Add missing environment variables to default drop-in file

etc/systemd/system/storm-webdav.service.d/storm-webdav.conf

@@ -127,3 +127,37 @@ Environment="STORM_WEBDAV_TPC_MAX_CONNECTIONS_PER_ROUTE=25"
 # Source file for the tape REST API well-known endpoint
 # Default: '/etc/storm/webdav/wlcg-tape-rest-api.json'
 # Environment="STORM_WEBDAV_TAPE_WELLKNOWN_SOURCE=/etc/storm/webdav/wlcg-tape-rest-api.json"
+
+# Buffer size for both internal and third-party copy requests.
+# This adds more efficiency than to write the whole data. Valid values are numbers >= 4096.
+# Default: 1048576
+# Environment="STORM_WEBDAV_BUFFER_FILE_BUFFER_SIZE_BYTES=1048576"
+
+# Enable checksum filter which adds checksum as an header following RFC 3230.
+# Default: true
+# Environment="STORM_WEBDAV_CHECKSUM_FILTER_ENABLED=true"
+
+# Enable Macaroon filter to process Macaroon tokens. Requires authz server enabled.
+# Default: true
+# Environment="STORM_WEBDAV_MACAROON_FILTER_ENABLED=true"
+
+# TLS protocol for non-TPC requests
+# Default: TLS
+# Environment="STORM_WEBDAV_TLS_PROTOCOL=TLS"
+
+# VOMS Trust Store directory
+# Default: /etc/grid-security/vomsdir
+# Environment="STORM_WEBDAV_VOMS_TRUST_STORE_DIR=/etc/grid-security/vomsdir"
+
+# VOMS Trust Store refresh interval
+# Default: 43200
+# Environment="STORM_WEBDAV_VOMS_TRUST_STORE_REFRESH_INTERVAL_SEC=43200"
+
+# Enable caching for VOMS certificate validation
+# Default: true
+# Environment="STORM_WEBDAV_VOMS_CACHE_ENABLE=true"
+
+# Cache entries lifetime, used if caching for VOMS certificate validation is enabled
+# Default: 300
+# Environment="STORM_WEBDAV_VOMS_CACHE_ENTRY_LIFETIME_SEC=300"
+