Crossplane

In this documentation, we will use Alibaba Cloud's RDS (Relational Database Service), and Alibaba Cloud's OSS (Object Storage System) as examples to show how to enable cloud services as part of the application deployment.

These cloud services are provided by Crossplane.

Prepare Crossplane

Please Refer to [Installation](https://github.com/crossplane/provider-alibaba/releases/tag/v0.5.0) to install Crossplane Alibaba provider v0.5.0.

If you'd like to configure any other Crossplane providers, please refer to Crossplane Select a Getting Started Configuration.

$ kubectl crossplane install provider crossplane/provider-alibaba:v0.5.0

# Note the xxx and yyy here is your own AccessKey and SecretKey to the cloud resources.

$ kubectl create secret generic alibaba-account-creds -n crossplane-system --from-literal=accessKeyId=xxx --from-literal=accessKeySecret=yyy

$ kubectl apply -f provider.yaml

provider.yaml is as below.

apiVersion: v1

kind: Namespace

metadata:

name: crossplane-system

---

apiVersion: alibaba.crossplane.io/v1alpha1

kind: ProviderConfig

metadata:

name: default

spec:

credentials:

source: Secret

secretRef:

namespace: crossplane-system

name: alibaba-account-creds

key: credentials

region: cn-beijing

Register alibaba-rds Component

apiVersion: core.oam.dev/v1beta1

kind: ComponentDefinition

metadata:

name: alibaba-rds

namespace: vela-system

annotations:

definition.oam.dev/description: "Alibaba Cloud RDS Resource"

spec:

workload:

definition:

apiVersion: database.alibaba.crossplane.io/v1alpha1

kind: RDSInstance

schematic:

cue:

template: |

output: {

apiVersion: "database.alibaba.crossplane.io/v1alpha1"

kind: "RDSInstance"

spec: {

forProvider: {

engine: parameter.engine

engineVersion: parameter.engineVersion

dbInstanceClass: parameter.instanceClass

dbInstanceStorageInGB: 20

securityIPList: "0.0.0.0/0"

masterUsername: parameter.username

}

writeConnectionSecretToRef: {

namespace: context.namespace

name: parameter.secretName

}

providerConfigRef: {

name: "default"

}

deletionPolicy: "Delete"

}

}

parameter: {

// +usage=RDS engine

engine: *"mysql" | string

// +usage=The version of RDS engine

engineVersion: *"8.0" | string

// +usage=The instance class for the RDS

instanceClass: *"rds.mysql.c1.large" | string

// +usage=RDS username

username: string

// +usage=Secret name which RDS connection will write to

secretName: string

}

Register alibaba-oss Component

apiVersion: core.oam.dev/v1beta1

kind: ComponentDefinition

metadata:

name: alibaba-oss

namespace: vela-system

annotations:

definition.oam.dev/description: "Alibaba Cloud RDS Resource"

spec:

workload:

definition:

apiVersion: oss.alibaba.crossplane.io/v1alpha1

kind: Bucket

schematic:

cue:

template: |

output: {

apiVersion: "oss.alibaba.crossplane.io/v1alpha1"

kind: "Bucket"

spec: {

name: parameter.name

acl: parameter.acl

storageClass: parameter.storageClass

dataRedundancyType: parameter.dataRedundancyType

writeConnectionSecretToRef: {

namespace: context.namespace

name: parameter.secretName

}

providerConfigRef: {

name: "default"

}

deletionPolicy: "Delete"

}

}

parameter: {

// +usage=OSS bucket name

name: string

// +usage=The access control list of the OSS bucket

acl: *"private" | string

// +usage=The storage type of OSS bucket

storageClass: *"Standard" | string

// +usage=The data Redundancy type of OSS bucket

dataRedundancyType: *"LRS" | string

// +usage=Secret name which RDS connection will write to

secretName: string

}