Initial commit

control/upgrade/scripts/00-db-upgrade.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+set -e
+set -o pipefail
+
+CURRENT_PGVERSION="$(cat $PGDATA/PG_VERSION)"
+NEW_PGVERSION="13"
+PGWORKDIR=${PGWORKDIR:=/var/lib/postgresql/work}
+
+if [ ! "$CURRENT_PGVERSION" -lt "$NEW_PGVERSION" ]; then
+	echo "Current PG version is higher or equal to the PG version to be installed ($CURRENT_PGVERSION > $NEW_PGVERSION). Ignoring."
+	exit 0
+fi
+
+export PGBINOLD="/usr/lib/postgresql/$CURRENT_PGVERSION/bin"
+export PGBINNEW="/usr/lib/postgresql/$NEW_PGVERSION/bin"
+export PGDATAOLD="$PGDATA"
+export PGDATANEW="$PGWORKDIR/datanew"
+
+rm -rf "$PGWORKDIR" && mkdir -p "$PGWORKDIR" "$PGDATANEW"
+chown -R postgres.postgres "$PGDATA" "$PGWORKDIR"
+cd "$PGWORKDIR"
+# initialize new db
+su -m postgres -c "$PGBINNEW/initdb --pgdata=$PGDATANEW --encoding=unicode --auth=trust"
+echo "Performing a dry-run migration to PostgreSQL $NEW_PGVERSION..."
+su -m postgres -c "$PGBINNEW/pg_upgrade -c"
+echo "Performing the real migration to PostgreSQL $NEW_VERSION..."
+su -m postgres -c "$PGBINNEW/pg_upgrade"
+su -m postgres -c "rm -rf $PGDATAOLD/* && mv $PGDATANEW/* $PGDATAOLD/"
+# as per docker hub documentation
+su -m postgres -c "echo \"listen_addresses = '*'\" >> $PGDATAOLD/postgresql.conf"
+su -m postgres -c "echo \"host all all all md5\" >> $PGDATAOLD/pg_hba.conf"
+echo "DONE"