Getting started
License (Elastic License 2.0)
telark is licensed under the Elastic License 2.0 — source-available, self-hosted, no hosting-as-a-service.
telark is licensed under the Elastic License 2.0 (ELv2). The
full canonical text is reproduced verbatim below. It is also
present as the LICENSE file at the root of every telark repo.
The short version:
- You can run telark inside your own infrastructure, modify it, and distribute it.
- You cannot offer telark as a hosted or managed service to third parties.
- You cannot remove the licence notices or circumvent any licence-key functionality.
If your use case sits in a grey area, read the canonical text. It is short by software-licence standards.
Why ELv2
The telark team picked ELv2 because it is the closest fit to two constraints we held simultaneously:
- Source-available. Operators in compliance-sensitive environments need to read the code, audit it, and run it in private clusters without phoning home. ELv2 permits all of that.
- No hosting-as-a-service competition. telark is a self-hosted product by design. A more permissive licence would have left the door open for someone else to host it as a managed service in competition with the project itself.
ELv2 keeps the source readable and the redistribution rights broad, while ruling out the one carve-out that would have made shipping it harder.
Canonical text
Elastic License 2.0
URL: https://www.elastic.co/licensing/elastic-license
## Acceptance
By using the software, you agree to all of the terms and conditions
below.
## Copyright License
The licensor grants you a non-exclusive, royalty-free, worldwide,
non-sublicensable, non-transferable license to use, copy, distribute,
make available, and prepare derivative works of the software, in each
case subject to the limitations and conditions below.
## Limitations
You may not provide the software to third parties as a hosted or
managed service, where the service provides users with access to any
substantial set of the features or functionality of the software.
You may not move, change, disable, or circumvent the license key
functionality in the software, and you may not remove or obscure any
functionality in the software that is protected by the license key.
You may not alter, remove, or obscure any licensing, copyright, or
other notices of the licensor in the software. Any use of the
licensor's trademarks is subject to applicable law.
## Patents
The licensor grants you a license, under any patent claims the
licensor can license, or becomes able to license, to make, have made,
use, sell, offer for sale, import and have imported the software, in
each case subject to the limitations and conditions in this license.
This license does not cover any patent claims that you cause to be
infringed by modifications or additions to the software. If you or
your company make any written claim that the software infringes or
contributes to infringement of any patent, your patent license for
the software granted under these terms ends immediately. If your
company makes such a claim, your patent license ends immediately for
work on behalf of your company.
## Notices
You must ensure that anyone who gets a copy of any part of the
software from you also gets a copy of these terms.
If you modify the software, you must include in any modified copies
of the software prominent notices stating that you have modified the
software.
## No Other Rights
These terms do not imply any licenses other than those expressly
granted in these terms.
## Termination
If you use the software in violation of these terms, such use is not
licensed, and your licenses will automatically terminate. If the
licensor provides you with a notice of your violation, and you cease
all violation of this license no later than 30 days after you receive
that notice, your licenses will be reinstated retroactively. However,
if you violate these terms after such reinstatement, any additional
violation of these terms will cause your licenses to terminate
automatically and permanently.
## No Liability
As far as the law allows, the software comes as is, without any
warranty or condition, and the licensor will not be liable to you for
any damages arising out of these terms or the use or nature of the
software, under any kind of legal claim.
## Definitions
The "licensor" is the entity offering these terms, and the "software"
is the software the licensor makes available under these terms,
including any portion of it.
"you" refers to the individual or entity agreeing to these terms.
"your company" is any legal entity, sole proprietorship, or other
kind of organization that you work for, plus all organizations that
have control over, are under the control of, or are under common
control with that organization. "control" means ownership of
substantially all the assets of an entity, or the power to direct its
management and policies by vote, contract, or otherwise. Control can
be direct or indirect.
"your licenses" are all the licenses granted to you for the software
under these terms.
"use" means anything you do with the software requiring one of your
licenses.
"trademark" means trademarks, service marks, and similar rights.