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DB_BACKUP.md

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DB backups

Create a 'backups' directory

mkdir backups

Before backup stop all services and run only db service

docker compose stop
docker compose start db

Make a backup:

docker exec metis-db mkdir /backups
docker exec -e PGPASSWORD=password metis-db pg_dump -F c -U metis -h db -f /backups/db.dump metis

Copy a backup from a container to the host

docker cp metis-db:/backups/db.dump ./backups/db.dump

To restore a DB, copy the backup to the DB container

docker cp ./backups/db.dump metis-db:/backups/db.dump

Restore the DB

docker exec -e PGPASSWORD=password metis-db pg_restore -U metis -h db -c -d metis /backups/db.dump

Restore DB from a plain-text dump

docker exec -e PGPASSWORD=password metis-db psql -U metis -h db -d metis \
  -c "DROP SCHEMA public CASCADE;" \
  -c "CREATE SCHEMA public;" \
  -c "GRANT ALL ON SCHEMA public TO metis;" \
  -c "GRANT ALL ON SCHEMA public TO public;" \
  -c "COMMENT ON SCHEMA public IS 'standard public schema';"

docker cp ./backups/db.sql metis-db:/backups/db.sql

docker exec -e PGPASSWORD=password metis-db psql -U metis -h db -d metis -f /backups/db.sql