mirror of
https://github.com/nextcloud/all-in-one.git
synced 2024-12-26 08:41:07 +08:00
177 lines
6.3 KiB
Bash
177 lines
6.3 KiB
Bash
#!/bin/bash
|
|
|
|
# Variables
|
|
DATADIR="/var/lib/postgresql/data"
|
|
export DUMP_DIR="/mnt/data"
|
|
DUMP_FILE="$DUMP_DIR/database-dump.sql"
|
|
export PGPASSWORD="$POSTGRES_PASSWORD"
|
|
|
|
# Don't start database as long as backup is running
|
|
while [ -f "$DUMP_DIR/backup-is-running" ]; do
|
|
echo "Waiting for backup container to finish..."
|
|
echo "If this is incorrect because the backup container is not running anymore (because it was forcefully killed), you might delete the lock file:"
|
|
echo "sudo docker exec --user root nextcloud-aio-database rm /mnt/data/backup-is-running"
|
|
sleep 10
|
|
done
|
|
|
|
# Check if dump dir is writeable
|
|
if ! [ -w "$DUMP_DIR" ]; then
|
|
echo "DUMP dir is not writeable by postgres user."
|
|
exit 1
|
|
fi
|
|
|
|
# Don't start if import failed
|
|
if [ -f "$DUMP_DIR/import.failed" ]; then
|
|
echo "The database import failed. Please restore a backup and try again."
|
|
echo "For further clues on what went wrong, look at the logs above."
|
|
exit 1
|
|
fi
|
|
|
|
# Don't start if initialization failed
|
|
if [ -f "$DUMP_DIR/initialization.failed" ]; then
|
|
echo "The database initialization failed. Most likely was a wrong timezone selected."
|
|
echo "The selected timezone is '$TZ'."
|
|
echo "Please check if it is in 'TZ database name' column of the timezone list: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List"
|
|
echo "For further clues on what went wrong, look at the logs above."
|
|
echo "You might start again from scratch by following https://github.com/nextcloud/all-in-one#how-to-properly-reset-the-instance and selecting a proper timezone."
|
|
exit 1
|
|
fi
|
|
|
|
# Delete the datadir once (needed for setting the correct credentials on old instances once)
|
|
if ! [ -f "$DUMP_DIR/export.failed" ] && ! [ -f "$DUMP_DIR/initial-cleanup-done" ]; then
|
|
set -ex
|
|
rm -rf "${DATADIR:?}/"*
|
|
touch "$DUMP_DIR/initial-cleanup-done"
|
|
set +ex
|
|
fi
|
|
|
|
# Test if some things match
|
|
# shellcheck disable=SC2235
|
|
if ( [ -f "$DATADIR/PG_VERSION" ] && [ "$PG_MAJOR" != "$(cat "$DATADIR/PG_VERSION")" ] ) \
|
|
|| ( ! [ -f "$DATADIR/PG_VERSION" ] && ( [ -f "$DUMP_FILE" ] || [ -f "$DUMP_DIR/export.failed" ] ) ); then
|
|
# The DUMP_file must be provided
|
|
if ! [ -f "$DUMP_FILE" ]; then
|
|
echo "Unable to restore the database because the database dump is missing."
|
|
exit 1
|
|
fi
|
|
|
|
# If database export was unsuccessful, skip update
|
|
if [ -f "$DUMP_DIR/export.failed" ]; then
|
|
echo "Database export failed the last time. Most likely was the export time not high enough."
|
|
echo "Please report this to https://github.com/nextcloud/all-in-one/issues. Thanks!"
|
|
exit 1
|
|
fi
|
|
|
|
# Write output to logfile.
|
|
exec > >(tee -i "$DUMP_DIR/database-import.log")
|
|
exec 2>&1
|
|
|
|
# Inform
|
|
echo "Restoring from database dump."
|
|
|
|
# Add import.failed file
|
|
touch "$DUMP_DIR/import.failed"
|
|
|
|
# Exit if any command fails
|
|
set -ex
|
|
|
|
# Remove old database files
|
|
rm -rf "${DATADIR:?}/"*
|
|
|
|
# Change database port to a random port temporarily
|
|
export PGPORT=11000
|
|
|
|
# Create new database
|
|
exec docker-entrypoint.sh postgres &
|
|
|
|
# Wait for creation
|
|
while ! psql -d "postgresql://oc_$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:11000/$POSTGRES_DB" -c "select now()"; do
|
|
echo "Waiting for the database to start."
|
|
sleep 5
|
|
done
|
|
|
|
# Check if the line we grep for later on is there
|
|
GREP_STRING='Name: oc_appconfig; Type: TABLE; Schema: public; Owner:'
|
|
if ! grep -q "$GREP_STRING" "$DUMP_FILE"; then
|
|
echo "The needed oc_appconfig line is not there which is unexpected."
|
|
echo "Please report this to https://github.com/nextcloud/all-in-one/issues. Thanks!"
|
|
exit 1
|
|
fi
|
|
|
|
# Get the Owner
|
|
DB_OWNER="$(grep "$GREP_STRING" "$DUMP_FILE" | grep -oP 'Owner:.*$' | sed 's|Owner:||;s| ||g')"
|
|
if [ "$DB_OWNER" = "$POSTGRES_USER" ]; then
|
|
echo "Unfortunately was the found database owner of the dump file the same as the POSTGRES_USER $POSTGRES_USER"
|
|
echo "It is not possible to import a database dump from this database owner."
|
|
echo "However you might rename the owner in the dumpfile to something else."
|
|
exit 1
|
|
elif [ "$DB_OWNER" != "oc_$POSTGRES_USER" ]; then
|
|
DIFFERENT_DB_OWNER=1
|
|
psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
|
|
CREATE USER "$DB_OWNER" WITH PASSWORD '$POSTGRES_PASSWORD' CREATEDB;
|
|
ALTER DATABASE "$POSTGRES_DB" OWNER TO "$DB_OWNER";
|
|
GRANT ALL PRIVILEGES ON DATABASE "$POSTGRES_DB" TO "$DB_OWNER";
|
|
GRANT ALL PRIVILEGES ON SCHEMA public TO "$DB_OWNER";
|
|
EOSQL
|
|
fi
|
|
|
|
# Restore database
|
|
echo "Restoring the database from database dump"
|
|
psql "$POSTGRES_DB" -U "$POSTGRES_USER" < "$DUMP_FILE"
|
|
|
|
# Correct permissions
|
|
if [ -n "$DIFFERENT_DB_OWNER" ]; then
|
|
psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
|
|
ALTER DATABASE "$POSTGRES_DB" OWNER TO "oc_$POSTGRES_USER";
|
|
REASSIGN OWNED BY "$DB_OWNER" TO "oc_$POSTGRES_USER";
|
|
EOSQL
|
|
fi
|
|
|
|
# Shut down the database to be able to start it again
|
|
pg_ctl stop -m fast
|
|
|
|
# Change database port back to default
|
|
export PGPORT=5432
|
|
|
|
# Don't exit if command fails anymore
|
|
set +ex
|
|
|
|
# Remove import failed file if everything went correctly
|
|
rm "$DUMP_DIR/import.failed"
|
|
fi
|
|
|
|
# Cover the last case
|
|
if ! [ -f "$DATADIR/PG_VERSION" ] && ! [ -f "$DUMP_FILE" ]; then
|
|
# Remove old database files if somehow there should be some
|
|
rm -rf "${DATADIR:?}/"*
|
|
fi
|
|
|
|
echo "Setting max connections..."
|
|
MEMORY=$(mawk '/MemTotal/ {printf "%d", $2/1024}' /proc/meminfo)
|
|
MAX_CONNECTIONS=$((MEMORY/50+3))
|
|
if [ -n "$MAX_CONNECTIONS" ]; then
|
|
sed -i "s|^max_connections =.*|max_connections = $MAX_CONNECTIONS|" "/var/lib/postgresql/data/postgresql.conf"
|
|
fi
|
|
|
|
# Catch docker stop attempts
|
|
trap 'true' SIGINT SIGTERM
|
|
|
|
# Start the database
|
|
exec docker-entrypoint.sh postgres &
|
|
wait $!
|
|
|
|
# Continue with shutdown procedure: do database dump, etc.
|
|
rm -f "$DUMP_FILE.temp"
|
|
touch "$DUMP_DIR/export.failed"
|
|
if pg_dump --username "$POSTGRES_USER" "$POSTGRES_DB" > "$DUMP_FILE.temp"; then
|
|
rm -f "$DUMP_FILE"
|
|
mv "$DUMP_FILE.temp" "$DUMP_FILE"
|
|
pg_ctl stop -m fast
|
|
rm "$DUMP_DIR/export.failed"
|
|
echo 'Database dump successful!'
|
|
exit 0
|
|
else
|
|
pg_ctl stop -m fast
|
|
echo "Database dump unsuccessful!"
|
|
exit 1
|
|
fi
|