Add basic GitHub event source

[mszostok]

Description

Changes proposed in this pull request:

• Add basic GitHub event source

Testing

1. Checkout PR: gh pr checkout 1174

2. Build plugins: PLUGIN_TARGETS="flux,github-events" make build-plugins-single

3. Start plugin server: env PLUGIN_SERVER_HOST=http://host.k3d.internal go run test/helpers/plugin_server.go

4. Create config. Update repository name, provide github token:

   communications:
     default-group:
       socketSlack:
         enabled: true
         channels:
           default:
             name: random
             bindings:
               sources:
                 - github-events
               executors:
                 - flux
         appToken: "xapp-"
         botToken: "xoxb-"
   
   sources:
   
     github-events:
       displayName: "GitHub Events"
       botkube/github-events:
         enabled: true
         config:
           log:
             level: debug
           github:
             auth:
               accessToken: "ghp_"
   
           repositories:
             - name: mszostok/podinfo
               on:
                 pullRequests:
                   - types: [ open ]
                     paths:
                       include: [ 'kustomize/.*' ]
                     labels:
                       include: [ 'bug' ]
                     notificationTemplate:
                       extraButtons:
                         - displayName: "Flux Diff"
                           commandTpl: "flux diff ks podinfo --path ./kustomize --github-ref {{ .HTMLURL }} "
   
             - name: mszostok/podinfo
               on:
                 events:
                   - type: "WatchEvent"
                   - type: "IssuesEvent"
                     # The JSONPath expression to filter events
                     jsonPath: ".action"
                     # The value to match in the JSONPath result
                     value: "opened"
                     notificationTemplate:
                       previewTpl: |-
                         Issue Opened
   
                         #{{ .Issue.Number }} {{ .Issue.Title }}
                         State: {{ .Issue.State }}
   
                       extraButtons:
                         - displayName: Open
                           url: "{{ .Issue.HTMLURL }}"
                           style: primary
   
             - name: kubeshop/botkube
               on:
                 events:
                   - type: "WatchEvent"
   executors:
     flux:
       botkube/flux:
         enabled: true
         config:
           log:
             level: "debug"
           github:
             auth:
               accessToken: ghp_
   
         context:
           rbac:
             group:
               type: Static
               static:
                 values: [ "system:masters" ]
   
   
   plugins:
     repositories:
       botkube:
         url: http://host.k3d.internal:3010/botkube.yaml
   
   settings:
     log:
       level: "debug"
       formatter: "text"
     clusterName: "labs"
     upgradeNotifier: false
   
   analytics:
     disable: true
   
   configWatcher:
     enabled: false
   

5. Create a new Issue

6. Start watched repository

7. Create a new PR that changes specified files and has a given label

Related issue(s)

• Flux CD Executor Plugin #1016

[josefkarasek]

lgtm 👍

Just one minor comment.

[josefkarasek]

Is this a TODO? Should it be implemented?

[mszostok]

yes, it's more a suggestion for the future as during this task I didn't fit with GraphQL implementation but having it is just an optimization