38 lines
1.5 KiB
Markdown
38 lines
1.5 KiB
Markdown
# Simple sleep service
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This sample consists of a simple service that does nothing but sleep.
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It's a ubuntu container with curl installed that can be used as a request source for invoking other services
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to experiment with Istio networking.
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To use it:
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1. Install Istio by following the [istio install instructions](https://istio.io/docs/setup/).
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1. Start the sleep service:
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If you have [automatic sidecar injection](https://istio.io/docs/setup/additional-setup/sidecar-injection/#automatic-sidecar-injection) enabled:
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```bash
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kubectl apply -f sleep.yaml
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```
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Otherwise manually inject the sidecars before applying:
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```bash
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kubectl apply -f <(istioctl kube-inject -f sleep.yaml)
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```
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1. Start some other services, for example, the [Bookinfo sample](https://istio.io/docs/examples/bookinfo/).
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Now you can `kubectl exec` into the sleep service to experiment with Istio networking.
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For example, the following commands can be used to call the Bookinfo `ratings` service:
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```bash
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export SLEEP_POD=$(kubectl get pod -l app=sleep -o jsonpath={.items..metadata.name})
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kubectl exec -it $SLEEP_POD -c sleep -- curl http://ratings.default.svc.cluster.local:9080/ratings/1
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{"id":1,"ratings":{"Reviewer1":5,"Reviewer2":4}}
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```
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You can also use the sleep service to test accessing services outside of the mesh.
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See [configuring egress](https://istio.io/docs/tasks/traffic-management/egress/) for details.
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