret{}
Expect(r.Get(ctx, types.NamespacedName{Namespace: mRegistration.Namespace, Name: mRegistration.Name + elementalv1.SASecretSuffix}, secret)).To(Succeed())
Expect(secret.OwnerReferences).To(HaveLen(1))
Expect(secret.OwnerReferences[0].APIVersion).To(Equal(elementalv1.GroupVersion.String()))
Expect(secret.OwnerReferences[0].Kind).To(Equal("MachineRegistration"))
Expect(secret.OwnerReferences[0].Name).To(Equal(mRegistration.Name))
Expect(secret.OwnerReferences[0].UID).To(Equal(mRegistration.UID))
Expect(secret.OwnerReferences[0].Controller).To(Equal(ptr.To(true)))
Expect(secret.Annotations).To(HaveKeyWithValue("kubernetes.io/service-account.name", mRegistration.Name))
Expect(secret.Type).To(Equal(corev1.SecretTypeServiceAccountToken))
roleBinding := &rbacv1.RoleBinding{}
Expect(r.Get(ctx, objKey, roleBinding)).To(Succeed())
Expect(roleBinding.OwnerReferences).To(HaveLen(1))
Expect(roleBinding.OwnerReferences[0].APIVersion).To(Equal(elementalv1.GroupVersion.String()))
Expect(roleBinding.OwnerReferences[0].Kind).To(Equal("MachineRegistration"))
Expect(roleBinding.OwnerReferences[0].Name).To(Equal(mRegistration.Name))
Expect(roleBinding.OwnerReferences[0].UID).To(Equal(mRegistration.UID))
Expect(roleBinding.OwnerReferences[0].Controller).To(Equal(ptr.To(true)))
Expect(roleBinding.Labels).To(HaveKey(elementalv1.ElementalManagedLabel))
Expect(roleBinding.Subjects).To(HaveLen(1))
Expect(roleBinding.Subjects[0].Kind).To(Equal("ServiceAccount"))
Expect(roleBinding.Subjects[0].Name).To(Equal(mRegistration.Name))
Expect(roleBinding.Subjects[0].Namespace).To(Equal(mRegistration.Namespace))
Expect(mRegistration.Status.ServiceAccountRef.Kind).To(Equal("ServiceAccount"))
Expect(mRegistration.Status.ServiceAccountRef.Name).To(Equal(mRegistration.Name))
Expect(mRegistration.Status.ServiceAccountRef.Namespace).To(Equal(mRegistration.Namespace))
})
It("shouldn't error when RBAC already exists", func() {
Expect(r.Create(ctx, role)).To(Succeed())
Expect(r.Create(ctx, sa)).To(Succeed())
Expect(r.Create(ctx, roleBinding)).To(Succeed())
Expect(r.Create(ctx, secret)).To(Succeed())
Expect(r.createRBACObjects(ctx, mRegistration)).To(Succeed())
Expect(mRegistration.Status.ServiceAccountRef.Kind).To(Equal("ServiceAccount"))
Expect(mRegistration.Status.ServiceAccountRef.Name).To(Equal(mRegistration.Name))
Expect(mRegistration.Status.ServiceAccountRef.Namespace).To(Equal(mRegistration.Namespace))
})
It("should error when RBAC fails to be created", func() {
r.Client = machineRegistrationFailingClient{}
err := r.createRBACObjects(ctx, mRegistration)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("failed to create"))
})
})
type machineRegistrationFailingClient struct {
client.Client
}
func (cl machineRegistrationFailingClient) Create(ctx context.Context, obj client.Object, opts ...client.CreateOption) error {
return errors.New("failed to create")
}
func (cl machineRegistrationFailingClient) Delete(ctx context.Context, obj client.Object, opts ...client.DeleteOption) error {
return errors.New("failed to delete")
}