Agent skill

crossplane

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Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/crossplane

SKILL.md

馃攢 Skill: Crossplane Multi-Cloud Management

馃搵 Metadata

Atributo Valor
ID cicd-crossplane
Nivel 馃敶 Avanzado
Versi贸n 1.0.0
Keywords crossplane, multi-cloud, kubernetes, infrastructure

馃攽 Keywords

  • crossplane, multi-cloud, k8s-native, infrastructure-api, @skill:crossplane

馃摉 Descripci贸n

Crossplane extiende Kubernetes para gestionar infraestructura cloud usando custom resources. Permite provisioning declarativo multi-cloud para backends Flutter usando APIs de Kubernetes.

馃捇 Implementaci贸n

1. Install Crossplane

bash
# Install Crossplane
helm repo add crossplane-stable https://charts.crossplane.io/stable
helm repo update

helm install crossplane \
  crossplane-stable/crossplane \
  --namespace crossplane-system \
  --create-namespace

# Verify installation
kubectl get pods -n crossplane-system

2. Install Provider (AWS Example)

yaml
# aws-provider.yaml
apiVersion: pkg.crossplane.io/v1
kind: Provider
metadata:
  name: provider-aws
spec:
  package: xpkg.upbound.io/upbound/provider-aws:v0.40.0
bash
kubectl apply -f aws-provider.yaml

# Configure AWS credentials
kubectl create secret generic aws-creds \
  -n crossplane-system \
  --from-file=credentials=./aws-credentials.txt

# Create ProviderConfig
kubectl apply -f - <<EOF
apiVersion: aws.upbound.io/v1beta1
kind: ProviderConfig
metadata:
  name: default
spec:
  credentials:
    source: Secret
    secretRef:
      namespace: crossplane-system
      name: aws-creds
      key: credentials
EOF

3. Provision RDS Database

yaml
# rds-instance.yaml
apiVersion: rds.aws.upbound.io/v1beta1
kind: Instance
metadata:
  name: myapp-postgres
spec:
  forProvider:
    region: us-east-1
    dbInstanceClass: db.t3.micro
    engine: postgres
    engineVersion: "15.4"
    allocatedStorage: 20
    storageType: gp3
    storageEncrypted: true
    username: admin
    passwordSecretRef:
      name: db-password
      namespace: default
      key: password
    multiAz: true
    backupRetentionPeriod: 7
    skipFinalSnapshot: false
  providerConfigRef:
    name: default

4. Provision S3 Bucket

yaml
# s3-bucket.yaml
apiVersion: s3.aws.upbound.io/v1beta1
kind: Bucket
metadata:
  name: myapp-storage-prod
spec:
  forProvider:
    region: us-east-1
    versioning:
      - enabled: true
    serverSideEncryptionConfiguration:
      - rule:
          - applyServerSideEncryptionByDefault:
              - sseAlgorithm: AES256
  providerConfigRef:
    name: default

5. Composite Resource Definition (XRD)

yaml
# backend-xrd.yaml
apiVersion: apiextensions.crossplane.io/v1
kind: CompositeResourceDefinition
metadata:
  name: xbackends.myapp.io
spec:
  group: myapp.io
  names:
    kind: XBackend
    plural: xbackends
  claimNames:
    kind: Backend
    plural: backends
  versions:
  - name: v1alpha1
    served: true
    referenceable: true
    schema:
      openAPIV3Schema:
        type: object
        properties:
          spec:
            type: object
            properties:
              parameters:
                type: object
                properties:
                  environment:
                    type: string
                    enum: [dev, staging, production]
                  dbSize:
                    type: string
                    enum: [small, medium, large]
                  storageSize:
                    type: integer
                required:
                - environment
                - dbSize

6. Composition

yaml
# backend-composition.yaml
apiVersion: apiextensions.crossplane.io/v1
kind: Composition
metadata:
  name: backend-aws
spec:
  compositeTypeRef:
    apiVersion: myapp.io/v1alpha1
    kind: XBackend

  resources:
  - name: database
    base:
      apiVersion: rds.aws.upbound.io/v1beta1
      kind: Instance
      spec:
        forProvider:
          region: us-east-1
          engine: postgres
          engineVersion: "15.4"
    patches:
    - fromFieldPath: spec.parameters.dbSize
      toFieldPath: spec.forProvider.dbInstanceClass
      transforms:
      - type: map
        map:
          small: db.t3.micro
          medium: db.t3.small
          large: db.t3.medium

  - name: storage
    base:
      apiVersion: s3.aws.upbound.io/v1beta1
      kind: Bucket
      spec:
        forProvider:
          region: us-east-1
    patches:
    - fromFieldPath: spec.parameters.environment
      toFieldPath: metadata.labels.environment

7. Claim Backend Resources

yaml
# backend-claim.yaml
apiVersion: myapp.io/v1alpha1
kind: Backend
metadata:
  name: myapp-production
  namespace: default
spec:
  parameters:
    environment: production
    dbSize: large
    storageSize: 100
  compositionSelector:
    matchLabels:
      provider: aws

8. Multi-Cloud Support

yaml
# Install multiple providers
---
apiVersion: pkg.crossplane.io/v1
kind: Provider
metadata:
  name: provider-aws
spec:
  package: xpkg.upbound.io/upbound/provider-aws:v0.40.0
---
apiVersion: pkg.crossplane.io/v1
kind: Provider
metadata:
  name: provider-gcp
spec:
  package: xpkg.upbound.io/upbound/provider-gcp:v0.40.0
---
apiVersion: pkg.crossplane.io/v1
kind: Provider
metadata:
  name: provider-azure
spec:
  package: xpkg.upbound.io/upbound/provider-azure:v0.40.0

馃幆 Mejores Pr谩cticas

  1. Use Compositions para abstraer cloud providers
  2. XRDs para APIs consistentes
  3. GitOps con ArgoCD para gesti贸n
  4. RBAC para control de acceso
  5. Policy con OPA para governance
  6. Observability con Prometheus
  7. Multi-tenancy con namespaces

馃摎 Recursos

Versi贸n: 1.0.0

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