kubernetes tutorial update

doc/ext/ztkube.md

@@ -3,33 +3,32 @@ Kubernetes + ZeroTier
 
 A self-authorizing Kubernetes deployment on a ZeroTier private network.
 
-This is a quick tutorial for setting up a Kubernetes deployment which can self-authorize each new replica onto your private ZeroTier network with no additional configuration needed when you scale. The Kubernetes-specific instructions and content is based on the [hellonode](http://kubernetes.io/docs/hellonode/) tutorial.
+This is a quick tutorial for setting up a Kubernetes deployment which can self-authorize each new replica onto your private ZeroTier network with no additional configuration needed when you scale. The Kubernetes-specific instructions and content is based on the [hellonode](http://kubernetes.io/docs/hellonode/) tutorial. All of the files discussed below can be found [here]();
 
 
 
 ## Preliminary tasks
 
-**Step 1: Go to [my.zerotier.com](https://www.my.zerotier.com) and generate an API key. This key will be used by ZeroTier to automatically authorize new instances of your VMs to join your deployment network during replication.
+**Step 1: Go to [my.zerotier.com](https://my.zerotier.com) and generate an API key. This key will be used by ZeroTier to automatically authorize new instances of your VMs to join your deployment network during replication.**a
 
-**Step 2: Create a new `private` network. Take note of the network ID: `nwid`
+**Step 2: Create a new `private` network. Take note of the network ID: `nwid`**
 
-**Step 3: Follow the instructions from the [hellonode](ttp://kubernetes.io/docs/hellonode/) tutorial and set up your development system (install Google Cloud SDK).
+**Step 3: Follow the instructions from the [hellonode](ttp://kubernetes.io/docs/hellonode/) tutorial and set up your development system (install Google Cloud SDK).**
 
 
 
 
 ## Construct docker container
 
-Step 4: Create necessary files for inclusion in Dockerfile
+**Step 4: Create necessary files for inclusion in Dockerfile**
  - `mkdir ztkube`
 
-### Add the following files to the `ztkube` directory. These files will be compiled into the Docker image.
+Add the following files to the `ztkube` directory. These files will be compiled into the Docker image.
 
 
 Create an empty file to specify the private deployment network you created in *Step 2*:
  - `<nwid>.conf`
 
- - The `entrypoint.sh` script will start the ZeroTier service in the VM, attempt to join your deployment network and automatically authorize the new VM if your network is set to private.
 
 ```
 ./zerotier 
@@ -37,7 +36,7 @@ zerotier-cli join $(NWID).conf
 zerotier-cli net-auth $(NWID) $(DEVID)
 ```
 
-The cli tool config `.zerotierCliSettings`, this should contain your API keys to authorize new devices on your network. In this example the default controller is hosted by us at [my.zerotier.com](https://www.my.zerotier.com). YOu can host your own network controller and you'll need to modify the cli config accordingly:
+ - The CLI tool config file `.zerotierCliSettings` should contain your API keys to authorize new devices on your network. In this example the default controller is hosted by us at [my.zerotier.com](https://my.zerotier.com). Alternatively, you can host your own network controller but you'll need to modify the CLI config file accordingly.
 
 ```
 {
@@ -61,8 +60,7 @@ The cli tool config `.zerotierCliSettings`, this should contain your API keys to
 ```
 
 
-
-`Dockerfile`
+ - The `Dockerfile` will copy the ZeroTier service as well as the ZeroTier CLI to the image: 
 
 ```
 FROM node:4.4
@@ -75,22 +73,38 @@ COPY .zerotierCliSettings <settings path>?>
 CMD node server.js
 ```
 
-Step 5: Lastly, build the image:
+ - The `entrypoint.sh` script will start the ZeroTier service in the VM, attempt to join your deployment network and automatically authorize the new VM if your network is set to private.
+
+**Step 5: Lastly, build the image:**
+
 `docker build -t gcr.io/$PROJECT_ID/hello-node .`
 
-Step 6: Build and push the docker image to your *Container Registry*
+
+
+**Step 6: Push the docker image to your *Container Registry**
 
 `gcloud docker push gcr.io/$PROJECT_ID/hello-node:v1`
 
-Step 7: Create Kubernetes Cluster
+
+
+**Step 7: Create Kubernetes Cluster**
+
 `gcloud config set compute/zone us-central1-a`
+
 `gcloud container clusters create hello-world`
+
 `gcloud container clusters get-credentials hello-world`
 
-Step 8: Create your pod
+
+
+**Step 8: Create your pod**
+
 `kubectl run hello-node --image=gcr.io/$PROJECT_ID/hello-node:v1 --port=8080`
 
-Step 9: Scale
+
+
+**Step 9: Scale**
+
 `kubectl scale deployment hello-node --replicas=4`
 
-Now, after a minute or so you can use `zerotier-cli net-members <nwid>` to show all of your VM instances on your ZeroTier deployment network. If you haven't configured your local CLI, you can simply log into [my.zerotier.com](https://my.zerotier.com), go to *Networks -> <nwid>*.
+Now, after a minute or so you can use `zerotier-cli net-members <nwid>` to show all of your VM instances on your ZeroTier deployment network. If you haven't [configured your local CLI](), you can simply log into [my.zerotier.com](https://my.zerotier.com), go to *Networks -> <nwid>*.