Deck Authentication fails with `find any PEM data in certificate input`

[ChiragR7]

I was trying to use documentation specified in link

https://docs.konghq.com/deck/gateway/configuration/

Found multiple issues

1. As specified in documentation --tls-client-cert-key is not a valid argument. On checking the source code it should be --tls-client-key-file

2. On changing the command to

deck gateway ping --kong-addr https://kong-cp-kong-admin.infra.svc.cluster.local:8444 --ca-cert-file /secrets/kong-admin-api-tls/ca.crt --tls-client-key-file /secrets/kong-admin-api-tls/tls.key --tls-client-cert-file /secrets/kong-admin-api-tls/tls.crt

It started throwing fails with find any PEM data in certificate input on executing this command.

On further debugging it

setting --tls-client-key-file evaluates clientKeyContent := viper.GetString("tls-client-key") in source code to /secrets/kong-admin-api-tls/tls.key

As shown in code snippet

I suspect issue is related to viper bind flags. Did not spent time on debugging it further.

For now I am setting up env DECK_TLS_CLIENT_KEY_FILE and DECK_TLS_CLIENT_CERT_FILE, until viper issue is addressed.