testing: Reduce runtime of all tests that use SQLite databases by storing them in ramfs

testing/tests/ikev2/ip-two-pools-db/hosts/moon/etc/strongswan.conf

@@ -7,7 +7,7 @@ charon {
 libhydra {
   plugins {
     attr-sql {
-      database = sqlite:///etc/ipsec.d/ipsec.db
+      database = sqlite:///etc/db.d/ipsec.db
     }
   }
 }

testing/tests/ikev2/ip-two-pools-db/posttest.dat

@@ -15,4 +15,3 @@ moon::ipsec pool --del intpool 2> /dev/null
 moon::ipsec pool --delattr dns --server PH_IP_VENUS --pool intpool --identity venus.strongswan.org 2> /dev/null
 moon::ipsec pool --delattr dns --server PH_IP_ALICE --pool intpool --identity [email protected] 2> /dev/null
 moon::ipsec pool --delattr dns --server PH_IP_WINNETOU --pool extpool 2> /dev/null
-moon::rm /etc/ipsec.d/ipsec.*

testing/tests/ikev2/ip-two-pools-db/pretest.dat

@@ -1,5 +1,5 @@
-moon::cat /usr/local/share/strongswan/templates/database/sql/sqlite.sql > /etc/ipsec.d/ipsec.sql
-moon::cat /etc/ipsec.d/ipsec.sql | sqlite3 /etc/ipsec.d/ipsec.db
+moon::cat /usr/local/share/strongswan/templates/database/sql/sqlite.sql > /etc/db.d/ipsec.sql
+moon::cat /etc/db.d/ipsec.sql | sqlite3 /etc/db.d/ipsec.db
 moon::ipsec pool --add extpool --start 10.3.0.1 --end 10.3.1.244 --timeout 48 2> /dev/null
 moon::ipsec pool --add intpool --start 10.4.0.1 --end 10.4.1.244 --timeout  0 2> /dev/null
 moon::ipsec pool --addattr dns --server PH_IP_VENUS --pool intpool --identity venus.strongswan.org 2> /dev/null

testing/tests/ikev2/ip-two-pools-db/test.conf

@@ -19,3 +19,7 @@ TCPDUMPHOSTS="alice venus carol dave"
 # Used for IPsec logging purposes
 #
 IPSECHOSTS="alice venus moon carol dave"
+
+# Guest instances on which databases are used
+#
+DBHOSTS="moon"