I wanted to check if Redis 6.0* is out and tried an upgrade and got:
root@v-1:~# wo stack upgrade --redis
Your sites may be down for few seconds if you are upgrading Nginx, PHP-FPM, MariaDB or Redis
Do you want to continue:[y/N]y
Fixing missing GPG keys, please wait...
Whoops, something went wrong...
Check the WordOps log for more details `tail /var/log/wo/wordops.log` and please try again...
And maybe not related:
Command Error: Warning: apt-key output should not be parsed (stdout is not a terminal)
gpg: keyserver receive failed: No keyserver available
Anything to worry about? Is redis 6.0.* even available for Wordops yet?
And totally unrelated: does redis supports multible domains on a server?