openstack-heat编排模板使用测试

基于 openstack stein版本heat，测试编排，测试通过

Heat 编排

Heat 目前支持两种格式的模板，一种是基于 JSON 格式的 CFN 模板；另外一种是基于 YAML 格式的 HOT 模板。CFN 模板主要是为了保持对 AWS 的兼容性。HOT 模板是 Heat 自有的，资源类型更加丰富，更能体现出 Heat 特点的模板。

一个典型的 HOT 模板由下列元素构成：

  • 模板版本：必填字段，指定所对应的模板版本，Heat 会根据版本进行检验。
  • 参数列表：选填，指输入参数列表。
  • 资源列表：必填，指生成的 Stack 所包含的各种资源。可以定义资源间的依赖关系，比如说生成 Port，然后再用 port 来生成 VM。
  • 输出列表：选填，指生成的 Stack 暴露出来的信息，可以用来给用户使用，也可以用来作为输入提供给其它的 Stack。
需求1 - 云盘单台编排

1.创建一个虚拟机，要求虚拟机自定义镜像、flavor、network、可用域和安全组；
2.创建一个数据卷，要求数据卷自定义存储类型、可用域和块容量；
3.将数据卷挂载给虚拟机；
4.要求所有资源通过参数传入；
5.要求返回属性包含虚拟机uuid、ip地址和vnc地址；

这个需求很简单，我们只需要查下Heat支持的模板类型，很快就可以找到只需要三个类型就可以满足需求

  • type: OS::Nova::Server
  • type: OS::Cinder::Volume
  • type: OS::Cinder::Volume

模板如下：

CREATE_VM_VOLUME_AND_ATTATCH.yaml
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heat_template_version: 2013-05-23

description:  Template for Create VM

parameters:
  image_id:
    type: string
    description:  Image ID or image name to use for the server
    constraints:
      - custom_constraint: glance.image
 
  secgroup_id:
    type: string
    description : Id of the security groupe

  network_id:
    type: string
    description: network id
 
  flavor_id:
    type: string
    description: Flavor for the server to be created 
    constraints:
      - custom_constraint: nova.flavor
   
  server_az:
    type: string
    description: Availablity zone of the VM
    default: nova

  volume_size:
    type: number
    description: Size of volume to attach to VM
    default: 1
    constraints:
      - range: { min: 1, max: 200 }
 
  volume_type:
    type: string
    description: If specified, the type of volume to use, mapping to a specific backend.
    default: sata
  volume_az:
    type: string
    default: nova
  server_name:
    type: string
    description: VM Name
    default: heat-stack-default

resources:
  server:
    type: OS::Nova::Server
    properties:
      name: { get_param: server_name }
      availability_zone: { get_param: server_az }
      image: { get_param: image_id }
      flavor: { get_param: flavor_id }
      networks: 
      - network: { get_param: network_id }
      security_groups: 
      - { get_param: secgroup_id }

  volume:
    type: OS::Cinder::Volume
    properties:
      size: { get_param: volume_size }
      volume_type: { get_param: volume_type }
      availability_zone: { get_param: volume_az }
      description: Volume for stack

  volume_attachment:
    type: OS::Cinder::VolumeAttachment
    properties:
      volume_id: { get_resource: volume }
      instance_uuid: { get_resource: server }
  
outputs:
  server_id:
    value: { get_resource: server }
  server_ip:
    description: Network IP address of server
    value: { get_attr: [ server, first_address ] }
  novnc_console_url:
    value: { get_attr: [server, console_urls, novnc] }
    description: novnc console URLs for the server
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#openstack stack create -t CREATE_VM_VOLUME_AND_ATTACH.yaml \
--parameter volume_type=sata \
--parameter volume_az=nova \
--parameter volume_size=50 \
--parameter image_id=eef3ab2f-3c8f-4530-8806-15aa7603ba2f  \
--parameter secgroup_id=de99ad74-aa45-44fc-bee3-0f29c7005abb  \
--parameter network_id=92ef8068-46ba-4db7-b5d0-dcef1089efb2 \
--parameter flavor_id=ecs.small \
--parameter server_az=nova \
--parameter server_name=t-server-demo \
heat-test
需求2 - 云盘多台编排

1.在需求1的基础上添加批量创建资源，要求自定义数量
2.要求引入需求1的模板
3.要求返回一个批次stack里面的虚拟机uuid、虚拟机ip和vnc请求地址

这里我们需要学习一个新的资源类型OS::Heat::ResourceGroup,从名称就能够大概猜到该资源的作用：资源组，组内可以包括一个或多个相同的嵌套资源。

Multi_Num_VM_VOLUME_ATTACHE.yaml
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heat_template_version: 2013-05-23

description:  Template for Create VM Volume,the Volume will be auto Attached by heat.

parameters:
  
  num_resources:
    type: number
    description: Numbers of Resrouce 
    default: 1
    constraints:
      - range: { min: 1, max: 10 }

  image_id:
    type: string
    description: ID of the image to use for the instance to be created.
    constraints:
      - custom_constraint: glance.image

  secgroup_id:
    type: string
    description : Id of the security groupe

  network_id:
    type: string
    description: network id

  flavor_id:
    type: string
    description: Flavor for the server to be created
    constraints:
      - custom_constraint: nova.flavor

  server_az:
    type: string
    description: Availablity Zone of the VM
    default: nova

  volume_size:
    type: number
    description: Size of volume to attach to VM
    default: 1
    constraints:
      - range: { min: 1, max: 200 }

  volume_type:
    type: string
    description: If specified, the type of volume to use, mapping to a specific backend.

  volume_az:
    type: string
    description: Availability Zone of the Volumes


resources:
  resgroup:  
    type: OS::Heat::ResourceGroup  
    properties:  
      count: { get_param: num_resources }
      resource_def:
        type: CREATE_VM_VOLUME_AND_ATTACH.yaml   #在这里引入了需求1的模板
        properties:
          server_name: heat-vm-%index%
          image_id: { get_param: image_id }
          secgroup_id: { get_param: secgroup_id }
          network_id: { get_param: network_id }
          flavor_id: { get_param: flavor_id }
          server_az: { get_param: server_az }
          volume_size: { get_param: volume_size }
          volume_type: { get_param: volume_type }
          volume_az: { get_param: volume_az }
 
outputs:  
  myrefs:  
    value: {get_attr: [resgroup, refs]}  
  server_ids:
    value: {get_attr: [resgroup, server_id]}
  server_ips:
    value: {get_attr: [resgroup, server_ip]}
  server_novnc_urls:
    value: {get_attr: [resgroup, novnc_console_url]}
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#openstack stack create -t Multi_Num_VM_VOLUME_ATTACH.yaml \
--parameter volume_type=sata \
--parameter volume_az=nova \
--parameter volume_size=50 \
--parameter image_id=eef3ab2f-3c8f-4530-8806-15aa7603ba2f  \
--parameter secgroup_id=de99ad74-aa45-44fc-bee3-0f29c7005abb  \
--parameter network_id=92ef8068-46ba-4db7-b5d0-dcef1089efb2 \
--parameter flavor_id=ecs.small \
--parameter server_az=nova \
--parameter num_resources=3 \
heat-test2

需求3 - 本地盘单台编排

CREATE_VM_LOCAL_STORAGE.yaml
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heat_template_version: 2013-05-23

description:  Template for Create VM

parameters:
  image_id:
    type: string
    description:  Image ID or image name to use for the server
    constraints:
      - custom_constraint: glance.image
 
  secgroup_id:
    type: string
    description : Id of the security groupe

  network_id:
    type: string
    description: network id
 
  flavor_id:
    type: string
    description: Flavor for the server to be created 
    constraints:
      - custom_constraint: nova.flavor
   
  server_az:
    type: string
    description: Availablity zone of the VM
    default: nova
  server_name:
    type: string
    description: VM Name
    default: heat-stack-default
resources:
  server:
    type: OS::Nova::Server
    properties:
      availability_zone: { get_param: server_az }
      image: { get_param: image_id }
      flavor: { get_param: flavor_id }
      networks: 
      - network: { get_param: network_id }
      security_groups: 
      - { get_param: secgroup_id }

 
outputs:
  server_id:
    value: { get_resource: server }
  server_ip:
    description: Network IP address of server
    value: { get_attr: [ server, first_address ] }
  novnc_console_url:
    value: { get_attr: [server, console_urls, novnc] }
    description: novnc console URLs for the server
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#openstack stack create -t CREATE_VM_LOCAL_STORAGE.yaml \
--parameter image_id=eef3ab2f-3c8f-4530-8806-15aa7603ba2f  \
--parameter secgroup_id=de99ad74-aa45-44fc-bee3-0f29c7005abb  \
--parameter network_id=92ef8068-46ba-4db7-b5d0-dcef1089efb2 \
--parameter flavor_id=ecs.small_L \
--parameter server_az=nova \
--parameter server_name=t-server-demo-local \
heat-local-test

需求4 - 本地盘多台编排

Multi_Num_VM_LOCAL_STORAG.yaml
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heat_template_version: 2013-05-23

description:  Template for Create VM Volume,the Volume will be auto Attached by heat.

parameters:
  
  num_resources:
    type: number
    description: Numbers of Resrouce 
    default: 1
    constraints:
      - range: { min: 1, max: 10 }

  image_id:
    type: string
    description: ID of the image to use for the instance to be created.
    constraints:
      - custom_constraint: glance.image

  secgroup_id:
    type: string
    description : Id of the security groupe

  network_id:
    type: string
    description: network id

  flavor_id:
    type: string
    description: Flavor for the server to be created
    constraints:
      - custom_constraint: nova.flavor

  server_az:
    type: string
    description: Availablity Zone of the VM
    default: nova


resources:
  resgroup:  
    type: OS::Heat::ResourceGroup  
    properties:  
      count: { get_param: num_resources }
      resource_def:
        type: CREATE_VM_LOCAL_STORAGE.yaml   #在这里引入了需求1的模板
        properties:
          server_name: heat-vm-local-%index%
          image_id: { get_param: image_id }
          secgroup_id: { get_param: secgroup_id }
          network_id: { get_param: network_id }
          flavor_id: { get_param: flavor_id }
          server_az: { get_param: server_az }
 
outputs:  
  myrefs:  
    value: {get_attr: [resgroup, refs]}  
  server_ids:
    value: {get_attr: [resgroup, server_id]}
  server_ips:
    value: {get_attr: [resgroup, server_ip]}
  server_novnc_urls:
    value: {get_attr: [resgroup, novnc_console_url]}
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#openstack stack create -t Multi_Num_VM_LOCAL_STORAG.yaml  \
--parameter image_id=eef3ab2f-3c8f-4530-8806-15aa7603ba2f  \
--parameter secgroup_id=de99ad74-aa45-44fc-bee3-0f29c7005abb  \
--parameter network_id=92ef8068-46ba-4db7-b5d0-dcef1089efb2 \
--parameter flavor_id=ecs.small_L \
--parameter server_az=nova \
--parameter num_resources=3 \
heat-local-test2
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JSON post
{
	"stack_name": "heat-local-test2",
	"disable_rollback": true,
	"parameters": {
		"image_id": "eef3ab2f-3c8f-4530-8806-15aa7603ba2f",
		"secgroup_id": "de99ad74-aa45-44fc-bee3-0f29c7005abb",
		"network_id": "92ef8068-46ba-4db7-b5d0-dcef1089efb2",
		"flavor_id": "ecs.small_L",
		"server_az": "nova",
		"num_resources": "3"
	},
	"template": {
		"heat_template_version": "2013-05-23",
		"description": "Template for Create VM Volume,the Volume will be auto Attached by heat.",
		"parameters": {
			"num_resources": {
				"type": "number",
				"description": "Numbers of Resrouce",
				"default": 1,
				"constraints": [{
					"range": {
						"min": 1,
						"max": 10
					}
				}]
			},
			"image_id": {
				"type": "string",
				"description": "ID of the image to use for the instance to be created.",
				"constraints": [{
					"custom_constraint": "glance.image"
				}]
			},
			"secgroup_id": {
				"type": "string",
				"description": "Id of the security groupe"
			},
			"network_id": {
				"type": "string",
				"description": "network id"
			},
			"flavor_id": {
				"type": "string",
				"description": "Flavor for the server to be created",
				"constraints": [{
					"custom_constraint": "nova.flavor"
				}]
			},
			"server_az": {
				"type": "string",
				"description": "Availablity Zone of the VM",
				"default": "nova"
			}
		},
		"resources": {
			"resgroup": {
				"type": "OS::Heat::ResourceGroup",
				"properties": {
					"count": {
						"get_param": "num_resources"
					},
					"resource_def": {
						"type": "file:///opt/kolla-ansible-deploy/openstack/qcloud/dev/bjyt_region_1/CREATE_VM_LOCAL_STORAGE.yaml",
						"properties": {
							"image_id": {
								"get_param": "image_id"
							},
							"secgroup_id": {
								"get_param": "secgroup_id"
							},
							"network_id": {
								"get_param": "network_id"
							},
							"flavor_id": {
								"get_param": "flavor_id"
							},
							"server_az": {
								"get_param": "server_az"
							}
						}
					}
				}
			}
		},
		"outputs": {
			"myrefs": {
				"value": {
					"get_attr": ["resgroup", "refs"]
				}
			},
			"server_ids": {
				"value": {
					"get_attr": ["resgroup", "server_id"]
				}
			},
			"server_ips": {
				"value": {
					"get_attr": ["resgroup", "server_ip"]
				}
			},
			"server_novnc_urls": {
				"value": {
					"get_attr": ["resgroup", "novnc_console_url"]
				}
			}
		}
	},
	"files": {
		"file:///opt/kolla-ansible-deploy/openstack/dev/bjyt_region_1/CREATE_VM_LOCAL_STORAGE.yaml": "{\"heat_template_version\": \"2013-05-23\", \"description\": \"Template for Create VM\", \"parameters\": {\"image_id\": {\"type\": \"string\", \"description\": \"Image ID or image name to use for the server\", \"constraints\": [{\"custom_constraint\": \"glance.image\"}]}, \"secgroup_id\": {\"type\": \"string\", \"description\": \"Id of the security groupe\"}, \"network_id\": {\"type\": \"string\", \"description\": \"network id\"}, \"flavor_id\": {\"type\": \"string\", \"description\": \"Flavor for the server to be created\", \"constraints\": [{\"custom_constraint\": \"nova.flavor\"}]}, \"server_az\": {\"type\": \"string\", \"description\": \"Availablity zone of the VM\", \"default\": \"nova\"}}, \"resources\": {\"server\": {\"type\": \"OS::Nova::Server\", \"properties\": {\"availability_zone\": {\"get_param\": \"server_az\"}, \"image\": {\"get_param\": \"image_id\"}, \"flavor\": {\"get_param\": \"flavor_id\"}, \"networks\": [{\"network\": {\"get_param\": \"network_id\"}}], \"security_groups\": [{\"get_param\": \"secgroup_id\"}]}}}, \"outputs\": {\"server_id\": {\"value\": {\"get_resource\": \"server\"}}, \"server_ip\": {\"description\": \"Network IP address of server\", \"value\": {\"get_attr\": [\"server\", \"first_address\"]}}, \"novnc_console_url\": {\"value\": {\"get_attr\": [\"server\", \"console_urls\", \"novnc\"]}, \"description\": \"novnc console URLs for the server\"}}}"
	},
	"environment": {}
}

更多

经过以上两个实例，我相信大多数人对Heat编排都有一个大致了解，其实编排不难，难的是资源逻辑的整合。现在社区里面有一些开源的Heat模板，里面几乎包含了大部分的高级用法。感兴趣的朋友可以去了解下

1
$ git clone git://git.openstack.org/openstack/heat-templates

参考：https://www.jianshu.com/p/1f2482792683