chef/site-cookbooks/kosmos_postgresql/recipes/replica.rb

57 lines
1.5 KiB
Ruby

#
# Cookbook:: kosmos_postgresql
# Recipe:: replica
#
postgresql_version = "12"
postgresql_service = "postgresql@#{postgresql_version}-main"
postgresql_custom_server postgresql_version do
role "replica"
end
service postgresql_service do
supports restart: true, status: true, reload: true
end
postgresql_data_bag_item = data_bag_item('credentials', 'postgresql')
primary = postgresql_primary
unless primary.nil?
# TODO
postgresql_data_dir = "/var/lib/postgresql/#{postgresql_version}/main"
# FIXME get zerotier IP
execute "set up replication" do
command <<-EOF
systemctl stop #{postgresql_service}
mv #{postgresql_data_dir} #{postgresql_data_dir}.old
pg_basebackup -h pg.kosmos.local -U replication -D #{postgresql_data_dir} -R
chown -R postgres:postgres #{postgresql_data_dir}
systemctl start #{postgresql_service}
EOF
environment 'PGPASSWORD' => postgresql_data_bag_item['replication_password']
sensitive true
not_if { ::File.exist? "#{postgresql_data_dir}/standby.signal" }
end
postgresql_access "zerotier members" do
access_type "host"
access_db "all"
access_user "all"
access_addr "10.1.1.0/24"
access_method "md5"
notifies :reload, "service[#{postgresql_service}]", :immediately
end
postgresql_access "zerotier members replication" do
access_type "host"
access_db "replication"
access_user "replication"
access_addr "10.1.1.0/24"
access_method "md5"
notifies :reload, "service[#{postgresql_service}]", :immediately
end
end