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Posted to commits@iggy.apache.org by "YangSiJun528 (via GitHub)" <gi...@apache.org> on 2025/11/03 13:04:17 UTC

[I] Clarify that --with-default-root-credentials only apply on first server start [iggy]

YangSiJun528 opened a new issue, #2308:
URL: https://github.com/apache/iggy/issues/2308

   ### Issue
   The `--with-default-root-credentials` flag only works on first server start. (when no `local_data` directory exists)
   On subsequent starts, the flag is ignored but the server still logs:
   ```
   INFO iggy_server: Using default root credentials (username: iggy, password: iggy) - FOR DEVELOPMENT ONLY!
   ```
   This misleads users into thinking the credentials are active when they're not.
   
   This also affects users who manually set `IGGY_ROOT_USERNAME` and `IGGY_ROOT_PASSWORD` environment variables after the server has already created a root user.
   
   ### Steps to Reproduce
   ```bash
   # First run - creates root user with random password
   cargo run --bin iggy-server
   # Stop and restart with flag
   cargo run --bin iggy-server -- --with-default-root-credentials
   # Authentication fails
   cargo run --example getting-started-producer
   ```
   
   ### Root Cause
   The flag sets `IGGY_ROOT_USERNAME=iggy` and `IGGY_ROOT_PASSWORD=iggy` environment variables, but `load_users()` in `core/server/src/streaming/systems/users.rs` only creates a new root user when `users.is_empty()`.
   Since `local_data` already contains the user from the first run, the flag is silently ignored.
   
   ### Proposed Fix
   - Add warning log when flag/environment variables are used but users already exist
   - Add information in README that existing user data persists across restarts
   - Update CLI help text to clarify this behavior


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Re: [I] Clarify that --with-default-root-credentials only apply on first server start [iggy]

Posted by "YangSiJun528 (via GitHub)" <gi...@apache.org>.
YangSiJun528 commented on issue #2308:
URL: https://github.com/apache/iggy/issues/2308#issuecomment-3489983373

   Resolved by #2312.


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Re: [I] Clarify that --with-default-root-credentials only apply on first server start [iggy]

Posted by "YangSiJun528 (via GitHub)" <gi...@apache.org>.
YangSiJun528 closed issue #2308: Clarify that --with-default-root-credentials only apply on first server start
URL: https://github.com/apache/iggy/issues/2308


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