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Knative event Brokers and Triggers 事件传递模式实例

时间：2023-11-16 15:11:35浏览次数：26  
标签：Triggers root myproject Brokers wgs push com event Knative

Brokers and Triggers 实例说明

event source: gitlabsource
基于MT通道的broker: default   
trigger trigger-push - > sink event-display-push
  过滤条件： dev.knative.sources.gitlab.push
trigger trigger-tag-push - > sink event-display-tag_push
  过滤条件：dev.knative.sources.gitlab.tag_push

Brokers and Triggers 模型

创建基于mt-channel的broker

broker-default.yaml

apiVersion: eventing.knative.dev/v1
kind: Broker
metadata:
 name: default
 namespace: event-demo

创建 broker 资源

# kubectl apply -f broker-default.yaml
broker.eventing.knative.dev/default created

查看 broker 资源

# kubectl get broker -n event-demo
NAME      URL                                                                       AGE     READY   REASON
default   http://broker-ingress.knative-eventing.svc.wgs.local/event-demo/default   4m19s   True

创建 sink

kservice-event-display-push.yaml

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: event-display-push
  namespace: event-demo-push
spec:
  template:
    metadata:
      annotations:
        autoscaling.knative.dev/min-scale: "1"
    spec:
      containers:
        - image: gcr.dockerproxy.com/knative-releases/knative.dev/eventing/cmd/event_display
          ports:
            - containerPort: 8080

kservice-event-display-tag_push.yaml

apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: event-display-tag-push
  namespace: event-demo-tag-push
spec:
  template:
    metadata:
      annotations:
        autoscaling.knative.dev/min-scale: "1"
    spec:
      containers:
        - image: gcr.dockerproxy.com/knative-releases/knative.dev/eventing/cmd/event_display
          ports:
            - containerPort: 8080

创建 event 资源

# kubectl apply -f kservice-event-display-push.yaml -f kservice-event-display-tag_push.yaml
service.serving.knative.dev/event-display-push created
service.serving.knative.dev/event-display-tag-push created

查看 event 资源

event-display-push

# kubectl get pods -n event-demo-push
NAME                                                   READY   STATUS    RESTARTS   AGE
event-display-push-00001-deployment-69fdbb4c86-lwjnj   2/2     Running   0          54s

event-display-tag-push

# kubectl get pods -n event-demo-tag-push
NAME                                                       READY   STATUS    RESTARTS   AGE
event-display-tag-push-00001-deployment-6df4f7f986-pkn8c   2/2     Running   0          62s

创建 trigger

trigger-filter-push-event.yaml

apiVersion: eventing.knative.dev/v1
kind: Trigger
metadata:
  name: trigger-push
  namespace: event-demo
spec:
  broker: default
  filter:
    attributes:
      type: dev.knative.sources.gitlab.push
  subscriber:
    ref:
      apiVersion: serving.knative.dev/v1
      kind: Service
      name: event-display-push
      namespace: event-demo-push

trigger-filter-tag_push-event.yaml

apiVersion: eventing.knative.dev/v1
kind: Trigger
metadata:
  name: trigger-tag-push
  namespace: event-demo
spec:
  broker: default
  filter:
    attributes:
      type: dev.knative.sources.gitlab.tag_push
  subscriber:
    ref:
      apiVersion: serving.knative.dev/v1
      kind: Service
      name: event-display-tag-push
      namespace: event-demo-tag-push

创建 trigger 资源 

# kubectl apply -f trigger-filter-push-event.yaml -f trigger-filter-tag_push-event.yaml
trigger.eventing.knative.dev/trigger-push created
trigger.eventing.knative.dev/trigger-tag-push created

查看 trigger 资源

# kubectl get trigger -n event-demo
NAME               BROKER    SUBSCRIBER_URI   AGE   READY   REASON
trigger-push       default                    91s           
trigger-tag-push   default                    91s

创建 gitlab source

创建 GitLab Tokens

生成 secretToken

# head -c 16 /dev/urandom | base64
+FmTUzNvthZWSsVrtvAqtQ==

secret-token.yaml

apiVersion: v1
kind: Secret
metadata:
  name: gitlabsecret
  namespace: event-demo
type: Opaque
stringData:
  accessToken: glpat-ksv2Buget9FjyKEoiTRS    # GitLab上的Personal Access Token
  secretToken: +FmTUzNvthZWSsVrtvAqtQ==       # GitLab调用GitLabSource与Webhook Secret

创建 secretToken 资源

# kubectl  apply -f secret-token.yaml

GitLabSource-to-broker.yaml

apiVersion: sources.knative.dev/v1alpha1
kind: GitLabSource
metadata:
  name: gitlabsource-demo
  namespace: event-demo
spec:
  eventTypes:      # 指定要监视的事件类型
    - push_events
    - issues_events
    - merge_requests_events
    - tag_push_events
  projectUrl: http://codo.wgs.com/root/myproject    # 即要监视的目标代码仓库的URL
  sslverify: false      # 是否进行ssl认证
  accessToken:          # GitLab上仓库所属的用户的personal access token
    secretKeyRef:
      name: gitlabsecret
      key: accessToken
  secretToken:         # 由GitLab经Webhook调用GitLabSource时使用的Secret
    secretKeyRef:
      name: gitlabsecret
      key: secretToken
  sink:               # 事件的输出目标
    ref:
      apiVersion: eventing.knative.dev/v1
      kind: Broker
      name: default

生成  GitLabSource 资源

# kubectl apply -f GitLabSource-to-broker.yaml
gitlabsource.sources.knative.dev/gitlabsource-demo created

查看  GitLabSource 资源

# kubectl get gitlabsources -n event-demo
NAME                  READY   REASON   SINK                                                                      AGE
gitlabsource-broker   True             http://broker-ingress.knative-eventing.svc.wgs.local/event-demo/default   5m10s

查看 rt 信息

# kubectl get rt -n event-demo
NAME                        URL                                                         READY   REASON
gitlabsource-broker-8jpbj   http://gitlabsource-broker-8jpbj.event-demo.svc.wgs.local   True

查看 svc

# kubectl get svc -n event-demo
NAME                                      TYPE           CLUSTER-IP     EXTERNAL-IP                                        PORT(S)                                              AGE
default-kne-trigger-kn-channel            ExternalName   <none>         imc-dispatcher.knative-eventing.svc.wgs.local      80/TCP                                               12m
gitlabsource-broker-8jpbj                 ExternalName   <none>         knative-local-gateway.istio-system.svc.wgs.local   80/TCP                                               107s
gitlabsource-broker-8jpbj-00001           ClusterIP      10.100.63.92   <none>                                             80/TCP,443/TCP                                       6m44s
gitlabsource-broker-8jpbj-00001-private   ClusterIP      10.100.54.22   <none>                                             80/TCP,443/TCP,9090/TCP,9091/TCP,8022/TCP,8012/TCP   6m44s

验证 gitlab webhook

gitlab source 映射外网域名

自动创建 ClusterDomainClaims

kubectl patch configmap config-network -n knative-serving -p '{"data":{"autocreate-cluster-domain-claims":"true"}}'
configmap/config-network patched

domainmapping.yaml

# 自动创建cdc
apiVersion: serving.knative.dev/v1beta1
kind: DomainMapping
metadata:
  name: gitlabsource.wgs.com
  namespace: event-demo
spec:
  ref:
    name: gitlabsource-broker-8jpbj
    kind: route
    apiVersion: serving.knative.dev/v1
    namespace: event-demo

创建 dm

# kubectl apply -f domainmapping.yaml
domainmapping.serving.knative.dev/gitlabsource.wgs.com created

查看 dm

# kubectl get dm -n event-demo
NAME                   URL                           READY   REASON
gitlabsource.wgs.com   http://gitlabsource.wgs.com   True

验证 trigger 规则

修改 gitlab webhook

测试 push 事件

生成 push 事件

查看 event-display-push 日志

# kubectl logs event-display-push-00001-deployment-69fdbb4c86-lwjnj -c user-container -n event-demo-push
☁️  cloudevents.Event
Context Attributes,
  specversion: 1.0
  type: dev.knative.sources.gitlab.push
  source: http://192.168.174.108:8080/root/myproject
  id: aff1c3b2-a921-4e49-ae4d-09407dde9dca
  time: 2023-11-16T06:50:06.91782717Z
  datacontenttype: application/json
Extensions,
  comgitlabevent: Push Hook
  knativearrivaltime: 2023-11-16T06:50:06.919791709Z
Data,
  {
    "object_kind": "push",
    "before": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "after": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "ref": "refs/heads/main",
    "checkout_sha": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "user_id": 1,
    "user_name": "Administrator",
    "user_username": "root",
    "user_email": "",
    "user_avatar": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon",
    "project_id": 1,
    "Project": {
      "id": 1,
      "name": "Myproject",
      "description": "",
      "web_url": "http://codo.wgs.com/root/myproject",
      "avatar_url": "",
      "git_ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "git_http_url": "http://codo.wgs.com:8080/root/myproject.git",
      "namespace": "Administrator",
      "visibility_level": 20,
      "path_with_namespace": "root/myproject",
      "default_branch": "main",
      "homepage": "http://codo.wgs.com/root/myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "http_url": "http://codo.wgs.com:8080/root/myproject.git"
    },
    "repository": {
      "name": "Myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "description": "",
      "homepage": "http://codo.wgs.com/root/myproject"
    },
    "commits": [
      {
        "id": "14081b70599203b5771e4e30d7a8df7faf4064af",
        "message": "Initial commit",
        "timestamp": "2023-11-13T11:04:35Z",
        "url": "http://codo.wgs.com/root/myproject/-/commit/14081b70599203b5771e4e30d7a8df7faf4064af",
        "author": {
          "name": "Administrator",
          "email": "[email protected]"
        },
        "added": [
          "README.md"
        ],
        "modified": [],
        "removed": []
      }
    ],
    "total_commits_count": 1
  }

查看 event-display-tag-push 日志

# kubectl logs event-display-tag-push-00001-deployment-6df4f7f986-pkn8c -c user-container -n event-demo-tag-push
无返回信息

测试 tag_push 事件

 

查看 event-display-push 日志

# kubectl logs event-display-push-00001-deployment-69fdbb4c86-lwjnj -c user-container -n event-demo-push
☁️  cloudevents.Event
Context Attributes,
  specversion: 1.0
  type: dev.knative.sources.gitlab.push
  source: http://192.168.174.108:8080/root/myproject
  id: aff1c3b2-a921-4e49-ae4d-09407dde9dca
  time: 2023-11-16T06:50:06.91782717Z
  datacontenttype: application/json
Extensions,
  comgitlabevent: Push Hook
  knativearrivaltime: 2023-11-16T06:50:06.919791709Z
Data,
  {
    "object_kind": "push",
    "before": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "after": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "ref": "refs/heads/main",
    "checkout_sha": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "user_id": 1,
    "user_name": "Administrator",
    "user_username": "root",
    "user_email": "",
    "user_avatar": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon",
    "project_id": 1,
    "Project": {
      "id": 1,
      "name": "Myproject",
      "description": "",
      "web_url": "http://codo.wgs.com/root/myproject",
      "avatar_url": "",
      "git_ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "git_http_url": "http://codo.wgs.com:8080/root/myproject.git",
      "namespace": "Administrator",
      "visibility_level": 20,
      "path_with_namespace": "root/myproject",
      "default_branch": "main",
      "homepage": "http://codo.wgs.com/root/myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "http_url": "http://codo.wgs.com:8080/root/myproject.git"
    },
    "repository": {
      "name": "Myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "description": "",
      "homepage": "http://codo.wgs.com/root/myproject"
    },
    "commits": [
      {
        "id": "14081b70599203b5771e4e30d7a8df7faf4064af",
        "message": "Initial commit",
        "timestamp": "2023-11-13T11:04:35Z",
        "url": "http://codo.wgs.com/root/myproject/-/commit/14081b70599203b5771e4e30d7a8df7faf4064af",
        "author": {
          "name": "Administrator",
          "email": "[email protected]"
        },
        "added": [
          "README.md"
        ],
        "modified": [],
        "removed": []
      }
    ],
    "total_commits_count": 1
  }

查看 event-display-tag-push 日志

# kubectl logs event-display-tag-push-00001-deployment-6df4f7f986-pkn8c -c user-container -n event-demo-tag-push
☁️  cloudevents.Event
Context Attributes,
  specversion: 1.0
  type: dev.knative.sources.gitlab.tag_push
  source: http://192.168.174.108:8080/root/myproject
  id: 7106a136-2afd-4d90-9bd6-55097d3f4744
  time: 2023-11-16T06:58:06.306429817Z
  datacontenttype: application/json
Extensions,
  comgitlabevent: Tag Push Hook
  knativearrivaltime: 2023-11-16T06:58:06.303249782Z
Data,
  {
    "object_kind": "push",
    "before": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "after": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "ref": "refs/heads/main",
    "checkout_sha": "14081b70599203b5771e4e30d7a8df7faf4064af",
    "user_id": 1,
    "user_name": "Administrator",
    "user_username": "root",
    "user_avatar": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon",
    "project_id": 1,
    "Project": {
      "id": 1,
      "name": "Myproject",
      "description": "",
      "web_url": "http://codo.wgs.com/root/myproject",
      "avatar_url": "",
      "git_ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "git_http_url": "http://codo.wgs.com:8080/root/myproject.git",
      "namespace": "Administrator",
      "visibility_level": 20,
      "path_with_namespace": "root/myproject",
      "default_branch": "main",
      "homepage": "http://codo.wgs.com/root/myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "ssh_url": "ssh://[email protected]:35022/root/myproject.git",
      "http_url": "http://codo.wgs.com:8080/root/myproject.git"
    },
    "repository": {
      "name": "Myproject",
      "url": "ssh://[email protected]:35022/root/myproject.git",
      "description": "",
      "homepage": "http://codo.wgs.com/root/myproject"
    },
    "commits": [
      {
        "id": "14081b70599203b5771e4e30d7a8df7faf4064af",
        "message": "Initial commit",
        "timestamp": "2023-11-13T11:04:35Z",
        "url": "http://codo.wgs.com/root/myproject/-/commit/14081b70599203b5771e4e30d7a8df7faf4064af",
        "author": {
          "name": "Administrator",
          "email": "[email protected]"
        },
        "added": [
          "README.md"
        ],
        "modified": [],
        "removed": []
      }
    ],
    "total_commits_count": 1
  }

标签：Triggers,root,myproject,Brokers,wgs,push,com,event,Knative
From： https://www.cnblogs.com/wangguishe/p/17835566.html

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