Fix bug where an error would cause failure of all subsequent containers.

tools/build_and_up_all_containers.sh

@@ -20,15 +20,19 @@ function fail_one()
 
 bash partials/fsg-image/build.sh
 
+cd service_definitions
+
+SERVICE_DEFINITION_ROOT="$PWD"
+
 while IFS="" read -u 3 -r SERVICE_PATH
 do
-    pushd "${SERVICE_PATH%/*}"
+    cd "${SERVICE_DEFINITION_ROOT}"
+    cd "${SERVICE_PATH%/*}"
     pwd
     podman-compose pull || { fail_one "pull" ; continue ; }
     podman-compose build --no-cache || { fail_one "build" ; continue ; }
     podman-compose up -d || { fail_one "switch to newly built container" ; continue ; }
 
-    popd
 done 3< <( find . -iname "compose.yaml" )
 
 echo "Overall result: $RC"