Zoe: The Kafka CLI for humans

Zoe is a command-line tool to interact with Kafka in an easy and intuitive way. Wanna see this in action? check out this demo...

Zoe really shines when it comes to interacting with cloud-hosted Kafka clusters (Kubernetes, AWS, etc.) due to its ability to offload consumption and execution to Kubernetes pods or lambda functions (more runners will be supported in the future).

Try zoe from your browser!

You can try zoe from your browser using our new Katacoda tutorials.

Key features

Here are some of the most interesting features of zoe :

• Consume Kafka topics from a specific point in time (ex. using --from 'PT5h' from the last 5 hours).
• Filter data based on content (ex. using --filter "id == '12345'" filters records with the selected id).
• Filter data based on record metadata and record headers (ex. using --expose-metadata --filter "__metadata__.offset == '95' && __metadata__.partition == '0'" finds records on the given partition with the given offset. The same query can be done to target the record headers).
• Supports offloading consumption of data to multiple lambda functions, Kubernetes pods, etc. for parallelism (ex. adding --runner kubernetes would offload all the requests to a configured Kubernetes cluster).
• Monitor consumer groups' offsets.
• Upload Avro schemas from a .avsc or .avdl file using different naming strategies.
• ... and more.

Install

For Linux & macOS, the simplest way is to use brew to install zoe:

brew install adevinta/homebrew-zoe/zoe

Go to the install page for instructions on other platforms.

Quickstart

# Initialize zoe configuration
zoe config init

# The generated config points to a local Kafka cluster (localhost:29092). You can edit it using the following command
zoe config edit

# You can inspect the list of clusters you have in your config
zoe -o table config clusters list

# You can now use zoe to interact with the clusters
zoe -o table topics list

Sample commands

Read the last 10 records from the input topic from the local Kafka cluster (aliases for topics and clusters are set in the configuration) :

zoe --cluster local topics consume input -n 10 

Read the last 10 records from the last 6 hours :

zoe --cluster local topics consume input -n 10 --from 'PT6h'

Filter records belonging to Kasimir :

zoe --cluster local topics consume input -n 10 \
    --from 'PT6h' \
    --filter "user.name.first == 'Kasimir'

Spin up 10 consumers in parallel :

zoe --cluster local topics consume input -n 10 \
    --from 'PT6h' \
    --filter "user.name.first == 'Kasimir' \
    --jobs 10

Offload consumption to Kubernetes pods (the target Kubernetes cluster is configured in zoe's configuration file):

zoe --runner kubernetes \
    --cluster local topics consume input -n 10 \
    --from 'PT6h' \
    --filter "user.name.first == 'Kasimir' \
    --jobs 10

Documentation

The full documentation can be found on the website.

Need help?

If you are encountering a bug or have any questions, please open a Github issue in the repository.

Maintainers

• Created by: Walid Lezzar (Github, Twitter , LinkedIn)

Contributors

The contributor's guide currently only shows how to build the project from source. Some docs about the architecture of Zoe and how to contribute to the project will be added soon.