mirror of
https://github.com/task-17-lct/backend.git
synced 2025-11-04 08:37:27 +03:00
56 lines
1.6 KiB
Bash
56 lines
1.6 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
|
|
### Restore database from a backup.
|
|
###
|
|
### Parameters:
|
|
### <1> filename of an existing backup.
|
|
###
|
|
### Usage:
|
|
### $ docker-compose -f <environment>.yml (exec |run --rm) postgres restore <1>
|
|
|
|
|
|
set -o errexit
|
|
set -o pipefail
|
|
set -o nounset
|
|
|
|
|
|
working_dir="$(dirname ${0})"
|
|
source "${working_dir}/_sourced/constants.sh"
|
|
source "${working_dir}/_sourced/messages.sh"
|
|
|
|
|
|
if [[ -z ${1+x} ]]; then
|
|
message_error "Backup filename is not specified yet it is a required parameter. Make sure you provide one and try again."
|
|
exit 1
|
|
fi
|
|
backup_filename="${BACKUP_DIR_PATH}/${1}"
|
|
if [[ ! -f "${backup_filename}" ]]; then
|
|
message_error "No backup with the specified filename found. Check out the 'backups' maintenance script output to see if there is one and try again."
|
|
exit 1
|
|
fi
|
|
|
|
message_welcome "Restoring the '${POSTGRES_DB}' database from the '${backup_filename}' backup..."
|
|
|
|
if [[ "${POSTGRES_USER}" == "postgres" ]]; then
|
|
message_error "Restoring as 'postgres' user is not supported. Assign 'POSTGRES_USER' env with another one and try again."
|
|
exit 1
|
|
fi
|
|
|
|
export PGHOST="${POSTGRES_HOST}"
|
|
export PGPORT="${POSTGRES_PORT}"
|
|
export PGUSER="${POSTGRES_USER}"
|
|
export PGPASSWORD="${POSTGRES_PASSWORD}"
|
|
export PGDATABASE="${POSTGRES_DB}"
|
|
|
|
message_info "Dropping the database..."
|
|
dropdb "${PGDATABASE}"
|
|
|
|
message_info "Creating a new database..."
|
|
createdb --owner="${POSTGRES_USER}"
|
|
|
|
message_info "Applying the backup to the new database..."
|
|
gunzip -c "${backup_filename}" | psql "${POSTGRES_DB}"
|
|
|
|
message_success "The '${POSTGRES_DB}' database has been restored from the '${backup_filename}' backup."
|