TypeError: quote_from_bytes() expected bytes

quay                 | builder stdout | 2022-04-25 11:49:57,138 [79] [DEBUG] [urllib3.connectionpool] Starting new HTTPS connection (1): build01.domain.tld:6443
quay                 | builder stdout | 2022-04-25 11:49:57,202 [79] [DEBUG] [urllib3.connectionpool] https://build01.domain.tld:6443 "GET /apis/batch/v1/namespaces/builder/jobs?labelSelector=build%2Ctime%2Cmanager%2Cquay-sha HTTP/1.1" 200 91
quay                 | builder stdout | 2022-04-25 11:49:57,202 [79] [DEBUG] [buildman.manager.executor] Kubernetes response: 200: {"kind":"JobList","apiVersion":"batch/v1","metadata":{"resourceVersion":"976"},"items":[]}
quay                 | builder stdout | 2022-04-25 11:49:57,225 [79] [DEBUG] [data.database] Disconnecting from database.
quay                 | builder stdout | 2022-04-25 11:49:57,225 [79] [DEBUG] [buildman.manager.ephemeral] Starting builder for job quay/production/building/343a7305-3b72-4164-8ffd-ef34cab6391b with selected executor: k3s
quay                 | builder stdout | 2022-04-25 11:49:57,226 [79] [ERROR] [buildman.manager.ephemeral] Exception when starting builder for job: quay/production/building/343a7305-3b72-4164-8ffd-ef34cab6391b - Falling back to next configured executor
quay                 | builder stdout | Traceback (most recent call last):
quay                 | builder stdout |   File "/quay-registry/buildman/manager/ephemeral.py", line 650, in schedule
quay                 | builder stdout |     execution_id = executor.start_builder(registration_token, build_job.build_uuid)
quay                 | builder stdout |   File "/quay-registry/buildman/manager/executor.py", line 56, in wrapper
quay                 | builder stdout |     rv = func(*args, **kwargs)
quay                 | builder stdout |   File "/quay-registry/buildman/manager/executor.py", line 638, in start_builder
quay                 | builder stdout |     user_data = self.generate_cloud_config(token, build_uuid, self.manager_hostname)
quay                 | builder stdout |   File "/quay-registry/buildman/manager/executor.py", line 216, in generate_cloud_config
quay                 | builder stdout |     noproxy=self.executor_config.get("NO_PROXY", None),
quay                 | builder stdout |   File "/app/lib/python3.6/site-packages/jinja2/environment.py", line 1090, in render
quay                 | builder stdout |     self.environment.handle_exception()
quay                 | builder stdout |   File "/app/lib/python3.6/site-packages/jinja2/environment.py", line 832, in handle_exception
quay                 | builder stdout |     reraise(*rewrite_traceback_stack(source=source))
quay                 | builder stdout |   File "/app/lib/python3.6/site-packages/jinja2/_compat.py", line 28, in reraise
quay                 | builder stdout |     raise value.with_traceback(tb)
quay                 | builder stdout |   File "/quay-registry/buildman/templates/cloudconfig.json", line 82, in top-level template code
quay                 | builder stdout |     "source": {{ ca_cert | dataurl | jsonify }}
quay                 | builder stdout |   File "/quay-registry/buildman/container_cloud_config.py", line 115, in data_url
quay                 | builder stdout |     data = "," + urlquote(content)
quay                 | builder stdout |   File "/usr/lib64/python3.6/urllib/parse.py", line 897, in quote
quay                 | builder stdout |     return quote_from_bytes(string, safe)
quay                 | builder stdout |   File "/usr/lib64/python3.6/urllib/parse.py", line 922, in quote_from_bytes
quay                 | builder stdout |     raise TypeError("quote_from_bytes() expected bytes")
quay                 | builder stdout | TypeError: quote_from_bytes() expected bytes
quay                 | builder stdout | 2022-04-25 11:49:57,227 [79] [ERROR] [buildman.manager.ephemeral] Could not start ephemeral worker for build 343a7305-3b72-4164-8ffd-ef34cab6391b