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- What's New
- Service Overview
- Getting Started
- User Guide
- Best Practices
-
Template Reference
- Resource Formation Service
-
Application Orchestration Service
- Template Introduction
-
List of Elements
- Resource Indexes
- AntiDDos.Service
- AOS.Batch
- AOS.Stack
- APIG.API
- APIG.ApiGroup
- APIG.Throttle
- APM.AutoScaler
- APM.Pinpoint
- CCE.Addon.AutoScaler
- CCE.Cluster
- CCE.ConfigMap
- CCE.DaemonSet
- CCE.Deployment
- CCE.HelmRelease
- CCE.Ingress
- CCE.Job
- CCE.NodePool
- CCE.Pod
- CCE.Secret
- CCE.Service
- CCE.StatefulSet
- CCE.Storage.EVS
- CCE.Storage.OBS
- CCE.Storage.SFS
- CCI.ConfigMap
- CCI.Deployment
- CCI.Ingress
- CCI.Job
- CCI.Namespace
- CCI.Secret
- CCI.Service
- CCI.StatefulSet
- CCI.Storage.EVS
- CCI.Storage.SFS
- CDN.Cache
- CDN.Domain
- CDN.Host
- CDN.Https
- CDN.PreheatJob
- CDN.Referer
- CDN.RefreshJob
- CDN.Source
- DBSS.Instance
- DCS.Redis
- DDS.CommunityReplicaSetOrSingle
- DIS.Stream
- ECS.CloudServer
- ECS.ServerGroup
- ECS.KeyPair
- EVS.NonSharedVolume
- EVS.SharedVolume
- FGS.ApigEventMap
- FGS.CtsEventMap
- FGS.DisEventMap
- FGS.DmsEventMap
- FGS.Function
- FGS.LtsEventMap
- FGS.ObsEventMap
- FGS.TimerEventMap
- FGS.SmnEventMap
- HSS.Instance
- IAM.Agency
- IAM.UserGroup
- MRS.Cluster
- NAT.Instance
- NAT.SNatRule
- OBS.Bucket
- RDS.MySQL
- RDS.MySQL.DataBase
- RDS.MySQL.User
- RDS.PostgreSQL
- SCM.Cert
- ServiceStage.Agent
- ServiceStage.AppGroup
- ServiceStage.ContainerComponent
- ServiceStage.Job
- ServiceStage.StatefulApplication
- ServiceStage.StatelessApplication
- SFS.FileSystem
- SMN.Subscription
- SMN.Topic
- ULB.Healthmonitor
- ULB.Listener
- ULB.LoadBalancer
- ULB.Member
- ULB.Pool
- VPCEndpoint.Endpoint
- VPCEndpoint.EndpointService
- VPC.EIP
- VPC.FirewallGroup
- VPC.FirewallPolicy.Egress
- VPC.FirewallPolicy.Ingress
- VPC.FirewallRule
- VPC.SecurityGroup
- VPC.SecurityGroupRule
- VPC.Subnet
- VPC.VIP
- VPC.VPC
- VSS.WebScan
- WAF.service
-
Data Structure
- AOS.BatchItem
- APIG.BackendApi
- APIG.FuncInfo
- APIG.MockInfo
- APM.AutoscalerAction
- APM.AutoscalerActionParameters
- APM.AutoscalerCondition
- APM.AutoscalerRule
- Basic.KeyValuePair
- Basic.Label
- Basic.LabelSelector
- Basic.NameAndSecretValue
- Basic.NameKeyPair
- Basic.NameValuePair
- CCE.Addon.AutoScaler.Node
- CCE.DataVolume
- CCE.HelmChart
- CCE.Labels
- CCE.NodePool
- CCE.PublicIP
- CCI.Network
- CDN.Source
- CDN.CacheRule
- DCS.InstanceBackupPolicy
- DCS.PeriodicalBackupPlan
- DDS.BackupStrategy
- DDS.CommunityReplicaSetOrSingleMode.Flavor
- DDS.DDSCommunity.DataStore
- DDS.DDSCommunityReplicaOrSingle.Flavor
- ECS.DataVolume
- ECS.EIP
- ECS.ExtendParam
- ECS.MountedVolumes
- ECS.NICS
- ECS.Personality
- ECS.PublicIP
- ECS.RootVolume
- ECS.SecurityGroup
- ECS.ServerTags
- ECS.VolumeExtendParam
- EVS.Metadata
- FGS.Environment
- FGS.OBSFilter
- FGS.VpcConfig
- IAM.Agency.Role
- K8S.PodSecurityContext
- K8S.SecurityContext.SeLinuxOptions
- MRS.BootstrapScripts
- MRS.Components
- MRS.TaskNodeGroups
- MRS.Tags
- MySQL.DBUser
- MySQL.DBLinkedUser
- MySQL.DataBase
- MySQL.DataStore
- MySQL.UserDatabase
- PostgreSQL.DataStore
- RDS.BackupStrategy
- RDS.HA
- RDS.HA.Mysql
- RDS.HA.PostgreSQL
- RDS.Volume
- ULB.StickySession
- VPCEndpoint.Ports
- VPC.BandWidth
- VPC.PublicIP
- VSS.Resource
- WAF.Bandwidth
- WAF.Domain
- WAF.Service
- Appendix
-
API Reference
- Before You Start
-
API
- Calling APIs
-
Stacks
- Listing Events of a Stack
- Obtaining Stack Metadata
- Listing Stacks
- Creating a Stack
- Obtaining a Stack Template
- Listing Stack Resources
- Listing Stack Outputs
- Continuing to Deploy a Stack
- Deploying a Stack
- Deleting a Stack
- Updating a Stack
- Deleting a Stack with Conditions
- Continuing to Roll Back a Stack
- Execution Plans
- Template Analysis
- Template Management
-
Stack Sets
- Listing Stack Sets
- Creating a Stack Set
- Obtaining a Stack Set Template
- Listing Stack Set Operations
- Obtaining Metadata of a Stack Set
- Listing Stack Instances
- Creating Stack Instances
- Deleting Stack Instance Deprecated
- Updating Stack Instances
- Deleting Stack Instances
- Deploying a Stack Set
- Deleting a Stack Set
- Updating a Stack Set
- Obtaining Metadata of a Stack Set Operation
- Obtaining a Stack Instance
- Customized Providers
- Resource Formation - Hook
- Resource Formation - Module Management
- Permissions and Supported Actions
- Appendix
- Change History
- FAQs
- Videos
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Getting Started
- Stack Management
- CTS
-
Template Reference
- Template Introduction
-
List of Elements
- Resource Indexes
- AOS.Stack
- CCE.Addon.AutoScaler
- CCE.Cluster
- CCE.HelmRelease
- CCE.NodePool
- CCE.Pod
- CCE.Storage.OBS
- CCE.Storage.SFS
- DCS.Redis
- ECS.CloudServer
- ECS.KeyPair
- NAT.Instance
- NAT.SNatRule
- OBS.Bucket
- RDS.MySQL
- SFS.FileSystem
- ULB.Healthmonitor
- ULB.Listener
- ULB.LoadBalancer
- ULB.Member
- ULB.Pool
- VPC.EIP
- VPC.SecurityGroup
- VPC.SecurityGroupRule
- VPC.Subnet
- VPC.VPC
-
Data Structure
- AOS.BatchItem
- Basic.KeyValuePair
- Basic.Label
- Basic.LabelSelector
- Basic.NameAndSecretValue
- Basic.NameKeyPair
- Basic.NameValuePair
- CCE.Addon.AutoScaler.Node
- CCE.DataVolume
- CCE.HelmChart
- CCE.Labels
- CCE.NodePool
- CCE.PublicIP
- DCS.InstanceBackupPolicy
- DCS.PeriodicalBackupPlan
- ECS.DataVolume
- ECS.EIP
- ECS.ExtendParam
- ECS.MountedVolumes
- ECS.NICS
- ECS.Personality
- ECS.PublicIP
- ECS.RootVolume
- ECS.SecurityGroup
- ECS.ServerTags
- ECS.VolumeExtendParam
- K8S.PodSecurityContext
- K8S.SecurityContext.SeLinuxOptions
- MySQL.DBUser
- MySQL.DataBase
- MySQL.DataStore
- RDS.BackupStrategy
- RDS.HA.Mysql
- RDS.Volume
- ULB.StickySession
- VPC.BandWidth
- VPC.PublicIP
- Appendix
- FAQs
- Change History
-
API Reference (ME-Abu Dhabi Region)
- Before You Start
- API Overview
- Calling APIs
-
API
- Creating a Template
- Querying a Template List
- Updating a Template
- Deleting a Template
- Downloading a Template
- Querying a Template
- Querying the Input Parameters of a Template
- Creating a Stack
- Deleting a Stack
- Executing a Stack Lifecycle
- Querying a Stack List
- Querying a Stack
- Querying a Stack Element List
- Querying a Stack Element
- Querying a Stack Output
- Querying Stack Input
- Querying the Execution Record of a Stack
- Querying a Stack Execution Record List
- Appendix
- Change History
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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YAML Syntax
YAML is a simple and powerful language. It is designed to make the language easy to read.
Basic Syntax Rules
- Characters are case-sensitive.
- Indentation is used to represent hierarchical relationships.
- Only spaces can be used for indentation.
- The number of spaces used for indentation does not matter. Elements of the same level must be aligned on the left side.
- Lines that start with a number sign (#) are comments.
YAML supports three types of data structures.
- Object: A set of key-value pairs, which is also called mapping, hashes, or dictionary.
- Array: A group of values arranged in sequence, which is also called a sequence or list.
- Scalar: A single and irreducible value, which is the minimum data unit.
Object
An object is a group of key-value pairs. For key: value, the colon (:) must be followed by a space or newline character. The valid expression is as follows:
animal: pets plant: tree
You can also write multiple key-value pairs into an inline object.
hash: {name: Steve, foo: bar}
However, an error occurs in the following scenario:
foo: somebody said I should put a colon here: so I did windows_drive: c:
To resolve the issue, you can use single quotation marks (' '), as shown in the following:
foo: 'somebody said I should put a colon here: so I did' windows_drive: 'c:'
Array
An array is represented by a hyphen (-) and space. The valid expression is as follows:
animal: - Goldfish
You can also use the inline representation.
animal: [Cat, Dog, Goldfish]
Objects and arrays can be used in combination to form a composite structure.
languages: - Ruby - Perl - Python websites: YAML: yaml.org Ruby: ruby-lang.org Python: python.org Perl: use.perl.org
Scalar
Scalar data types include string, Boolean value, integer, floating-point number, null, time, and date.
- String:
By default, a string is not enclosed in quotation marks.
str: This_is_a_line
If a string contains spaces or special characters, the string needs to be enclosed in quotation marks.
str: 'content: a string'
Both single and double quotation marks can be used. The difference between them is that the former can identify escape characters while the latter cannot convert special characters.
s1: 'content:\n a string' s2: "content:\n a string"
If there is a single quotation mark between two single quotation marks, ensure that two single quotation marks are used consecutively to achieve conversion.
str: 'labor''s day'
Strings can be written into multiple lines. The lines except the first line must be indented with one space. The newline character will be converted to a space.
str: This_is a_multi_line
- Integer:
int_value: 314
- Floating-point number:
float_value: 3.14
- Null:
parent: ~
- Time:
The time is in the ISO8601 format.
iso8601: 2018-12-14t21:59:43.10-05:00
- Date:
The date is in the compound ISO8601 format: year-month-day.
date: 1976-07-31
Special Symbols
- ---: indicates the start of a YAML file. ...: indicates the end of a YAML file.
--- # A list of delicious fruits - Apple - Strawberry - Mango ...
- You can use two exclamation marks (!) to forcibly convert an integer, a floating-point number, or a Boolean value.
strbool: !!str true strint: !!str 10
- For a string in multiple lines, you can use a literal block scalar (|) to start new lines or folded block scalar (>) to fold new lines. The two symbols are often used in the character strings of YAML files.
this: | Foo Bar that: > Foo Bar
The corresponding objects are as follows:
{ this: 'Foo\nBar\n', that: 'Foo Bar\n' }
It is recommended that "|" be used to meet the requirements of most scenarios.
Comment
YAML supports comments. This is an advantage of YAML compared with JSON.
The comment of YAML starts with a number sign (#), as shown in the following:
languages: - Ruby # Indicates the Ruby language. - Go # Indicates the Go language. -- PythonPy # Indicates the Python language.
Reference Documents
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