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
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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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@ -228,11 +224,10 @@ EOF
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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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@ -249,24 +244,21 @@ 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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@ -349,23 +341,23 @@ forget", which means that the responses are discarded.
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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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@ -395,7 +387,7 @@ $ kubectl delete svc httpbin-v1 httpbin-v2
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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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@ -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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@ -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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@ -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
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ENDSNIP
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snip_creating_a_default_routing_policy_4() {
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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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}
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! IFS=$'\n' read -r -d '' snip_creating_a_default_routing_policy_4_out <<\ENDSNIP
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@ -226,15 +224,14 @@ kubectl logs "$V1_POD" -c httpbin
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ENDSNIP
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snip_creating_a_default_routing_policy_5() {
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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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}
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! IFS=$'\n' read -r -d '' snip_creating_a_default_routing_policy_5_out <<\ENDSNIP
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<none>
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ENDSNIP
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snip_mirroring_traffic_to_v2_1() {
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snip_mirroring_traffic_to_httpbinv2_1() {
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kubectl apply -f - <<EOF
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apiVersion: networking.istio.io/v1alpha3
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kind: VirtualService
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@ -257,7 +254,7 @@ spec:
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EOF
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}
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snip_mirroring_traffic_to_v2_2() {
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snip_mirroring_traffic_to_httpbinv2_2() {
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kubectl apply -f - <<EOF
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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@ -282,24 +279,24 @@ spec:
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EOF
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}
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snip_mirroring_traffic_to_v2_3() {
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kubectl exec "${SLEEP_POD}" -c sleep -- curl -sS http://httpbin:8000/headers
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snip_mirroring_traffic_to_httpbinv2_3() {
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kubectl exec deploy/sleep -c sleep -- curl -sS http://httpbin:8000/headers
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}
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snip_mirroring_traffic_to_v2_4() {
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kubectl logs "$V1_POD" -c httpbin
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snip_mirroring_traffic_to_httpbinv2_4() {
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kubectl logs deploy/httpbin-v1 -c httpbin
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}
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! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_v2_4_out <<\ENDSNIP
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! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_httpbinv2_4_out <<\ENDSNIP
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127.0.0.1 - - [07/Mar/2018:19:02:43 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
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127.0.0.1 - - [07/Mar/2018:19:26:44 +0000] "GET /headers HTTP/1.1" 200 321 "-" "curl/7.35.0"
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ENDSNIP
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snip_mirroring_traffic_to_v2_5() {
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kubectl logs "$V2_POD" -c httpbin
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snip_mirroring_traffic_to_httpbinv2_5() {
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kubectl logs deploy/httpbin-v2 -c httpbin
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}
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! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_v2_5_out <<\ENDSNIP
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! IFS=$'\n' read -r -d '' snip_mirroring_traffic_to_httpbinv2_5_out <<\ENDSNIP
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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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ENDSNIP
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@ -25,7 +25,7 @@ GATEWAY_API="${GATEWAY_API:-false}"
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# @setup profile=default
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kubectl label namespace default istio-injection- --overwrite
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kubectl label namespace default istio-injection=enabled
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# create the httpbin service
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snip_before_you_begin_3
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@ -67,9 +67,9 @@ _verify_contains send_request_and_get_v1_log "GET /headers HTTP/1.1"
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_verify_not_contains snip_creating_a_default_routing_policy_5 "GET /headers HTTP/1.1"
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if [ "$GATEWAY_API" == "true" ]; then
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snip_mirroring_traffic_to_v2_2
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snip_mirroring_traffic_to_httpbinv2_2
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else
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snip_mirroring_traffic_to_v2_1
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snip_mirroring_traffic_to_httpbinv2_1
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# wait for config
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_wait_for_istio virtualservice default httpbin
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@ -81,8 +81,8 @@ export V1_POD=$(kubectl get pod -l app=httpbin,version=v1 -o jsonpath={.items..m
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export V2_POD=$(kubectl get pod -l app=httpbin,version=v2 -o jsonpath={.items..metadata.name})
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send_request_and_get_v2_log() {
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_verify_contains snip_mirroring_traffic_to_v2_3 "headers"
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out=$(snip_mirroring_traffic_to_v2_5)
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_verify_contains snip_mirroring_traffic_to_httpbinv2_3 "headers"
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out=$(snip_mirroring_traffic_to_httpbinv2_5)
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echo "$out"
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}
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_verify_contains send_request_and_get_v2_log "GET /headers HTTP/1.1"
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@ -92,3 +92,6 @@ if [ "$GATEWAY_API" != "true" ]; then
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snip_cleaning_up_1
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snip_cleaning_up_3
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fi
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# Remove the label, otherwise the test fails (before/after snapshots won't match)
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kubectl label namespace default istio-injection-
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