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emptyDir: {}
- name: certs
hostPath: {path: /etc/ssl/certs}
<|endoftext|>
# source: k8s_examples/_archived/storage/vitess/guestbook-controller.yaml type: yaml
kind: ReplicationController
apiVersion: v1
metadata:
name: guestbook
spec:
replicas: 3
template:
metadata:
labels:
component: guestbook
app: vitess
spec:
containers:
- name: guestbook
image: vitess/guestbook:v2.0.0-alpha5
ports:
- name: http-server
containerPort: 8080
resources:
limits:
memory: "128Mi"
cpu: "100m"
<|endoftext|>
# source: k8s_examples/_archived/storage/vitess/vtctld-service.yaml type: yaml
kind: Service
apiVersion: v1
metadata:
name: vtctld
labels:
component: vtctld
app: vitess
spec:
ports:
- port: 15000
name: web
targetPort: 15000
nodePort: 30000
- port: 15001
name: grpc
targetPort: 15001
nodePort: 30001
selector:
component: vtctld
app: vitess
type: NodePort
<|endoftext|>
# source: k8s_examples/_archived/storage/vitess/README.md type: docs
## Vitess Example
This example shows how to run a [Vitess](http://vitess.io) cluster in Kubernetes.
Vitess is a MySQL clustering system developed at YouTube that makes sharding
transparent to the application layer. It also makes scaling MySQL within
Kubernetes as simple as launching more pods.
The example brings up a database with 2 shards, and then runs a pool of
[sharded guestbook](https://github.com/youtube/vitess/tree/master/examples/kubernetes/guestbook)
pods. The guestbook app was ported from the original
[guestbook](../../../examples/guestbook-go/)
example found elsewhere in this tree, modified to use Vitess as the backend.
For a more detailed, step-by-step explanation of this example setup, see the
[Vitess on Kubernetes](http://vitess.io/getting-started/) guide.
### Prerequisites
You'll need to install [Go 1.4+](https://go.dev/doc/install) to build
`vtctlclient`, the command-line admin tool for Vitess.
We also assume you have a running Kubernetes cluster with `kubectl` pointing to
it by default. See the [Getting Started guides](https://kubernetes.io/docs/getting-started-guides/)
for how to get to that point. Note that your Kubernetes cluster needs to have
enough resources (CPU+RAM) to schedule all the pods. By default, this example
requires a cluster-wide total of at least 6 virtual CPUs and 10GiB RAM. You can
tune these requirements in the
[resource limits](https://kubernetes.io/docs/user-guide/compute-resources.md)
section of each YAML file.
Lastly, you need to open ports 30000-30001 (for the Vitess admin daemon) and 80 (for
the guestbook app) in your firewall. See the
[Services and Firewalls](https://kubernetes.io/docs/user-guide/services-firewalls.md)
guide for examples of how to do that.
### Configure site-local settings
Run the `configure.sh` script to generate a `config.sh` file, which will be used
to customize your cluster settings.
``` console
./configure.sh
```
Currently, we have out-of-the-box support for storing