Single-file data updates

• adding debug capabilities to registrar with optional DEBUG flag
• implementing single-file scheme for registration of single files (i.e. fusion data)
• updating helm ingress scheme to v1
• updates in backend

core/registrar/scheme.py

 import re
 from os.path import join, normpath, dirname
 import logging
-from typing import List
+from typing import List, Tuple
+from datetime import datetime
 
 from .xml import read_xml, parse_metadata_schema, Parameter
 from .json import read_json
 from .context import Context
 from .source import Source
 from .exceptions import RegistrationError
-
+from .utils import isoformat
 
 logger = logging.getLogger(__name__)
 
 
 class RegistrationScheme:
-    def get_context(self) -> List[Context]:
+    def get_context(self, source: Source, path: str) -> List[Context]:
         raise NotImplementedError
 
 
@@ -290,10 +291,54 @@ class STACCollectionScheme(RegistrationScheme):
         return {}
 
 
+class SingleFileRegistrationScheme(RegistrationScheme):
+    name = "single-file"
+
+    def __init__(self, footprint: str, product_type: str, level: str, date_format: str):
+        self.footprint = footprint
+        self.product_type = product_type
+        self.level = level
+        self.date_format = date_format
+
+    def get_context(self, source: Source, path: str) -> List[Context]:
+
+        begin_time, end_time = self._get_datetimes(path)
+        identifier = self._get_identifier(path, begin_time, end_time)
+
+        return [
+            Context(
+                identifier=identifier,
+                path=path,
+                scheme=self.name,
+                product_type=self.product_type,
+                product_level=self.level,
+                raster_files={self.name: path},
+                mask_files={},
+                metadata_files=[],
+                metadata={
+                    "begin_time": isoformat(begin_time),
+                    "end_time": isoformat(end_time),
+                    "footprint": self.footprint,
+                }
+            )
+        ]
+
+    def _get_identifier(self, path: str, begin_time: datetime, end_time: datetime) -> str:
+        return f"{self.product_type}_{isoformat(begin_time)}_{isoformat(end_time)}"
+
+    def _get_datetimes(self, path: str) -> Tuple[datetime, datetime]:
+        dt = path.split("/")[-1].split(".")[0]
+        begin = datetime.strptime(dt, self.date_format)
+        end = begin.replace(hour=23, minute=59, second=59)
+
+        return begin, end
+
+
 REGISTRATION_SCHEMES = {
     'gsc': GSCRegistrationScheme,
     'sentinel-2': Sentinel2RegistrationScheme,
     'stac-item': STACCollectionScheme,
+    'single-file': SingleFileRegistrationScheme,
 }