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https://github.com/lensesio/lenses-docker

❤for real-time DataOps - where the application and data fabric blends - Lenses
https://github.com/lensesio/lenses-docker

dataops docker enterprise governance kafka kubernetes openshift security

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❤for real-time DataOps - where the application and data fabric blends - Lenses

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README 

        
# Lenses® for Apache Kafka



This is the official Docker for [Lenses](https://lenses.io/kafka-lenses) that

enables you to:



* View and Query Kafka Topic Data (Avro & JSon) - Browse and query with Lenses

  SQL

* View data topologies and monitor every aspect of your Kafka cluster

* View and manage your Data Schemas

* Build and monitor ETL pipelines with open source Kafka Connectors

* Execute KStreams processors instrumented in SQL in Kubernetes or Connector

  workers

* Set up alerting and external notifications on liveniness of streaming systems

* Data governance: Auditing on all actions, data lineage & multi-tenancy

* Fine-grained security. Role based access with LDAP support

* Manage Quotas, ACLs



As a state-less application lenses fits naturally in containers and run on

**Kubernetes** or **Openshift**. It integrates and helps you instrument and view

your streaming data pipelines; as well as operate them with confidence !



The documentation is always available at https://docs.lenses.io and data

engineering talk is on [Discourse](https://ask.lenses.io) and [Slack](https://launchpass.com/landoop-community)



## The Docker Image



**Please check out the

[docker image documentation at docs.lenses.io](https://docs.lenses.io/current/installation/getting-started/docker/)

for the most recent docs and the complete set of features, settings and tweak

knobs.**



This image is aimed for our enterprise clients, though anyone with a free

developer license may use it. Visit

our [download page](https://lenses.io/downloads/) to get a free developer

license or an enterprise trial.  Only Lenses is included in this docker. Our

development environment image, which additionally includes Kafka, Connect,

Schema Registry and our open-source Stream Reactor collection of connectors can

be found as `lensesio/box`.



This image has to be run alongside a Kafka cluster.



## How to run



In the current iteration `lensesio/lenses` uses environment variables as the

primary means for configuration and alternatively configuration files.



### Setup with environment variables



For any lenses configuration option, set an environment variable by converting

the option name to uppercase and with dots replaced by underscores. As an

example `lenses.port` should be converted to `LENSES_PORT`. Optionally settings

may be mount as volumes under `/mnt/settings` or `/mnt/secrets`. As an example

you could set —file— volume `/mnt/settings/LENSES_PORT` with the port number as

the content of the file.



A brief example of a docker-compose file to setup Lenses, would be:



```yaml

version: '2'

services:

  lenses:

    image: lensesio/lenses

    environment:

      LENSES_PORT: 9991



      # # Users are managed within Lenses. Here you can change the superuser username:

      # LENSES_SECURITY_USER: admin

      # # Users are managed within Lenses. Here you can change the superuser password:

      # LENSES_SECURITY_PASSWORD: admin

    ports:

      - 9991:9991

      - 9102:9102

    network_mode: host

```



The docker image has two volumes where data are saved: `/data/log` for logs and

`/data/kafka-streams-state` for storing the state of Lenses SQL

processors. Depending on your queries and the topics volume, the latter can

become pretty large. You should monitor space and plan for adequate

capacity. Maintaining the streams state directory between Lenses restarts is

mandatory for the SQL processors to be able to continue from where they left.



The container starts with root privileges and drops to `nobody:nogroup`

(`65534:65534`) before running Lenses. If you start the image as a custom

`user:group`, it falls under your responsibility to make sure that the two

volumes are writeable by the custom `user:group`.



### Setup with configuration files



Lenses software configuration is driven by two files: `lenses.conf` and

`security.conf`. In the docker image we create them automatically from

environment variables but it is possible to set directly these files instead.



Create your configuration files according to

the

[documentation](https://docs.lenses.io/current/installation/configuration/) and

mount them under `/mnt/settings` and `/mnt/secrets` respectively —i.e

`/mnt/settings/lenses.conf` and `/mnt/secrets/security.conf`. You can set either

one or both together. Please for `lenses.conf` omit the settings

`lenses.secret.file`. If by any chance you set them,

you have to make sure lenses can find the files described in these settings.



## How to build



If you want to build the image yourself, you can just run:



```bash

docker build -t lensesiolocal/lenses .

```



If you are on an older version of Docker which does not support multi-arch

builds, you can emulate a multi-arch build via args:



```bash

docker build \

  --build-arg TARGETOS=linux --build-arg TARGETARCH=amd64 \

  -t lensesiolocal/lenses .

```



---



For more information, please visit

our [documentation](https://docs.lenses.io/). Enterprise customers may use the

support channels made available to them. Developer Edition users are encouraged

to visit our [slack community](https://launchpass.com/landoop-community). We are

always happy to help and hear from you.



With respect,



The Lenses Team.



---



Copyright 2017-2023, Lenses.io Ltd