examples: Update examples to Kubernetes v1.8.1

CHANGES.md

@@ -11,7 +11,7 @@ Notable changes between releases.
 
 ### Examples / Modules
 
-* Upgrade Kubernetes v1.7.7 example clusters
+* Upgrade Kubernetes example clusters to v1.8.1
 * Kubernetes examples clusters enable etcd TLS
 * Deploy the Container Linux Update Operator (CLUO) to coordinate reboots of Container Linux nodes in Kubernetes clusters. See the cluster [addon docs](Documentation/cluster-addons.md).
 * Kubernetes examples (terraform and non-terraform) mask locksmithd

Documentation/bootkube.md

@@ -1,6 +1,6 @@
 # Kubernetes
 
-The Kubernetes example provisions a 3 node Kubernetes v1.7.7 cluster. [bootkube](https://github.com/kubernetes-incubator/bootkube) is run once on a controller node to bootstrap Kubernetes control plane components as pods before exiting. An etcd3 cluster across controllers is used to back Kubernetes.
+The Kubernetes example provisions a 3 node Kubernetes v1.8.1 cluster. [bootkube](https://github.com/kubernetes-incubator/bootkube) is run once on a controller node to bootstrap Kubernetes control plane components as pods before exiting. An etcd3 cluster across controllers is used to back Kubernetes.
 
 ## Requirements
 
@@ -44,12 +44,14 @@ Add your SSH public key to each machine group definition [as shown](../examples/
 }
 ```
 
-Use the `bootkube` tool to render Kubernetes manifests and credentials into an `--asset-dir`. Later, `bootkube` will schedule these manifests during bootstrapping and the credentials will be used to access your cluster.
+Use the `bootkube` tool to render Kubernetes manifests and credentials into an `--asset-dir`. Set the `--network-provider` to `flannel` (default) or `experimental-calico` if desired.
 
 ```sh
 bootkube render --asset-dir=assets --api-servers=https://node1.example.com:443 --api-server-alt-names=DNS=node1.example.com --etcd-servers=https://node1.example.com:2379
 ```
 
+Later, a controller will use `bootkube` to bootstrap these manifests and the credentials will be used to access your cluster.
+
 ## Containers
 
 Use rkt or docker to start `matchbox` and mount the desired example resources. Create a network boot environment and power-on your machines. Revisit [matchbox with rkt](getting-started-rkt.md) or [matchbox with Docker](getting-started-docker.md) for help.
@@ -106,9 +108,9 @@ $ ssh core@node1.example.com 'journalctl -f -u bootkube'
 $ export KUBECONFIG=assets/auth/kubeconfig
 $ kubectl get nodes
 NAME                STATUS    AGE       VERSION
-node1.example.com   Ready     11m       v1.7.7+coreos.0
-node2.example.com   Ready     11m       v1.7.7+coreos.0
-node3.example.com   Ready     11m       v1.7.7+coreos.0
+node1.example.com   Ready     11m       v1.8.1+coreos.0
+node2.example.com   Ready     11m       v1.8.1+coreos.0
+node3.example.com   Ready     11m       v1.8.1+coreos.0
 
 $ kubectl get pods --all-namespaces
 NAMESPACE     NAME                                       READY     STATUS    RESTARTS   AGE

README.md

@@ -30,10 +30,10 @@
     * [matchbox with Docker](Documentation/getting-started-docker.md)
 * Clusters
   * [etcd3](Documentation/getting-started-rkt.md) - Install a 3-node etcd3 cluster
-  * [Kubernetes](Documentation/bootkube.md) - Install a 3-node Kubernetes v1.7.7 cluster
+  * [Kubernetes](Documentation/bootkube.md) - Install a 3-node Kubernetes v1.8.1 cluster
 * Clusters (Terraform-based)
   * [etcd3](examples/terraform/etcd3-install/README.md) - Install a 3-node etcd3 cluster
-  * [Kubernetes](examples/terraform/bootkube-install/README.md) - Install a 3-node Kubernetes v1.7.7 cluster
+  * [Kubernetes](examples/terraform/bootkube-install/README.md) - Install a 3-node Kubernetes v1.8.1 cluster
 
 ### Projects
 

examples/README.md

@@ -10,7 +10,7 @@ These examples use [Terraform](https://www.terraform.io/intro/) as a client to M
 |-------------------------------|-------------------------------|
 | [simple-install](terraform/simple-install) | Install Container Linux with an SSH key |
 | [etcd3-install](terraform/etcd3-install) | Install a 3-node etcd3 cluster |
-| [bootkube-install](terraform/bootkube-install) | Install a 3-node Kubernetes v1.7.7 cluster |
+| [bootkube-install](terraform/bootkube-install) | Install a 3-node Kubernetes v1.8.1 cluster |
 
 ### Customization
 
@@ -27,8 +27,8 @@ These examples mount raw Matchbox objects into a Matchbox server's `/var/lib/mat
 | grub | CoreOS Container Linux via GRUB2 Netboot | stable/1465.7.0 | RAM | NA |
 | etcd3 | PXE boot a 3-node etcd3 cluster with proxies | stable/1465.7.0 | RAM | None |
 | etcd3-install | Install a 3-node etcd3 cluster to disk | stable/1465.7.0 | Disk | None |
-| bootkube | PXE boot a 3-node Kubernetes v1.7.7 cluster | stable/1465.7.0 | Disk | [tutorial](../Documentation/bootkube.md) |
-| bootkube-install | Install a 3-node Kubernetes v1.7.7 cluster | stable/1465.7.0 | Disk | [tutorial](../Documentation/bootkube.md) |
+| bootkube | PXE boot a 3-node Kubernetes v1.8.1 cluster | stable/1465.7.0 | Disk | [tutorial](../Documentation/bootkube.md) |
+| bootkube-install | Install a 3-node Kubernetes v1.8.1 cluster | stable/1465.7.0 | Disk | [tutorial](../Documentation/bootkube.md) |
 
 ### Customization
 

examples/ignition/bootkube-controller.yaml

@@ -126,7 +126,7 @@ storage:
       contents:
         inline: |
           KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
-          KUBELET_IMAGE_TAG=v1.7.7_coreos.0
+          KUBELET_IMAGE_TAG=v1.8.1_coreos.0
     - path: /etc/ssl/etcd/.empty
       filesystem: root
       mode: 0644
@@ -156,8 +156,8 @@ storage:
           #!/bin/bash
           # Wrapper for bootkube start
           set -e
-          BOOTKUBE_ACI="${BOOTKUBE_ACI:-quay.io/coreos/bootkube}"
-          BOOTKUBE_VERSION="${BOOTKUBE_VERSION:-v0.7.0}"
+          BOOTKUBE_ACI="${BOOTKUBE_ACI:-quay.io/coreos/bootkube-dev}"
+          BOOTKUBE_VERSION="${BOOTKUBE_VERSION:-34f3b35c9097a04b9fc43abb56901c9eea764a6e}"
           BOOTKUBE_ASSETS="${BOOTKUBE_ASSETS:-/opt/bootkube/assets}"
           exec /usr/bin/rkt run \
             --trust-keys-from-https \

examples/ignition/bootkube-worker.yaml

@@ -95,7 +95,7 @@ storage:
       contents:
         inline: |
           KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
-          KUBELET_IMAGE_TAG=v1.7.7_coreos.0
+          KUBELET_IMAGE_TAG=v1.8.1_coreos.0
     - path: /etc/ssl/etcd/.empty
       filesystem: root
       mode: 0644

examples/terraform/bootkube-install/README.md

@@ -1,6 +1,6 @@
 # Kubernetes
 
-The Kubernetes example shows how to use Matchbox to network boot and provision a 3 node Kubernetes v1.7.7 cluster. This example uses [Terraform](https://www.terraform.io/intro/index.html) and a module provided by [Typhoon](https://github.com/poseidon/typhoon) to describe cluster resources. [kubernetes-incubator/bootkube](https://github.com/kubernetes-incubator/bootkube) is run once to bootstrap the Kubernetes control plane.
+The Kubernetes example shows how to use Matchbox to network boot and provision a 3 node Kubernetes v1.8.1 cluster. This example uses [Terraform](https://www.terraform.io/intro/index.html) and a module provided by [Typhoon](https://github.com/poseidon/typhoon) to describe cluster resources. [kubernetes-incubator/bootkube](https://github.com/kubernetes-incubator/bootkube) is run once to bootstrap the Kubernetes control plane.
 
 ## Requirements
 
@@ -129,9 +129,9 @@ $ sudo ./scripts/libvirt [start|reboot|shutdown|poweroff|destroy]
 $ export KUBECONFIG=assets/auth/kubeconfig
 $ kubectl get nodes
 NAME                STATUS    AGE       VERSION
-node1.example.com   Ready     11m       v1.7.7+coreos.0
-node2.example.com   Ready     11m       v1.7.7+coreos.0
-node3.example.com   Ready     11m       v1.7.7+coreos.0
+node1.example.com   Ready     11m       v1.8.1+coreos.0
+node2.example.com   Ready     11m       v1.8.1+coreos.0
+node3.example.com   Ready     11m       v1.8.1+coreos.0
 
 $ kubectl get pods --all-namespaces
 NAMESPACE     NAME                                       READY     STATUS    RESTARTS   AGE

examples/terraform/bootkube-install/cluster.tf

@@ -1,6 +1,6 @@
 // Kubernetes cluster
 module "cluster" {
-  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=1bc25c103654a497bcc0c2486104426f09ea2456"
+  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=e690fdd2913474049ae94a84b2f621b4abbb690a"
 
   # install
   matchbox_http_endpoint  = "${var.matchbox_http_endpoint}"