应用纳管和灰度发布：谐云基于 KubeVela 的企业级云原生实践

# Code generated by KubeVela templates. DO NOT EDIT. Please edit the original cue file.
apiVersion: core.oam.dev/v1beta1
kind: TraitDefinition
metadata:
  annotations:
    definition.oam.dev/description: Add nodeAffinity for your Workload
  name: hc.node-affinity
  namespace: vela-system
spec:
  appliesToWorkloads:
  - hc.deployment
  podDisruptive: true
  schematic:
    cue:
      template: |
        parameter: {
          isRequired: bool
          labels: [string]: string
        }
        patch: spec: template: spec: affinity: nodeAffinity: {
          if parameter.isRequired == true {
            // +patchKey=matchExpressions
            requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: [
              for k, v in parameter.labels {
                {
                  matchExpressions: [
                    {
                      key:      k
                      operator: "In"
                      values: [v]
                    },
                  ]
                }
              },
            ]
          }
          if parameter.isRequired == false {
            // +patchKey=preference
            preferredDuringSchedulingIgnoredDuringExecution: [
              for k, v in parameter.labels {
                {
                  weight: 50
                  preference: matchExpressions: [{
                    key:      k
                    operator: "In"
                    values: [v]
                  }]
                }
              },
            ]
          }
        }

apiVersion: application.decompile.harmonycloud.cn/v1alpha1
kind: DecompileConfig
metadata:
  annotations:
    "application.decompile.harmonycloud.cn/description": "decompiling deployment node affinity to application"
  labels:
    "decompiling/apply": "true"
    "decompiling/type": "node-affinity"
  name: node-affinity-decompile
  namespace: vela-system
spec:
  targetResource:
    - deployment
  schematic:
    cue:
      template: |
        package decompile
        import (
          "k8s.io/api/apps/v1"
          core "k8s.io/api/core/v1"
        )
        parameter: {
          deployment: v1.#Deployment
        }
        #getLabels: {
          x="in": core.#NodeSelectorTerm
          out: [string]: string
          if x.matchExpressions != _|_ {
            for requirement in x.matchExpressions {
              key: requirement.key
              if requirement.operator == "In" {
                if requirement.values == _|_ {
                  out: "\(key)": ""
                }
                if requirement.values != _|_ {
                  for i, v in requirement.values {
                    if i == 0 {
                      out: "\(key)": v
                    }
                  }
                }
              }
            }
          }
          if x.matchFields != _|_ {
            for requirement in x.matchFields {
              if requirement.operator == "In" {
                if requirement.values == _|_ {
                  out: "\(requirement.key)": ""
                }
                if requirement.values != _|_ {
                  for i, v in requirement.values {
                    if i == 0 {
                      out: "\(requirement.key)": v
                    }
                  }
                }
              }
            }
          }
        }
        #outputParameter: {
          isRequired: bool
            labels: [string]: string
        }
        #decompiling: {
          x="in": v1.#Deployment
          out?: #outputParameter
          if x.spec != _|_ && x.spec.template.spec != _|_ && x.spec.template.spec.affinity != _|_ && x.spec.template.spec.affinity.nodeAffinity != _|_  {
            nodeAffinity: x.spec.template.spec.affinity.nodeAffinity
            if nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution != _|_ {
              out: isRequired: true
              for term in nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution.nodeSelectorTerms {
                result: #getLabels & {in: term}
                if result.out != _|_ {
                  for k, v in result.out {
                    out: labels: {
                      "\(k)": "\(v)"
                    }
                  }
                }
              }
            }
            if nodeAffinity.preferredDuringSchedulingIgnoredDuringExecution != _|_ {
              out: isRequired: false
              for schedulingTerm in nodeAffinity.preferredDuringSchedulingIgnoredDuringExecution {
                if schedulingTerm.preference != _|_ {
                  result: #getLabels & {in: schedulingTerm.preference}
                  if result.out != _|_ {
                    for k, v in result.out {
                      out: labels: {
                        "\(k)": "\(v)"
                      }
                    }
                  }
                }
              }
            }
          }
        }
        result: #decompiling & {in: parameter.deployment}
        output: traits: [
          if result.out != _|_ {
            {
              type: "hc.node-affinity"
              properties: #outputParameter & result.out
            }
          }
        ]

apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-app
  namespace: demo
spec:
  replicas: 1
  selector:
    matchLabels:
      app: demo-app
  template:
    metadata:
      labels:
        app: demo-app
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: area
                operator: In
                values:
                - east
      containers:
      - image: 10.120.1.233:8443/library/nginx:1.21
        name: nginx
        ports:
        - containerPort: 80
          protocol: TCP

{
  "code": 0,
  "message": "success",
  "data": {
    "components": [
      {
        "name": "demo-app",
        "type": "hc.deployment",
        "properties": {
          "initContainers": [],
          "containers": [
            {
              "name": "nginx",
              "image": "10.120.1.233:8443/library/nginx:1.21",
              "imagePullPolicy": "IfNotPresent",
              "ports": [
                {
                  "port": 80,
                  "protocol": "TCP"
                }
              ]
            }
          ]
        },
        "traits": [
          {
            "type": "hc.dns",
            "properties": {
              "dnsPolicy": "ClusterFirst"
            }
          },
          {
            "type": "hc.node-affinity",
            "properties": {
              "isRequired": true,
              "labels": {
                "area": "east"
              }
            }
          },
          {
            "type": "hc.manualscaler",
            "properties": {
              "replicas": 1
            }
          }
        ]
      }
    ]
  }
}