Improved failure logging during federated reporting schema import

Saves full log in /var/cfengine/outputs

TODO: clean up old /var/cfengine/outputs/*-schema-attach-*.log files

Ticket: ENT-10789
Changelog: title

templates/federated_reporting/import.sh

@@ -10,6 +10,7 @@ source "$(dirname "$0")/log.sh"
 source "$(dirname "$0")/parallel.sh"
 
 # check that we have all the variables we need
+true "${WORKDIR?undefined}"
 true "${CFE_BIN_DIR?undefined}"
 true "${CFE_FR_SUPERHUB_DROP_DIR?undefined}"
 true "${CFE_FR_SUPERHUB_IMPORT_DIR?undefined}"
@@ -119,26 +120,35 @@ if [ "$CFE_FR_HANDLE_DUPLICATES" = "yes" ]; then
   fi
 fi
 
-failed=0
+one_failed=0
+any_failed=0
 log "Attaching schemas"
 for file in $dump_files; do
   if [ ! -f "${file}.failed" ]; then
     hostkey=$(basename "$file" | cut -d. -f1)
+    logfile="$WORKDIR"/outputs/"$hostkey"-schema-attach-$(date +%F-%T)-failure.log
     "$CFE_BIN_DIR"/psql -U $CFE_FR_DB_USER -d cfdb --set "ON_ERROR_STOP=1" \
                         -c "SET SCHEMA 'public'; SELECT attach_feeder_schema('$hostkey', ARRAY[$table_whitelist]);" \
-      > schema_attach.log 2>&1 || failed=1
+      > "$logfile" 2>&1 || one_failed=1
+      if [ "$one_failed" = "0" ]; then
+        rm -f "$logfile"
+      else
+        any_failed=1
+        log "Attaching schemas: FAILED for $hostkey, check $logfile for details"
+        log "last 10 lines of $logfile"
+        tail -n 10 "$logfile"
+      fi
+      one_failed=0
   else
     rm -f "${file}.failed"
   fi
 done
-if [ "$failed" = "0" ]; then
+if [ "$any_failed" = "0" ]; then
   log "Attaching schemas: DONE"
 else
   # attach_feeder_schema() makes sure the feeder's import schema is removed in
   # case of failure
   log "Attaching schemas: FAILED"
-  log "last 10 lines of schema_attach.log"
-  tail -n 10 schema_attach.log
   exit 1
 fi