Unable to mount volume for persistent installation

[bronandrews]

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here
• I've tried running main-labeled docker image and the issue still persists there
• I'm running a supported version of the application which is listed here

Describe the bug (actual behavior)

This issue was raised on the old repo here
I cant see it recreated in the new repo - but I'm having the same issue.

Trying to run a Persistent Start as per the documentation here:

I have a local config.yml file with config in to connect to a cluster:
e.g.

kafka: clusters: - name: DevCluster bootstrapServers: kafkabroker:9096 properties: security.protocol: SASL_SSL sasl.mechanism: SCRAM-SHA-512 sasl.jaas.config: org.apache.kafka.common.security.scram.ScramLoginModule required username="MyUser" password="MyPassword";

and my docker-compose file should copy that into /etc/kafkaui/dynamic_config.yaml

services: kafka-ui: container_name: KafkaUI-Config image: ghcr.io/kafbat/kafka-ui:latest ports: - 8080:8080 environment: DYNAMIC_CONFIG_ENABLED: true volumes: - /config.yml:/etc/kafkaui/dynamic_config.yaml

But the container fails to run, with constant error:

ERROR [main] o.s.b.SpringApplication: Application run failed
org.yaml.snakeyaml.error.YAMLException: java.io.IOException: Is a directory

Expected behavior

Docker container should run and automatically configure the Dev cluster and connect using the authentication provided.

Your installation details

Using the latest Kafkabat image: ghcr.io/kafbat/kafka-ui:latest

docker-compose.yml file above.
config.yml file above.
both files in same directory.

Run from command line:
docker compose up -d

Steps to reproduce

as above

Screenshots

No response

Logs

No response

Additional context

No response

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[Haarolean]

This is not an app bug, but rather an issue with docker setup.

volumes: - /config.yml:/etc/kafkaui/dynamic_config.yaml
this means that the file is located at your FS root directory, which I doubt is true.

both files in same directory.
if that's the case, the path should be ./config.yml, rather than /config.yml.
To validate that the file exists in the container, run:

$  docker run --rm -it --entrypoint /bin/sh ghcr.io/kafbat/kafka-ui:latest
/ $ cd /tmp/
/tmp $ touch test.txt
/tmp $ test -f test.txt && echo $?
0
/tmp $ test -f test1.txt && echo $?
/tmp $

[bronandrews]

I had tried various syntax around this, with/without the dot . with/without forward slash /, & backslash \ etc
and the only way I got things working was using the full filepath.

I did a full cleardown of the system cache and tried again, and of course the above works today!
Gremlins!

Many thanks :)