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special.fy
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// Copyright (c) 2022 Alibaba Group Holding Ltd. | ||
// | ||
// 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. | ||
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package annotations | ||
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import ( | ||
networking "istio.io/api/networking/v1alpha3" | ||
"istio.io/istio/pilot/pkg/util/sets" | ||
listersv1 "k8s.io/client-go/listers/core/v1" | ||
) | ||
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type GlobalContext struct { | ||
// secret key is cluster/namespace/name | ||
WatchedSecrets sets.Set | ||
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ClusterSecretLister map[string]listersv1.SecretLister | ||
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ClusterServiceList map[string]listersv1.ServiceLister | ||
} | ||
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type Meta struct { | ||
Namespace string | ||
Name string | ||
RawClusterId string | ||
ClusterId string | ||
} | ||
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// Ingress defines the valid annotations present in one NGINX Ingress. | ||
type Ingress struct { | ||
Meta | ||
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Cors *CorsConfig | ||
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Rewrite *RewriteConfig | ||
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Redirect *RedirectConfig | ||
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UpstreamTLS *UpstreamTLSConfig | ||
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DownstreamTLS *DownstreamTLSConfig | ||
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Canary *CanaryConfig | ||
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IPAccessControl *IPAccessControlConfig | ||
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HeaderControl *HeaderControlConfig | ||
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Timeout *TimeoutConfig | ||
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Retry *RetryConfig | ||
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LoadBalance *LoadBalanceConfig | ||
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localRateLimit *localRateLimitConfig | ||
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Fallback *FallbackConfig | ||
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Auth *AuthConfig | ||
} | ||
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func (i *Ingress) NeedRegexMatch() bool { | ||
if i.Rewrite == nil { | ||
return false | ||
} | ||
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return i.Rewrite.RewriteTarget != "" || i.Rewrite.UseRegex | ||
} | ||
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func (i *Ingress) IsCanary() bool { | ||
if i.Canary == nil { | ||
return false | ||
} | ||
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return i.Canary.Enabled | ||
} | ||
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// CanaryKind return byHeader, byWeight | ||
func (i *Ingress) CanaryKind() (bool, bool) { | ||
if !i.IsCanary() { | ||
return false, false | ||
} | ||
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// first header, cookie | ||
if i.Canary.Header != "" || i.Canary.Cookie != "" { | ||
return true, false | ||
} | ||
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// then weight | ||
return false, true | ||
} | ||
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func (i *Ingress) NeedTrafficPolicy() bool { | ||
return i.UpstreamTLS != nil || | ||
i.LoadBalance != nil | ||
} | ||
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func (i *Ingress) MergeHostIPAccessControlIfNotExist(ac *IPAccessControlConfig) { | ||
if i.IPAccessControl != nil && i.IPAccessControl.Domain != nil { | ||
return | ||
} | ||
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if ac != nil && ac.Domain != nil { | ||
if i.IPAccessControl == nil { | ||
i.IPAccessControl = &IPAccessControlConfig{ | ||
Domain: ac.Domain, | ||
} | ||
} else { | ||
i.IPAccessControl.Domain = ac.Domain | ||
} | ||
} | ||
} | ||
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type AnnotationHandler interface { | ||
Parser | ||
GatewayHandler | ||
VirtualServiceHandler | ||
RouteHandler | ||
TrafficPolicyHandler | ||
} | ||
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type AnnotationHandlerManager struct { | ||
parsers []Parser | ||
gatewayHandlers []GatewayHandler | ||
virtualServiceHandlers []VirtualServiceHandler | ||
routeHandlers []RouteHandler | ||
trafficPolicyHandlers []TrafficPolicyHandler | ||
} | ||
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func NewAnnotationHandlerManager() AnnotationHandler { | ||
return &AnnotationHandlerManager{ | ||
parsers: []Parser{ | ||
canary{}, | ||
cors{}, | ||
downstreamTLS{}, | ||
redirect{}, | ||
rewrite{}, | ||
upstreamTLS{}, | ||
ipAccessControl{}, | ||
headerControl{}, | ||
timeout{}, | ||
retry{}, | ||
loadBalance{}, | ||
localRateLimit{}, | ||
fallback{}, | ||
auth{}, | ||
}, | ||
gatewayHandlers: []GatewayHandler{ | ||
downstreamTLS{}, | ||
}, | ||
virtualServiceHandlers: []VirtualServiceHandler{ | ||
ipAccessControl{}, | ||
}, | ||
routeHandlers: []RouteHandler{ | ||
cors{}, | ||
redirect{}, | ||
rewrite{}, | ||
ipAccessControl{}, | ||
headerControl{}, | ||
timeout{}, | ||
retry{}, | ||
localRateLimit{}, | ||
fallback{}, | ||
}, | ||
trafficPolicyHandlers: []TrafficPolicyHandler{ | ||
upstreamTLS{}, | ||
loadBalance{}, | ||
}, | ||
} | ||
} | ||
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func (h *AnnotationHandlerManager) Parse(annotations Annotations, config *Ingress, globalContext *GlobalContext) error { | ||
for _, parser := range h.parsers { | ||
_ = parser.Parse(annotations, config, globalContext) | ||
} | ||
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return nil | ||
} | ||
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func (h *AnnotationHandlerManager) ApplyGateway(gateway *networking.Gateway, config *Ingress) { | ||
for _, handler := range h.gatewayHandlers { | ||
handler.ApplyGateway(gateway, config) | ||
} | ||
} | ||
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func (h *AnnotationHandlerManager) ApplyVirtualServiceHandler(virtualService *networking.VirtualService, config *Ingress) { | ||
for _, handler := range h.virtualServiceHandlers { | ||
handler.ApplyVirtualServiceHandler(virtualService, config) | ||
} | ||
} | ||
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func (h *AnnotationHandlerManager) ApplyRoute(route *networking.HTTPRoute, config *Ingress) { | ||
for _, handler := range h.routeHandlers { | ||
handler.ApplyRoute(route, config) | ||
} | ||
} | ||
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func (h *AnnotationHandlerManager) ApplyTrafficPolicy(trafficPolicy *networking.TrafficPolicy_PortTrafficPolicy, config *Ingress) { | ||
for _, handler := range h.trafficPolicyHandlers { | ||
handler.ApplyTrafficPolicy(trafficPolicy, config) | ||
} | ||
} |
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// Copyright (c) 2022 Alibaba Group Holding Ltd. | ||
// | ||
// 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. | ||
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package annotations | ||
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import "testing" | ||
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func TestNeedRegexMatch(t *testing.T) { | ||
testCases := []struct { | ||
input *Ingress | ||
expect bool | ||
}{ | ||
{ | ||
input: &Ingress{}, | ||
expect: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Rewrite: &RewriteConfig{}, | ||
}, | ||
expect: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Rewrite: &RewriteConfig{ | ||
RewriteTarget: "/test", | ||
}, | ||
}, | ||
expect: true, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Rewrite: &RewriteConfig{ | ||
UseRegex: true, | ||
}, | ||
}, | ||
expect: true, | ||
}, | ||
} | ||
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for _, testCase := range testCases { | ||
t.Run("", func(t *testing.T) { | ||
if testCase.input.NeedRegexMatch() != testCase.expect { | ||
t.Fatalf("Should be %t, but actual is %t", testCase.expect, testCase.input.NeedRegexMatch()) | ||
} | ||
}) | ||
} | ||
} | ||
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func TestIsCanary(t *testing.T) { | ||
testCases := []struct { | ||
input *Ingress | ||
expect bool | ||
}{ | ||
{ | ||
input: &Ingress{}, | ||
expect: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{}, | ||
}, | ||
expect: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{ | ||
Enabled: true, | ||
}, | ||
}, | ||
expect: true, | ||
}, | ||
} | ||
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for _, testCase := range testCases { | ||
t.Run("", func(t *testing.T) { | ||
if testCase.input.IsCanary() != testCase.expect { | ||
t.Fatalf("Should be %t, but actual is %t", testCase.expect, testCase.input.IsCanary()) | ||
} | ||
}) | ||
} | ||
} | ||
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func TestCanaryKind(t *testing.T) { | ||
testCases := []struct { | ||
input *Ingress | ||
byHeader bool | ||
byWeight bool | ||
}{ | ||
{ | ||
input: &Ingress{}, | ||
byHeader: false, | ||
byWeight: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{}, | ||
}, | ||
byHeader: false, | ||
byWeight: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{ | ||
Enabled: true, | ||
}, | ||
}, | ||
byHeader: false, | ||
byWeight: true, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{ | ||
Enabled: true, | ||
Header: "test", | ||
}, | ||
}, | ||
byHeader: true, | ||
byWeight: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{ | ||
Enabled: true, | ||
Cookie: "test", | ||
}, | ||
}, | ||
byHeader: true, | ||
byWeight: false, | ||
}, | ||
{ | ||
input: &Ingress{ | ||
Canary: &CanaryConfig{ | ||
Enabled: true, | ||
Weight: 2, | ||
}, | ||
}, | ||
byHeader: false, | ||
byWeight: true, | ||
}, | ||
} | ||
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for _, testCase := range testCases { | ||
t.Run("", func(t *testing.T) { | ||
byHeader, byWeight := testCase.input.CanaryKind() | ||
if byHeader != testCase.byHeader { | ||
t.Fatalf("Should be %t, but actual is %t", testCase.byHeader, byHeader) | ||
} | ||
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if byWeight != testCase.byWeight { | ||
t.Fatalf("Should be %t, but actual is %t", testCase.byWeight, byWeight) | ||
} | ||
}) | ||
} | ||
} | ||
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func TestNeedTrafficPolicy(t *testing.T) { | ||
config1 := &Ingress{} | ||
if config1.NeedTrafficPolicy() { | ||
t.Fatal("should be false") | ||
} | ||
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config2 := &Ingress{ | ||
UpstreamTLS: &UpstreamTLSConfig{ | ||
BackendProtocol: defaultBackendProtocol, | ||
}, | ||
} | ||
if !config2.NeedTrafficPolicy() { | ||
t.Fatal("should be true") | ||
} | ||
} |
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