5968491960

Committed 24 Aug 2023 08:16PM UTC coverage: 74.335% (-0.7%) from 75.025%

Build # 5968491960

Build Type

Pull #518

github

Committed by

gargravarr

Commit Message

Remove debug printfs.

Signed-off-by: Rodrigo Reis <rodrigo.gargravarr@gmail.com>

Pull Request Pull Request #518: (WIP) Include ingress and/or routegroup definitions in Stack template.

Run Details

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91.01

/pkg/core/stack_resources.go

package core

import (
        "fmt"
        "sort"
        "strconv"
        "strings"

        log "github.com/sirupsen/logrus"
        rgv1 "github.com/szuecs/routegroup-client/apis/zalando.org/v1"
        zv1 "github.com/zalando-incubator/stackset-controller/pkg/apis/zalando.org/v1"
        appsv1 "k8s.io/api/apps/v1"
        autoscaling "k8s.io/api/autoscaling/v2"
        v1 "k8s.io/api/core/v1"
        networking "k8s.io/api/networking/v1"
        metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
        "k8s.io/apimachinery/pkg/labels"
        "k8s.io/apimachinery/pkg/util/intstr"
        "k8s.io/apimachinery/pkg/util/sets"
)

const (
        apiVersionAppsV1 = "apps/v1"
        kindDeployment   = "Deployment"
)

type ingressOrRouteGroupSpec interface {
        GetAnnotations() map[string]string
        GetHosts() []string
}

var (
        // set implementation with 0 Byte value
        selectorLabels = map[string]struct{}{
                StacksetHeritageLabelKey: {},
                StackVersionLabelKey:     {},
        }

        // PathTypeImplementationSpecific is the used implementation path type
        // for k8s.io/api/networking/v1.HTTPIngressPath resources.
        PathTypeImplementationSpecific = networking.PathTypeImplementationSpecific
)

func mapCopy(m map[string]string) map[string]string {
        newMap := map[string]string{}
        for k, v := range m {
                newMap[k] = v
        }
        return newMap
}

// limitLabels returns a limited set of labels based on the validKeys.
func limitLabels(labels map[string]string, validKeys map[string]struct{}) map[string]string {
        newLabels := make(map[string]string, len(labels))
        for k, v := range labels {
                if _, ok := validKeys[k]; ok {
                        newLabels[k] = v
                }
        }
        return newLabels
}

// templateObjectMetaInjectLabels injects labels into a pod template spec.
func objectMetaInjectLabels(objectMeta metav1.ObjectMeta, labels map[string]string) metav1.ObjectMeta {
        if objectMeta.Labels == nil {
                objectMeta.Labels = map[string]string{}
        }
        for key, value := range labels {
                if _, ok := objectMeta.Labels[key]; !ok {
                        objectMeta.Labels[key] = value
                }
        }
        return objectMeta
}

func (sc *StackContainer) resourceMeta() metav1.ObjectMeta {
        resourceLabels := mapCopy(sc.Stack.Labels)

        return metav1.ObjectMeta{
                Name:      sc.Name(),
                Namespace: sc.Namespace(),
                Annotations: map[string]string{
                        stackGenerationAnnotationKey: strconv.FormatInt(sc.Stack.Generation, 10),
                },
                Labels: resourceLabels,
                OwnerReferences: []metav1.OwnerReference{
                        {
                                APIVersion: APIVersion,
                                Kind:       KindStack,
                                Name:       sc.Name(),
                                UID:        sc.Stack.UID,
                        },
                },
        }
}

// getServicePorts gets the service ports to be used for the stack service.
func getServicePorts(stackSpec zv1.StackSpecInternal, backendPort *intstr.IntOrString) ([]v1.ServicePort, error) {
        var servicePorts []v1.ServicePort
        if stackSpec.StackSpec.Service == nil ||
                len(stackSpec.StackSpec.Service.Ports) == 0 {

                servicePorts = servicePortsFromContainers(
                        stackSpec.StackSpec.PodTemplate.Spec.Containers,
                )
        } else {
                servicePorts = stackSpec.StackSpec.Service.Ports
        }

        // validate that one port in the list maps to the backendPort.
        if backendPort != nil {
                for _, port := range servicePorts {
                        switch backendPort.Type {
                        case intstr.Int:
                                if port.Port == backendPort.IntVal {
                                        return servicePorts, nil
                                }
                        case intstr.String:
                                if port.Name == backendPort.StrVal {
                                        return servicePorts, nil
                                }
                        }
                }

                return nil, fmt.Errorf("no service ports matching backendPort '%s'", backendPort.String())
        }

        return servicePorts, nil
}

// servicePortsFromTemplate gets service port from pod template.
func servicePortsFromContainers(containers []v1.Container) []v1.ServicePort {
        ports := make([]v1.ServicePort, 0)
        for i, container := range containers {
                for j, port := range container.Ports {
                        name := fmt.Sprintf("port-%d-%d", i, j)
                        if port.Name != "" {
                                name = port.Name
                        }
                        servicePort := v1.ServicePort{
                                Name:       name,
                                Protocol:   port.Protocol,
                                Port:       port.ContainerPort,
                                TargetPort: intstr.FromInt(int(port.ContainerPort)),
                        }
                        // set default protocol if not specified
                        if servicePort.Protocol == "" {
                                servicePort.Protocol = v1.ProtocolTCP
                        }
                        ports = append(ports, servicePort)
                }
        }
        return ports
}

func (sc *StackContainer) selector() map[string]string {
        return limitLabels(sc.Stack.Labels, selectorLabels)
}

func (sc *StackContainer) GenerateDeployment() *appsv1.Deployment {
        stack := sc.Stack

        desiredReplicas := sc.stackReplicas
        if sc.prescalingActive {
                desiredReplicas = sc.prescalingReplicas
        }

        var updatedReplicas *int32

        if desiredReplicas != 0 && !sc.ScaledDown() {
                // Stack scaled up, rescale the deployment if it's at 0 replicas, or if HPA is unused and we don't run autoscaling
                if sc.deploymentReplicas == 0 || (!sc.IsAutoscaled() && desiredReplicas != sc.deploymentReplicas) {
                        updatedReplicas = wrapReplicas(desiredReplicas)
                }
        } else {
                // Stack scaled down (manually or because it doesn't receive traffic), check if we need to scale down the deployment
                if sc.deploymentReplicas != 0 {
                        updatedReplicas = wrapReplicas(0)
                }
        }

        if updatedReplicas == nil {
                updatedReplicas = wrapReplicas(sc.deploymentReplicas)
        }

        var strategy *appsv1.DeploymentStrategy
        if stack.Spec.StackSpec.Strategy != nil {
                strategy = stack.Spec.StackSpec.Strategy.DeepCopy()
        }

        embeddedCopy := stack.Spec.StackSpec.PodTemplate.EmbeddedObjectMeta.DeepCopy()

        templateObjectMeta := metav1.ObjectMeta{
                Annotations: embeddedCopy.Annotations,
                Labels:      embeddedCopy.Labels,
        }

        deployment := &appsv1.Deployment{
                ObjectMeta: sc.resourceMeta(),
                Spec: appsv1.DeploymentSpec{
                        Replicas:        updatedReplicas,
                        MinReadySeconds: sc.Stack.Spec.StackSpec.MinReadySeconds,
                        Selector: &metav1.LabelSelector{
                                MatchLabels: sc.selector(),
                        },
                        Template: v1.PodTemplateSpec{
                                ObjectMeta: objectMetaInjectLabels(templateObjectMeta, stack.Labels),
                                Spec:       *stack.Spec.StackSpec.PodTemplate.Spec.DeepCopy(),
                        },
                },
        }
        if strategy != nil {
                deployment.Spec.Strategy = *strategy
        }
        return deployment
}

func (sc *StackContainer) GenerateHPA() (*autoscaling.HorizontalPodAutoscaler, error) {
        autoscalerSpec := sc.Stack.Spec.StackSpec.Autoscaler
        hpaSpec := sc.Stack.Spec.StackSpec.HorizontalPodAutoscaler
        trafficWeight := sc.actualTrafficWeight

        if autoscalerSpec == nil && hpaSpec == nil {
                return nil, nil
        }

        result := &autoscaling.HorizontalPodAutoscaler{
                ObjectMeta: sc.resourceMeta(),
                TypeMeta: metav1.TypeMeta{
                        Kind:       "HorizontalPodAutoscaler",
                        APIVersion: "autoscaling/v2",
                },
                Spec: autoscaling.HorizontalPodAutoscalerSpec{
                        ScaleTargetRef: autoscaling.CrossVersionObjectReference{
                                APIVersion: apiVersionAppsV1,
                                Kind:       kindDeployment,
                                Name:       sc.Name(),
                        },
                },
        }

        if autoscalerSpec != nil {
                result.Spec.MinReplicas = autoscalerSpec.MinReplicas
                result.Spec.MaxReplicas = autoscalerSpec.MaxReplicas

                metrics, annotations, err := convertCustomMetrics(sc.stacksetName, sc.Name(), sc.Namespace(), autoscalerSpec.Metrics, trafficWeight)
                if err != nil {
                        return nil, err
                }
                result.Spec.Metrics = metrics
                result.Annotations = mergeLabels(result.Annotations, annotations)
                result.Spec.Behavior = autoscalerSpec.Behavior
        } else {
                result.Spec.MinReplicas = hpaSpec.MinReplicas
                result.Spec.MaxReplicas = hpaSpec.MaxReplicas
                metrics := make([]autoscaling.MetricSpec, 0, len(hpaSpec.Metrics))
                for _, m := range hpaSpec.Metrics {
                        m := m
                        metric := autoscaling.MetricSpec{}
                        err := Convert_v2beta1_MetricSpec_To_autoscaling_MetricSpec(&m, &metric, nil)
                        if err != nil {
                                return nil, err
                        }
                        metrics = append(metrics, metric)
                }
                result.Spec.Metrics = metrics
                result.Spec.Behavior = hpaSpec.Behavior
        }

        // If prescaling is enabled, ensure we have at least `precalingReplicas` pods
        if sc.prescalingActive && (result.Spec.MinReplicas == nil || *result.Spec.MinReplicas < sc.prescalingReplicas) {
                pr := sc.prescalingReplicas
                result.Spec.MinReplicas = &pr
        }

        return result, nil
}

func (sc *StackContainer) GenerateService() (*v1.Service, error) {
        // get service ports to be used for the service
        var backendPort *intstr.IntOrString
        // Ingress or external managed Ingress
        if sc.HasBackendPort() {
                backendPort = sc.backendPort
        }

        servicePorts, err := getServicePorts(sc.Stack.Spec, backendPort)
        if err != nil {
                return nil, err
        }

        metaObj := sc.resourceMeta()
        stackSpec := sc.Stack.Spec
        if stackSpec.StackSpec.Service != nil {
                metaObj.Annotations = mergeLabels(
                        metaObj.Annotations,
                        stackSpec.StackSpec.Service.Annotations,
                )
        }
        return &v1.Service{
                ObjectMeta: metaObj,
                Spec: v1.ServiceSpec{
                        Selector: sc.selector(),
                        Type:     v1.ServiceTypeClusterIP,
                        Ports:    servicePorts,
                },
        }, nil
}

func (sc *StackContainer) stackHostnames(spec ingressOrRouteGroupSpec) ([]string, error) {
        result := sets.NewString()

        // Old-style autogenerated hostnames
        for _, host := range spec.GetHosts() {
                for _, domain := range sc.clusterDomains {
                        if strings.HasSuffix(host, domain) {
                                result.Insert(fmt.Sprintf("%s.%s", sc.Name(), domain))
                        } else {
                                log.Debugf("Ingress host: %s suffix did not match cluster-domain %s", host, domain)
                        }
                }
        }

        return result.List(), nil
}

func (sc *StackContainer) GenerateIngress() (*networking.Ingress, error) {
        ingressSpec := sc.Stack.Spec.Ingress
        if ingressSpec == nil {
                // fallback to parent StackSet ingress spec, for backward compatibility
                ingressSpec = sc.ingressSpec
        }

        if !sc.HasBackendPort() || ingressSpec == nil {
                return nil, nil
        }

        hostnames, err := sc.stackHostnames(ingressSpec)
        if err != nil {
                return nil, err
        }
        if len(hostnames) == 0 {
                return nil, nil
        }

        rules := make([]networking.IngressRule, 0, len(hostnames))
        for _, hostname := range hostnames {
                rules = append(rules, networking.IngressRule{
                        IngressRuleValue: networking.IngressRuleValue{
                                HTTP: &networking.HTTPIngressRuleValue{
                                        Paths: []networking.HTTPIngressPath{
                                                {
                                                        PathType: &PathTypeImplementationSpecific,
                                                        Path:     ingressSpec.Path,
                                                        Backend: networking.IngressBackend{
                                                                Service: &networking.IngressServiceBackend{
                                                                        Name: sc.Name(),
                                                                        Port: networking.ServiceBackendPort{
                                                                                Name:   sc.backendPort.StrVal,
                                                                                Number: sc.backendPort.IntVal,
                                                                        },
                                                                },
                                                        },
                                                },
                                        },
                                },
                        },
                        Host: hostname,
                })
        }

        // sort rules by hostname for a stable order
        sort.Slice(rules, func(i, j int) bool {
                return rules[i].Host < rules[j].Host
        })

        result := &networking.Ingress{
                ObjectMeta: sc.resourceMeta(),
                Spec: networking.IngressSpec{
                        Rules: rules,
                },
        }

        // insert annotations
        result.Annotations = mergeLabels(result.Annotations, sc.ingressSpec.GetAnnotations())
        return result, nil
}

func (sc *StackContainer) GenerateRouteGroup() (*rgv1.RouteGroup, error) {
        if !sc.HasBackendPort() || sc.routeGroupSpec == nil {
                return nil, nil
        }

        hostnames, err := sc.stackHostnames(sc.routeGroupSpec)
        if err != nil {
                return nil, err
        }
        if len(hostnames) == 0 {
                return nil, nil
        }

        result := &rgv1.RouteGroup{
                ObjectMeta: sc.resourceMeta(),
                Spec: rgv1.RouteGroupSpec{
                        Hosts: hostnames,
                        Backends: []rgv1.RouteGroupBackend{
                                {
                                        Name:        sc.Name(),
                                        Type:        rgv1.ServiceRouteGroupBackend,
                                        ServiceName: sc.Name(),
                                        ServicePort: sc.backendPort.IntValue(),
                                        Algorithm:   sc.routeGroupSpec.LBAlgorithm,
                                },
                        },
                        DefaultBackends: []rgv1.RouteGroupBackendReference{
                                {
                                        BackendName: sc.Name(),
                                        Weight:      100,
                                },
                        },
                        Routes: sc.routeGroupSpec.Routes,
                },
        }

        // validate not overlapping with main backend
        for _, backend := range sc.routeGroupSpec.AdditionalBackends {
                if backend.Name == sc.Name() {
                        return nil, fmt.Errorf("invalid additionalBackend '%s', overlaps with Stack name", backend.Name)
                }
                if backend.ServiceName == sc.Name() {
                        return nil, fmt.Errorf("invalid additionalBackend '%s', serviceName '%s' overlaps with Stack name", backend.Name, backend.ServiceName)
                }
                result.Spec.Backends = append(result.Spec.Backends, backend)
        }

        // sort backends to ensure have a consistent generated RoutGroup resource
        sort.Slice(result.Spec.Backends, func(i, j int) bool {
                return result.Spec.Backends[i].Name < result.Spec.Backends[j].Name
        })

        // insert annotations
        result.Annotations = mergeLabels(result.Annotations, sc.routeGroupSpec.GetAnnotations())

        return result, nil
}

func (sc *StackContainer) GenerateStackStatus() *zv1.StackStatus {
        prescaling := zv1.PrescalingStatus{}
        if sc.prescalingActive {
                prescaling = zv1.PrescalingStatus{
                        Active:               sc.prescalingActive,
                        Replicas:             sc.prescalingReplicas,
                        DesiredTrafficWeight: sc.prescalingDesiredTrafficWeight,
                        LastTrafficIncrease:  wrapTime(sc.prescalingLastTrafficIncrease),
                }
        }
        return &zv1.StackStatus{
                ActualTrafficWeight:  sc.actualTrafficWeight,
                DesiredTrafficWeight: sc.desiredTrafficWeight,
                Replicas:             sc.createdReplicas,
                ReadyReplicas:        sc.readyReplicas,
                UpdatedReplicas:      sc.updatedReplicas,
                DesiredReplicas:      sc.deploymentReplicas,
                Prescaling:           prescaling,
                NoTrafficSince:       wrapTime(sc.noTrafficSince),
                LabelSelector:        labels.Set(sc.selector()).String(),
        }
}

1	package core
2
3	import (
4	"fmt"
5	"sort"
6	"strconv"
7	"strings"
8
9	log "github.com/sirupsen/logrus"
10	rgv1 "github.com/szuecs/routegroup-client/apis/zalando.org/v1"
11	zv1 "github.com/zalando-incubator/stackset-controller/pkg/apis/zalando.org/v1"
12	appsv1 "k8s.io/api/apps/v1"
13	autoscaling "k8s.io/api/autoscaling/v2"
14	v1 "k8s.io/api/core/v1"
15	networking "k8s.io/api/networking/v1"
16	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
17	"k8s.io/apimachinery/pkg/labels"
18	"k8s.io/apimachinery/pkg/util/intstr"
19	"k8s.io/apimachinery/pkg/util/sets"
20	)
21
22	const (
23	apiVersionAppsV1 = "apps/v1"
24	kindDeployment = "Deployment"
25	)
26
27	type ingressOrRouteGroupSpec interface {
28	GetAnnotations() map[string]string
29	GetHosts() []string
30	}
31
32	var (
33	// set implementation with 0 Byte value
34	selectorLabels = map[string]struct{}{
35	StacksetHeritageLabelKey: {},
36	StackVersionLabelKey: {},
37	}
38
39	// PathTypeImplementationSpecific is the used implementation path type
40	// for k8s.io/api/networking/v1.HTTPIngressPath resources.
41	PathTypeImplementationSpecific = networking.PathTypeImplementationSpecific
42	)
43
44	func mapCopy(m map[string]string) map[string]string {	1✔
45	newMap := map[string]string{}	1✔
46	for k, v := range m {	2✔
47	newMap[k] = v	1✔
48	}	1✔
49	return newMap	1✔
50	}
51
52	// limitLabels returns a limited set of labels based on the validKeys.
53	func limitLabels(labels map[string]string, validKeys map[string]struct{}) map[string]string {	1✔
54	newLabels := make(map[string]string, len(labels))	1✔
55	for k, v := range labels {	2✔
56	if _, ok := validKeys[k]; ok {	2✔
57	newLabels[k] = v	1✔
58	}	1✔
59	}
60	return newLabels	1✔
61	}
62
63	// templateObjectMetaInjectLabels injects labels into a pod template spec.
64	func objectMetaInjectLabels(objectMeta metav1.ObjectMeta, labels map[string]string) metav1.ObjectMeta {	1✔
65	if objectMeta.Labels == nil {	2✔
66	objectMeta.Labels = map[string]string{}	1✔
67	}	1✔
68	for key, value := range labels {	2✔
69	if _, ok := objectMeta.Labels[key]; !ok {	2✔
70	objectMeta.Labels[key] = value	1✔
71	}	1✔
72	}
73	return objectMeta	1✔
74	}
75
76	func (sc *StackContainer) resourceMeta() metav1.ObjectMeta {	1✔
77	resourceLabels := mapCopy(sc.Stack.Labels)	1✔
78		1✔
79	return metav1.ObjectMeta{	1✔
80	Name: sc.Name(),	1✔
81	Namespace: sc.Namespace(),	1✔
82	Annotations: map[string]string{	1✔
83	stackGenerationAnnotationKey: strconv.FormatInt(sc.Stack.Generation, 10),	1✔
84	},	1✔
85	Labels: resourceLabels,	1✔
86	OwnerReferences: []metav1.OwnerReference{	1✔
87	{	1✔
88	APIVersion: APIVersion,	1✔
89	Kind: KindStack,	1✔
90	Name: sc.Name(),	1✔
91	UID: sc.Stack.UID,	1✔
92	},	1✔
93	},	1✔
94	}	1✔
95	}	1✔
96
97	// getServicePorts gets the service ports to be used for the stack service.
98	func getServicePorts(stackSpec zv1.StackSpecInternal, backendPort *intstr.IntOrString) ([]v1.ServicePort, error) {	1✔
99	var servicePorts []v1.ServicePort	1✔
100	if stackSpec.StackSpec.Service == nil \|\|	1✔
101	len(stackSpec.StackSpec.Service.Ports) == 0 {	2✔
102		1✔
103	servicePorts = servicePortsFromContainers(	1✔
104	stackSpec.StackSpec.PodTemplate.Spec.Containers,	1✔
105	)	1✔
106	} else {	2✔
107	servicePorts = stackSpec.StackSpec.Service.Ports	1✔
108	}	1✔
109
110	// validate that one port in the list maps to the backendPort.
111	if backendPort != nil {	2✔
112	for _, port := range servicePorts {	2✔
113	switch backendPort.Type {	1✔
114	case intstr.Int:	1✔
115	if port.Port == backendPort.IntVal {	2✔
116	return servicePorts, nil	1✔
117	}	1✔
118	case intstr.String:	1✔
119	if port.Name == backendPort.StrVal {	2✔
120	return servicePorts, nil	1✔
121	}	1✔
122	}
123	}
124
125	return nil, fmt.Errorf("no service ports matching backendPort '%s'", backendPort.String())	1✔
126	}
127
128	return servicePorts, nil	1✔
129	}
130
131	// servicePortsFromTemplate gets service port from pod template.
132	func servicePortsFromContainers(containers []v1.Container) []v1.ServicePort {	1✔
133	ports := make([]v1.ServicePort, 0)	1✔
134	for i, container := range containers {	2✔
135	for j, port := range container.Ports {	2✔
136	name := fmt.Sprintf("port-%d-%d", i, j)	1✔
137	if port.Name != "" {	2✔
138	name = port.Name	1✔
139	}	1✔
140	servicePort := v1.ServicePort{	1✔
141	Name: name,	1✔
142	Protocol: port.Protocol,	1✔
143	Port: port.ContainerPort,	1✔
144	TargetPort: intstr.FromInt(int(port.ContainerPort)),	1✔
145	}	1✔
146	// set default protocol if not specified	1✔
147	if servicePort.Protocol == "" {	2✔
148	servicePort.Protocol = v1.ProtocolTCP	1✔
149	}	1✔
150	ports = append(ports, servicePort)	1✔
151	}
152	}
153	return ports	1✔
154	}
155
156	func (sc *StackContainer) selector() map[string]string {	1✔
157	return limitLabels(sc.Stack.Labels, selectorLabels)	1✔
158	}	1✔
159
160	func (sc StackContainer) GenerateDeployment() appsv1.Deployment {	1✔
161	stack := sc.Stack	1✔
162		1✔
163	desiredReplicas := sc.stackReplicas	1✔
164	if sc.prescalingActive {	2✔
165	desiredReplicas = sc.prescalingReplicas	1✔
166	}	1✔
167
168	var updatedReplicas *int32	1✔
169		1✔
170	if desiredReplicas != 0 && !sc.ScaledDown() {	2✔
171	// Stack scaled up, rescale the deployment if it's at 0 replicas, or if HPA is unused and we don't run autoscaling	1✔
172	if sc.deploymentReplicas == 0 \|\| (!sc.IsAutoscaled() && desiredReplicas != sc.deploymentReplicas) {	2✔
173	updatedReplicas = wrapReplicas(desiredReplicas)	1✔
174	}	1✔
175	} else {	1✔
176	// Stack scaled down (manually or because it doesn't receive traffic), check if we need to scale down the deployment	1✔
177	if sc.deploymentReplicas != 0 {	2✔
178	updatedReplicas = wrapReplicas(0)	1✔
179	}	1✔
180	}
181
182	if updatedReplicas == nil {	2✔
183	updatedReplicas = wrapReplicas(sc.deploymentReplicas)	1✔
184	}	1✔
185
186	var strategy *appsv1.DeploymentStrategy	1✔
187	if stack.Spec.StackSpec.Strategy != nil {	2✔
188	strategy = stack.Spec.StackSpec.Strategy.DeepCopy()	1✔
189	}	1✔
190
191	embeddedCopy := stack.Spec.StackSpec.PodTemplate.EmbeddedObjectMeta.DeepCopy()	1✔
192		1✔
193	templateObjectMeta := metav1.ObjectMeta{	1✔
194	Annotations: embeddedCopy.Annotations,	1✔
195	Labels: embeddedCopy.Labels,	1✔
196	}	1✔
197		1✔
198	deployment := &appsv1.Deployment{	1✔
199	ObjectMeta: sc.resourceMeta(),	1✔
200	Spec: appsv1.DeploymentSpec{	1✔
201	Replicas: updatedReplicas,	1✔
202	MinReadySeconds: sc.Stack.Spec.StackSpec.MinReadySeconds,	1✔
203	Selector: &metav1.LabelSelector{	1✔
204	MatchLabels: sc.selector(),	1✔
205	},	1✔
206	Template: v1.PodTemplateSpec{	1✔
207	ObjectMeta: objectMetaInjectLabels(templateObjectMeta, stack.Labels),	1✔
208	Spec: *stack.Spec.StackSpec.PodTemplate.Spec.DeepCopy(),	1✔
209	},	1✔
210	},	1✔
211	}	1✔
212	if strategy != nil {	2✔
213	deployment.Spec.Strategy = *strategy	1✔
214	}	1✔
215	return deployment	1✔
216	}
217
218	func (sc StackContainer) GenerateHPA() (autoscaling.HorizontalPodAutoscaler, error) {	1✔
219	autoscalerSpec := sc.Stack.Spec.StackSpec.Autoscaler	1✔
220	hpaSpec := sc.Stack.Spec.StackSpec.HorizontalPodAutoscaler	1✔
221	trafficWeight := sc.actualTrafficWeight	1✔
222		1✔
223	if autoscalerSpec == nil && hpaSpec == nil {	1✔
224	return nil, nil	×
225	}	×
226
227	result := &autoscaling.HorizontalPodAutoscaler{	1✔
228	ObjectMeta: sc.resourceMeta(),	1✔
229	TypeMeta: metav1.TypeMeta{	1✔
230	Kind: "HorizontalPodAutoscaler",	1✔
231	APIVersion: "autoscaling/v2",	1✔
232	},	1✔
233	Spec: autoscaling.HorizontalPodAutoscalerSpec{	1✔
234	ScaleTargetRef: autoscaling.CrossVersionObjectReference{	1✔
235	APIVersion: apiVersionAppsV1,	1✔
236	Kind: kindDeployment,	1✔
237	Name: sc.Name(),	1✔
238	},	1✔
239	},	1✔
240	}	1✔
241		1✔
242	if autoscalerSpec != nil {	2✔
243	result.Spec.MinReplicas = autoscalerSpec.MinReplicas	1✔
244	result.Spec.MaxReplicas = autoscalerSpec.MaxReplicas	1✔
245		1✔
246	metrics, annotations, err := convertCustomMetrics(sc.stacksetName, sc.Name(), sc.Namespace(), autoscalerSpec.Metrics, trafficWeight)	1✔
247	if err != nil {	1✔
248	return nil, err	×
249	}	×
250	result.Spec.Metrics = metrics	1✔
251	result.Annotations = mergeLabels(result.Annotations, annotations)	1✔
252	result.Spec.Behavior = autoscalerSpec.Behavior	1✔
253	} else {	1✔
254	result.Spec.MinReplicas = hpaSpec.MinReplicas	1✔
255	result.Spec.MaxReplicas = hpaSpec.MaxReplicas	1✔
256	metrics := make([]autoscaling.MetricSpec, 0, len(hpaSpec.Metrics))	1✔
257	for _, m := range hpaSpec.Metrics {	2✔
258	m := m	1✔
259	metric := autoscaling.MetricSpec{}	1✔
260	err := Convert_v2beta1_MetricSpec_To_autoscaling_MetricSpec(&m, &metric, nil)	1✔
261	if err != nil {	1✔
262	return nil, err	×
263	}	×
264	metrics = append(metrics, metric)	1✔
265	}
266	result.Spec.Metrics = metrics	1✔
267	result.Spec.Behavior = hpaSpec.Behavior	1✔
268	}
269
270	// If prescaling is enabled, ensure we have at least `precalingReplicas` pods
271	if sc.prescalingActive && (result.Spec.MinReplicas == nil \|\| *result.Spec.MinReplicas < sc.prescalingReplicas) {	1✔
272	pr := sc.prescalingReplicas	×
273	result.Spec.MinReplicas = &pr	×
274	}	×
275
276	return result, nil	1✔
277	}
278
279	func (sc StackContainer) GenerateService() (v1.Service, error) {	1✔
280	// get service ports to be used for the service	1✔
281	var backendPort *intstr.IntOrString	1✔
282	// Ingress or external managed Ingress	1✔
283	if sc.HasBackendPort() {	1✔
284	backendPort = sc.backendPort	×
285	}	×
286
287	servicePorts, err := getServicePorts(sc.Stack.Spec, backendPort)	1✔
288	if err != nil {	1✔
289	return nil, err	×
290	}	×
291
292	metaObj := sc.resourceMeta()	1✔
293	stackSpec := sc.Stack.Spec	1✔
294	if stackSpec.StackSpec.Service != nil {	2✔
295	metaObj.Annotations = mergeLabels(	1✔
296	metaObj.Annotations,	1✔
297	stackSpec.StackSpec.Service.Annotations,	1✔
298	)	1✔
299	}	1✔
300	return &v1.Service{	1✔
301	ObjectMeta: metaObj,	1✔
302	Spec: v1.ServiceSpec{	1✔
303	Selector: sc.selector(),	1✔
304	Type: v1.ServiceTypeClusterIP,	1✔
305	Ports: servicePorts,	1✔
306	},	1✔
307	}, nil	1✔
308	}
309
310	func (sc *StackContainer) stackHostnames(spec ingressOrRouteGroupSpec) ([]string, error) {	1✔
311	result := sets.NewString()	1✔
312		1✔
313	// Old-style autogenerated hostnames	1✔
314	for _, host := range spec.GetHosts() {	2✔
315	for _, domain := range sc.clusterDomains {	2✔
316	if strings.HasSuffix(host, domain) {	2✔
317	result.Insert(fmt.Sprintf("%s.%s", sc.Name(), domain))	1✔
318	} else {	2✔
319	log.Debugf("Ingress host: %s suffix did not match cluster-domain %s", host, domain)	1✔
320	}	1✔
321	}
322	}
323
324	return result.List(), nil	1✔
325	}
326
327	func (sc StackContainer) GenerateIngress() (networking.Ingress, error) {	1✔
328	ingressSpec := sc.Stack.Spec.Ingress	1✔
329	if ingressSpec == nil {	2✔
330	// fallback to parent StackSet ingress spec, for backward compatibility	1✔
331	ingressSpec = sc.ingressSpec	1✔
332	}	1✔
333
334	if !sc.HasBackendPort() \|\| ingressSpec == nil {	2✔
335	return nil, nil	1✔
336	}	1✔
337
338	hostnames, err := sc.stackHostnames(ingressSpec)	1✔
339	if err != nil {	1✔
340	return nil, err	×
341	}	×
342	if len(hostnames) == 0 {	1✔
343	return nil, nil	×
344	}	×
345
346	rules := make([]networking.IngressRule, 0, len(hostnames))	1✔
347	for _, hostname := range hostnames {	2✔
348	rules = append(rules, networking.IngressRule{	1✔
349	IngressRuleValue: networking.IngressRuleValue{	1✔
350	HTTP: &networking.HTTPIngressRuleValue{	1✔
351	Paths: []networking.HTTPIngressPath{	1✔
352	{	1✔
353	PathType: &PathTypeImplementationSpecific,	1✔
354	Path: ingressSpec.Path,	1✔
355	Backend: networking.IngressBackend{	1✔
356	Service: &networking.IngressServiceBackend{	1✔
357	Name: sc.Name(),	1✔
358	Port: networking.ServiceBackendPort{	1✔
359	Name: sc.backendPort.StrVal,	1✔
360	Number: sc.backendPort.IntVal,	1✔
361	},	1✔
362	},	1✔
363	},	1✔
364	},	1✔
365	},	1✔
366	},	1✔
367	},	1✔
368	Host: hostname,	1✔
369	})	1✔
370	}	1✔
371
372	// sort rules by hostname for a stable order
373	sort.Slice(rules, func(i, j int) bool {	1✔
374	return rules[i].Host < rules[j].Host	×
375	})	×
376
377	result := &networking.Ingress{	1✔
378	ObjectMeta: sc.resourceMeta(),	1✔
379	Spec: networking.IngressSpec{	1✔
380	Rules: rules,	1✔
381	},	1✔
382	}	1✔
383		1✔
384	// insert annotations	1✔
385	result.Annotations = mergeLabels(result.Annotations, sc.ingressSpec.GetAnnotations())	1✔
386	return result, nil	1✔
387	}
388
389	func (sc StackContainer) GenerateRouteGroup() (rgv1.RouteGroup, error) {	1✔
390	if !sc.HasBackendPort() \|\| sc.routeGroupSpec == nil {	2✔
391	return nil, nil	1✔
392	}	1✔
393
394	hostnames, err := sc.stackHostnames(sc.routeGroupSpec)	1✔
395	if err != nil {	1✔
396	return nil, err	×
397	}	×
398	if len(hostnames) == 0 {	1✔
399	return nil, nil	×
400	}	×
401
402	result := &rgv1.RouteGroup{	1✔
403	ObjectMeta: sc.resourceMeta(),	1✔
404	Spec: rgv1.RouteGroupSpec{	1✔
405	Hosts: hostnames,	1✔
406	Backends: []rgv1.RouteGroupBackend{	1✔
407	{	1✔
408	Name: sc.Name(),	1✔
409	Type: rgv1.ServiceRouteGroupBackend,	1✔
410	ServiceName: sc.Name(),	1✔
411	ServicePort: sc.backendPort.IntValue(),	1✔
412	Algorithm: sc.routeGroupSpec.LBAlgorithm,	1✔
413	},	1✔
414	},	1✔
415	DefaultBackends: []rgv1.RouteGroupBackendReference{	1✔
416	{	1✔
417	BackendName: sc.Name(),	1✔
418	Weight: 100,	1✔
419	},	1✔
420	},	1✔
421	Routes: sc.routeGroupSpec.Routes,	1✔
422	},	1✔
423	}	1✔
424		1✔
425	// validate not overlapping with main backend	1✔
426	for _, backend := range sc.routeGroupSpec.AdditionalBackends {	1✔
427	if backend.Name == sc.Name() {	×
428	return nil, fmt.Errorf("invalid additionalBackend '%s', overlaps with Stack name", backend.Name)	×
429	}	×
430	if backend.ServiceName == sc.Name() {	×
431	return nil, fmt.Errorf("invalid additionalBackend '%s', serviceName '%s' overlaps with Stack name", backend.Name, backend.ServiceName)	×
432	}	×
433	result.Spec.Backends = append(result.Spec.Backends, backend)	×
434	}
435
436	// sort backends to ensure have a consistent generated RoutGroup resource
437	sort.Slice(result.Spec.Backends, func(i, j int) bool {	1✔
438	return result.Spec.Backends[i].Name < result.Spec.Backends[j].Name	×
439	})	×
440
441	// insert annotations
442	result.Annotations = mergeLabels(result.Annotations, sc.routeGroupSpec.GetAnnotations())	1✔
443		1✔
444	return result, nil	1✔
445	}
446
447	func (sc StackContainer) GenerateStackStatus() zv1.StackStatus {	1✔
448	prescaling := zv1.PrescalingStatus{}	1✔
449	if sc.prescalingActive {	2✔
450	prescaling = zv1.PrescalingStatus{	1✔
451	Active: sc.prescalingActive,	1✔
452	Replicas: sc.prescalingReplicas,	1✔
453	DesiredTrafficWeight: sc.prescalingDesiredTrafficWeight,	1✔
454	LastTrafficIncrease: wrapTime(sc.prescalingLastTrafficIncrease),	1✔
455	}	1✔
456	}	1✔
457	return &zv1.StackStatus{	1✔
458	ActualTrafficWeight: sc.actualTrafficWeight,	1✔
459	DesiredTrafficWeight: sc.desiredTrafficWeight,	1✔
460	Replicas: sc.createdReplicas,	1✔
461	ReadyReplicas: sc.readyReplicas,	1✔
462	UpdatedReplicas: sc.updatedReplicas,	1✔
463	DesiredReplicas: sc.deploymentReplicas,	1✔
464	Prescaling: prescaling,	1✔
465	NoTrafficSince: wrapTime(sc.noTrafficSince),	1✔
466	LabelSelector: labels.Set(sc.selector()).String(),	1✔
467	}	1✔
468	}

zalando-incubator / stackset-controller / 5968491960

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