175 lines
4.9 KiB
YAML
175 lines
4.9 KiB
YAML
heat_template_version: 2013-05-23
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description: >
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This is a nested stack that defines a single Kubernetes minion,
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based on a vanilla Fedora 20 cloud image. This stack is included by
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a ResourceGroup resource in the parent template (kubecluster.yaml).
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parameters:
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server_image:
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type: string
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description: glance image used to boot the server
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minion_flavor:
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type: string
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default: m1.small
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description: flavor to use when booting the server
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ssh_key_name:
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type: string
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description: name of ssh key to be provisioned on our server
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default: lars
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external_network:
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type: string
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description: uuid/name of a network to use for floating ip addresses
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kube_allow_priv:
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type: string
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description: >
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whether or not kubernetes should permit privileged containers.
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default: "false"
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constraints:
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- allowed_values: ["true", "false"]
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# The following are all generated in the parent template.
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kube_master_ip:
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type: string
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description: IP address of the Kubernetes master server.
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fixed_network:
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type: string
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description: Network from which to allocate fixed addresses.
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wait_condition_timeout:
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type: number
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default: 6000
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description : >
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timeout for the Wait Conditions
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resources:
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minion_wait_handle:
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type: OS::Heat::WaitConditionHandle
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minion_wait_condition:
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type: OS::Heat::WaitCondition
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depends_on: kube-minion
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properties:
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handle: {get_resource: minion_wait_handle}
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timeout: {get_param: wait_condition_timeout}
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######################################################################
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#
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# software configs. these are components that are combined into
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# a multipart MIME user-data archive.
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#
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write_heat_params:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config:
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str_replace:
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template: {get_file: fragments/write-heat-params.yaml}
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params:
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$KUBE_ALLOW_PRIV: {get_param: kube_allow_priv}
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$KUBE_MASTER_IP: {get_param: kube_master_ip}
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$WAIT_HANDLE: {get_resource: minion_wait_handle}
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configure_kubernetes_minion:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/configure-kubernetes-minion.sh}
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kube_user:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/kube-user.yaml}
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kube_examples:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/kube-examples.yaml}
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docker_service:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/docker.service.yaml}
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enable_services:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/enable-services-minion.sh}
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minion_wc_notify:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config:
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str_replace:
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template: |
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#!/bin/bash -v
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wc_notify --data-binary '{"status": "SUCCESS"}'
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params:
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wc_notify: {get_attr: [minion_wait_handle, curl_cli]}
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disable_selinux:
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type: OS::Heat::SoftwareConfig
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properties:
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group: ungrouped
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config: {get_file: fragments/disable-selinux.sh}
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kube_minion_init:
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type: OS::Heat::MultipartMime
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properties:
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parts:
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- config: {get_resource: disable_selinux}
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- config: {get_resource: write_heat_params}
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- config: {get_resource: kube_user}
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- config: {get_resource: kube_examples}
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- config: {get_resource: configure_kubernetes_minion}
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- config: {get_resource: docker_service}
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- config: {get_resource: enable_services}
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- config: {get_resource: minion_wc_notify}
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# Important: the name for the heat resource kube-minion below must
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# not contain "_" (underscore) because it will be used in the
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# hostname. Because DNS domain name does not allow "_", the "_"
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# will be converted to a "-" and this will make the hostname different
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# from the Nova instance name. This in turn will break the load
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# balancer feature in Kubernetes.
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kube-minion:
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type: OS::Nova::Server
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properties:
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image: {get_param: server_image}
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flavor: {get_param: minion_flavor}
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key_name: {get_param: ssh_key_name}
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user_data_format: RAW
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user_data: {get_resource: kube_minion_init}
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networks:
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- network: {get_param: fixed_network}
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kube_minion_floating:
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type: OS::Neutron::FloatingIP
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properties:
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floating_network: {get_param: external_network}
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port_id:
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get_attr: [kube-minion, addresses, {get_param: fixed_network}, 0, port]
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outputs:
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kube_minion_ip:
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value: {get_attr: [kube-minion, networks, private, 0]}
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kube_minion_external_ip:
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value: {get_attr: [kube_minion_floating, floating_ip_address]}
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OS::stack_id:
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value: {get_attr: [kube-minion, networks, private, 0]}
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