gtctl feat: dashboard use ip instead of localhost

issue: https://github.com/GreptimeTeam/gtctl/issues/211
summary: dashboard link log use ip instead of localhost

Summary by CodeRabbit

New Features
- Enhanced logging functionality with a new method for accessing the dashboard.
- Introduced a new utility function to dynamically retrieve the machine's IP address.
Improvements
- Increased visibility of the Frontend struct, making it accessible from other packages.
- Improved API usability by aligning method signatures with the new exported struct definition.
Refactor
- Adjusted the type of the Frontend component for more specialized functionality within the cluster architecture.

Aug 17 '24 10:08 leaf-potato

Walkthrough

This update enhances the structure and functionality of the bare metal cluster components. Key modifications include updating the Frontend type for greater specificity, improving logging dynamics in the cluster's wait method, and increasing the visibility of the Frontend struct. A new utility function for resolving hostnames to IP addresses has also been introduced, streamlining operations. Overall, these changes aim to enhance usability and maintainability within the system.

Changes

Files	Change Summary
pkg/cluster/baremetal/cluster.go, pkg/cluster/baremetal/create.go	Changed `Frontend` field type in `ClusterComponents` for better specificity, and modified the `Wait` method to dynamically log dashboard information using `PrintDashboardLog()`, enhancing logging flexibility.
pkg/components/frontend.go	Renamed `frontend` struct to `Frontend` for export, updated related methods, and added a new method `PrintDashboardLog` for improved dashboard logging functionality.
pkg/components/utils.go	Introduced `HostnameIP` function to retrieve the hostname and resolve it to an IP address, enhancing dynamic address retrieval.
Makefile	Added an empty line after the `help` target for improved readability in the Makefile.

Sequence Diagram(s)

sequenceDiagram
    participant Cluster
    participant Frontend
    participant Logger

    Cluster->>Frontend: Wait call
    alt Close is false
        Frontend->>Logger: PrintDashboardLog()
        Logger->>Logger: Log dashboard URL
    else Close is true
        Logger->>Logger: Log shutdown warning
    end

🐇 "In clusters where changes abound,
A frontend shines, no longer bound.
With logs that flow like a stream,
And IPs found in a gleam.
Oh, hop with joy, my friends, and cheer,
For a better code is finally here!"
🌼✨

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Aug 17 '24 10:08 coderabbitai[bot]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 40.84%. Comparing base (ff41601) to head (f2ad33d).

Files	Patch %	Lines
pkg/cluster/baremetal/create.go	0.00%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #212   +/-   ##
========================================
  Coverage    40.84%   40.84%           
========================================
  Files           16       16           
  Lines          994      994           
========================================
  Hits           406      406           
  Misses         483      483           
  Partials       105      105

:umbrella: View full report in Codecov by Sentry.
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