## Synopsis

Containerized confluent image with docker

## Solution

To create a containerized confluent image with docker we need to edit the custom file "/confluent/container/Dockerfile

## Constraints:

Container must be run privileged. Container must be run with the ' --net = host' flag.

## Dockerfile customization

```
1  FROM almalinux:8
```

Modify above line with the desired OS.

> [!WARNING]
>
> Lenovo does NOT host any OS. The OS will be taken from a repository outside of Lenovo control.

The next lines can be edited with the specific package manager commands.

These will pull and install the dependencies needed to run confluent.

```
2   RUN   ["yum", "-y", "update"]

3   RUN   ["rpm", "-ivh", "https://hpc.lenovo.com/yum/latest/el8/x86_64/lenovo-hpc-yum-1-1.x86_64.rpm"]

4   RUN   ["yum", "-y", "install", "lenovo-confluent", "tftp-server", "openssh-clients", "openssl", "vim-enhanced", "iproute"]
```

At the end we have the last two commands:

```
5   ADD runconfluent.sh /bin/

6   CMD ["/bin/bash", "/bin/runconfluent.sh"]
```

These will add to bin and run the "runconfluent.sh" file that will install and run confluent. (default /confluent/container/runconfluent.sh)

## Reference

[https://github.com/lenovo/confluent/blob/master/container/Dockerfile](<https://github.com/lenovo/confluent/blob/master/container/Dockerfile>) [https://github.com/lenovo/confluent/blob/master/container/runconfluent.sh](<https://github.com/lenovo/confluent/blob/master/container/runconfluent.sh>)