from typing import Optional, Tuple
from controller import log, print_and_exit
from controller.deploy.docker import Docker
SERVICE_NAME = __name__
EXPECTED_EXT = ".sql.gz"
[docs]
def restore(
container: Optional[Tuple[str, str]], backup_file: str, force: bool
) -> None:
if not container:
print_and_exit(
"The restore procedure requires {} running, please start your stack",
SERVICE_NAME,
)
docker = Docker()
log.info("Starting restore on {}...", SERVICE_NAME)
backup_path = f"/backup/{SERVICE_NAME}/{backup_file}"
dump_file = backup_file.replace(".gz", "")
dump_path = f"/tmp/{dump_file}"
docker.exec_command(container, user="root", command=f"cp {backup_path} /tmp/")
docker.exec_command(
container, user="root", command=f"gunzip -kf /tmp/{backup_file}"
)
# Executed as root
docker.exec_command(container, user="root", command=f"chown postgres {dump_path}")
# By using pg_dumpall the resulting dump can be restored with psql:
docker.exec_command(
container,
user="postgres",
command=f"psql -U sqluser -f {dump_path} postgres",
)
log.info("Restore from data{} completed", backup_path)