zscaler guide issue, zscaler-cert.pem does not work with update-ca-certificates, should use .crt extension instead #21918
Description
Is this a docs issue?
- My issue is about the documentation content or website
Type of issue
Information is incorrect
Description
Hello,
I tried following the ZScaler guide to add a new CA certificate to my containers, but later curl calls were still failing.
Using explicit curl --cacert /path/to/zscaler-cert.pem ... did work though.
After some research, I found out that only files with .crt extension are automatically added by update-ca-certificates but the guide suggests to use .pem extension instead..
Surprisingly an earlier generic guide for adding ca certs in a docker image does tell users to use .crt extension, so I guess this is only an error/typo in the zscaler guide.
/cc @dvdksn (as you wrote both guides in #21284 #20822)
Location
https://docs.docker.com/guides/zscaler/
Suggestion
The guide should be updated to use zscaler-cert.crt instead of zscaler-cert.pem, so that update-ca-certificates actually automatically adds it to the trusted ca certificates.