switch to ubuntu:xenial-20180525

Dockerfile

@@ -1,7 +1,7 @@
-FROM sameersbn/ubuntu:14.04.20170123
-MAINTAINER [email protected]
+FROM ubuntu:xenial-20180525
+LABEL maintainer="[email protected]"
 
-ENV PG_APP_HOME="/etc/docker-postgresql"\
+ENV PG_APP_HOME="/etc/docker-postgresql" \
     PG_VERSION=9.6 \
     PG_USER=postgres \
     PG_HOME=/var/lib/postgresql \
@@ -12,10 +12,12 @@ ENV PG_APP_HOME="/etc/docker-postgresql"\
 ENV PG_BINDIR=/usr/lib/postgresql/${PG_VERSION}/bin \
     PG_DATADIR=${PG_HOME}/${PG_VERSION}/main
 
-RUN wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
- && echo 'deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
+RUN apt-get update \
+ && DEBIAN_FRONTEND=noninteractive apt-get install -y gnupg gnupg-curl \
+ && apt-key adv --fetch-keys https://www.postgresql.org/media/keys/ACCC4CF8.asc \
+ && echo 'deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
  && apt-get update \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y acl \
+ && DEBIAN_FRONTEND=noninteractive apt-get install -y acl sudo \
       postgresql-${PG_VERSION} postgresql-client-${PG_VERSION} postgresql-contrib-${PG_VERSION} \
  && ln -sf ${PG_DATADIR}/postgresql.conf /etc/postgresql/${PG_VERSION}/main/postgresql.conf \
  && ln -sf ${PG_DATADIR}/pg_hba.conf /etc/postgresql/${PG_VERSION}/main/pg_hba.conf \
@@ -28,6 +30,5 @@ COPY entrypoint.sh /sbin/entrypoint.sh
 RUN chmod 755 /sbin/entrypoint.sh
 
 EXPOSE 5432/tcp
-VOLUME ["${PG_HOME}", "${PG_RUNDIR}"]
 WORKDIR ${PG_HOME}
 ENTRYPOINT ["/sbin/entrypoint.sh"]