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Adding automatic OS image download for Openstack provider.

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This makes it so that we download the OS image automatically.

Also contains other usability improvements:
- kubectl context created with heat stack name
- Bumped default minions to 3
This commit is contained in:
Elson O Rodriguez 2016-04-15 12:45:57 -07:00 committed by Lukasz Zajaczkowski
parent 5ae161e086
commit 2ffc86bc1d
4 changed files with 21 additions and 11 deletions
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7
cluster/openstack/config-default.sh
View File

@ -25,9 +25,9 @@ KUBERNETES_KEYPAIR_NAME=${KUBERNETES_KEYPAIR_NAME:-kubernetes_keypair}
# Kubernetes release tar file
KUBERNETES_RELEASE_TAR=${KUBERNETES_RELEASE_TAR:-kubernetes-server-linux-amd64.tar.gz}
NUMBER_OF_MINIONS=${NUMBER_OF_MINIONS-1}
NUMBER_OF_MINIONS=${NUMBER_OF_MINIONS-3}
MAX_NUMBER_OF_MINIONS=${MAX_NUMBER_OF_MINIONS:-1}
MAX_NUMBER_OF_MINIONS=${MAX_NUMBER_OF_MINIONS:-3}
MASTER_FLAVOR=${MASTER_FLAVOR:-m1.small}
@ -41,6 +41,9 @@ SWIFT_SERVER_URL=${SWIFT_SERVER_URL:-http://192.168.123.100:8080}
# If 'true' then new image will be created from file config-image.sh
CREATE_IMAGE=${CREATE_IMAGE:-true} # use "true" for devstack
# Flag indicates if image should be downloaded
DOWNLOAD_IMAGE=${DOWNLOAD_IMAGE:-true}
# Image id which will be used for kubernetes stack
IMAGE_ID=${IMAGE_ID:-f0f394b1-5546-4b68-b2bc-8abe8a7e6b8b}

13
cluster/openstack/config-image.sh
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@ -17,16 +17,19 @@
## Contains configuration values for new image. It is skip when CREATE_IMAGE=false
# Image name which will be displayed in OpenStack
OPENSTACK_IMAGE_NAME="CentOS7"
OPENSTACK_IMAGE_NAME=${OPENSTACK_IMAGE_NAME:-CentOS7}
# Downloaded image name for Openstack project
IMAGE_FILE="CentOS-7-x86_64-GenericCloud-1510.qcow2"
IMAGE_FILE=${IMAGE_FILE:-CentOS-7-x86_64-GenericCloud-1510.qcow2}
# Absolute path where image file is stored.
IMAGE_PATH="/home/openstack/openstack_temp"
IMAGE_PATH=${IMAGE_PATH:-~/Downloads/openstack}
# The URL basepath for downloading the image
IMAGE_URL_PATH=${IMAGE_URL_PATH:-http://cloud.centos.org/centos/7/images}
# The disk format of the image. Acceptable formats are ami, ari, aki, vhd, vmdk, raw, qcow2, vdi, and iso.
IMAGE_FORMAT="qcow2"
IMAGE_FORMAT=${IMAGE_FORMAT:-qcow2}
# The container format of the image. Acceptable formats are ami, ari, aki, bare, docker, and ovf.
CONTAINER_FORMAT="bare"
CONTAINER_FORMAT=${CONTAINER_FORMAT:-bare}

4
cluster/openstack/kubernetes-heat/kubecluster.yaml
View File

@ -2,7 +2,7 @@ heat_template_version: 2014-10-16
description: >
Kubernetes cluster with one master and one or more worker nodes
(as specified by the number_of_minions parameter, which defaults to 2).
(as specified by the number_of_minions parameter, which defaults to 3).
parameters:
plugin_version:
@ -44,7 +44,7 @@ parameters:
number_of_minions:
type: number
description: how many kubernetes minions to spawn initially
default: 1
default: 3
max_number_of_minions:
type: number

8
cluster/openstack/util.sh
View File

@ -144,10 +144,14 @@ function add-keypair() {
# IMAGE_PATH
# OPENSTACK_IMAGE_NAME
function create-glance-image() {
if [ $CREATE_IMAGE = true ]; then
if [[ ${CREATE_IMAGE} == "true" ]]; then
local image_status=$(nova image-show ${OPENSTACK_IMAGE_NAME} | awk '$2=="id" {print $4}')
if [[ ! $image_status ]]; then
if [[ "${DOWNLOAD_IMAGE}" == "true" ]]; then
mkdir -p ${IMAGE_PATH}
curl -L ${IMAGE_URL_PATH}/${IMAGE_FILE} -o ${IMAGE_PATH}/${IMAGE_FILE} -z ${IMAGE_PATH}/${IMAGE_FILE}
fi
echo "[INFO] Create image ${OPENSTACK_IMAGE_NAME}"
glance image-create --name ${OPENSTACK_IMAGE_NAME} --disk-format ${IMAGE_FORMAT} \
--container-format ${CONTAINER_FORMAT} --file ${IMAGE_PATH}/${IMAGE_FILE}
@ -227,7 +231,7 @@ function run-heat-script() {
function configure-kubectl() {
export KUBE_MASTER_IP=$(nova show "${STACK_NAME}"-master | awk '$3=="network" {print $6}')
export CONTEXT="openstack"
export CONTEXT="openstack-${STACK_NAME}"
export KUBE_BEARER_TOKEN="TokenKubelet"
create-kubeconfig
}