80 lines
2.4 KiB
Plaintext
80 lines
2.4 KiB
Plaintext
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#!/bin/sh
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set -e
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set -o xtrace
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export DEBIAN_FRONTEND=noninteractive
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cat > "/etc/sysctl.d/10-postgresql-performance.conf" << _EOF_
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# See 'http://www.postgresql.org/docs/9.4/static/kernel-resources.html'
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# for best practices.
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# It is recommended to disable memory overcommit,
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# but the Python interpreter may require it on smaller flavors.
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# We therefore stick with the heuristic overcommit setting.
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vm.overcommit_memory=0
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vm.nr_hugepages=64
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_EOF_
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cat > "/etc/rc.local" << _EOF_
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# See 'http://www.postgresql.org/docs/9.4/static/kernel-resources.html'
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# Postgres 9.4 added support for THP. Using huge pages reduces overhead when
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# using large contiguous chunks of memory, like PostgreSQL does.
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if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
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echo never > /sys/kernel/mm/transparent_hugepage/defrag
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fi
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if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
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echo always > /sys/kernel/mm/transparent_hugepage/enabled
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fi
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exit \$?
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_EOF_
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apt-get -y install postgresql-9.4 postgresql-contrib-9.4 postgresql-server-dev-9.4
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###########################################
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# Hack alert:
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# For Postgresql 9.4, pg_rewind is not in the main source tree and
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# no packages exist in the repos, so it must be compiled manually
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# and installed on the image until we can move to 9.5
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# See README at
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# https://github.com/vmware/pg_rewind/tree/REL9_4_STABLE
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tmpdir=/tmp/build
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mkdir -p $tmpdir
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cd $tmpdir
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git clone https://github.com/postgres/postgres.git --branch REL9_4_STABLE
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cd postgres/contrib
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git clone https://github.com/vmware/pg_rewind.git --branch REL9_4_STABLE
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dev_pkgs="libreadline-dev libkrb5-dev libssl-dev libpam-dev libxml2-dev libxslt-dev libedit-dev libselinux1-dev bison flex"
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apt-get install $dev_pkgs -y
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# Unfortunately, on ubuntu, was not able to get pg_rewind to build
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# outside of the pgsql source tree. Configure and compile postgres
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# but only call make install against the contrib/pg_rewind directory
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# so that support library is accessible to the server
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cd $tmpdir/postgres
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./configure
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make
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cd contrib/pg_rewind
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make install
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# Make the pg_rewind binary and the library used by the
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# pg_rewind stored procedures accessible
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ln -s /usr/local/pgsql/bin/pg_rewind /usr/bin/pg_rewind
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ln -s /usr/local/pgsql/lib/pg_rewind_support.so /usr/lib/postgresql/9.4/lib/pg_rewind_support.so
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cd
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rm -rf $tmpdir
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apt-get remove -y $dev_pkgs
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# End hack
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################################
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# Install the native Python client.
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apt-get -y install libpq-dev
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pip install psycopg2
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