ducky: add si test consuming from blocked s3

When trying to consume from blocked S3, time out error should be
returned

tests/rptest/tests/shadow_indexing_firewall_test.py

@@ -0,0 +1,77 @@
+# Copyright 2021 Redpanda Data, Inc.
+#
+# Licensed as a Redpanda Enterprise file under the Redpanda Community
+# License (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# https://github.com/redpanda-data/redpanda/blob/master/licenses/rcl.md
+
+from rptest.services.cluster import cluster
+from rptest.tests.redpanda_test import RedpandaTest
+from rptest.services.redpanda import SISettings
+
+from rptest.clients.types import TopicSpec
+from rptest.clients.rpk import RpkTool, RpkException
+from rptest.util import (
+    produce_until_segments,
+    wait_for_segments_removal,
+    firewall_blocked,
+)
+
+# Log errors expected when connectivity between redpanda and the S3
+# backend is disrupted
+CONNECTION_ERROR_LOGS = [
+    "archival - .*Failed to create archivers",
+
+    # e.g. archival - [fiber1] - service.cc:484 - Failed to upload 3 segments out of 4
+    r"archival - .*Failed to upload \d+ segments"
+]
+
+
+class ShadowIndexingFirewallTest(RedpandaTest):
+    log_segment_size = 1048576  # 1MB
+    retention_bytes = 1024  # 1 KB
+
+    s3_topic_name = "panda-topic"
+    topics = (TopicSpec(name=s3_topic_name,
+                        partition_count=1,
+                        replication_factor=3), )
+
+    def __init__(self, test_context):
+        si_settings = SISettings(cloud_storage_reconciliation_interval_ms=500,
+                                 cloud_storage_max_connections=5,
+                                 log_segment_size=self.log_segment_size)
+
+        super(ShadowIndexingFirewallTest,
+              self).__init__(test_context=test_context,
+                             si_settings=si_settings)
+
+        self._s3_port = si_settings.cloud_storage_api_endpoint_port
+        self.rpk = RpkTool(self.redpanda)
+
+    @cluster(num_nodes=3, log_allow_list=CONNECTION_ERROR_LOGS)
+    def test_consume_from_blocked_s3(self):
+        produce_until_segments(redpanda=self.redpanda,
+                               topic=self.s3_topic_name,
+                               partition_idx=0,
+                               count=5,
+                               acks=-1)
+
+        self.rpk.alter_topic_config(self.s3_topic_name,
+                                    TopicSpec.PROPERTY_RETENTION_BYTES,
+                                    self.retention_bytes)
+
+        wait_for_segments_removal(redpanda=self.redpanda,
+                                  topic=self.s3_topic_name,
+                                  partition_idx=0,
+                                  count=4)
+        """Disconnect redpanda from S3 and try to read starting with offset 0"""
+        with firewall_blocked(self.redpanda.nodes, self._s3_port):
+            try:
+                out = self.rpk.consume(topic=self.s3_topic_name)
+            except RpkException as e:
+                assert 'timed out' in e.msg
+            else:
+                raise RuntimeError(
+                    f"RPK consume should have timed out, but ran with output: {out}"
+                )