Build Dockerfile with e.g.:
$ docker build -t wamos .

Get a running instance with e.g.:
$ docker run --name wamos -d -p 54321:5432 -v $PWD:/opt/wamos wamos

Create ER diagrams with e.g.:
Auxiliary tables:
$ postgresql_autodoc -p 54321 -h $dockerhost \
      -U wamos --password=wamos -t dot -l . -s 'wamos'
$ dot -Tpdf wamos.dot > wamos_auxiliary.pdf

Waterway related tables:
$ postgresql_autodoc -p 54321 -h $dockerhost \
      -U wamos --password=wamos -t dot -l . -s 'wamos_waterway'
$ dot -Tpdf wamos.dot > wamos_waterway.pdf

Fairway/bottleneck related tables:
$ postgresql_autodoc -p 54321 -h $dockerhost \
      -U wamos --password=wamos -t dot -l . -s 'wamos_fairway'
$ dot -Tpdf wamos.dot > wamos_fairway.pdf