66 lines
3.7 KiB
Bash
Executable File
66 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# the variable UPSTREAM indicates that a standby instance is requested, otherwise this is primary
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if [[ -z $UPSTREAM ]]; then
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# ensure required entries in configuration
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# shellcheck disable=SC2129
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# echo "archive_command = 'cp %p ${WAL_ARCHIVE:-/wal_archive}/%f'" >> /var/lib/postgresql/data/postgresql.conf
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echo "archive_command = '/bin/true'" >> /var/lib/postgresql/data/postgresql.conf
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echo "archive_mode = on" >> /var/lib/postgresql/data/postgresql.conf
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echo "hot_standby = on" >> /var/lib/postgresql/data/postgresql.conf
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# echo "promote_trigger_file = '/var/lib/postgresql/data/${TRIGGER_FILE:-i_am_primary}'" >> /var/lib/postgresql/data/postgresql.conf
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# echo "wal_keep_size = ${WAL_KEEP_SIZE:-1GB}" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_wal_senders = 10" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_replication_slots = 10" >> /var/lib/postgresql/data/postgresql.conf
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# ensure required entries in hba
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echo "local all all trust" > /var/lib/postgresql/data/pg_hba.conf
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echo "local replication repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr 100.64.0.0/10 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "local repmgr repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr 100.64.0.0/10 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf
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# echo "local replication repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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# echo "host replication repmgr ${NETWORK:-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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# echo "local repmgr repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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# echo "host repmgr repmgr ${NETWORK:-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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# create user for replication
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psql -c "CREATE USER repmgr WITH SUPERUSER ENCRYPTED PASSWORD '${REPLICATOR_PASSWORD}';"
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psql -c "CREATE DATABASE repmgr WITH OWNER repmgr;"
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psql -c 'ALTER USER repmgr SET search_path TO repmgr, "$user", public;'
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echo "node_id = 1" >> /etc/repmgr.conf
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echo "node_name = pg-0" >> /etc/repmgr.conf
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echo "conninfo ='host=pg-0 dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
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echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
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# process selected tweaks
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if [[ -n $MAX_CONNECTIONS ]]; then
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echo "max_connections = ${MAX_CONNECTIONS}" >> /var/lib/postgresql/data/postgresql.conf
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fi
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else
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# this is a standby
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source /usr/local/bin/docker-entrypoint.sh
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docker_temp_server_stop
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rm -rf /var/lib/postgresql/data/*
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echo "node_id = 2" >> /etc/repmgr.conf
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echo "node_name = pg-1" >> /etc/repmgr.conf
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echo "conninfo ='host=pg-1 dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
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echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
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# OLD_PGPASSWORD=$PGPASSWORD
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# export PGPASSWORD=$REPLICATOR_PASSWORD
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# pg_basebackup -h "${UPSTREAM}" -U repmgr -D "${PGDATA}" -Fp -Xs -P -R
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# export PGPASSWORD=$OLD_PGPASSWORD
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fi
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