saltstack / saltstack/salt

[DOCS] 3008.x - Master Cluster Configuration Requires Interface Setting

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Description

Description
If the master configuration on a cluster peer does not have the interface IP set, the default of 0.0.0.0 will be used. This will cause raft communication to not function between peers and errors like this will show up in /var/log/salt/master:

2026-07-19 08:21:19,024 [salt.cluster.consensus.peer:327 ][WARNING ][2460] RaftDispatcher: no pusher for 0.0.0.0, dropping cluster/raft/pre-request-vote-reply reply

This comment confirms the configuration requirement:

https://github.com/saltstack/salt/blob/b4987fd01302af213f5da198ab3fba2d9481a31a/salt/cluster/consensus/service.py#L79-L83

Suggested Fix
Add documentation indicating that interface must be set in the master configuration for peer communication to work in a master cluster.

Type of documentation
Salt documentation

Location or format of documentation
Master Cluster Documentation

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the Master Cluster Documentation and the referenced salt/cluster/consensus/service.py lines 79-83 to confirm how the interface setting affects peer communication. Update the master cluster documentation to state that interface must be set in the master configuration, and verify that the requirement and its purpose are clear.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Clearly specified
Newbie friendliness
78/100

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