Create Multicloud Deployment from YAML¶

You can create multicloud deployments either from an image or a YAML file.

• Image creation involves filling out a form with various configuration options. It is user-friendly and easy-to-perform, but it requires more steps.
• YAML creation involves configuring the necessary information in a YAML file. It requires fewer steps and is more efficient, but it assumes some backend technical knowledge.

This guide explains how to create a multicloud deployment using a YAML file. If you want to learn about the image creation method, refer to Create Multicloud Deployment from Image.

Prerequisites¶

• Create a Multicloud instance
• Add at least one worker cluster in the multicloud instance. (See Cluster for details)

Steps¶

1. Click Multicloud Workloads -> Deployments , and Create from YAML in the top-right corner.

   

2. Enter or import the YAML file for the Deployment, then click Next .

   The Download button allows you to download the current YAML file and save it locally for future use.

   

3. Enter or import the YAML file for the deployment policy, then click Next .

   

4. Enter or import the YAML file for the override policy, then click OK .

   Note

   The override policy is an optional configuration. If you don't need any override configurations, just leave this field empty and click OK .

Then you will be automatically directed to the multicloud deployment list. You can click the ⋮ icon on the right of the list to edit the YAML, pause, restart, or delete the workload.

YAML File Examples¶

The built-in YAML editor can detect your YAML syntax. If there are any errors, they will be marked with a red squiggly line.

Here are some common YAML file examples that you can modify for your own use.

Deployment Example¶

# Kubernetes Deployment
apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-nginx
  labels:
    app: demo-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: demo-nginx
  template:
    metadata:
      labels:
        app: demo-nginx
    spec:
      containers:
      - image: nginx
        name: nginx

Propagation Policy Example¶

# Karmada PropagationPolicy
apiVersion: policy.karmada.io/v1alpha1
kind: PropagationPolicy
metadata:
  name: demo-nginx-pp
  namespace: default    # (1)
spec:
  resourceSelectors:
    - apiVersion: apps/v1
      kind: Deployment
      name: demo-nginx # (2)
   placement:
    clusterAffinities:
      affinityName: default
      clusterNames:
        - demo-stage
        - demo-dev

1. The default namespace is default .
2. If no namespace is specified, the namespace is inherited from the parent object scope.

Override Policy Example¶

# Karmada OverridePolicy
apiVersion: policy.karmada.io/v1alpha1
kind: OverridePolicy
metadata:
  name: demo-nginx-op
spec:
  resourceSelectors:
    - apiVersion: apps/v1
      kind: Deployment
      name: demo-nginx
  overrideRules:
    - targetCluster:
        clusterNames:
          - demo-dev
      overriders:
        plaintext:
          - path: "/metadata/labels/env"
            operator: add
            value: demo-dev
    - targetCluster:
        clusterNames:
          - demo-stage
      overriders:
        plaintext:
          - path: "/metadata/labels/env"
            operator: add
            value: demo-stage

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