Setup postgis in Amazon RDS

setup_rds_postgis.sql

-- taken from http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.PostGIS
create extension postgis;
create extension fuzzystrmatch;
create extension postgis_tiger_geocoder;
create extension postgis_topology;

alter schema tiger owner to rds_superuser;
alter schema tiger_data owner to rds_superuser;
alter schema topology owner to rds_superuser;

CREATE FUNCTION exec(text) returns text language plpgsql volatile AS $f$ BEGIN EXECUTE $1; RETURN $1; END; $f$;

SELECT exec('ALTER TABLE ' || quote_ident(s.nspname) || '.' || quote_ident(s.relname) || ' OWNER TO rds_superuser;')
  FROM (
    SELECT nspname, relname
    FROM pg_class c JOIN pg_namespace n ON (c.relnamespace = n.oid) 
    WHERE nspname in ('tiger','topology') AND
    relkind IN ('r','S','v') ORDER BY relkind = 'S')
s;

I think this is missing a couple of steps:

ALTER TABLE public.spatial_ref_sys OWNER TO rds_superuser;
GRANT SELECT, INSERT ON TABLE public.spatial_ref_sys TO public;`

You can do those if required (though you may want to consider something tighter than public), however it works fine as is for my needs, and is a direct copy of http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.PostGIS