79 lines
4.1 KiB
Bash
Executable File
79 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
source /usr/local/bin/docker-entrypoint.sh
|
|
|
|
# the variable UPSTREAM indicates that a standby instance is requested, otherwise this is primary
|
|
if [[ -z $UPSTREAM ]]; then
|
|
|
|
psql -c "CREATE USER repmgr WITH SUPERUSER ENCRYPTED PASSWORD '${REPLICATOR_PASSWORD}';"
|
|
psql -c "CREATE DATABASE repmgr WITH OWNER repmgr;"
|
|
psql -c 'ALTER USER repmgr SET search_path TO repmgr, "$user", public;'
|
|
|
|
docker_temp_server_stop
|
|
|
|
|
|
# ensure required entries in configuration
|
|
# shellcheck disable=SC2129
|
|
# echo "archive_command = 'cp %p ${WAL_ARCHIVE:-/wal_archive}/%f'" >> /var/lib/postgresql/data/postgresql.conf
|
|
echo "archive_command = '/bin/true'" >> /var/lib/postgresql/data/postgresql.conf
|
|
echo "archive_mode = on" >> /var/lib/postgresql/data/postgresql.conf
|
|
echo "hot_standby = on" >> /var/lib/postgresql/data/postgresql.conf
|
|
# echo "promote_trigger_file = '/var/lib/postgresql/data/${TRIGGER_FILE:-i_am_primary}'" >> /var/lib/postgresql/data/postgresql.conf
|
|
# echo "wal_keep_size = ${WAL_KEEP_SIZE:-1GB}" >> /var/lib/postgresql/data/postgresql.conf
|
|
echo "max_wal_senders = 10" >> /var/lib/postgresql/data/postgresql.conf
|
|
echo "max_replication_slots = 10" >> /var/lib/postgresql/data/postgresql.conf
|
|
# ensure required entries in hba
|
|
echo "local all all trust" > /var/lib/postgresql/data/pg_hba.conf
|
|
echo "local replication repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "host replication repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "host replication repmgr 100.64.0.0/10 trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "local repmgr repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "host repmgr repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "host repmgr repmgr 100.64.0.0/10 trust" >> /var/lib/postgresql/data/pg_hba.conf
|
|
echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf
|
|
|
|
# create user for replication
|
|
echo "node_id = 1" >> /etc/repmgr.conf
|
|
echo "node_name = pg-0" >> /etc/repmgr.conf
|
|
echo "conninfo = 'host=pg-0 dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
|
|
echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
|
|
echo "use_replication_slots = on" >> /etc/repmgr.conf
|
|
echo "pg_bindir = '/usr/lib/postgresql/15/bin/'" >> /etc/repmgr.conf
|
|
|
|
|
|
# process selected tweaks
|
|
if [[ -n $MAX_CONNECTIONS ]]; then
|
|
echo "max_connections = ${MAX_CONNECTIONS}" >> /var/lib/postgresql/data/postgresql.conf
|
|
fi
|
|
|
|
docker_temp_server_start
|
|
|
|
/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf primary register
|
|
|
|
|
|
else
|
|
# this is a standby
|
|
|
|
docker_temp_server_stop
|
|
|
|
rm -rf /var/lib/postgresql/data/*
|
|
|
|
echo "node_id = 2" >> /etc/repmgr.conf
|
|
echo "node_name = pg-1" >> /etc/repmgr.conf
|
|
echo "conninfo = 'host=pg-1 dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
|
|
echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
|
|
echo "use_replication_slots = on" >> /etc/repmgr.conf
|
|
echo "pg_bindir = '/usr/lib/postgresql/15/bin/'" >> /etc/repmgr.conf
|
|
|
|
|
|
until /usr/lib/postgresql/15/bin/repmgr -h pg-0 -U repmgr -f /etc/repmgr.conf standby clone --dry-run
|
|
do
|
|
echo "Upstream host not ready..."
|
|
sleep 300
|
|
done
|
|
/usr/lib/postgresql/15/bin/repmgr -h pg-0 -U repmgr -f /etc/repmgr.conf standby clone
|
|
|
|
docker_temp_server_start
|
|
|
|
fi
|