Merge pull request #375 from metabrainz/amCap1712-patch-1

Fix PG client in CB - Attempt 2

Dockerfile

@@ -15,12 +15,13 @@ RUN apt-get update \
     && rm -rf /var/lib/apt/lists/*
 
 # PostgreSQL client
-RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
+RUN curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
 ENV PG_MAJOR 12
 RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 RUN apt-get update \
-    && apt-get install -y postgresql-client-$PG_MAJOR \
+    && apt-get install -y --no-install-recommends postgresql-client-$PG_MAJOR \
     && rm -rf /var/lib/apt/lists/*
+
 # Specifying password so that client doesn't ask scripts for it...
 ENV PGPASSWORD "critiquebrainz"