Add initial kosmos-postgresql cookbook

This is to install PostgreSQL all in one place instead of for each
service that needs it (Mastodon, ejabberd, ...)

site-cookbooks/kosmos-postgresql/.gitignore

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+.vagrant
+*~
+*#
+.#*
+\#*#
+.*.sw[a-z]
+*.un~
+
+# Bundler
+Gemfile.lock
+gems.locked
+bin/*
+.bundle/*
+
+# test kitchen
+.kitchen/
+.kitchen.local.yml
+
+# Chef
+Berksfile.lock
+.zero-knife.rb
+Policyfile.lock.json

site-cookbooks/kosmos-postgresql/Berksfile

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+# frozen_string_literal: true
+source 'https://supermarket.chef.io'
+
+metadata

site-cookbooks/kosmos-postgresql/CHANGELOG.md

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+# kosmos-postgresql CHANGELOG
+
+This file is used to list changes made in each version of the kosmos-postgresql cookbook.
+
+# 0.1.0
+
+Initial release.
+
+- change 0
+- change 1
+

site-cookbooks/kosmos-postgresql/LICENSE

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+Copyright 2019 Kosmos
+
+All rights reserved, do not redistribute.

site-cookbooks/kosmos-postgresql/README.md

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+# kosmos-postgresql
+
+TODO: Enter the cookbook description here.
+

site-cookbooks/kosmos-postgresql/chefignore

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+# Put files/directories that should be ignored in this file when uploading
+# to a chef-server or supermarket.
+# Lines that start with '# ' are comments.
+
+# OS generated files #
+######################
+.DS_Store
+Icon?
+nohup.out
+ehthumbs.db
+Thumbs.db
+
+# SASS #
+########
+.sass-cache
+
+# EDITORS #
+###########
+\#*
+.#*
+*~
+*.sw[a-z]
+*.bak
+REVISION
+TAGS*
+tmtags
+*_flymake.*
+*_flymake
+*.tmproj
+.project
+.settings
+mkmf.log
+
+## COMPILED ##
+##############
+a.out
+*.o
+*.pyc
+*.so
+*.com
+*.class
+*.dll
+*.exe
+*/rdoc/
+
+# Testing #
+###########
+.watchr
+.rspec
+spec/*
+spec/fixtures/*
+test/*
+features/*
+examples/*
+Guardfile
+Procfile
+.kitchen*
+kitchen.yml*
+.rubocop.yml
+spec/*
+Rakefile
+.travis.yml
+.foodcritic
+.codeclimate.yml
+
+# SCM #
+#######
+.git
+*/.git
+.gitignore
+.gitmodules
+.gitconfig
+.gitattributes
+.svn
+*/.bzr/*
+*/.hg/*
+*/.svn/*
+
+# Berkshelf #
+#############
+Berksfile
+Berksfile.lock
+cookbooks/*
+tmp
+
+# Bundler #
+###########
+vendor/*
+
+# Policyfile #
+##############
+Policyfile.rb
+Policyfile.lock.json
+
+# Cookbooks #
+#############
+CONTRIBUTING*
+CHANGELOG*
+TESTING*
+
+# Vagrant #
+###########
+.vagrant
+Vagrantfile

site-cookbooks/kosmos-postgresql/metadata.rb

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+name 'kosmos-postgresql'
+maintainer 'Kosmos'
+maintainer_email 'ops@5apps.com'
+license 'All Rights Reserved'
+description 'Installs/Configures kosmos-postgresql'
+long_description 'Installs/Configures kosmos-postgresql'
+version '0.1.0'
+chef_version '>= 12.14' if respond_to?(:chef_version)
+
+# The `issues_url` points to the location where issues for this cookbook are
+# tracked.  A `View Issues` link will be displayed on this cookbook's page when
+# uploaded to a Supermarket.
+#
+# issues_url 'https://github.com/<insert_org_here>/kosmos-postgresql/issues'
+
+# The `source_url` points to the development repository for this cookbook.  A
+# `View Source` link will be displayed on this cookbook's page when uploaded to
+# a Supermarket.
+#
+# source_url 'https://github.com/<insert_org_here>/kosmos-postgresql'
+
+depends "postgresql", "= 6.1.1"

site-cookbooks/kosmos-postgresql/recipes/default.rb

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+#
+# Cookbook:: kosmos-postgresql
+# Recipe:: default
+#
+# Copyright:: 2019, Kosmos, All Rights Reserved.
+
+node.override['postgresql']['enable_pgdg_apt'] = false
+# See https://github.com/sous-chefs/postgresql/issues/480
+node.override['postgresql']['pg_gem']['version'] = '0.21.0'
+include_recipe "postgresql::server"
+include_recipe "postgresql::ruby"
+unless node.chef_environment == "development"
+  node.override['postgresql']['config_pgtune']['db_type'] = "web"
+  include_recipe "postgresql::config_pgtune"
+end
+