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https://issues.apache.org/jira/browse/HDDS-15778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18108724#comment-18108724
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Dian-Xuan Yang commented on HDDS-15778:
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Hello! I would like to work on this issue!
Since the description covers multiple distinct changes, I plan to keep this as
the parent issue and split the implementation into two sub-tasks to make the
review process smoother:
*Sub-task 1: Construct listeners from separate host and port values*
Setting a bind-host to an IPv6 literal (like `::`) currently fails at startup
due to string concatenation issues. I will update the affected methods across
`HddsUtils`, `HddsServerUtil`, `ScmUtils`, `BaseHttpServer`, and `OmUtils` to
use the bracket-aware `HddsUtils.getHostPortString`. I will also add unit
tests. IPv4 and DNS defaults will remain unchanged.
*Sub-task 2: Validate advertised addresses before startup/registration*
I will implement validation to reject wildcard, link-local, and scoped IPv6
addresses for advertised endpoints using existing predicates.
*(Note: OS-specific address family verification and user documentation are out
of scope here and belong in HDDS-15779 and HDDS-15780 respectively.)*
> Support explicit IPv6 listeners and advertised-address validation
> -----------------------------------------------------------------
>
> Key: HDDS-15778
> URL: https://issues.apache.org/jira/browse/HDDS-15778
> Project: Apache Ozone
> Issue Type: Task
> Reporter: Siyao Meng
> Priority: Major
>
> Existing IPv4 listener defaults must remain unchanged. Ozone must allow
> operators to opt into IPv6 listeners without treating a successful IPv6 bind
> as proof of IPv4 reachability.
> Requirements:
> * Preserve the existing IPv4 defaults, including 0.0.0.0.
> * Accept DNS names, IPv4 literals, IPv6 literals, and :: in the applicable
> bind-host settings.
> * Cover SCM, OM, datanode, Recon, S3 Gateway, HTTPFS Gateway, HTTP/HTTPS,
> gRPC, and Ratis listeners.
> * Construct listeners from separate host and port values.
> * Keep bind addresses separate from advertised peer and client addresses.
> * Reject wildcard, link-local, and scoped IPv6 addresses in
> advertised-endpoint settings.
> * Reject invalid advertised addresses before startup, registration, or
> publication.
> * Verify the address families accepted by :: on each supported operating
> system; do not assume dual-stack behavior.
> * Add component tests for listener construction and advertised-address
> validation.
> Operator guidance is tracked by HDDS-15780.
> Parent epic: HDDS-15763.
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