temp commit

vendor/github.com/projectcalico/libcalico-go/lib/clientv3/workloadendpoint.go

@@ -0,0 +1,166 @@
+// Copyright (c) 2017-2018 Tigera, Inc. All rights reserved.
+
+// 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 clientv3
+
+import (
+	"context"
+	"fmt"
+
+	apiv3 "github.com/projectcalico/libcalico-go/lib/apis/v3"
+	"github.com/projectcalico/libcalico-go/lib/errors"
+	"github.com/projectcalico/libcalico-go/lib/names"
+	"github.com/projectcalico/libcalico-go/lib/options"
+	validator "github.com/projectcalico/libcalico-go/lib/validator/v3"
+	"github.com/projectcalico/libcalico-go/lib/watch"
+)
+
+// WorkloadEndpointInterface has methods to work with WorkloadEndpoint resources.
+type WorkloadEndpointInterface interface {
+	Create(ctx context.Context, res *apiv3.WorkloadEndpoint, opts options.SetOptions) (*apiv3.WorkloadEndpoint, error)
+	Update(ctx context.Context, res *apiv3.WorkloadEndpoint, opts options.SetOptions) (*apiv3.WorkloadEndpoint, error)
+	Delete(ctx context.Context, namespace, name string, opts options.DeleteOptions) (*apiv3.WorkloadEndpoint, error)
+	Get(ctx context.Context, namespace, name string, opts options.GetOptions) (*apiv3.WorkloadEndpoint, error)
+	List(ctx context.Context, opts options.ListOptions) (*apiv3.WorkloadEndpointList, error)
+	Watch(ctx context.Context, opts options.ListOptions) (watch.Interface, error)
+}
+
+// workloadEndpoints implements WorkloadEndpointInterface
+type workloadEndpoints struct {
+	client client
+}
+
+// Create takes the representation of a WorkloadEndpoint and creates it.  Returns the stored
+// representation of the WorkloadEndpoint, and an error, if there is any.
+func (r workloadEndpoints) Create(ctx context.Context, res *apiv3.WorkloadEndpoint, opts options.SetOptions) (*apiv3.WorkloadEndpoint, error) {
+	if res != nil {
+		// Since we're about to default some fields, take a (shallow) copy of the input data
+		// before we do so.
+		resCopy := *res
+		res = &resCopy
+	}
+	if err := r.assignOrValidateName(res); err != nil {
+		return nil, err
+	} else if err := validator.Validate(res); err != nil {
+		return nil, err
+	}
+	r.updateLabelsForStorage(res)
+	out, err := r.client.resources.Create(ctx, opts, apiv3.KindWorkloadEndpoint, res)
+	if out != nil {
+		return out.(*apiv3.WorkloadEndpoint), err
+	}
+	return nil, err
+}
+
+// Update takes the representation of a WorkloadEndpoint and updates it. Returns the stored
+// representation of the WorkloadEndpoint, and an error, if there is any.
+func (r workloadEndpoints) Update(ctx context.Context, res *apiv3.WorkloadEndpoint, opts options.SetOptions) (*apiv3.WorkloadEndpoint, error) {
+	if res != nil {
+		// Since we're about to default some fields, take a (shallow) copy of the input data
+		// before we do so.
+		resCopy := *res
+		res = &resCopy
+	}
+	if err := r.assignOrValidateName(res); err != nil {
+		return nil, err
+	} else if err := validator.Validate(res); err != nil {
+		return nil, err
+	}
+	r.updateLabelsForStorage(res)
+	out, err := r.client.resources.Update(ctx, opts, apiv3.KindWorkloadEndpoint, res)
+	if out != nil {
+		return out.(*apiv3.WorkloadEndpoint), err
+	}
+	return nil, err
+}
+
+// Delete takes name of the WorkloadEndpoint and deletes it. Returns an error if one occurs.
+func (r workloadEndpoints) Delete(ctx context.Context, namespace, name string, opts options.DeleteOptions) (*apiv3.WorkloadEndpoint, error) {
+	out, err := r.client.resources.Delete(ctx, opts, apiv3.KindWorkloadEndpoint, namespace, name)
+	if out != nil {
+		return out.(*apiv3.WorkloadEndpoint), err
+	}
+	return nil, err
+}
+
+// Get takes name of the WorkloadEndpoint, and returns the corresponding WorkloadEndpoint object,
+// and an error if there is any.
+func (r workloadEndpoints) Get(ctx context.Context, namespace, name string, opts options.GetOptions) (*apiv3.WorkloadEndpoint, error) {
+	out, err := r.client.resources.Get(ctx, opts, apiv3.KindWorkloadEndpoint, namespace, name)
+	if out != nil {
+		return out.(*apiv3.WorkloadEndpoint), err
+	}
+	return nil, err
+}
+
+// List returns the list of WorkloadEndpoint objects that match the supplied options.
+func (r workloadEndpoints) List(ctx context.Context, opts options.ListOptions) (*apiv3.WorkloadEndpointList, error) {
+	res := &apiv3.WorkloadEndpointList{}
+	if err := r.client.resources.List(ctx, opts, apiv3.KindWorkloadEndpoint, apiv3.KindWorkloadEndpointList, res); err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
+// Watch returns a watch.Interface that watches the NetworkPolicies that match the
+// supplied options.
+func (r workloadEndpoints) Watch(ctx context.Context, opts options.ListOptions) (watch.Interface, error) {
+	return r.client.resources.Watch(ctx, opts, apiv3.KindWorkloadEndpoint, nil)
+}
+
+// assignOrValidateName either assigns the name calculated from the Spec fields, or validates
+// the name against the spec fields.
+func (r workloadEndpoints) assignOrValidateName(res *apiv3.WorkloadEndpoint) error {
+	// Validate the workload endpoint indices and the name match.
+	wepids := names.WorkloadEndpointIdentifiers{
+		Node:         res.Spec.Node,
+		Orchestrator: res.Spec.Orchestrator,
+		Endpoint:     res.Spec.Endpoint,
+		Workload:     res.Spec.Workload,
+		Pod:          res.Spec.Pod,
+		ContainerID:  res.Spec.ContainerID,
+	}
+	expectedName, err := wepids.CalculateWorkloadEndpointName(false)
+	if err != nil {
+		return err
+	}
+	if len(res.Name) == 0 {
+		// If a name was not specified then we will calculate it on behalf of the caller.
+		res.Name = expectedName
+		return nil
+	}
+	if res.Name != expectedName {
+		return errors.ErrorValidation{
+			ErroredFields: []errors.ErroredField{{
+				Name:   "Name",
+				Value:  res.Name,
+				Reason: fmt.Sprintf("the WorkloadEndpoint name does not match the primary identifiers assigned in the Spec: expected name %s", expectedName),
+			}},
+		}
+	}
+	return nil
+}
+
+// updateLabelsForStorage updates the set of labels that we persist.  It adds/overrides
+// the Namespace and Orchestrator labels which must be set to the correct values and are
+// not user configurable.
+func (r workloadEndpoints) updateLabelsForStorage(res *apiv3.WorkloadEndpoint) {
+	labelsCopy := make(map[string]string, len(res.GetLabels())+2)
+	for k, v := range res.GetLabels() {
+		labelsCopy[k] = v
+	}
+	labelsCopy[apiv3.LabelNamespace] = res.Namespace
+	labelsCopy[apiv3.LabelOrchestrator] = res.Spec.Orchestrator
+	res.SetLabels(labelsCopy)
+}