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Update docs for running under docker

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Make them a bit more version safe.
This commit is contained in:
Tim Hockin 2015-10-28 10:03:55 -07:00
parent a0ef44b712
commit faa5c5885a
5 changed files with 61 additions and 21 deletions
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36
docs/getting-started-guides/docker-multinode/master.md
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@ -33,7 +33,9 @@ Documentation for other releases can be found at
## Installing a Kubernetes Master Node via Docker
We'll begin by setting up the master node. For the purposes of illustration, we'll assume that the IP of this machine is `${MASTER_IP}`
We'll begin by setting up the master node. For the purposes of illustration, we'll assume that the IP of this machine
is `${MASTER_IP}`. We'll need to run several versioned Kubernetes components, so we'll assume that the version we want
to run is `${K8S_VERSION}`, which should hold a value such as "1.0.7".
There are two main phases to installing the master:
* [Setting up `flanneld` and `etcd`](#setting-up-flanneld-and-etcd)
@ -44,7 +46,7 @@ There are two main phases to installing the master:
_Note_:
There is a [bug](https://github.com/docker/docker/issues/14106) in Docker 1.7.0 that prevents this from working correctly.
Please install Docker 1.6.2 or Docker 1.7.1.
Please install Docker 1.6.2 or Docker 1.7.1 or Docker 1.8.3.
### Setup Docker-Bootstrap
@ -171,7 +173,7 @@ sudo docker run \
--privileged=true \
--pid=host \
-d \
gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube kubelet --api-servers=http://localhost:8080 --v=2 --address=0.0.0.0 --enable-server --hostname-override=127.0.0.1 --config=/etc/kubernetes/manifests-multi --cluster-dns=10.0.0.10 --cluster-domain=cluster.local
gcr.io/google_containers/hyperkube:v${K8S_VERSION} /hyperkube kubelet --api-servers=http://localhost:8080 --v=2 --address=0.0.0.0 --enable-server --hostname-override=127.0.0.1 --config=/etc/kubernetes/manifests-multi --cluster-dns=10.0.0.10 --cluster-domain=cluster.local
```
> Note that `--cluster-dns` and `--cluster-domain` is used to deploy dns, feel free to discard them if dns is not needed.
@ -179,24 +181,40 @@ sudo docker run \
### Also run the service proxy
```sh
sudo docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube proxy --master=http://127.0.0.1:8080 --v=2
sudo docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v${K8S_VERSION} /hyperkube proxy --master=http://127.0.0.1:8080 --v=2
```
### Test it out
At this point, you should have a functioning 1-node cluster. Let's test it out!
Download the kubectl binary and make it available by editing your PATH ENV.
([OS X](http://storage.googleapis.com/kubernetes-release/release/v1.0.1/bin/darwin/amd64/kubectl))
([linux](http://storage.googleapis.com/kubernetes-release/release/v1.0.1/bin/linux/amd64/kubectl))
Download the kubectl binary for `${K8S_VERSION}` (look at the URL in the following links) and make it available by editing your PATH environment variable.
([OS X](http://storage.googleapis.com/kubernetes-release/release/v1.0.7/bin/darwin/amd64/kubectl))
([linux](http://storage.googleapis.com/kubernetes-release/release/v1.0.7/bin/linux/amd64/kubectl))
List the nodes
For example, OS X:
```console
$ wget http://storage.googleapis.com/kubernetes-release/release/v${K8S_VERSION}/bin/darwin/amd64/kubectl
$ chmod 755 kubectl
$ PATH=$PATH:`pwd`
```
Linux:
```console
$ wget http://storage.googleapis.com/kubernetes-release/release/v${K8S_VERSION}/bin/linux/amd64/kubectl
$ chmod 755 kubectl
$ PATH=$PATH:`pwd`
```
Now you can list the nodes:
```sh
kubectl get nodes
```
This should print:
This should print something like:
```console
NAME LABELS STATUS

2
docs/getting-started-guides/docker-multinode/master.sh
View File

@ -27,7 +27,7 @@ fi
# Make sure k8s version env is properly set
if [ -z ${K8S_VERSION} ]; then
K8S_VERSION="1.0.3"
K8S_VERSION="1.0.7"
echo "K8S_VERSION is not set, using default: ${K8S_VERSION}"
else
echo "k8s version is set to: ${K8S_VERSION}"

9
docs/getting-started-guides/docker-multinode/worker.md
View File

@ -37,7 +37,8 @@ Documentation for other releases can be found at
These instructions are very similar to the master set-up above, but they are duplicated for clarity.
You need to repeat these instructions for each node you want to join the cluster.
We will assume that the IP address of this node is `${NODE_IP}` and you have the IP address of the master in `${MASTER_IP}` that you created in the [master instructions](master.md).
We will assume that the IP address of this node is `${NODE_IP}` and you have the IP address of the master in `${MASTER_IP}` that you created in the [master instructions](master.md). We'll need to run several versioned Kubernetes components, so we'll assume that the version we want
to run is `${K8S_VERSION}`, which should hold a value such as "1.0.7".
For each worker node, there are three steps:
* [Set up `flanneld` on the worker node](#set-up-flanneld-on-the-worker-node)
@ -50,7 +51,7 @@ As before, the Flannel daemon is going to provide network connectivity.
_Note_:
There is a [bug](https://github.com/docker/docker/issues/14106) in Docker 1.7.0 that prevents this from working correctly.
Please install Docker 1.6.2 or wait for Docker 1.7.1.
Please install Docker 1.6.2 or Docker 1.7.1 or Docker 1.8.3.
#### Set up a bootstrap docker
@ -157,7 +158,7 @@ sudo docker run \
--privileged=true \
--pid=host \
-d \
gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube kubelet --api-servers=http://${MASTER_IP}:8080 --v=2 --address=0.0.0.0 --enable-server --hostname-override=$(hostname -i) --cluster-dns=10.0.0.10 --cluster-domain=cluster.local
gcr.io/google_containers/hyperkube:v${K8S_VERSION} /hyperkube kubelet --api-servers=http://${MASTER_IP}:8080 --v=2 --address=0.0.0.0 --enable-server --hostname-override=$(hostname -i) --cluster-dns=10.0.0.10 --cluster-domain=cluster.local
```
#### Run the service proxy
@ -165,7 +166,7 @@ sudo docker run \
The service proxy provides load-balancing between groups of containers defined by Kubernetes `Services`
```sh
sudo docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v1.0.1 /hyperkube proxy --master=http://${MASTER_IP}:8080 --v=2
sudo docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v${K8S_VERSION} /hyperkube proxy --master=http://${MASTER_IP}:8080 --v=2
```
### Next steps

2
docs/getting-started-guides/docker-multinode/worker.sh
View File

@ -27,7 +27,7 @@ fi
# Make sure k8s version env is properly set
if [ -z ${K8S_VERSION} ]; then
K8S_VERSION="1.0.3"
K8S_VERSION="1.0.7"
echo "K8S_VERSION is not set, using default: ${K8S_VERSION}"
else
echo "k8s version is set to: ${K8S_VERSION}"

33
docs/getting-started-guides/docker.md
View File

@ -83,6 +83,9 @@ parameters as follows:
swapaccount=1
```
4. Decide what Kubernetes version to use. Set the `${K8S_VERSION}` variable to
a value such as "1.0.7".
### Step One: Run etcd
```sh
@ -103,7 +106,7 @@ docker run \
--pid=host \
--privileged=true \
-d \
gcr.io/google_containers/hyperkube:v1.0.6 \
gcr.io/google_containers/hyperkube:v${K8S_VERSION} \
/hyperkube kubelet --containerized --hostname-override="127.0.0.1" --address="0.0.0.0" --api-servers=http://localhost:8080 --config=/etc/kubernetes/manifests
```
@ -112,15 +115,33 @@ This actually runs the kubelet, which in turn runs a [pod](../user-guide/pods.md
### Step Three: Run the service proxy
```sh
docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v1.0.6 /hyperkube proxy --master=http://127.0.0.1:8080 --v=2
docker run -d --net=host --privileged gcr.io/google_containers/hyperkube:v${K8S_VERSION} /hyperkube proxy --master=http://127.0.0.1:8080 --v=2
```
### Test it out
At this point you should have a running Kubernetes cluster. You can test this by downloading the kubectl
binary
([OS X](https://storage.googleapis.com/kubernetes-release/release/v1.0.1/bin/darwin/amd64/kubectl))
([linux](https://storage.googleapis.com/kubernetes-release/release/v1.0.1/bin/linux/amd64/kubectl))
At this point you should have a running Kubernetes cluster. You can test this
by downloading the kubectl binary for `${K8S_VERSION}` (look at the URL in the
following links) and make it available by editing your PATH environment
variable.
([OS X](http://storage.googleapis.com/kubernetes-release/release/v1.0.7/bin/darwin/amd64/kubectl))
([linux](http://storage.googleapis.com/kubernetes-release/release/v1.0.7/bin/linux/amd64/kubectl))
For example, OS X:
```console
$ wget http://storage.googleapis.com/kubernetes-release/release/v${K8S_VERSION}/bin/darwin/amd64/kubectl
$ chmod 755 kubectl
$ PATH=$PATH:`pwd`
```
Linux:
```console
$ wget http://storage.googleapis.com/kubernetes-release/release/v${K8S_VERSION}/bin/linux/amd64/kubectl
$ chmod 755 kubectl
$ PATH=$PATH:`pwd`
```
<hr>