+ sql "ALTER TABLE ofcs DROP COLUMN last_error, DROP COLUMN status;"
+ sql "DELETE FROM schema_version WHERE version_int = '16';"
+}
+
+function upgrade_to_17(){
+ # echo " upgrade database from version 0.16 to version 0.17"
+ echo " Add pci to the unique indexes switch_dpid_switch_port switch_dpid_switch_mac at of_port_mappings"
+ sql "ALTER TABLE of_port_mappings DROP INDEX switch_dpid_switch_port, "\
+ "ADD UNIQUE INDEX switch_dpid_switch_port (switch_dpid, switch_port, pci);"
+ sql "ALTER TABLE of_port_mappings DROP INDEX switch_dpid_switch_mac, "\
+ "ADD UNIQUE INDEX switch_dpid_switch_mac (switch_dpid, switch_mac, pci);"
+ echo " Add nets_with_same_vlan to table ofcs"
+ sql "ALTER TABLE ofcs ADD COLUMN nets_with_same_vlan ENUM('true','false') NOT NULL DEFAULT 'false' AFTER status;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (17, '0.17', '0.5.10', 'Add pci to unique index dpid port/mac at of_port_mappings', '2017-04-05');"
+}
+
+function downgrade_from_17(){
+ # echo " downgrade database from version 0.17 to version 0.16"
+ echo " Delete pci fromthe unique indexes switch_dpid_switch_port switch_dpid_switch_mac at of_port_mappings"
+ sql "ALTER TABLE of_port_mappings DROP INDEX switch_dpid_switch_port, "\
+ "ADD UNIQUE INDEX switch_dpid_switch_port (switch_dpid, switch_port);"
+ sql "ALTER TABLE of_port_mappings DROP INDEX switch_dpid_switch_mac, "\
+ "ADD UNIQUE INDEX switch_dpid_switch_mac (switch_dpid, switch_mac);"
+ echo " Remove nets_with_same_vlan from table ofcs"
+ sql "ALTER TABLE ofcs DROP COLUMN nets_with_same_vlan;"
+ sql "DELETE FROM schema_version WHERE version_int = '17';"
+}
+
+function upgrade_to_18(){
+ echo " Add 'region' at 'nets' and change unique index vlan+region"
+ sql "ALTER TABLE nets ADD COLUMN region VARCHAR(64) NULL DEFAULT NULL AFTER admin_state_up, DROP INDEX type_vlan;"
+ echo " Fill 'region' with __OVS__/__DATA__ for OVS/openflow provider at nets"
+ sql "UPDATE nets set region='__OVS__' where provider like 'OVS%';"
+ sql "UPDATE nets set region='__DATA__' where type='data' or type='ptp';"
+ echo " Create new index region_vlan at nets"
+ sql "ALTER TABLE nets ADD UNIQUE INDEX region_vlan (region, vlan);"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (18, '0.18', '0.5.13', 'Add region to nets, change vlan unique index', '2017-05-03');"
+}
+
+function downgrade_from_18(){
+ echo " Delete 'region' at 'nets' and change back unique index vlan+type"
+ sql "ALTER TABLE nets DROP INDEX region_vlan, DROP COLUMN region;"
+ echo " Create back index type_vlan at nets"
+ sql "ALTER TABLE nets ADD UNIQUE INDEX type_vlan (type, vlan);"
+ sql "DELETE FROM schema_version WHERE version_int = '18';"
+}
+
+function upgrade_to_19(){
+ echo " Add 'keyfile' to 'hosts'"
+ sql "ALTER TABLE hosts ADD COLUMN keyfile VARCHAR(255) NULL DEFAULT NULL AFTER password;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (19, '0.19', '0.5.15', 'Add keyfile to hosts', '2017-05-23');"
+}
+
+function downgrade_from_19(){
+ echo " Delete 'keyfile' from 'hosts'"
+ sql "ALTER TABLE hosts DROP COLUMN keyfile;"
+ sql "DELETE FROM schema_version WHERE version_int = '19';"
+}
+
+function upgrade_to_20(){
+ echo " Add 'image_size' to 'instance_devices'"
+ sql "ALTER TABLE instance_devices ADD COLUMN image_size INT NULL DEFAULT NULL AFTER dev;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (20, '0.20', '0.5.17', 'Add image_size to instance_devices', '2017-06-01');"
+}
+
+function downgrade_from_20(){
+ echo " Delete 'image_size' from 'instance_devices'"
+ sql "ALTER TABLE instance_devices DROP COLUMN image_size;"
+ sql "DELETE FROM schema_version WHERE version_int = '20';"
+}
+
+function upgrade_to_21(){
+ echo " Add 'routes', 'links' and 'dns' to 'nets'"
+ sql "ALTER TABLE nets ADD COLUMN dns VARCHAR(255) NULL AFTER gateway_ip, "\
+ "ADD COLUMN links TEXT(2000) NULL AFTER dns, "\
+ "ADD COLUMN routes TEXT(2000) NULL AFTER links;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (21, '0.21', '0.5.18', 'Add routes, links and dns to inets', '2017-06-21');"
+}
+
+function downgrade_from_21(){
+ echo " Delete 'routes', 'links' and 'dns' to 'nets'"
+ sql "ALTER TABLE nets DROP COLUMN dns, DROP COLUMN links, DROP COLUMN routes;"
+ sql "DELETE FROM schema_version WHERE version_int = '21';"
+}
+
+function upgrade_to_22(){
+ echo " Changed type of ram in 'flavors' from SMALLINT to MEDIUMINT"
+ sql "ALTER TABLE flavors CHANGE COLUMN ram ram MEDIUMINT(7) UNSIGNED NULL DEFAULT NULL AFTER disk;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (22, '0.22', '0.5.21', 'Changed type of ram in flavors from SMALLINT to MEDIUMINT', '2017-11-14');"
+}
+
+function downgrade_from_22(){
+ echo " Changed type of ram in 'flavors' from MEDIUMINT to SMALLINT"
+ sql "ALTER TABLE flavors CHANGE COLUMN ram ram SMALLINT(5) UNSIGNED NULL DEFAULT NULL AFTER disk;"
+ sql "DELETE FROM schema_version WHERE version_int = '22';"
+}
+
+function upgrade_to_23(){
+ echo " Add 'hypervisor' and 'os_type' column to 'instances' table"
+ sql "ALTER TABLE instances ADD COLUMN hypervisor enum('kvm','xen-unik','xenhvm') NOT NULL DEFAULT 'kvm' AFTER flavor_id;"
+ sql "ALTER TABLE instances ADD COLUMN os_image_type VARCHAR(24) NOT NULL DEFAULT 'other' AFTER hypervisor;"
+ echo " Add 'hypervisors' column to 'hosts' table"
+ sql "ALTER TABLE hosts ADD COLUMN hypervisors VARCHAR(255) NOT NULL DEFAULT 'kvm' AFTER features;"
+ sql "INSERT INTO schema_version (version_int, version, openvim_ver, comments, date) "\
+ "VALUES (23, '0.23', '0.5.24', 'Add hypervisor, os_type to instances and add hypervisors to hosts', '2018-03-20');"
+}
+
+function downgrade_from_23(){
+ echo " Remove 'hypervisor' and 'os_type' column from 'instances' table"
+ sql "ALTER TABLE instances DROP COLUMN hypervisor;"
+ sql "ALTER TABLE instances DROP COLUMN os_image_type;"
+ echo " Remove 'hypervisors' column from 'hosts' table"
+ sql "ALTER TABLE hosts DROP COLUMN hypervisors;"
+ sql "DELETE FROM schema_version WHERE version_int = '23';"
+}
+
+# TODO ... put functions here
+
+# echo "db version = "${DATABASE_VER_NUM}
+[ $DB_VERSION -eq $DATABASE_VER_NUM ] && echo " current database version '$DATABASE_VER_NUM' is ok" && exit 0
+
+# Create a backup database content
+TEMPFILE2="$(mktemp -q --tmpdir "backupdb.XXXXXX.sql")"
+trap 'rm -f "$TEMPFILE2"' EXIT
+mysqldump $DEF_EXTRA_FILE_PARAM --add-drop-table --add-drop-database --routines --databases $DBNAME > $TEMPFILE2
+
+function rollback_db()
+{
+ cat $TEMPFILE2 | mysql $DEF_EXTRA_FILE_PARAM && echo " Aborted! Rollback database OK" ||
+ echo " Aborted! Rollback database FAIL"
+ exit 1
+}
+
+function sql() # send a sql command
+{
+ echo "$*" | $DBCMD || ! echo " ERROR with command '$*'" || rollback_db
+ return 0