Why does Redis Object Cache keep falling off Redis Server running in docker?

Question

Plesk

I'm trying to make wordpress friends with object cache

It's all worth it on a VPS with Centos 7, Plesk. I install Extension Docker in Plesk, I add Redis Docker in it - it starts up, works according to the log.

Then I put the Redis Object Cache module on Wordpress according to the instructions ... and here it’s misunderstood, then the connection status is everything is OK and it works ... then this starts to give out constantly

Status: No conectado
Client: PhpRedis (v5.3.1)
Drop-in: Valid
Disabled: No
Filesystem: Working
Ping: 
Connection Exception: read error on connection to 127.0.0.1:6379 (RedisException)
Errors: [
    "read error on connection to 127.0.0.1:6379"
]

Why can this be so? I tried another image - Bitnami Redis - but the situation is the same...

Answer 1

As a result, I launched it not through docker, but locally and everything worked ...
UPD: apparently the hands are crooked, sometimes it all falls down and WP with the module is godlessly buggy