Setup and test local Harvester upgrade responder

• Related issues: #1849 [Task] Improve Harvester upgrade responder

Category:

• Upgrade

Verification Steps

Follow the steps in https://github.com/harvester/harvester/issues/1849#issuecomment-1180346017

1. Clone longhorn/upgrade-responder and checkout to v0.1.4.
2. Edit response.json content in config folder

{
  "Versions": [
    {
      "Name": "v1.0.2-master-head",
      "ReleaseDate": "2022-06-15T00:00:00Z",
      "Tags": [
        "latest",
        "test",
        "dev"
      ]
    }
  ]
}

3. Install InfluxDB
4. Run longhorn/upgrade-responder with the command:

go run main.go --debug start --upgrade-response-config config/response.json --influxdb-url http://localhost:8086 --geodb geodb/GeoLite2-City.mmdb --application-name harvester

5. Check the local upgrade responder is running

curl -X POST http://localhost:8314/v1/checkupgrade \
     -d '{ "appVersion": "v1.0.2", "extraInfo": {}}'

6. Create a new folder v1.0.2-master-head for the http server
7. Download the latest master head installation files

• https://releases.rancher.com/harvester/master/harvester-master-amd64.iso
• https://releases.rancher.com/harvester/master/harvester-master-initrd-amd64
• https://releases.rancher.com/harvester/master/harvester-master-rootfs-amd64.squashfs
• https://releases.rancher.com/harvester/master/harvester-master-vmlinuz-amd64
• https://releases.rancher.com/harvester/master/harvester-master-amd64.sha256

7. Launch a python http server

python3 -m http.server

8. Create a version.yaml with the following content

apiVersion: harvesterhci.io/v1beta1
kind: Version
metadata:
  name: v1.0.2-master-head
  namespace: harvester-system
spec:
  isoChecksum: '0d5999471553e767cb0c4d7d1c82b00b884e994e5856d8feb90798ace523b7aa2145a5fc245e1d0073ce7b41c490979950f3f31f60a682c971aba63d562973e5'
  isoURL: http://192.168.122.224:8000/v1.0.2-master-head/harvester-master-amd64.iso
  releaseDate: '20220712'

9. Check the upgrade responder connection in harvester node

curl -X POST http://192.168.122.224:8314/v1/checkupgrade      -d '{ "appVersion": "v1.0.2", "extraInfo": {}}'

10. Check the iso download url connection in harvester node

curl -output http://192.168.122.224:8000/harvester-master-amd64.iso

11. Open Harvester settings, change upgrade-checker-url setting to our upgrade-responder URL.
12. Change the release download url to our http server url
    
13. ssh to harvester node, change to root, run k9s
14. Run : deployments -> / harvester -> select the harvester node
15. Remove pods in deployment harvester-system/harvester to trigger check new versions.
16. Wait for 5 - 10 minutes,
17. Check Harvester dashboard and click the upgrade button
18. Select the version and start the upgrade process

Expected Results

• Can select the prompted upgrade button by using the updated version of Harvester upgrade responder https://github.com/longhorn/upgrade-responder (v0.1.4) by using the upgrade-checker url

• Can correctly connect to the file server by using the release URL setting