How to backup and restore the Learn that computer database

Connect to your OpenShift cluster running the database that needs to be backed up.

Make a directory on the pod for the backup

oc -n postgres exec $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name) -- \
  mkdir -p /pgdata/backup/

Back up the database

oc -n postgres exec $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name) -- \
  bash -c "pg_dump -U computateorg computateorglocal > /pgdata/backup/computateorglocal.sql"

Make a directory on your own computer for the database backup

mkdir -p ~/Downloads/backup/

Rsync the backup file to your computer

oc -n postgres rsync $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name):/pgdata/backup/ ~/Downloads/backup/

Connect to your OpenShift cluster running Postgres where you would like to restore the database.

Make a directory on the pod for the backup

oc -n postgres exec $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name) -- \
  mkdir -p /pgdata/restore/

Rsync the backup file to your Postgres pod

oc -n postgres rsync ~/Downloads/backup/ $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name):/pgdata/restore/

Drop the public schema and recreate a new public schema

oc -n postgres exec $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name) -- \
  bash -c "psql -U computateorg computateorglocal -c 'drop schema public cascade; create schema public; '"

Restore the database

oc -n postgres exec $(oc -n postgres get pod -l postgres-operator.crunchydata.com/role=master -o name) -- \
  bash -c "psql -U computateorg computateorglocal < /pgdata/restore/computateorglocal.sql"

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