Rearrange how default variables are loaded in collect container
Rearrange how default variables are loaded in collect container

When using the DATA_SOURCE_NAME method, it was previously necessary
to also set the POSTGRES_EXPORTER_PORT variable as well, which was
a hidden requirement. This rearrangement makes setting
POSTGRES_EXPORTER_PORT optional.

the1forte/crunchy-containers,the1forte/crunchy-containers,CrunchyData/crunchy-containers,CrunchyData/crunchy-containers,CrunchyData/crunchy-containers,the1forte/crunchy-containers