Merge pull request #1119 from mercedes-benz/mgrote/service-interface-…

…load-balancer

✨Service interface load balancer

.golangci.yml

@@ -85,6 +85,8 @@ linters-settings:
         alias: infrav1alpha4
       - pkg: sigs.k8s.io/cluster-api-provider-openstack/api/v1beta1
         alias: infrav1
+      - pkg: sigs.k8s.io/cluster-api-provider-openstack/pkg/utils/errors
+        alias: capoerrors
       # CAPI
       - pkg: sigs.k8s.io/cluster-api/api/v1alpha3
         alias: clusterv1alpha3

hack/boilerplate/boilerplate.generatego.txt

@@ -1,5 +1,5 @@
 /*
-Copyright 2021 The Kubernetes Authors.
+Copyright 2022 The Kubernetes Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

pkg/cloud/services/loadbalancer/client.go

@@ -0,0 +1,231 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+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 loadbalancer
+
+import (
+	"fmt"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/listeners"
+	"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/loadbalancers"
+	"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/monitors"
+	"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/pools"
+	"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/providers"
+
+	"sigs.k8s.io/cluster-api-provider-openstack/pkg/metrics"
+	capoerrors "sigs.k8s.io/cluster-api-provider-openstack/pkg/utils/errors"
+)
+
+type LbClient interface {
+	CreateLoadBalancer(opts loadbalancers.CreateOptsBuilder) (*loadbalancers.LoadBalancer, error)
+	ListLoadBalancers(opts loadbalancers.ListOptsBuilder) ([]loadbalancers.LoadBalancer, error)
+	GetLoadBalancer(id string) (*loadbalancers.LoadBalancer, error)
+	DeleteLoadBalancer(id string, opts loadbalancers.DeleteOptsBuilder) error
+	CreateListener(opts listeners.CreateOptsBuilder) (*listeners.Listener, error)
+	ListListeners(opts listeners.ListOptsBuilder) ([]listeners.Listener, error)
+	GetListener(id string) (*listeners.Listener, error)
+	DeleteListener(id string) error
+	CreatePool(opts pools.CreateOptsBuilder) (*pools.Pool, error)
+	ListPools(opts pools.ListOptsBuilder) ([]pools.Pool, error)
+	GetPool(id string) (*pools.Pool, error)
+	DeletePool(id string) error
+	CreatePoolMember(poolID string, opts pools.CreateMemberOptsBuilder) (*pools.Member, error)
+	ListPoolMember(poolID string, opts pools.ListMembersOptsBuilder) ([]pools.Member, error)
+	DeletePoolMember(poolID string, lbMemberID string) error
+	CreateMonitor(opts monitors.CreateOptsBuilder) (*monitors.Monitor, error)
+	ListMonitors(opts monitors.ListOptsBuilder) ([]monitors.Monitor, error)
+	DeleteMonitor(id string) error
+	ListLoadBalancerProviders() ([]providers.Provider, error)
+}
+
+type lbClient struct {
+	serviceClient *gophercloud.ServiceClient
+}
+
+func (l lbClient) CreateLoadBalancer(opts loadbalancers.CreateOptsBuilder) (*loadbalancers.LoadBalancer, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer", "create")
+	lb, err := loadbalancers.Create(l.serviceClient, opts).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return lb, nil
+}
+
+func (l lbClient) ListLoadBalancers(opts loadbalancers.ListOptsBuilder) ([]loadbalancers.LoadBalancer, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer", "list")
+	allPages, err := loadbalancers.List(l.serviceClient, opts).AllPages()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return loadbalancers.ExtractLoadBalancers(allPages)
+}
+
+func (l lbClient) GetLoadBalancer(id string) (*loadbalancers.LoadBalancer, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer", "get")
+	lb, err := loadbalancers.Get(l.serviceClient, id).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return lb, nil
+}
+
+func (l lbClient) DeleteLoadBalancer(id string, opts loadbalancers.DeleteOptsBuilder) error {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer", "delete")
+	err := loadbalancers.Delete(l.serviceClient, id, opts).ExtractErr()
+	if mc.ObserveRequestIgnoreNotFound(err) != nil && !capoerrors.IsNotFound(err) {
+		return err
+	}
+	return nil
+}
+
+func (l lbClient) CreateListener(opts listeners.CreateOptsBuilder) (*listeners.Listener, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_listener", "create")
+	listener, err := listeners.Create(l.serviceClient, opts).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return listener, nil
+}
+
+func (l lbClient) ListListeners(opts listeners.ListOptsBuilder) ([]listeners.Listener, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_listener", "list")
+	allPages, err := listeners.List(l.serviceClient, opts).AllPages()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return listeners.ExtractListeners(allPages)
+}
+
+func (l lbClient) GetListener(id string) (*listeners.Listener, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_listener", "get")
+	listener, err := listeners.Get(l.serviceClient, id).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return listener, nil
+}
+
+func (l lbClient) DeleteListener(id string) error {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_listener", "delete")
+	err := listeners.Delete(l.serviceClient, id).ExtractErr()
+	if mc.ObserveRequestIgnoreNotFound(err) != nil && !capoerrors.IsNotFound(err) {
+		return fmt.Errorf("error deleting lbaas listener %s: %v", id, err)
+	}
+	return nil
+}
+
+func (l lbClient) CreatePool(opts pools.CreateOptsBuilder) (*pools.Pool, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_pool", "create")
+	pool, err := pools.Create(l.serviceClient, opts).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return pool, nil
+}
+
+func (l lbClient) ListPools(opts pools.ListOptsBuilder) ([]pools.Pool, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_pool", "list")
+	allPages, err := pools.List(l.serviceClient, opts).AllPages()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return pools.ExtractPools(allPages)
+}
+
+func (l lbClient) GetPool(id string) (*pools.Pool, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_pool", "get")
+	pool, err := pools.Get(l.serviceClient, id).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return pool, nil
+}
+
+func (l lbClient) DeletePool(id string) error {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_pool", "delete")
+	err := pools.Delete(l.serviceClient, id).ExtractErr()
+	if mc.ObserveRequestIgnoreNotFound(err) != nil && !capoerrors.IsNotFound(err) {
+		return fmt.Errorf("error deleting lbaas pool %s: %v", id, err)
+	}
+	return nil
+}
+
+func (l lbClient) CreatePoolMember(poolID string, lbMemberOpts pools.CreateMemberOptsBuilder) (*pools.Member, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_member", "create")
+	member, err := pools.CreateMember(l.serviceClient, poolID, lbMemberOpts).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, fmt.Errorf("error create lbmember: %s", err)
+	}
+	return member, nil
+}
+
+func (l lbClient) ListPoolMember(poolID string, opts pools.ListMembersOptsBuilder) ([]pools.Member, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_pool", "list")
+	allPages, err := pools.ListMembers(l.serviceClient, poolID, opts).AllPages()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return pools.ExtractMembers(allPages)
+}
+
+func (l lbClient) DeletePoolMember(poolID string, lbMemberID string) error {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_member", "delete")
+	err := pools.DeleteMember(l.serviceClient, poolID, lbMemberID).ExtractErr()
+	if mc.ObserveRequest(err) != nil {
+		return fmt.Errorf("error deleting lbmember: %s", err)
+	}
+	return nil
+}
+
+func (l lbClient) CreateMonitor(opts monitors.CreateOptsBuilder) (*monitors.Monitor, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_healthmonitor", "create")
+	monitor, err := monitors.Create(l.serviceClient, opts).Extract()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return monitor, nil
+}
+
+func (l lbClient) ListMonitors(opts monitors.ListOptsBuilder) ([]monitors.Monitor, error) {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_healthmonitor", "list")
+	allPages, err := monitors.List(l.serviceClient, opts).AllPages()
+	if mc.ObserveRequest(err) != nil {
+		return nil, err
+	}
+	return monitors.ExtractMonitors(allPages)
+}
+
+func (l lbClient) DeleteMonitor(id string) error {
+	mc := metrics.NewMetricPrometheusContext("loadbalancer_healthmonitor", "delete")
+	err := monitors.Delete(l.serviceClient, id).ExtractErr()
+	if mc.ObserveRequestIgnoreNotFound(err) != nil && !capoerrors.IsNotFound(err) {
+		return fmt.Errorf("error deleting lbaas monitor %s: %v", id, err)
+	}
+	return nil
+}
+
+func (l lbClient) ListLoadBalancerProviders() ([]providers.Provider, error) {
+	allPages, err := providers.List(l.serviceClient, providers.ListOpts{}).AllPages()
+	if err != nil {
+		return nil, fmt.Errorf("listing providers: %v", err)
+	}
+	providersList, err := providers.ExtractProviders(allPages)
+	if err != nil {
+		return nil, fmt.Errorf("extracting loadbalancer providers pages: %v", err)
+	}
+	return providersList, nil
+}