Add Chat Bylaws

Author: snazy

CHAT_BYLAWS.md

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+# Apache Polaris - Project Chat Bylaws
+
+Apache Polaris is currently undergoing Incubation at the Apache Software Foundation.
+
+## Motivation
+
+The Polaris project uses a public and open chat service currently provided by Zulip hosted
+at https://polaris-catalog.zulipchat.com/. A few rules shall ensure that the chat conforms to the rules and best
+practices of the Apache Software Foundation and serves well as a collaboration tool for the project.
+
+Organizations and other open-source projects that contribute continuously and significantly to Polaris are welcome, but
+shall not use the Polaris chat as a vehicle for their own marketing without explicit approval of the project (P)PMC.
+
+## Code of Conduct
+
+The [Apache Software Foundation’s Code of Conduct](https://www.apache.org/foundation/policies/conduct.html) applies to
+the Polaris project public chat.
+
+## Governance
+
+* The Polaris project’s chat tool is not provided by the ASF - the Polaris project (P)PMC members govern and monitor the
+  chat service.
+* Everybody is welcome to join the Polaris project chat. Invites are not needed.
+* All users are automatically promoted to “members” (don’t stay in “guests”).
+* Polaris project (P)PMC members have “owner” privileges on the Zulip chat. Polaris project committers are granted
+  “moderator” or “administrator” privileges for moderation purposes.
+* This bylaws document shall be published on the project’s web site and linked from relevant public channels.
+* Only (P)PMC members are allowed to create new channels. The number of channels shall be limited to #general (user
+  discussions), #dev (development discussions), #announcements (release announcements), and #noise (GitHub feed).
+* Only (P)PMC members are allowed to notify a large number of users (aka @here).
+
+## 3rd Parties
+
+Definition: “3rd party” means any (other) open-source project or any commercial vendor or any other organization.
+
+### 3rd Party Channels
+
+* 3rd parties who contribute to or use the Polaris project may ask the (P)PMC to get a dedicated public channel, for
+  example #vendor-<vendor-name> or #project-<project-name>.
+* Promotion of 3rd party content is only permitted in these 3rd party channels, and only if the content primarily covers
+  Polaris. Commercial advertisements in any form are prohibited.
+* Interaction with users of 3rd party OSS projects or commercial products should be directed to these 3rd party
+  channels.
+
+## Content moderation
+
+* User content in any form is not moderated.
+* The (P)PMC reserves the right to remove/delete commercial advertisements without notice, authors are notified about
+  the removal.
+* The (P)PMC further reserves the right to remove/delete content that violates the “Code of Conduct” without notice.