219 lines
6.3 KiB
YAML
219 lines
6.3 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-coreos.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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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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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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constraints:
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- allowed_values: ["true", "false"]
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network_driver:
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type: string
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description: network driver to use for instantiating container networks
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tls_disabled:
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type: boolean
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description: whether or not to enable TLS
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kubernetes_port:
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type: number
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description: >
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The port which are used by kube-apiserver to provide Kubernetes
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service.
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kube_version:
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type: string
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description: version of kubernetes used for kubernetes cluster
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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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etcd_server_ip:
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type: string
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description: IP address of the Etcd 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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fixed_subnet:
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type: string
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description: Subnet from which to allocate fixed addresses.
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flannel_network_cidr:
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type: string
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description: network range for flannel overlay network
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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: 6000
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######################################################################
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#
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# security groups. we need to permit network traffic of various
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# sorts.
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#
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secgroup_all_open:
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type: OS::Neutron::SecurityGroup
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properties:
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rules:
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- protocol: icmp
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- protocol: tcp
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- protocol: udp
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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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$WAIT_CURL: {get_attr: [minion_wait_handle, curl_cli]}
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$KUBE_API_PORT: {get_param: kubernetes_port}
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$TLS_DISABLED: {get_param: tls_disabled}
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$NETWORK_DRIVER: {get_param: network_driver}
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$ETCD_SERVER_IP: {get_param: etcd_server_ip}
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$KUBE_VERSION: {get_param: kube_version}
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enable_network_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/enable-network-service-coreos.yaml}
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enable_kubelet:
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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-kubelet-minion-coreos.yaml}
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enable_kube_proxy:
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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-kube-proxy-minion-coreos.yaml}
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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: {get_file: fragments/wc-notify-coreos.yaml}
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kube_minion_init:
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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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$write_heat_params
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$enable_network_service
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$enable_kubelet
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$enable_kube_proxy
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$wc_notify
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coreos:
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units:
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- name: "enable-network-service.service"
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command: "start"
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- name: "enable-kubelet.service"
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command: "start"
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- name: "enable-kube-proxy.service"
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command: "start"
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- name: "wc-notify.service"
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command: "start"
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params:
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"$write_heat_params": {get_attr: [write_heat_params, config]}
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"$enable_network_service": {get_attr: [enable_network_service, config]}
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"$enable_kubelet": {get_attr: [enable_kubelet, config]}
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"$enable_kube_proxy": {get_attr: [enable_kube_proxy, config]}
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"$wc_notify": {get_attr: [wc_notify, config]}
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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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- port: {get_resource: kube_minion_eth0}
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kube_minion_eth0:
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type: OS::Neutron::Port
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properties:
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network: {get_param: fixed_network}
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security_groups:
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- get_resource: secgroup_all_open
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fixed_ips:
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- subnet: {get_param: fixed_subnet}
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allowed_address_pairs:
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- ip_address: {get_param: flannel_network_cidr}
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replacement_policy: AUTO
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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: {get_resource: kube_minion_eth0}
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outputs:
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kube_minion_ip:
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value: {get_attr: [kube_minion_eth0, fixed_ips, 0, ip_address]}
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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_eth0, fixed_ips, 0, ip_address]}
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