Add proper UTF-8 locale (thus enabling UTF-8 defaults) and update a few minor idioms that take the image from ~244.1 MB down to ~213.6 MB

Author: tianon

8.4/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 8.4
 ENV PG_VERSION 8.4.22-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

9.0/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 9.0
 ENV PG_VERSION 9.0.18-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

9.1/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 9.1
 ENV PG_VERSION 9.1.14-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

9.2/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 9.2
 ENV PG_VERSION 9.2.9-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

9.3/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 9.3
 ENV PG_VERSION 9.3.5-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

9.4/Dockerfile

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR 9.4
 ENV PG_VERSION 9.4~beta2-1.pgdg70+1
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql
 

Dockerfile.template

@@ -4,24 +4,31 @@ FROM debian:wheezy
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 RUN groupadd -r postgres && useradd -r -g postgres postgres
 
-RUN apt-get update && apt-get install -y curl
+# grab gosu for easy step-down from root
+RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/* \
+	&& curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
+	&& chmod +x /usr/local/bin/gosu \
+	&& apt-get purge -y --auto-remove curl
 
-RUN curl -o /usr/local/bin/gosu -SL 'https://github.com/tianon/gosu/releases/download/1.1/gosu' \
-	&& chmod +x /usr/local/bin/gosu
+# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
+	&& localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+ENV LANG en_US.utf8
+
+RUN apt-key adv --keyserver pgp.mit.edu --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
 
 ENV PG_MAJOR %%PG_MAJOR%%
 ENV PG_VERSION %%PG_VERSION%%
 
-RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list \
-	&& curl -sSL https://www.postgresql.org/media/keys/ACCC4CF8.asc \
-		| apt-key add - ED6D65271AACF0FF15D123036FB2A1C265FFB764
+RUN echo 'deb http://apt.postgresql.org/pub/repos/apt/ wheezy-pgdg main' $PG_MAJOR > /etc/apt/sources.list.d/pgdg.list
 
 RUN apt-get update \
 	&& apt-get install -y postgresql-common \
 	&& sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf \
 	&& apt-get install -y \
 		postgresql-$PG_MAJOR=$PG_VERSION \
-		postgresql-contrib-$PG_MAJOR=$PG_VERSION
+		postgresql-contrib-$PG_MAJOR=$PG_VERSION \
+	&& rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql