akv2k8s-envenjector failed to get authorizer from azure key vault credential

[cramakan]

I am using aks egine cluster with 1.21.5 kubernetes version, when installed latest helm chart 2.1.0, i am getting below error with pod akv2k8s-envenjector .

main.go:306 ] "failed to get authorizer from azure key vault credential" err="adal: failed to execute refresh request. Error = 'post "https://login.microsoftonline.com/adclient-id/oauth2/token?api-version=1.0" : X509 certificate signed by unknow authority'"

its already working same configuration(mounting custom ca certs on pod path /etc/ssl/certs) with 1.1 version but latest version getting above error.