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Implement Contour A/B testing

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This commit is contained in:
stefanprodan
2019-12-19 12:02:20 +02:00
parent c066a9163b
commit ae63b01373
1 changed files with 116 additions and 0 deletions
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pkg/router/contour.go
+116
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@@ -54,6 +54,47 @@ func (cr *ContourRouter) Reconcile(canary *flaggerv1.Canary) error {
},
}
if len(canary.Spec.CanaryAnalysis.Match) > 0 {
newSpec = contourv1.HTTPProxySpec{
Routes: []contourv1.Route{
{
Conditions: cr.makeConditions(canary),
Services: []contourv1.Service{
{
Name: primaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(100),
},
{
Name: canaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(0),
},
},
},
{
Conditions: []contourv1.Condition{
{
Prefix: "/",
},
},
Services: []contourv1.Service{
{
Name: primaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(100),
},
{
Name: canaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(0),
},
},
},
},
}
}
proxy, err := cr.contourClient.ProjectcontourV1().HTTPProxies(canary.Namespace).Get(targetName, metav1.GetOptions{})
if errors.IsNotFound(err) {
proxy = &contourv1.HTTPProxy{
@@ -193,9 +234,84 @@ func (cr *ContourRouter) SetRoutes(
},
}
if len(canary.Spec.CanaryAnalysis.Match) > 0 {
proxy.Spec = contourv1.HTTPProxySpec{
Routes: []contourv1.Route{
{
Conditions: cr.makeConditions(canary),
Services: []contourv1.Service{
{
Name: primaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(primaryWeight),
},
{
Name: canaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(canaryWeight),
},
},
},
{
Conditions: []contourv1.Condition{
{
Prefix: "/",
},
},
Services: []contourv1.Service{
{
Name: primaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(100),
},
{
Name: canaryName,
Port: int(canary.Spec.Service.Port),
Weight: uint32(0),
},
},
},
},
}
}
_, err = cr.contourClient.ProjectcontourV1().HTTPProxies(canary.Namespace).Update(proxy)
if err != nil {
return fmt.Errorf("HTTPProxy %s.%s update error %v", targetName, canary.Namespace, err)
}
return nil
}
func (cr *ContourRouter) makeConditions(canary *flaggerv1.Canary) []contourv1.Condition {
list := []contourv1.Condition{
{
Prefix: "/",
},
}
if len(canary.Spec.CanaryAnalysis.Match) > 0 {
for _, match := range canary.Spec.CanaryAnalysis.Match {
for s, stringMatch := range match.Headers {
h := &contourv1.HeaderCondition{
Name: s,
Exact: stringMatch.Exact,
}
if stringMatch.Suffix != "" {
h = &contourv1.HeaderCondition{
Name: s,
Contains: stringMatch.Suffix,
}
}
if stringMatch.Prefix != "" {
h = &contourv1.HeaderCondition{
Name: s,
Contains: stringMatch.Prefix,
}
}
list = append(list, contourv1.Condition{Header: h})
}
}
}
return list
}