question: 1.5 is not compatible with APISIX 3.0

[Fabriceli]

Issue description

update apisix version from 2.15.1 to 3.0.0 in helm values file, in controller container got ssl is null error:

2022-12-16T17:05:30+08:00       debug   apisix/ssl.go:112       try to list ssl in APISIX       {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "cluster": "default"}
2022-12-16T17:05:30+08:00       debug   apisix/cluster.go:598   list resource in cluster        {"cluster_name": "default", "name": "ssl", "url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl"}
2022-12-16T17:05:30+08:00       debug   apisix/resource.go:161  got ssl: 
2022-12-16T17:05:30+08:00       error   apisix/ssl.go:128       failed to convert ssl item      {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "ssl_key": "/apisix/ssls/", "error": "unexpected end of JSON input"}
2022-12-16T17:05:30+08:00       error   apisix/cluster.go:232   failed to list ssl in APISIX: unexpected end of JSON input

and I run kubectl exec -it -n apisix apisix-ingress-controller-64d754567b-7z24j -- /bin/bash and do curl http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl -H 'X-API-Key:edd1c9f034335f136f87ad84b625c8f1' I can get result:

[root@apisix-ingress-controller-64d754567b-7z24j ingress-apisix]# curl http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl -H 'X-API-Key:edd1c9f034335f136f87ad84b625c8f1'
{"count":1,"action":"get","node":{"nodes":[{"modifiedIndex":6077,"key":"\/apisix\/ssls\/","createdIndex":119}],"key":"\/apisix\/ssl","dir":true}}

Environment

• your apisix-ingress-controller version (output of apisix-ingress-controller version --long):

Version: 1.5.0
Git SHA: no-git-module
Go Version: go1.19.4
Building OS/Arch: linux/amd64
Running OS/Arch: linux/amd64

• your Kubernetes cluster version (output of kubectl version):

Client Version: version.Info{Major:"1", Minor:"25", GitVersion:"v1.25.2", GitCommit:"5835544ca568b757a8ecae5c153f317e5736700e", GitTreeState:"clean", BuildDate:"2022-09-21T14:33:49Z", GoVersion:"go1.19.1", Compiler:"gc", Platform:"darwin/amd64"}
Kustomize Version: v4.5.7
Server Version: version.Info{Major:"1", Minor:"25", GitVersion:"v1.25.2", GitCommit:"5835544ca568b757a8ecae5c153f317e5736700e", GitTreeState:"clean", BuildDate:"2022-09-21T14:27:13Z", GoVersion:"go1.19.1", Compiler:"gc", Platform:"linux/amd64"}

• if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (uname -a):

Darwin fabricedeMacBook-Pro.local 22.2.0 Darwin Kernel Version 22.2.0: Fri Nov 11 02:08:47 PST 2022; root:xnu-8792.61.2~4/RELEASE_X86_64 x86_64

Minimal test code / Steps to reproduce

1. update apisix/valuesyaml file, I got these files from helm fetch apisix/apisix

  image:
    repository: apache/apisix
    pullPolicy: IfNotPresent
    # Overrides the image tag whose default is the chart appVersion.
    tag: 3.0.0-debian

2. run helm upgrade
3. run kubectl logs to show controller logs

Actual result

2022-12-16T17:05:30+08:00       debug   apisix/ssl.go:112       try to list ssl in APISIX       {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "cluster": "default"}
2022-12-16T17:05:30+08:00       debug   apisix/cluster.go:598   list resource in cluster        {"cluster_name": "default", "name": "ssl", "url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl"}
2022-12-16T17:05:30+08:00       debug   apisix/resource.go:161  got ssl: 
2022-12-16T17:05:30+08:00       error   apisix/ssl.go:128       failed to convert ssl item      {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "ssl_key": "/apisix/ssls/", "error": "unexpected end of JSON input"}
2022-12-16T17:05:30+08:00       error   apisix/cluster.go:232   failed to list ssl in APISIX: unexpected end of JSON input

Error log

2022-12-16T17:05:30+08:00       debug   apisix/ssl.go:112       try to list ssl in APISIX       {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "cluster": "default"}
2022-12-16T17:05:30+08:00       debug   apisix/cluster.go:598   list resource in cluster        {"cluster_name": "default", "name": "ssl", "url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl"}
2022-12-16T17:05:30+08:00       debug   apisix/resource.go:161  got ssl: 
2022-12-16T17:05:30+08:00       error   apisix/ssl.go:128       failed to convert ssl item      {"url": "http://apisix-admin.apisix.svc.cluster.local:9180/apisix/admin/ssl", "ssl_key": "/apisix/ssls/", "error": "unexpected end of JSON input"}
2022-12-16T17:05:30+08:00       error   apisix/cluster.go:232   failed to list ssl in APISIX: unexpected end of JSON input

Expected result

no error

[tao12345666333]

1.5 is not compatible with APISIX 3.0.

1.6 is compatible with APISIX 3.0 and added this configuration

apisix-ingress-controller/conf/config-default.yaml

Line 52 in 15d881e

apisix-admin-api-version: "v2" # the APISIX admin API version. can be "v2" or "v3"

for v1.6 release window #1536

Thanks for your report. I will close this one.

[Fabriceli]

1.5 is not compatible with APISIX 3.0.

1.6 is compatible with APISIX 3.0 and added this configuration

apisix-ingress-controller/conf/config-default.yaml

Line 52 in 15d881e

apisix-admin-api-version: "v2" # the APISIX admin API version. can be "v2" or "v3"

for v1.6 release window #1536

Thanks for your report. I will close this one.

v1.6 is available in helm Charts?