switch to ubuntu:bionic-20180526

Author: Sameer Naik

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:xenial-20180525
+FROM ubuntu:bionic-20180526
 LABEL maintainer="[email protected]"
 
 ENV PG_APP_HOME="/etc/docker-postgresql" \
@@ -13,9 +13,9 @@ ENV PG_BINDIR=/usr/lib/postgresql/${PG_VERSION}/bin \
     PG_DATADIR=${PG_HOME}/${PG_VERSION}/main
 
 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 \
+ && DEBIAN_FRONTEND=noninteractive apt-get install -y wget gnupg \
+ && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
+ && echo 'deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main' > /etc/apt/sources.list.d/pgdg.list \
  && apt-get update \
  && DEBIAN_FRONTEND=noninteractive apt-get install -y acl sudo \
       postgresql-${PG_VERSION} postgresql-client-${PG_VERSION} postgresql-contrib-${PG_VERSION} \