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label_test.go
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label_test.go
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//go:build integ
// +build integ
// Copyright Istio 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 pilot
import (
"testing"
"istio.io/istio/pkg/test/framework"
"istio.io/istio/pkg/test/framework/components/echo"
"istio.io/istio/pkg/test/framework/components/echo/check"
"istio.io/istio/pkg/test/util/assert"
)
func TestLabelChanges(t *testing.T) {
framework.
NewTest(t).
Run(func(t framework.TestContext) {
cfg := `apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: {{.Destination}}
spec:
hosts:
- {{.Destination}}
http:
- route:
- destination:
host: {{.Destination}}
subset: my-subset
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: {{.Destination}}
spec:
host: {{.Destination}}
subsets:
- name: my-subset
labels:
subset: my-subset`
t.ConfigIstio().Eval(apps.Namespace.Name(), map[string]string{
"Destination": "a",
}, cfg).ApplyOrFail(t)
from := apps.B[0]
to := apps.A
// First, expect to fail. Subset does not match
_ = from.CallOrFail(t, echo.CallOptions{
To: to,
Port: echo.Port{
Name: "http",
},
Count: 1,
Check: check.BodyContains("no healthy upstream"),
})
lbls := map[string]string{"subset": "my-subset"}
assert.NoError(t, to[0].UpdateWorkloadLabel(lbls, nil))
t.Cleanup(func() {
assert.NoError(t, to[0].UpdateWorkloadLabel(nil, []string{"subset"}))
})
// Now it should succeed
_ = from.CallOrFail(t, echo.CallOptions{
To: to,
Port: echo.Port{
Name: "http",
},
Count: 1,
Check: check.OK(),
})
})
}