Container Infrastructure Management Service for OpenStack
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magnum/magnum/templates/kubernetes/kubeminion.yaml

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heat_template_version: 2013-05-23
description: >
This is a nested stack that defines a single Kubernetes minion, This stack is
included by an AutoScalingGroup resource in the parent template
(kubecluster.yaml).
parameters:
server_image:
type: string
description: glance image used to boot the server
minion_flavor:
type: string
default: m1.small
description: flavor to use when booting the server
ssh_key_name:
type: string
description: name of ssh key to be provisioned on our server
default: lars
external_network:
type: string
description: uuid/name of a network to use for floating ip addresses
kube_allow_priv:
type: string
description: >
whether or not kubernetes should permit privileged containers.
default: "false"
constraints:
- allowed_values: ["true", "false"]
docker_volume_size:
type: number
description: >
size of a cinder volume to allocate to docker for container/image
storage
default: 25
tls_disabled:
type: boolean
description: whether or not to enable TLS
default: False
kubernetes_port:
type: number
description: >
The port which are used by kube-apiserver to provide Kubernetes
service.
default: 6443
user_token:
type: string
description: token used for communicating back to Magnum for TLS certs
bay_uuid:
type: string
description: identifier for the bay this template is generating
magnum_url:
type: string
description: endpoint to retrieve TLS certs from
# The following are all generated in the parent template.
kube_master_ip:
type: string
description: IP address of the Kubernetes master server.
etcd_server_ip:
type: string
description: IP address of the Etcd server.
fixed_network:
type: string
description: Network from which to allocate fixed addresses.
fixed_subnet:
type: string
description: Subnet from which to allocate fixed addresses.
network_driver:
type: string
description: network driver to use for instantiating container networks
wait_condition_timeout:
type: number
description : >
timeout for the Wait Conditions
registry_enabled:
type: boolean
description: >
Indicates whether the docker registry is enabled.
default: false
registry_port:
type: number
description: port of registry service
default: 5000
registry_username:
type: string
description: username used by docker registry
default: "username"
registry_password:
type: string
description: password used by docker registry
default: "password"
hidden: true
registry_domain:
type: string
description: domain used by docker registry
default: "domain"
registry_trust_id:
type: string
description: trust_id used by docker registry
default: "trust_id"
hidden: true
registry_auth_url:
type: string
description: auth_url for keystone
default: "auth_url"
registry_region:
type: string
description: region of swift service
default: "region"
registry_container:
type: string
description: >
name of swift container which docker registry stores images in
default: "container"
registry_insecure:
type: boolean
description: >
indicates whether to skip TLS verification between registry and backend storage
default: true
registry_chunksize:
type: number
description: >
size fo the data segments for the swift dynamic large objects
default: 5242880
secgroup_kube_minion_id:
type: string
description: ID of the security group for kubernetes minion.
http_proxy:
type: string
description: http proxy address for docker
default: ""
https_proxy:
type: string
description: https proxy address for docker
default: ""
no_proxy:
type: string
description: no proxies for docker
default: ""
resources:
minion_wait_handle:
type: OS::Heat::WaitConditionHandle
minion_wait_condition:
type: OS::Heat::WaitCondition
depends_on: kube-minion
properties:
handle: {get_resource: minion_wait_handle}
timeout: {get_param: wait_condition_timeout}
######################################################################
#
# software configs. these are components that are combined into
# a multipart MIME user-data archive.
#
write_heat_params:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config:
str_replace:
template: {get_file: fragments/write-heat-params.yaml}
params:
$KUBE_ALLOW_PRIV: {get_param: kube_allow_priv}
$KUBE_MASTER_IP: {get_param: kube_master_ip}
$KUBE_API_PORT: {get_param: kubernetes_port}
$ETCD_SERVER_IP: {get_param: etcd_server_ip}
$DOCKER_VOLUME: {get_resource: docker_volume}
$NETWORK_DRIVER: {get_param: network_driver}
$REGISTRY_ENABLED: {get_param: registry_enabled}
$REGISTRY_PORT: {get_param: registry_port}
$REGISTRY_AUTH_URL: {get_param: registry_auth_url}
$REGISTRY_REGION: {get_param: registry_region}
$REGISTRY_USERNAME: {get_param: registry_username}
$REGISTRY_PASSWORD: {get_param: registry_password}
$REGISTRY_DOMAIN: {get_param: registry_domain}
$REGISTRY_TRUST_ID: {get_param: registry_trust_id}
$REGISTRY_CONTAINER: {get_param: registry_container}
$REGISTRY_INSECURE: {get_param: registry_insecure}
$REGISTRY_CHUNKSIZE: {get_param: registry_chunksize}
$TLS_DISABLED: {get_param: tls_disabled}
$BAY_UUID: {get_param: bay_uuid}
$USER_TOKEN: {get_param: user_token}
$MAGNUM_URL: {get_param: magnum_url}
$HTTP_PROXY: {get_param: http_proxy}
$HTTPS_PROXY: {get_param: https_proxy}
$NO_PROXY: {get_param: no_proxy}
write_kubeconfig:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/write-kubeconfig.yaml}
make_cert:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/make-cert-client.sh}
configure_docker_storage:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/configure-docker-storage.sh}
configure_docker_registry:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/configure-docker-registry.sh}
configure_kubernetes_minion:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/configure-kubernetes-minion.sh}
kube_user:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/kube-user.yaml}
kube_examples:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/kube-examples.yaml}
network_service:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/network-service.sh}
enable_services:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/enable-services-minion.sh}
enable_docker_registry:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/enable-docker-registry.sh}
enable_kube_proxy:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/enable-kube-proxy-minion.sh}
minion_wc_notify:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config:
str_replace:
template: |
#!/bin/bash -v
wc_notify --data-binary '{"status": "SUCCESS"}'
params:
wc_notify: {get_attr: [minion_wait_handle, curl_cli]}
disable_selinux:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/disable-selinux.sh}
add_proxy:
type: OS::Heat::SoftwareConfig
properties:
group: ungrouped
config: {get_file: fragments/add-proxy.sh}
kube_minion_init:
type: OS::Heat::MultipartMime
properties:
parts:
- config: {get_resource: disable_selinux}
- config: {get_resource: write_heat_params}
- config: {get_resource: kube_user}
- config: {get_resource: write_kubeconfig}
- config: {get_resource: make_cert}
- config: {get_resource: kube_examples}
- config: {get_resource: configure_docker_storage}
- config: {get_resource: configure_docker_registry}
- config: {get_resource: configure_kubernetes_minion}
- config: {get_resource: network_service}
- config: {get_resource: add_proxy}
- config: {get_resource: enable_services}
- config: {get_resource: enable_kube_proxy}
- config: {get_resource: enable_docker_registry}
- config: {get_resource: minion_wc_notify}
######################################################################
#
# a single kubernetes minion.
# Important: the name for the heat resource kube-minion below must
# not contain "_" (underscore) because it will be used in the
# hostname. Because DNS domain name does not allow "_", the "_"
# will be converted to a "-" and this will make the hostname different
# from the Nova instance name. This in turn will break the load
# balancer feature in Kubernetes.
#
kube-minion:
type: OS::Nova::Server
properties:
image: {get_param: server_image}
flavor: {get_param: minion_flavor}
key_name: {get_param: ssh_key_name}
user_data_format: RAW
user_data: {get_resource: kube_minion_init}
networks:
- port: {get_resource: kube_minion_eth0}
kube_minion_eth0:
type: OS::Neutron::Port
properties:
network: {get_param: fixed_network}
security_groups:
- get_param: secgroup_kube_minion_id
fixed_ips:
- subnet: {get_param: fixed_subnet}
replacement_policy: AUTO
kube_minion_floating:
type: OS::Neutron::FloatingIP
properties:
floating_network: {get_param: external_network}
port_id: {get_resource: kube_minion_eth0}
######################################################################
#
# docker storage. This allocates a cinder volume and attaches it
# to the minion.
#
docker_volume:
type: OS::Cinder::Volume
properties:
size: {get_param: docker_volume_size}
docker_volume_attach:
type: OS::Cinder::VolumeAttachment
properties:
instance_uuid: {get_resource: kube-minion}
volume_id: {get_resource: docker_volume}
mountpoint: /dev/vdb
outputs:
kube_minion_ip:
value: {get_attr: [kube_minion_eth0, fixed_ips, 0, ip_address]}
kube_minion_external_ip:
value: {get_attr: [kube_minion_floating, floating_ip_address]}
OS::stack_id:
value: {get_attr: [kube_minion_eth0, fixed_ips, 0, ip_address]}