Hope support for ETCD_ROOT_PASSWORD Environment Variable

[kingsword09]

What would you like to be added?

Add support for an environment variable (e.g., ETCD_ROOT_PASSWORD) to allow users to set the root password for etcd via configuration, similar to the approach used in bitnami/etcd Docker images.

Why is this needed?

We previously used the bitnami/etcd Docker image, which provided this feature, but it is going to be deprecated and will no longer be maintained. Official support for this environment variable in etcd would make it easier for users to migrate from Bitnami to the official image. If this capability is already supported in the official etcd image, please let me know how to use it, as I could not find relevant documentation.

Reference:
bitnami/etcd Docker image environment variables

[ivanvc]

Hi, @kingsword09. Please note that all Bitnami was doing was to create a new user using etcdctl after the cluster is ready.

Please refer to: https://github.com/bitnami/containers/blob/10626c01d2b01d6dcf6ca9ee80eee4304fcfef6a/bitnami/etcd/3.6/debian-12/rootfs/opt/bitnami/scripts/libetcd.sh#L328-L331

Doing this should address your issue.

[kingsword09]

@ivanvc Thank you for your prompt response and assistance! Following your suggestion, I was able to resolve the issue by using the following commands:

etcdctl user add root --new-user-password "${ETCD_ROOT_PASSWORD}"
etcdctl user grant-role root root
etcdctl auth enable

I truly appreciate your patience and support!

[ivanvc]

You're welcome :)