message: Fixes by installing postgresql-client from edge repository
diff: @@ -28,7 +28,6 @@ COPY ssmtp.conf /etc/ssmtp/ssmtp.conf
  RUN apk update \
  && apk upgrade \
  && apk add --no-cache fcgi \
  - postgresql-client \
  ssmtp \
  # for gd
  libpng-dev \
  @@ -41,6 +40,7 @@ RUN apk update \
  libxml2-dev \
  # for xsl
  libxslt-dev \
  + && apk add --no-cache postgresql-client --repository http://nl.alpinelinux.org/alpine/edge/main \
  && apk add --no-cache --virtual .phpize-deps $PHPIZE_DEPS postgresql-dev \
  && if [ ${PHP_VERSION%.*.*} == "7" ]; then \
  yes '' | pecl install -f apcu \
  