246 lines
6.8 KiB
YAML
246 lines
6.8 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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default: CoreOS
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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: testkey
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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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token:
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type: string
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description: token is generated from https://discovery.etcd.io/new
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ssh_authorized_key:
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type: string
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description: complete ssh key.
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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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docker_volume_size:
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type: number
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description: >
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size of a cinder volume to allocate to docker for container/image
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storage
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default: 25
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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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fixed_subnet:
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type: string
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description: Subnet from which to allocate fixed addresses.
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resources:
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minion_wait_handle:
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type: AWS::CloudFormation::WaitConditionHandle
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minion_wait_condition:
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type: AWS::CloudFormation::WaitCondition
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depends_on: kube-minion
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properties:
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Handle:
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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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$WAIT_HANDLE: {get_resource: node_wait_handle}
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$DOCKER_VOLUME: {get_resource: docker_volume}
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coreos_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/coreos.params.yaml}
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params:
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token: {get_param: token}
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ssh_authorized_key: {get_param: ssh_authorized_key}
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add_to_docker_group:
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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/add-to-docker-group.sh}
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configure_docker_storage:
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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-docker-storage.sh}
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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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cfn_signal:
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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/cfn-signal.sh}
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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: add_to_docker_group}
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- config: {get_resource: configure_docker_storage}
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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: cfn_signal}
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- config: {get_resource: coreos_params}
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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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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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docker_volume:
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type: OS::Cinder::Volume
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properties:
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size: {get_param: docker_volume_size}
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docker_volume_attach:
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type: OS::Cinder::VolumeAttachment
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properties:
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instance_uuid: {get_resource: kube-minion}
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volume_id: {get_resource: docker_volume}
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mountpoint: /dev/vdb
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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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