+ # this is a server-side thing but produces a file that somehow needs to be pushed
+ # on the planetlab nodes; in the case where sfa and myplc run on different boxes
+ # (or there is no myplc at all) this should be turned off
+ # as the component manager is not operational yet we skip this for now
+ #gen-sfa-cm-config.py
+}
+
+### initialize DB (don't chkconfig postgresql on)
+function db_start () {
+
+ # only if enabled
+ [ "$SFA_DB_ENABLED" == 1 ] || return
+
+ if ! rpm -q myplc >& /dev/null; then
+
+ ######## standalone deployment - no colocated myplc
+
+ ######## sysconfig
+ # Set data directory and redirect startup output to /var/log/pgsql
+ mkdir -p $(dirname $postgresql_sysconfig)
+ # remove previous definitions
+ touch $postgresql_sysconfig
+ tmp=${postgresql_sysconfig}.new
+ ( egrep -v '^(PGDATA=|PGLOG=|PGPORT=)' $postgresql_sysconfig
+ echo "PGDATA=$PGDATA"
+ echo "PGLOG=/var/log/pgsql"
+ echo "PGPORT=$PLC_DB_PORT"
+ ) >> $tmp ; mv -f $tmp $postgresql_sysconfig
+
+ ######## /var/lib/pgsql/data
+ # Fix ownership (rpm installation may have changed it)
+ chown -R -H postgres:postgres $(dirname $PGDATA)
+
+ # PostgreSQL must be started at least once to bootstrap
+ # /var/lib/pgsql/data
+ if [ ! -f $postgresql_conf ] ; then
+ service postgresql initdb &> /dev/null || :
+ check
+ fi
+
+ ######## /var/lib/pgsql/data/postgresql.conf
+ registry_ip=""
+ foo=$(python -c "import socket; print socket.gethostbyname(\"$SFA_REGISTRY_HOST\")") && registry_ip="$foo"
+ # Enable DB server. drop Postgresql<=7.x
+ # PostgreSQL >=8.0 defines listen_addresses
+ # listen on a specific IP + localhost, more robust when run within a vserver
+ sed -i -e '/^listen_addresses/d' $postgresql_conf
+ if [ -z "$registry_ip" ] ; then
+ echo "listen_addresses = 'localhost'" >> $postgresql_conf
+ else
+ echo "listen_addresses = '${registry_ip},localhost'" >> $postgresql_conf
+ fi
+ # tweak timezone to be 'UTC'
+ sed -i -e '/^timezone=/d' $postgresql_conf
+ echo "timezone='UTC'" >> $postgresql_conf
+
+ ######## /var/lib/pgsql/data/pg_hba.conf
+ # Disable access to all DBs from all hosts
+ sed -i -e '/^\(host\|local\)/d' $pghba_conf
+
+ # Enable passwordless localhost access
+ echo "local all all trust" >>$pghba_conf
+ # grant access
+ (
+ echo "host $SFA_DB_NAME $SFA_DB_USER 127.0.0.1/32 password"
+ [ -n "$registry_ip" ] && echo "host $SFA_DB_NAME $SFA_DB_USER ${registry_ip}/32 password"
+ ) >>$pghba_conf
+
+ # Fix ownership (sed -i changes it)
+ chown postgres:postgres $postgresql_conf $pghba_conf
+
+ ######## compute user and password
+ if [ -z "$SFA_DB_PASSWORD" ] ; then
+ SFA_DB_PASSWORD=$(uuidgen)
+ plc-config --category=sfa_db --variable=password --value="$SFA_DB_PASSWORD" --save=$sfa_local_config $sfa_local_config
+ reload
+ fi
+
+ else
+
+ ######## we are colocated with a myplc - re-use the pgsql setup
+ # myplc enforces the password for its user
+ PLC_DB_USER=$(plc-config --category=plc_db --variable=user)
+ PLC_DB_PASSWORD=$(plc-config --category=plc_db --variable=password)
+ # store this as the SFA user/password
+ plc-config --category=sfa_db --variable=user --value=$PLC_DB_USER --save=$sfa_local_config $sfa_local_config
+ plc-config --category=sfa_db --variable=password --value=$PLC_DB_PASSWORD --save=$sfa_local_config $sfa_local_config
+ reload
+ fi
+
+ ######## Start up the server
+ # not too nice, but.. when co-located with myplc we'll let it start/stop postgresql
+ if ! rpm -q myplc >& /dev/null ; then
+ echo STARTING...
+ service postgresql start >& /dev/null
+ fi
+ postgresql_check
+ check
+
+ ######## make sure we have the user and db created
+ # user
+ if ! psql -U $SFA_DB_USER -c "" template1 >/dev/null 2>&1 ; then
+ psql -U postgres -c "CREATE USER $SFA_DB_USER PASSWORD '$SFA_DB_PASSWORD'" template1
+ else
+ psql -U postgres -c "ALTER USER $SFA_DB_USER WITH PASSWORD '$SFA_DB_PASSWORD'" template1
+ fi
+ check
+
+ # db
+ if ! psql -U $SFA_DB_USER -c "" $SFA_DB_NAME >/dev/null 2>&1 ; then
+ createdb -U postgres --template=template0 --encoding=UNICODE --owner=$SFA_DB_USER $SFA_DB_NAME
+ # in case we'd like to ship the db schema separately
+ #psql -U $SFA_DB_USER -f /etc/sfa/sfa.sql $SFA_DB_NAME
+ fi
+ check
+
+ MESSAGE=$"Checking for PostgreSQL server"
+ echo -n "$MESSAGE"
+ [ "$ERRORS" == 0 ] && success "$MESSAGE" || failure "$MESSAGE" ; echo
+}
+
+# shutdown DB
+function db_stop () {
+
+ # only if enabled
+ [ "$SFA_DB_ENABLED" == 1 ] || return
+
+ # not too nice, but.. when co-located with myplc we'll let it start/stop postgresql
+ if ! rpm -q myplc >& /dev/null ; then
+ service postgresql stop >& /dev/null
+ check
+ MESSAGE=$"Stopping PostgreSQL server"
+ echo -n "$MESSAGE"
+ [ "$ERRORS" == 0 ] && success "$MESSAGE" || failure "$MESSAGE" ; echo
+ fi