mirror of https://github.com/istio/istio.io.git
fix formatting in mirroring task (#15446)
* fix formatting in mirroring task Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * fix linting issues Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * updated snips Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * add namespace label back Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * ugh Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * getting there ... Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * remove the ns label at the end of the test Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * Update content/en/docs/tasks/traffic-management/mirroring/index.md Co-authored-by: Michael <haifeng.yao@daocloud.io> * indent the tab sections Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * pr feedback Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> * typo fix --------- Signed-off-by: Peter Jausovec <peter.jausovec@solo.io> Co-authored-by: Michael <haifeng.yao@daocloud.io>
This commit is contained in:
Peter Jausovec
GitHub
parent
4971bb33a1
commit
e6ab3f286f
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@ -21,15 +21,13 @@ you will apply a rule to mirror a portion of traffic to `v2`.
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## Before you begin
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* Set up Istio by following the instructions in the
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[Installation guide](/docs/setup/).
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1. Set up Istio by following the [Installation guide](/docs/setup/).
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1. Start by deploying two versions of the [httpbin]({{< github_tree >}}/samples/httpbin) service that have access logging enabled:
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* Start by deploying two versions of the [httpbin]({{< github_tree >}}/samples/httpbin) service that have access logging enabled:
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**httpbin-v1:**
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1. Deploy `httpbin-v1`:
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{{< text bash >}}
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$ cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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$ kubectl create -f - <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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@ -56,10 +54,10 @@ you will apply a rule to mirror a portion of traffic to `v2`.
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EOF
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{{< /text >}}
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**httpbin-v2:**
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1. Deploy `httpbin-v2`:
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{{< text bash >}}
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$ cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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$ kubectl create -f - <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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@ -86,7 +84,7 @@ you will apply a rule to mirror a portion of traffic to `v2`.
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EOF
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{{< /text >}}
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**httpbin Kubernetes service:**
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1. Deploy the `httpbin` Kubernetes service:
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{{< text bash >}}
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$ kubectl create -f - <<EOF
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@ -106,12 +104,10 @@ you will apply a rule to mirror a portion of traffic to `v2`.
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EOF
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{{< /text >}}
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* Start the `sleep` service so you can use `curl` to provide load:
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**sleep service:**
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1. Deploy the `sleep` workload you'll use to send requests to the `httpbin` service:
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{{< text bash >}}
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$ cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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$ cat <<EOF | kubectl create -f -
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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@ -141,17 +137,17 @@ In this step, you will change that behavior so that all traffic goes to `v1`.
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1. Create a default route rule to route all traffic to `v1` of the service:
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{{< tabset category-name="config-api" >}}
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{{< tabset category-name="config-api" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: networking.istio.io/v1alpha3
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kind: VirtualService
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metadata:
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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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: httpbin
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spec:
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spec:
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hosts:
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- httpbin
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http:
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@ -160,12 +156,12 @@ spec:
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host: httpbin
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subset: v1
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weight: 100
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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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---
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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: httpbin
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spec:
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spec:
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host: httpbin
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subsets:
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- name: v1
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@ -174,44 +170,44 @@ spec:
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- name: v2
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labels:
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version: v2
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EOF
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{{< /text >}}
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EOF
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{{< /text >}}
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{{< /tab >}}
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{{< /tab >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: v1
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kind: Service
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metadata:
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: v1
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kind: Service
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metadata:
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name: httpbin-v1
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spec:
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spec:
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ports:
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- port: 80
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name: http
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selector:
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app: httpbin
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version: v1
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---
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apiVersion: v1
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kind: Service
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metadata:
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: httpbin-v2
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spec:
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spec:
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ports:
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- port: 80
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name: http
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selector:
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app: httpbin
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version: v2
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---
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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metadata:
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---
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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metadata:
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name: httpbin
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spec:
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spec:
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parentRefs:
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- group: ""
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kind: Service
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@ -221,18 +217,17 @@ spec:
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- backendRefs:
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- name: httpbin-v1
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port: 80
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EOF
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{{< /text >}}
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EOF
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{{< /text >}}
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{{< /tab >}}
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{{< /tab >}}
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{{< /tabset >}}
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{{< /tabset >}}
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2) Now, with all traffic directed to `httpbin:v1`, send a request to the service:
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1. Now, with all traffic directed to `httpbin:v1`, send a request to the service:
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{{< text bash json >}}
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$ export SLEEP_POD=$(kubectl get pod -l app=sleep -o jsonpath={.items..metadata.name})
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$ kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
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$ kubectl exec deploy/sleep -c sleep -- curl -sS http://httpbin:8000/headers
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{
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"headers": {
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"Accept": "*/*",
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@ -249,36 +244,33 @@ EOF
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}
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{{< /text >}}
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3) Check the logs for `v1` and `v2` of the `httpbin` pods. You should see access
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log entries for `v1` and none for `v2`:
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1. Check the logs from `httpbin-v1` and `httpbin-v2` pods. You should see access log entries for `v1` and none for `v2`:
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{{< text bash >}}
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$ export V1_POD=$(kubectl get pod -l app=httpbin,version=v1 -o jsonpath={.items..metadata.name})
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$ kubectl logs "$V1_POD" -c httpbin
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$ kubectl logs deploy/httpbin-v1 -c httpbin
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127.0.0.1 - - [07/Mar/2018:19:02:43 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
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{{< /text >}}
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{{< text bash >}}
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$ export V2_POD=$(kubectl get pod -l app=httpbin,version=v2 -o jsonpath={.items..metadata.name})
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$ kubectl logs "$V2_POD" -c httpbin
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$ kubectl logs deploy/httpbin-v2 -c httpbin
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<none>
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{{< /text >}}
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## Mirroring traffic to v2
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## Mirroring traffic to `httpbin-v2`
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1. Change the route rule to mirror traffic to v2:
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1. Change the route rule to mirror traffic to `httpbin-v2`:
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{{< tabset category-name="config-api" >}}
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{{< tabset category-name="config-api" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: networking.istio.io/v1alpha3
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kind: VirtualService
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metadata:
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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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: httpbin
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spec:
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spec:
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hosts:
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- httpbin
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http:
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@ -292,32 +284,32 @@ spec:
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subset: v2
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mirrorPercentage:
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value: 100.0
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EOF
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{{< /text >}}
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EOF
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{{< /text >}}
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This route rule sends 100% of the traffic to `v1`. The last stanza specifies
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that you want to mirror (i.e., also send) 100% of the same traffic to the
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`httpbin:v2` service. When traffic gets mirrored,
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the requests are sent to the mirrored service with their Host/Authority headers
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appended with `-shadow`. For example, `cluster-1` becomes `cluster-1-shadow`.
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This route rule sends 100% of the traffic to `v1`. The last stanza specifies
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that you want to mirror (i.e., also send) 100% of the same traffic to the
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`httpbin:v2` service. When traffic gets mirrored,
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the requests are sent to the mirrored service with their Host/Authority headers
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appended with `-shadow`. For example, `cluster-1` becomes `cluster-1-shadow`.
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Also, it is important to note that these requests are mirrored as "fire and
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forget", which means that the responses are discarded.
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Also, it is important to note that these requests are mirrored as "fire and
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forget", which means that the responses are discarded.
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You can use the `value` field under the `mirrorPercentage` field to mirror a fraction of the traffic,
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instead of mirroring all requests. If this field is absent, all traffic will be mirrored.
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You can use the `value` field under the `mirrorPercentage` field to mirror a fraction of the traffic,
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instead of mirroring all requests. If this field is absent, all traffic will be mirrored.
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{{< /tab >}}
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{{< /tab >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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metadata:
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{{< text bash >}}
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$ kubectl apply -f - <<EOF
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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metadata:
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name: httpbin
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spec:
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spec:
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parentRefs:
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- group: ""
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kind: Service
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@ -333,39 +325,39 @@ spec:
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backendRefs:
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- name: httpbin-v1
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port: 80
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EOF
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{{< /text >}}
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EOF
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{{< /text >}}
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This route rule sends 100% of the traffic to `v1`. The `RequestMirror` filter
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specifies that you want to mirror (i.e., also send) 100% of the same traffic to the
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`httpbin:v2` service. When traffic gets mirrored,
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the requests are sent to the mirrored service with their Host/Authority headers
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appended with `-shadow`. For example, `cluster-1` becomes `cluster-1-shadow`.
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This route rule sends 100% of the traffic to `v1`. The `RequestMirror` filter
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specifies that you want to mirror (i.e., also send) 100% of the same traffic to the
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`httpbin:v2` service. When traffic gets mirrored,
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the requests are sent to the mirrored service with their Host/Authority headers
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appended with `-shadow`. For example, `cluster-1` becomes `cluster-1-shadow`.
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Also, it is important to note that these requests are mirrored as "fire and
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forget", which means that the responses are discarded.
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Also, it is important to note that these requests are mirrored as "fire and
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forget", which means that the responses are discarded.
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{{< /tab >}}
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{{< /tab >}}
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{{< /tabset >}}
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{{< /tabset >}}
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2) Send in traffic:
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1. Send the traffic:
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{{< text bash >}}
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$ kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
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$ kubectl exec deploy/sleep -c sleep -- curl -sS http://httpbin:8000/headers
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{{< /text >}}
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Now, you should see access logging for both `v1` and `v2`. The access logs
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created in `v2` are the mirrored requests that are actually going to `v1`.
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{{< text bash >}}
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$ kubectl logs "$V1_POD" -c httpbin
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$ kubectl logs deploy/httpbin-v1 -c httpbin
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127.0.0.1 - - [07/Mar/2018:19:02:43 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
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127.0.0.1 - - [07/Mar/2018:19:26:44 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
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{{< /text >}}
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{{< text bash >}}
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$ kubectl logs "$V2_POD" -c httpbin
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$ kubectl logs deploy/httpbin-v2 -c httpbin
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127.0.0.1 - - [07/Mar/2018:19:26:44 +0000] "GET /headers HTTP/1.1" 200 361 "-" "curl/7.35.0"
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{{< /text >}}
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@ -373,29 +365,29 @@ forget", which means that the responses are discarded.
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1. Remove the rules:
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{{< tabset category-name="config-api" >}}
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{{< tabset category-name="config-api" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< tab name="Istio APIs" category-value="istio-apis" >}}
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{{< text bash >}}
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$ kubectl delete virtualservice httpbin
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$ kubectl delete destinationrule httpbin
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{{< /text >}}
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{{< text bash >}}
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$ kubectl delete virtualservice httpbin
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$ kubectl delete destinationrule httpbin
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{{< /text >}}
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{{< /tab >}}
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{{< /tab >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< tab name="Gateway API" category-value="gateway-api" >}}
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{{< text bash >}}
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$ kubectl delete httproute httpbin
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$ kubectl delete svc httpbin-v1 httpbin-v2
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{{< /text >}}
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{{< text bash >}}
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$ kubectl delete httproute httpbin
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$ kubectl delete svc httpbin-v1 httpbin-v2
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{{< /text >}}
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{{< /tab >}}
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{{< /tab >}}
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{{< /tabset >}}
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{{< /tabset >}}
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2) Shutdown the [httpbin]({{< github_tree >}}/samples/httpbin) service and client:
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1. Delete `httpbin` and `sleep` deployments and `httpbin` service:
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{{< text bash >}}
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$ kubectl delete deploy httpbin-v1 httpbin-v2 sleep
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|
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@ -22,7 +22,7 @@
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source "content/en/boilerplates/snips/gateway-api-support.sh"
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snip_before_you_begin_1() {
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cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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kubectl create -f - <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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@ -50,7 +50,7 @@ EOF
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}
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snip_before_you_begin_2() {
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cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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kubectl create -f - <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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|
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@ -96,7 +96,7 @@ EOF
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}
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snip_before_you_begin_4() {
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cat <<EOF | istioctl kube-inject -f - | kubectl create -f -
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cat <<EOF | kubectl create -f -
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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|
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@ -195,8 +195,7 @@ EOF
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}
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snip_creating_a_default_routing_policy_3() {
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export SLEEP_POD=$(kubectl get pod -l app=sleep -o jsonpath={.items..metadata.name})
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kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
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kubectl exec deploy/sleep -c sleep -- curl -sS http://httpbin:8000/headers
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}
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! IFS=$'\n' read -r -d '' snip_creating_a_default_routing_policy_3_out <<\ENDSNIP
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|
|
@ -217,8 +216,7 @@ kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
|
|||
ENDSNIP
|
||||
|
||||
snip_creating_a_default_routing_policy_4() {
|
||||
export V1_POD=$(kubectl get pod -l app=httpbin,version=v1 -o jsonpath={.items..metadata.name})
|
||||
kubectl logs "$V1_POD" -c httpbin
|
||||
kubectl logs deploy/httpbin-v1 -c httpbin
|
||||
}
|
||||
|
||||
! IFS=$'\n' read -r -d '' snip_creating_a_default_routing_policy_4_out <<\ENDSNIP
|
||||
|
|
@ -226,15 +224,14 @@ kubectl logs "$V1_POD" -c httpbin
|
|||
ENDSNIP
|
||||
|
||||
snip_creating_a_default_routing_policy_5() {
|
||||
export V2_POD=$(kubectl get pod -l app=httpbin,version=v2 -o jsonpath={.items..metadata.name})
|
||||
kubectl logs "$V2_POD" -c httpbin
|
||||
kubectl logs deploy/httpbin-v2 -c httpbin
|
||||
}
|
||||
|
||||
! IFS=$'\n' read -r -d '' snip_creating_a_default_routing_policy_5_out <<\ENDSNIP
|
||||
<none>
|
||||
ENDSNIP
|
||||
|
||||
snip_mirroring_traffic_to_v2_1() {
|
||||
snip_mirroring_traffic_to_httpbinv2_1() {
|
||||
kubectl apply -f - <<EOF
|
||||
apiVersion: networking.istio.io/v1alpha3
|
||||
kind: VirtualService
|
||||
|
|
@ -257,7 +254,7 @@ spec:
|
|||
EOF
|
||||
}
|
||||
|
||||
snip_mirroring_traffic_to_v2_2() {
|
||||
snip_mirroring_traffic_to_httpbinv2_2() {
|
||||
kubectl apply -f - <<EOF
|
||||
apiVersion: gateway.networking.k8s.io/v1
|
||||
kind: HTTPRoute
|
||||
|
|
@ -282,24 +279,24 @@ spec:
|
|||
EOF
|
||||
}
|
||||
|
||||
snip_mirroring_traffic_to_v2_3() {
|
||||
kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
|
||||
snip_mirroring_traffic_to_httpbinv2_3() {
|
||||
kubectl exec deploy/sleep -c sleep -- curl -sS http://httpbin:8000/headers
|
||||
}
|
||||
|
||||
snip_mirroring_traffic_to_v2_4() {
|
||||
kubectl logs "$V1_POD" -c httpbin
|
||||
snip_mirroring_traffic_to_httpbinv2_4() {
|
||||
kubectl logs deploy/httpbin-v1 -c httpbin
|
||||
}
|
||||
|
||||
! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_v2_4_out <<\ENDSNIP
|
||||
! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_httpbinv2_4_out <<\ENDSNIP
|
||||
127.0.0.1 - - [07/Mar/2018:19:02:43 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
|
||||
127.0.0.1 - - [07/Mar/2018:19:26:44 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
|
||||
ENDSNIP
|
||||
|
||||
snip_mirroring_traffic_to_v2_5() {
|
||||
kubectl logs "$V2_POD" -c httpbin
|
||||
snip_mirroring_traffic_to_httpbinv2_5() {
|
||||
kubectl logs deploy/httpbin-v2 -c httpbin
|
||||
}
|
||||
|
||||
! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_v2_5_out <<\ENDSNIP
|
||||
! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_httpbinv2_5_out <<\ENDSNIP
|
||||
127.0.0.1 - - [07/Mar/2018:19:26:44 +0000] "GET /headers HTTP/1.1" 200 361 "-" "curl/7.35.0"
|
||||
ENDSNIP
|
||||
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@ GATEWAY_API="${GATEWAY_API:-false}"
|
|||
|
||||
# @setup profile=default
|
||||
|
||||
kubectl label namespace default istio-injection- --overwrite
|
||||
kubectl label namespace default istio-injection=enabled
|
||||
|
||||
# create the httpbin service
|
||||
snip_before_you_begin_3
|
||||
|
|
@ -67,9 +67,9 @@ _verify_contains send_request_and_get_v1_log "GET /headers HTTP/1.1"
|
|||
_verify_not_contains snip_creating_a_default_routing_policy_5 "GET /headers HTTP/1.1"
|
||||
|
||||
if [ "$GATEWAY_API" == "true" ]; then
|
||||
snip_mirroring_traffic_to_v2_2
|
||||
snip_mirroring_traffic_to_httpbinv2_2
|
||||
else
|
||||
snip_mirroring_traffic_to_v2_1
|
||||
snip_mirroring_traffic_to_httpbinv2_1
|
||||
|
||||
# wait for config
|
||||
_wait_for_istio virtualservice default httpbin
|
||||
|
|
@ -81,8 +81,8 @@ export V1_POD=$(kubectl get pod -l app=httpbin,version=v1 -o jsonpath={.items..m
|
|||
export V2_POD=$(kubectl get pod -l app=httpbin,version=v2 -o jsonpath={.items..metadata.name})
|
||||
|
||||
send_request_and_get_v2_log() {
|
||||
_verify_contains snip_mirroring_traffic_to_v2_3 "headers"
|
||||
out=$(snip_mirroring_traffic_to_v2_5)
|
||||
_verify_contains snip_mirroring_traffic_to_httpbinv2_3 "headers"
|
||||
out=$(snip_mirroring_traffic_to_httpbinv2_5)
|
||||
echo "$out"
|
||||
}
|
||||
_verify_contains send_request_and_get_v2_log "GET /headers HTTP/1.1"
|
||||
|
|
@ -92,3 +92,6 @@ if [ "$GATEWAY_API" != "true" ]; then
|
|||
snip_cleaning_up_1
|
||||
snip_cleaning_up_3
|
||||
fi
|
||||
|
||||
# Remove the label, otherwise the test fails (before/after snapshots won't match)
|
||||
kubectl label namespace default istio-injection-
|
||||
Loading…
Reference in New Issue