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Downgrading to postgres 9.4 to upgrade to 10 later.
This commit is contained in:
Samuel Clay
parent
6f92b9dd3f
commit
b7edf5dbe7
3 changed files with 28 additions and 30 deletions
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@ -81,15 +81,15 @@
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# maintenance (custom daily cronjobs, replication, and similar tasks).
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#
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# Database administrative login by Unix domain socket
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local all postgres peer
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# local all postgres peer
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# TYPE DATABASE USER ADDRESS METHOD
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# "local" is for Unix domain socket connections only
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# IPv4 local connections:
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host all all 127.0.0.1/32 md5
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# host all all 127.0.0.1/32 md5
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# IPv6 local connections:
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host all all ::1/128 md5
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# host all all ::1/128 md5
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# Allow replication connections from localhost, by a user with the
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# replication privilege.
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#local replication postgres peer
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@ -38,15 +38,15 @@
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# The default values of these variables are driven from the -D command-line
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# option or PGDATA environment variable, represented here as ConfigDir.
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data_directory = '/var/lib/postgresql/10/main' # use data in another directory
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data_directory = '/var/lib/postgresql/9.4/main' # use data in another directory
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# (change requires restart)
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hba_file = '/etc/postgresql/10/main/pg_hba.conf' # host-based authentication file
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hba_file = '/etc/postgresql/9.4/main/pg_hba.conf' # host-based authentication file
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# (change requires restart)
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ident_file = '/etc/postgresql/10/main/pg_ident.conf' # ident configuration file
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ident_file = '/etc/postgresql/9.4/main/pg_ident.conf' # ident configuration file
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# (change requires restart)
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# If external_pid_file is not explicitly set, no extra PID file is written.
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external_pid_file = '/var/run/postgresql/10-main.pid' # write an extra PID file
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external_pid_file = '/var/run/postgresql/9.4-main.pid' # write an extra PID file
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# (change requires restart)
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44
fabfile.py
vendored
44
fabfile.py
vendored
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@ -1046,38 +1046,38 @@ def setup_postgres(standby=False):
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sudo('echo "deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main" | sudo tee /etc/apt/sources.list.d/pgdg.list')
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sudo('wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -')
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sudo('apt-get update')
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sudo('apt-get -y install postgresql-10 postgresql-client-10 postgresql-contrib-10 libpq-dev')
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put('config/postgresql.conf', '/etc/postgresql/10/main/postgresql.conf', use_sudo=True)
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put('config/postgres_hba.conf', '/etc/postgresql/10/main/pg_hba.conf', use_sudo=True)
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sudo('mkdir /var/lib/postgresql/10/archive')
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sudo('chown -R postgres.postgres /etc/postgresql/10/main')
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sudo('chown -R postgres.postgres /var/lib/postgresql/10/main')
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sudo('chown -R postgres.postgres /var/lib/postgresql/10/archive')
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sudo('apt-get -y install postgresql-9.4 postgresql-client-9.4 postgresql-contrib-9.4 libpq-dev')
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put('config/postgresql.conf', '/etc/postgresql/9.4/main/postgresql.conf', use_sudo=True)
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put('config/postgres_hba.conf', '/etc/postgresql/9.4/main/pg_hba.conf', use_sudo=True)
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sudo('mkdir -p /var/lib/postgresql/9.4/archive')
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sudo('chown -R postgres.postgres /etc/postgresql/9.4/main')
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sudo('chown -R postgres.postgres /var/lib/postgresql/9.4/main')
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sudo('chown -R postgres.postgres /var/lib/postgresql/9.4/archive')
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sudo('echo "%s" | sudo tee /proc/sys/kernel/shmmax' % shmmax)
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sudo('echo "\nkernel.shmmax = %s" | sudo tee -a /etc/sysctl.conf' % shmmax)
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sudo('echo "\nvm.nr_hugepages = %s\n" | sudo tee -a /etc/sysctl.conf' % hugepages)
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run('echo "ulimit -n 100000" > postgresql.defaults')
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sudo('mv postgresql.defaults /etc/default/postgresql')
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sudo('sysctl -p')
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sudo('rm /lib/systemd/system/postgresql.service') # Ubuntu 16 has wrong default
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sudo('rm -f /lib/systemd/system/postgresql.service') # Ubuntu 16 has wrong default
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sudo('systemctl daemon-reload')
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sudo('systemctl enable postgresql')
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if standby:
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put('config/postgresql_recovery.conf', '/var/lib/postgresql/10/recovery.conf', use_sudo=True)
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sudo('chown -R postgres.postgres /var/lib/postgresql/10/recovery.conf')
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put('config/postgresql_recovery.conf', '/var/lib/postgresql/9.4/recovery.conf', use_sudo=True)
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sudo('chown -R postgres.postgres /var/lib/postgresql/9.4/recovery.conf')
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sudo('/etc/init.d/postgresql stop')
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sudo('/etc/init.d/postgresql start')
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def config_postgres(standby=False):
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put('config/postgresql.conf', '/etc/postgresql/10/main/postgresql.conf', use_sudo=True)
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put('config/postgres_hba.conf', '/etc/postgresql/10/main/pg_hba.conf', use_sudo=True)
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sudo('chown postgres.postgres /etc/postgresql/10/main/postgresql.conf')
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put('config/postgresql.conf', '/etc/postgresql/9.4/main/postgresql.conf', use_sudo=True)
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put('config/postgres_hba.conf', '/etc/postgresql/9.4/main/pg_hba.conf', use_sudo=True)
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sudo('chown postgres.postgres /etc/postgresql/9.4/main/postgresql.conf')
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run('echo "ulimit -n 100000" > postgresql.defaults')
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sudo('mv postgresql.defaults /etc/default/postgresql')
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sudo('/etc/init.d/postgresql reload 10')
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sudo('/etc/init.d/postgresql reload 9.4')
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def upgrade_postgres():
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sudo('su postgres -c "/usr/lib/postgresql/10/bin/pg_upgrade -b /usr/lib/postgresql/9.4/bin -B /usr/lib/postgresql/10/bin -d /var/lib/postgresql/9.4/main -D /var/lib/postgresql/10/main"')
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@ -1088,18 +1088,16 @@ def copy_postgres_to_standby(master='db01'):
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# Make sure you can ssh from master to slave and back with the postgres user account.
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# Need to give postgres accounts keys in authroized_keys.
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# local: fab host:old copy_ssh_keys:postgres,private=True
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# new: ssh old
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# new: sudo su postgres -c "rsync old"
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# local: fab host:new copy_ssh_keys:postgres,private=True
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# new: sudo su postgres; ssh old
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# old: sudo su postgres; ssh new
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# old: sudo su postgres -c "psql -c \"SELECT pg_start_backup('label', true)\""
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sudo('systemctl stop postgresql')
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sudo('mkdir -p /var/lib/postgresql/10/archive')
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sudo('chown postgres.postgres /var/lib/postgresql/10/archive')
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sudo('mkdir -p /var/lib/postgresql/9.4/archive')
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sudo('chown postgres.postgres /var/lib/postgresql/9.4/archive')
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with settings(warn_only=True):
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sudo('su postgres -c "rsync -Pav -e \'ssh -i ~postgres/.ssh/newsblur.key\' --stats --progress postgres@%s:/var/lib/postgresql/10/main /var/lib/postgresql/10/ --exclude postmaster.pid"' % master)
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put('config/postgresql_recovery.conf', '/var/lib/postgresql/10/main/recovery.conf', use_sudo=True)
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sudo('su postgres -c "rsync -Pav -e \'ssh -i ~postgres/.ssh/newsblur.key\' --stats --progress postgres@%s:/var/lib/postgresql/9.4/main /var/lib/postgresql/9.4/ --exclude postmaster.pid"' % master)
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put('config/postgresql_recovery.conf', '/var/lib/postgresql/9.4/main/recovery.conf', use_sudo=True)
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sudo('systemctl start postgresql')
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# old: sudo su postgres -c "psql -c \"SELECT pg_stop_backup()\""
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@ -1750,8 +1748,8 @@ def setup_postgres_backups():
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# crontab for postgres backups
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crontab = """
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0 4 * * * /srv/newsblur/venv/newsblur/bin/python /srv/newsblur/utils/backups/backup_psql.py
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0 * * * * sudo find /var/lib/postgresql/10/archive -mtime +1 -exec rm {} \;
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0 * * * * sudo find /var/lib/postgresql/10/archive -type f -mmin +180 -delete"""
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0 * * * * sudo find /var/lib/postgresql/9.4/archive -mtime +1 -exec rm {} \;
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0 * * * * sudo find /var/lib/postgresql/9.4/archive -type f -mmin +180 -delete"""
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run('(crontab -l ; echo "%s") | sort - | uniq - | crontab -' % crontab)
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run('crontab -l')
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