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Hint for running kubectl proxy in examples/update-demo + updated outputs

This commit is contained in:
Marcin Wielgus 2015-06-29 16:41:49 +02:00
parent 0c988f55fd
commit ae67421aa2
1 changed files with 10 additions and 7 deletions
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17
update-demo/README.md
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@ -28,11 +28,14 @@ $ ./cluster/kube-up.sh
### Step One: Turn up the UX for the demo ### Step One: Turn up the UX for the demo
You can use bash job control to run this in the background (note that you must use the default port -- 8001 -- for the following demonstration to work properly). This can sometimes spew to the output so you could also run it in a different terminal. You can use bash job control to run this in the background (note that you must use the default port -- 8001 -- for the following demonstration to work properly).
This can sometimes spew to the output so you could also run it in a different terminal. You have to run `kubectl proxy` in the root of the
Kubernetes repository. Otherwise you will get "404 page not found" errors as the paths will not match. You can find more information about `kubectl proxy`
[here](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/kubectl_proxy.md).
``` ```
$ ./kubectl proxy --www=examples/update-demo/local/ & $ kubectl proxy --www=examples/update-demo/local/ &
+ ./kubectl proxy --www=examples/update-demo/local/ + kubectl proxy --www=examples/update-demo/local/
I0218 15:18:31.623279 67480 proxy.go:36] Starting to serve on localhost:8001 I0218 15:18:31.623279 67480 proxy.go:36] Starting to serve on localhost:8001
``` ```
@ -42,7 +45,7 @@ Now visit the the [demo website](http://localhost:8001/static). You won't see a
Now we will turn up two replicas of an image. They all serve on internal port 80. Now we will turn up two replicas of an image. They all serve on internal port 80.
```bash ```bash
$ ./kubectl create -f examples/update-demo/nautilus-rc.yaml $ kubectl create -f examples/update-demo/nautilus-rc.yaml
``` ```
After pulling the image from the Docker Hub to your worker nodes (which may take a minute or so) you'll see a couple of squares in the UI detailing the pods that are running along with the image that they are serving up. A cute little nautilus. After pulling the image from the Docker Hub to your worker nodes (which may take a minute or so) you'll see a couple of squares in the UI detailing the pods that are running along with the image that they are serving up. A cute little nautilus.
@ -52,7 +55,7 @@ After pulling the image from the Docker Hub to your worker nodes (which may take
Now we will increase the number of replicas from two to four: Now we will increase the number of replicas from two to four:
```bash ```bash
$ ./kubectl scale rc update-demo-nautilus --replicas=4 $ kubectl scale rc update-demo-nautilus --replicas=4
``` ```
If you go back to the [demo website](http://localhost:8001/static/index.html) you should eventually see four boxes, one for each pod. If you go back to the [demo website](http://localhost:8001/static/index.html) you should eventually see four boxes, one for each pod.
@ -61,7 +64,7 @@ If you go back to the [demo website](http://localhost:8001/static/index.html) yo
We will now update the docker image to serve a different image by doing a rolling update to a new Docker image. We will now update the docker image to serve a different image by doing a rolling update to a new Docker image.
```bash ```bash
$ ./kubectl rolling-update update-demo-nautilus --update-period=10s -f examples/update-demo/kitten-rc.yaml $ kubectl rolling-update update-demo-nautilus --update-period=10s -f examples/update-demo/kitten-rc.yaml
``` ```
The rolling-update command in kubectl will do 2 things: The rolling-update command in kubectl will do 2 things:
@ -73,7 +76,7 @@ Watch the [demo website](http://localhost:8001/static/index.html), it will updat
### Step Five: Bring down the pods ### Step Five: Bring down the pods
```bash ```bash
$ ./kubectl stop rc update-demo-kitten $ kubectl stop rc update-demo-kitten
``` ```
This first stops the replication controller by turning the target number of replicas to 0 and then deletes the controller. This first stops the replication controller by turning the target number of replicas to 0 and then deletes the controller.