Adding Permissions to a vitess cluster via vttablet documentation doesn't work.

[prime-minister-of-fun]

Overview of the Issue

Attempting to add user permissions using vttablet and once again, the only documentation doesn't work. https://vitess.io/docs/user-guides/configuration-advanced/authorization/
/vt/bin/vttablet -table-acl-config=/tmp/perms.yml -enforce-tableacl-config -queryserver-config-strict-table-acl -tablet-path awsRegion-2872268816
tablet-path is required. No documentation as to how one finds the tablet path.
vttablet.go:152] mycnf read failed: open /vt/vtdataroot/vt_2872268816/my.cnf: no such file or directory
my.cnf exists, attempted to use the format in vthook_make_mycnf.sh But, that doesn't work either.

Reproduction Steps

1. Connect to vttablet node in kubernetes cluster
2. Execute vttablet to add permissions to cluster based on example documentation. /vt/bin/vttablet -table-acl-config=/tmp/perms.yml -enforce-tableacl-config -queryserver-config-strict-table-acl -tablet-path awsRegion-2872268816

Expected results. New users can log into vitess server.
Actual results. Error #1 -tablet-path is required. The option is poorly documented. No idea the string's format.
Actual results. Error #2 vttablet.go:152] mycnf read failed: open /vt/vtdataroot/vt_2872268816/my.cnf: no such file or directory

my.cnf exists. It's the default [mysqld] config only

Binary version

vttablet -version
Version: 10.0.0-RC1 (Git revision 29a494f7b branch 'heads/v10.0.0-rc1') built on Tue Apr  6 23:23:06 UTC 2021 by vitess@89bd9cb3a169 using go1.15.6 linux/amd64

Operating system and Environment details

OS, Architecture, and any other information you can provide
about the environment.

• Operating system (output of cat /etc/os-release):
  PRETTY_NAME="Debian GNU/Linux 10 (buster)"
  NAME="Debian GNU/Linux"
  VERSION_ID="10"
  VERSION="10 (buster)"
  VERSION_CODENAME=buster
• Kernel version (output of uname -sr): Linux 4.14.225-169.362.amzn2.x86_64
• Architecture (output of uname -m): x86_64

Log Fragments

F0504 18:32:06.133567 85 vttablet.go:152] mycnf read failed: open /vt/vtdataroot/vt_1624642437/my.cnf: no such file or directory

[askdba]

Hi, I was able to get this working by specifying following arguments to vtgate startup script.

-mysql_auth_server_impl static \
-mysql_auth_server_static_file=users.json \
-mysql_auth_static_reload_interval 1m \

Can you try again and report back?

[askdba]

@prime-minister-of-fun bumping on this issue.