update unit test for PR #200
Signed-off-by: yunbo <yunbo10124scut@gmail.com>
This commit is contained in:
yunbo
parent
0ff23f6636
commit
748b1ad530
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@ -18,6 +18,7 @@ package trafficrouting
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import (
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import (
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"context"
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"context"
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"encoding/json"
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"fmt"
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"fmt"
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"reflect"
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"reflect"
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"testing"
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"testing"
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@ -32,8 +33,10 @@ import (
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corev1 "k8s.io/api/core/v1"
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corev1 "k8s.io/api/core/v1"
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netv1 "k8s.io/api/networking/v1"
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netv1 "k8s.io/api/networking/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/apimachinery/pkg/util/intstr"
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clientgoscheme "k8s.io/client-go/kubernetes/scheme"
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clientgoscheme "k8s.io/client-go/kubernetes/scheme"
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utilpointer "k8s.io/utils/pointer"
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utilpointer "k8s.io/utils/pointer"
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@ -180,6 +183,92 @@ var (
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},
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},
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}
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}
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demoIstioRollout = &v1beta1.Rollout{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rollout-demo",
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Labels: map[string]string{},
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Annotations: map[string]string{
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util.RolloutHashAnnotation: "rollout-hash-v1",
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},
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},
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Spec: v1beta1.RolloutSpec{
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WorkloadRef: v1beta1.ObjectRef{
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APIVersion: "apps/v1",
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Kind: "Deployment",
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Name: "echoserver",
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},
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Strategy: v1beta1.RolloutStrategy{
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Canary: &v1beta1.CanaryStrategy{
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DisableGenerateCanaryService: false,
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Steps: []v1beta1.CanaryStep{
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{
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TrafficRoutingStrategy: v1beta1.TrafficRoutingStrategy{
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Traffic: utilpointer.String("5%"),
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},
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Replicas: &intstr.IntOrString{IntVal: 1},
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},
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{
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TrafficRoutingStrategy: v1beta1.TrafficRoutingStrategy{
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Traffic: utilpointer.String("20%"),
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},
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Replicas: &intstr.IntOrString{IntVal: 2},
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},
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{
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TrafficRoutingStrategy: v1beta1.TrafficRoutingStrategy{
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Traffic: utilpointer.String("60%"),
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},
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Replicas: &intstr.IntOrString{IntVal: 6},
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},
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{
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TrafficRoutingStrategy: v1beta1.TrafficRoutingStrategy{
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Traffic: utilpointer.String("100%"),
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},
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Replicas: &intstr.IntOrString{IntVal: 10},
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},
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},
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TrafficRoutings: []v1beta1.TrafficRoutingRef{
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{
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Service: "echoserver",
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CustomNetworkRefs: []v1beta1.ObjectRef{
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{
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APIVersion: "networking.istio.io/v1alpha3",
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Kind: "VirtualService",
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Name: "echoserver",
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},
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{
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APIVersion: "networking.istio.io/v1alpha3",
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Kind: "DestinationRule",
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Name: "dr-demo",
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},
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},
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},
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},
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},
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},
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},
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Status: v1beta1.RolloutStatus{
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Phase: v1beta1.RolloutPhaseProgressing,
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CanaryStatus: &v1beta1.CanaryStatus{
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ObservedWorkloadGeneration: 1,
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RolloutHash: "rollout-hash-v1",
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ObservedRolloutID: "rollout-id-1",
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StableRevision: "podtemplatehash-v1",
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CanaryRevision: "revision-v2",
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CurrentStepIndex: 1,
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CurrentStepState: v1beta1.CanaryStepStateTrafficRouting,
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PodTemplateHash: "podtemplatehash-v2",
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LastUpdateTime: &metav1.Time{Time: time.Now()},
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},
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Conditions: []v1beta1.RolloutCondition{
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{
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Type: v1beta1.RolloutConditionProgressing,
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Reason: v1alpha1.ProgressingReasonInRolling,
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Status: corev1.ConditionFalse,
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},
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},
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},
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}
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demoConf = corev1.ConfigMap{
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demoConf = corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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ObjectMeta: metav1.ObjectMeta{
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Name: configuration.RolloutConfigurationName,
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Name: configuration.RolloutConfigurationName,
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@ -221,6 +310,207 @@ var (
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`,
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`,
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},
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},
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}
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}
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istioLuaConfig = corev1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Name: configuration.RolloutConfigurationName,
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Namespace: util.GetRolloutNamespace(),
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},
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Data: map[string]string{
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"lua.traffic.routing.VirtualService.networking.istio.io": `
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spec = obj.data.spec
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if obj.canaryWeight == -1 then
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obj.canaryWeight = 100
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obj.stableWeight = 0
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end
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function GetHost(destination)
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local host = destination.destination.host
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dot_position = string.find(host, ".", 1, true)
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if (dot_position) then
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host = string.sub(host, 1, dot_position - 1)
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end
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return host
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end
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-- find routes of VirtualService with stableService
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function GetRulesToPatch(spec, stableService, protocol)
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local matchedRoutes = {}
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if (spec[protocol] ~= nil) then
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for _, rule in ipairs(spec[protocol]) do
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-- skip routes contain matches
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if (rule.match == nil) then
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for _, route in ipairs(rule.route) do
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if GetHost(route) == stableService then
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table.insert(matchedRoutes, rule)
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end
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end
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end
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end
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end
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return matchedRoutes
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end
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function CalculateWeight(route, stableWeight, n)
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local weight
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if (route.weight) then
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weight = math.floor(route.weight * stableWeight / 100)
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else
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weight = math.floor(stableWeight / n)
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end
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return weight
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end
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-- generate routes with matches, insert a rule before other rules, only support http headers, cookies etc.
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function GenerateRoutesWithMatches(spec, matches, stableService, canaryService)
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for _, match in ipairs(matches) do
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local route = {}
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route["match"] = {}
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for key, value in pairs(match) do
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local vsMatch = {}
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vsMatch[key] = {}
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for _, rule in ipairs(value) do
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if rule["type"] == "RegularExpression" then
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matchType = "regex"
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elseif rule["type"] == "Exact" then
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matchType = "exact"
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elseif rule["type"] == "Prefix" then
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matchType = "prefix"
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end
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if key == "headers" then
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vsMatch[key][rule["name"]] = {}
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vsMatch[key][rule["name"]][matchType] = rule.value
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else
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vsMatch[key][matchType] = rule.value
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end
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end
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table.insert(route["match"], vsMatch)
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end
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route.route = {
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{
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destination = {}
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}
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}
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-- stableService == canaryService indicates DestinationRule exists and subset is set to be canary by default
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if stableService == canaryService then
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route.route[1].destination.host = stableService
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route.route[1].destination.subset = "canary"
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else
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route.route[1].destination.host = canaryService
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end
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table.insert(spec.http, 1, route)
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end
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end
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-- generate routes without matches, change every rule whose host is stableService
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function GenerateRoutes(spec, stableService, canaryService, stableWeight, canaryWeight, protocol)
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local matchedRules = GetRulesToPatch(spec, stableService, protocol)
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for _, rule in ipairs(matchedRules) do
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local canary
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if stableService ~= canaryService then
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canary = {
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destination = {
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host = canaryService,
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},
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weight = canaryWeight,
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}
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else
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canary = {
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destination = {
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host = stableService,
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subset = "canary",
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},
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weight = canaryWeight,
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}
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end
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-- incase there are multiple versions traffic already, do a for-loop
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for _, route in ipairs(rule.route) do
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-- update stable service weight
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route.weight = CalculateWeight(route, stableWeight, #rule.route)
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end
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table.insert(rule.route, canary)
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end
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end
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if (obj.matches and next(obj.matches) ~= nil)
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then
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GenerateRoutesWithMatches(spec, obj.matches, obj.stableService, obj.canaryService)
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else
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GenerateRoutes(spec, obj.stableService, obj.canaryService, obj.stableWeight, obj.canaryWeight, "http")
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GenerateRoutes(spec, obj.stableService, obj.canaryService, obj.stableWeight, obj.canaryWeight, "tcp")
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GenerateRoutes(spec, obj.stableService, obj.canaryService, obj.stableWeight, obj.canaryWeight, "tls")
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end
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return obj.data
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`,
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"lua.traffic.routing.DestinationRule.networking.istio.io": `
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local spec = obj.data.spec
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local canary = {}
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canary.labels = {}
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canary.name = "canary"
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local podLabelKey = "istio.service.tag"
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canary.labels[podLabelKey] = "gray"
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table.insert(spec.subsets, canary)
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return obj.data
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`,
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},
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}
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virtualServiceDemo = `
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{
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"apiVersion": "networking.istio.io/v1alpha3",
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"kind": "VirtualService",
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"metadata": {
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"name": "echoserver",
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"annotations": {
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"virtual": "test"
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}
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},
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"spec": {
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"hosts": [
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"echoserver.example.com"
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],
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"http": [
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{
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"route": [
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{
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"destination": {
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"host": "echoserver"
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}
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}
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]
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}
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]
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}
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}
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`
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destinationRuleDemo = `
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{
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"apiVersion": "networking.istio.io/v1alpha3",
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"kind": "DestinationRule",
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"metadata": {
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"name": "dr-demo"
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},
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"spec": {
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"host": "echoserver",
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"subsets": [
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{
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"labels": {
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"version": "base"
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},
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"name": "version-base"
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}
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],
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"trafficPolicy": {
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"loadBalancer": {
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"simple": "ROUND_ROBIN"
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}
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}
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}
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}
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`
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)
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)
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func init() {
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func init() {
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@ -445,6 +735,185 @@ func TestDoTrafficRouting(t *testing.T) {
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}
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}
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}
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}
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func TestDoTrafficRoutingWithIstio(t *testing.T) {
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const (
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OriginalSpecAnnotation = "rollouts.kruise.io/original-spec-configuration"
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)
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cases := []struct {
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name string
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getService func() []*corev1.Service
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getUnstructureds func() []*unstructured.Unstructured
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getRollout func() (*v1beta1.Rollout, *util.Workload)
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expectUnstructureds func() []*unstructured.Unstructured
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expectDone bool
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}{
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{
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name: "Test with DisableGenerateCanaryService: false",
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getService: func() []*corev1.Service {
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s1 := demoService.DeepCopy()
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s1.Spec.Selector[apps.DefaultDeploymentUniqueLabelKey] = "podtemplatehash-v1"
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return []*corev1.Service{s1}
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},
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getUnstructureds: func() []*unstructured.Unstructured {
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objects := make([]*unstructured.Unstructured, 0)
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u := &unstructured.Unstructured{}
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_ = u.UnmarshalJSON([]byte(virtualServiceDemo))
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u.SetAPIVersion("networking.istio.io/v1alpha3")
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objects = append(objects, u)
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u = &unstructured.Unstructured{}
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_ = u.UnmarshalJSON([]byte(destinationRuleDemo))
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u.SetAPIVersion("networking.istio.io/v1alpha3")
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objects = append(objects, u)
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return objects
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},
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getRollout: func() (*v1beta1.Rollout, *util.Workload) {
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obj := demoIstioRollout.DeepCopy()
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obj.Status.CanaryStatus.LastUpdateTime = &metav1.Time{Time: time.Now().Add(-10 * time.Second)}
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return obj, &util.Workload{RevisionLabelKey: apps.DefaultDeploymentUniqueLabelKey}
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},
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expectUnstructureds: func() []*unstructured.Unstructured {
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objects := make([]*unstructured.Unstructured, 0)
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u := &unstructured.Unstructured{}
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_ = u.UnmarshalJSON([]byte(virtualServiceDemo))
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annotations := map[string]string{
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OriginalSpecAnnotation: `{"spec":{"hosts":["echoserver.example.com"],"http":[{"route":[{"destination":{"host":"echoserver"}}]}]},"annotations":{"virtual":"test"}}`,
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"virtual": "test",
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}
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u.SetAnnotations(annotations)
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specStr := `{"hosts":["echoserver.example.com"],"http":[{"route":[{"destination":{"host":"echoserver"},"weight":95},{"destination":{"host":"echoserver-canary"},"weight":5}]}]}`
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var spec interface{}
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_ = json.Unmarshal([]byte(specStr), &spec)
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u.Object["spec"] = spec
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objects = append(objects, u)
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u = &unstructured.Unstructured{}
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_ = u.UnmarshalJSON([]byte(destinationRuleDemo))
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annotations = map[string]string{
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OriginalSpecAnnotation: `{"spec":{"host":"echoserver","subsets":[{"labels":{"version":"base"},"name":"version-base"}],"trafficPolicy":{"loadBalancer":{"simple":"ROUND_ROBIN"}}}}`,
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|
}
|
||||||
|
u.SetAnnotations(annotations)
|
||||||
|
specStr = `{"host":"echoserver","subsets":[{"labels":{"version":"base"},"name":"version-base"},{"labels":{"istio.service.tag":"gray"},"name":"canary"}],"trafficPolicy":{"loadBalancer":{"simple":"ROUND_ROBIN"}}}`
|
||||||
|
_ = json.Unmarshal([]byte(specStr), &spec)
|
||||||
|
u.Object["spec"] = spec
|
||||||
|
objects = append(objects, u)
|
||||||
|
return objects
|
||||||
|
},
|
||||||
|
// Rollout(/rollout-demo) is doing trafficRouting({"traffic":"5%"}), and wait a moment
|
||||||
|
expectDone: true,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
name: "Test with DisableGenerateCanaryService: true",
|
||||||
|
getService: func() []*corev1.Service {
|
||||||
|
s1 := demoService.DeepCopy()
|
||||||
|
s1.Spec.Selector[apps.DefaultDeploymentUniqueLabelKey] = "podtemplatehash-v1"
|
||||||
|
// s2 := demoService.DeepCopy()
|
||||||
|
// s2.Name = "echoserver-canary"
|
||||||
|
// s2.Spec.Selector[apps.DefaultDeploymentUniqueLabelKey] = "podtemplatehash-v2"
|
||||||
|
return []*corev1.Service{s1}
|
||||||
|
},
|
||||||
|
getUnstructureds: func() []*unstructured.Unstructured {
|
||||||
|
objects := make([]*unstructured.Unstructured, 0)
|
||||||
|
u := &unstructured.Unstructured{}
|
||||||
|
_ = u.UnmarshalJSON([]byte(virtualServiceDemo))
|
||||||
|
u.SetAPIVersion("networking.istio.io/v1alpha3")
|
||||||
|
objects = append(objects, u)
|
||||||
|
|
||||||
|
u = &unstructured.Unstructured{}
|
||||||
|
_ = u.UnmarshalJSON([]byte(destinationRuleDemo))
|
||||||
|
u.SetAPIVersion("networking.istio.io/v1alpha3")
|
||||||
|
objects = append(objects, u)
|
||||||
|
return objects
|
||||||
|
},
|
||||||
|
getRollout: func() (*v1beta1.Rollout, *util.Workload) {
|
||||||
|
obj := demoIstioRollout.DeepCopy()
|
||||||
|
// set DisableGenerateCanaryService as true
|
||||||
|
obj.Spec.Strategy.Canary.DisableGenerateCanaryService = true
|
||||||
|
obj.Status.CanaryStatus.LastUpdateTime = &metav1.Time{Time: time.Now().Add(-10 * time.Second)}
|
||||||
|
return obj, &util.Workload{RevisionLabelKey: apps.DefaultDeploymentUniqueLabelKey}
|
||||||
|
},
|
||||||
|
expectUnstructureds: func() []*unstructured.Unstructured {
|
||||||
|
objects := make([]*unstructured.Unstructured, 0)
|
||||||
|
u := &unstructured.Unstructured{}
|
||||||
|
_ = u.UnmarshalJSON([]byte(virtualServiceDemo))
|
||||||
|
annotations := map[string]string{
|
||||||
|
OriginalSpecAnnotation: `{"spec":{"hosts":["echoserver.example.com"],"http":[{"route":[{"destination":{"host":"echoserver"}}]}]},"annotations":{"virtual":"test"}}`,
|
||||||
|
"virtual": "test",
|
||||||
|
}
|
||||||
|
u.SetAnnotations(annotations)
|
||||||
|
specStr := `{"hosts":["echoserver.example.com"],"http":[{"route":[{"destination":{"host":"echoserver"},"weight":95},{"destination":{"host":"echoserver","subset":"canary"},"weight":5}]}]}`
|
||||||
|
var spec interface{}
|
||||||
|
_ = json.Unmarshal([]byte(specStr), &spec)
|
||||||
|
u.Object["spec"] = spec
|
||||||
|
objects = append(objects, u)
|
||||||
|
|
||||||
|
u = &unstructured.Unstructured{}
|
||||||
|
_ = u.UnmarshalJSON([]byte(destinationRuleDemo))
|
||||||
|
annotations = map[string]string{
|
||||||
|
OriginalSpecAnnotation: `{"spec":{"host":"echoserver","subsets":[{"labels":{"version":"base"},"name":"version-base"}],"trafficPolicy":{"loadBalancer":{"simple":"ROUND_ROBIN"}}}}`,
|
||||||
|
}
|
||||||
|
u.SetAnnotations(annotations)
|
||||||
|
specStr = `{"host":"echoserver","subsets":[{"labels":{"version":"base"},"name":"version-base"},{"labels":{"istio.service.tag":"gray"},"name":"canary"}],"trafficPolicy":{"loadBalancer":{"simple":"ROUND_ROBIN"}}}`
|
||||||
|
_ = json.Unmarshal([]byte(specStr), &spec)
|
||||||
|
u.Object["spec"] = spec
|
||||||
|
objects = append(objects, u)
|
||||||
|
return objects
|
||||||
|
},
|
||||||
|
// Rollout(/rollout-demo) is doing trafficRouting({"traffic":"5%"}), and wait a moment
|
||||||
|
expectDone: true,
|
||||||
|
},
|
||||||
|
}
|
||||||
|
for _, cs := range cases {
|
||||||
|
t.Run(cs.name, func(t *testing.T) {
|
||||||
|
ss := cs.getService()
|
||||||
|
client := fake.NewClientBuilder().WithScheme(scheme).WithObjects(ss[0], istioLuaConfig.DeepCopy()).Build()
|
||||||
|
for _, obj := range cs.getUnstructureds() {
|
||||||
|
err := client.Create(context.TODO(), obj)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("failed to create objects: %s", err.Error())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
rollout, workload := cs.getRollout()
|
||||||
|
newStatus := rollout.Status.DeepCopy()
|
||||||
|
currentStep := rollout.Spec.Strategy.Canary.Steps[newStatus.CanaryStatus.CurrentStepIndex-1]
|
||||||
|
c := &TrafficRoutingContext{
|
||||||
|
Key: fmt.Sprintf("Rollout(%s/%s)", rollout.Namespace, rollout.Name),
|
||||||
|
Namespace: rollout.Namespace,
|
||||||
|
ObjectRef: rollout.Spec.Strategy.Canary.TrafficRoutings,
|
||||||
|
Strategy: currentStep.TrafficRoutingStrategy,
|
||||||
|
OwnerRef: *metav1.NewControllerRef(rollout, v1beta1.SchemeGroupVersion.WithKind("Rollout")),
|
||||||
|
RevisionLabelKey: workload.RevisionLabelKey,
|
||||||
|
StableRevision: newStatus.CanaryStatus.StableRevision,
|
||||||
|
CanaryRevision: newStatus.CanaryStatus.PodTemplateHash,
|
||||||
|
LastUpdateTime: newStatus.CanaryStatus.LastUpdateTime,
|
||||||
|
DisableGenerateCanaryService: rollout.Spec.Strategy.Canary.DisableGenerateCanaryService,
|
||||||
|
}
|
||||||
|
manager := NewTrafficRoutingManager(client)
|
||||||
|
err := manager.InitializeTrafficRouting(c)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("InitializeTrafficRouting failed: %s", err)
|
||||||
|
}
|
||||||
|
_, err = manager.DoTrafficRouting(c)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("DoTrafficRouting failed: %s", err)
|
||||||
|
}
|
||||||
|
// may return false due to in the course of doing trafficRouting, let's do it again
|
||||||
|
done, err := manager.DoTrafficRouting(c)
|
||||||
|
if err != nil {
|
||||||
|
t.Fatalf("DoTrafficRouting failed: %s", err)
|
||||||
|
}
|
||||||
|
if cs.expectDone != done {
|
||||||
|
t.Fatalf("DoTrafficRouting expect(%v), but get(%v)", cs.expectDone, done)
|
||||||
|
}
|
||||||
|
unst := cs.expectUnstructureds()
|
||||||
|
for _, obj := range unst {
|
||||||
|
checkUnstructureEqual(client, t, obj)
|
||||||
|
}
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
func TestFinalisingTrafficRouting(t *testing.T) {
|
func TestFinalisingTrafficRouting(t *testing.T) {
|
||||||
cases := []struct {
|
cases := []struct {
|
||||||
name string
|
name string
|
||||||
|
|
@ -713,3 +1182,19 @@ func getEmptyObject(gvk schema.GroupVersionKind) client.Object {
|
||||||
}
|
}
|
||||||
return nil
|
return nil
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func checkUnstructureEqual(cli client.Client, t *testing.T, expect *unstructured.Unstructured) {
|
||||||
|
obj := &unstructured.Unstructured{}
|
||||||
|
obj.SetAPIVersion(expect.GetAPIVersion())
|
||||||
|
obj.SetKind(expect.GetKind())
|
||||||
|
if err := cli.Get(context.TODO(), types.NamespacedName{Namespace: expect.GetNamespace(), Name: expect.GetName()}, obj); err != nil {
|
||||||
|
t.Fatalf("Get object failed: %s", err.Error())
|
||||||
|
}
|
||||||
|
if !reflect.DeepEqual(obj.GetAnnotations(), expect.GetAnnotations()) {
|
||||||
|
fmt.Println(util.DumpJSON(obj.GetAnnotations()), util.DumpJSON(expect.GetAnnotations()))
|
||||||
|
t.Fatalf("expect(%s), but get(%s)", util.DumpJSON(expect.GetAnnotations()), util.DumpJSON(obj.GetAnnotations()))
|
||||||
|
}
|
||||||
|
if util.DumpJSON(expect.Object["spec"]) != util.DumpJSON(obj.Object["spec"]) {
|
||||||
|
t.Fatalf("expect(%s), but get(%s)", util.DumpJSON(expect.Object["spec"]), util.DumpJSON(obj.Object["spec"]))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue