Are you expecting that each configuration file will automatically get run in a separate pipeline? That does not happen unless you configure it that way using pipelines.yml. If you point path.config (or -f) at a directory that contains more than one configuration file then they are combined. So if you have two files
input { http { ... } }
filter { mutate { ... } }
output { stdout {... } }
and
input { file { ... } }
filter { csv { ... } }
output { elasticsearch {... } }
that is equivalent to
input {
http { ... }
file { ... }
}
filter {
mutate { ... }
csv { ... }
}
output {
stdout {... }
elasticsearch {... }
}