Initial checkin of v1.1 -- does not build

This commit is contained in:
John Mulhausen
2016-02-10 16:55:31 -08:00
parent d1da8c3615
commit a0fb30a6fb
420 changed files with 49449 additions and 158 deletions
+129
View File
@@ -0,0 +1,129 @@
---
layout: docwithnav
title: "Getting started with config files."
---
<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
<!-- END MUNGE: UNVERSIONED_WARNING -->
## Getting started with config files.
In addition to the imperative style commands described [elsewhere](simple-nginx.html), Kubernetes
supports declarative YAML or JSON configuration files. Often times config files are preferable
to imperative commands, since they can be checked into version control and changes to the files
can be code reviewed, producing a more robust, reliable and archival system.
### Running a container from a pod configuration file
{% highlight console %}
{% raw %}
$ cd kubernetes
$ kubectl create -f ./pod.yaml
{% endraw %}
{% endhighlight %}
Where pod.yaml contains something like:
<!-- BEGIN MUNGE: EXAMPLE pod.yaml -->
{% highlight yaml %}
{% raw %}
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx
ports:
- containerPort: 80
{% endraw %}
{% endhighlight %}
[Download example](pod.yaml)
<!-- END MUNGE: EXAMPLE pod.yaml -->
You can see your cluster's pods:
{% highlight console %}
{% raw %}
$ kubectl get pods
{% endraw %}
{% endhighlight %}
and delete the pod you just created:
{% highlight console %}
{% raw %}
$ kubectl delete pods nginx
{% endraw %}
{% endhighlight %}
### Running a replicated set of containers from a configuration file
To run replicated containers, you need a [Replication Controller](replication-controller.html).
A replication controller is responsible for ensuring that a specific number of pods exist in the
cluster.
{% highlight console %}
{% raw %}
$ cd kubernetes
$ kubectl create -f ./replication.yaml
{% endraw %}
{% endhighlight %}
Where `replication.yaml` contains:
<!-- BEGIN MUNGE: EXAMPLE replication.yaml -->
{% highlight yaml %}
{% raw %}
apiVersion: v1
kind: ReplicationController
metadata:
name: nginx
spec:
replicas: 3
selector:
app: nginx
template:
metadata:
name: nginx
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx
ports:
- containerPort: 80
{% endraw %}
{% endhighlight %}
[Download example](replication.yaml)
<!-- END MUNGE: EXAMPLE replication.yaml -->
To delete the replication controller (and the pods it created):
{% highlight console %}
{% raw %}
$ kubectl delete rc nginx
{% endraw %}
{% endhighlight %}
<!-- BEGIN MUNGE: IS_VERSIONED -->
<!-- TAG IS_VERSIONED -->
<!-- END MUNGE: IS_VERSIONED -->
<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/docs/user-guide/simple-yaml.md?pixel)]()
<!-- END MUNGE: GENERATED_ANALYTICS -->