fix bug 1440712 - add "upload_telemetry_schema" app

This app can be run using the socorro-cmd in an appropriate environment for
uploading the Telemetry schema to the Telemetry S3 bucket.

socorro-cmd

@@ -45,7 +45,7 @@ def showcommands_cmd(argv):
         for cmd, runner in group:
             if not isinstance(runner, basestring):
                 runner = '%s in %s' % (runner.__name__, inspect.getfile(runner))
-            print('  %-22s %s' % (cmd, runner))
+            print('  %-24s %s' % (cmd, runner))
         print('')
 
 
@@ -77,6 +77,9 @@ COMMANDS = [
                 'socorro.external.es.create_recent_indices_app.CreateRecentESIndicesApp'
             ),
             'clear_indices': 'socorro.external.es.clear_indices_app.ClearESIndicesApp',
+            'upload_telemetry_schema': (
+                'socorro.external.boto.upload_telemetry_schema.UploadTelemetrySchema'
+            ),
             'setupdb': 'socorro.external.postgresql.setupdb_app.SocorroDBApp',
         }
     ),

socorro/external/boto/upload_telemetry_schema.py

@@ -0,0 +1,75 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import sys
+
+from configman import Namespace
+from configman.converters import class_converter
+
+from socorro.app.socorro_app import App
+from socorro.schemas import CRASH_REPORT_JSON_SCHEMA_AS_STRING
+
+
+class UploadTelemetrySchema(App):
+    """Uploads schema to S3 bucket for Telemetry
+
+    We always send a copy of the crash (mainly processed crash) to a S3 bucket
+    meant for Telemetry to ingest. When they ingest, they need a copy of our
+    crash_report.json JSON Schema file.
+
+    They use that not to understand the JSON we store but the underlying
+    structure (types, nesting etc.) necessary for storing it in .parquet files
+    in S3.
+
+    To get a copy of the crash_report.json they can take it from the git
+    repository but that's fragile since it depends on github.com always being
+    available.
+
+    By uploading it to S3 not only do we bet on S3 being more read-reliable
+    that github.com's server but by being in S3 AND unavailable that means the
+    whole ingestion process has to halt/pause anyway.
+
+    """
+
+    app_name = 'upload-telemetry-schema'
+    app_version = '0.1'
+    app_description = 'Uploads schema to S3 bucket for Telemetry'
+    metadata = ''
+
+    required_config = Namespace()
+    required_config.telemetry = Namespace()
+    required_config.telemetry.add_option(
+        'resource_class',
+        default=(
+            'socorro.external.boto.connection_context.RegionalS3ConnectionContext'
+        ),
+        doc=(
+            'fully qualified dotted Python classname to handle Boto '
+            'connections'
+        ),
+        from_string_converter=class_converter,
+        reference_value_from='resource.boto'
+    )
+    required_config.telemetry.add_option(
+        'json_filename',
+        default='crash_report.json',
+        doc="Name of the file/key we're going to upload to"
+    )
+
+    def main(self):
+        connection_context = self.config.telemetry.resource_class(self.config.telemetry)
+
+        connection = connection_context._connect()
+        bucket = connection_context._get_bucket(connection, self.config.telemetry.bucket_name)
+        key = bucket.get_key(self.config.telemetry.json_filename)
+        if not key:
+            key = bucket.new_key(self.config.telemetry.json_filename)
+        key.set_contents_from_string(CRASH_REPORT_JSON_SCHEMA_AS_STRING)
+
+        self.config.logger.info('Success: Schema uploaded!')
+        return 0
+
+
+if __name__ == "__main__":
+    sys.exit(UploadTelemetrySchema.run())