Update Ruby version to 4.0 and adjust related documentation#401
Merged
abdurriq merged 20 commits intodevcontainers:mainfrom Feb 26, 2026
Merged
Update Ruby version to 4.0 and adjust related documentation#401abdurriq merged 20 commits intodevcontainers:mainfrom
abdurriq merged 20 commits intodevcontainers:mainfrom
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… conditional gem installation
Kaniska244
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Feb 20, 2026
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Looks fine. Added one comment for test script.
Kaniska244
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Feb 24, 2026
abdurriq
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abdurriq
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I think the major versions are not consistent across the files; would appreciate if you could address this.
abdurriq
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Feb 25, 2026
abdurriq
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Feb 25, 2026
abdurriq
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abdurriq
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abdurriq
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Feb 26, 2026
abdurriq
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Feb 26, 2026
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This PR updates the Ruby version to 4.0. During the upgrade process, several issues were encountered, and the necessary changes to resolve them have been implemented. The details of these fixes are outlined below.
Primary Objectives Achieved
Fixed Critical Docker Container Issues https://github.com/devcontainers/templates/actions/runs/22171234642/job/64109405595
Problem: Ruby-rails-postgres template failing with namespace errors and PostgreSQL compatibility issues
Root Cause: network_mode: service:db caused container startup failures in automated environments
Solution: Implemented proper Docker networking with custom bridge networks
Enhanced Template Reliability
Problem: Tests failing due to network dependencies and PostgreSQL version conflicts
Solution:
Technical Changes Implemented
Docker Networking Overhaul
Health Check Implementation
The previous network_mode: service:db caused container startup failures in automated environments
This approach is more reliable and works consistently across different deployment scenarios
Test Script Improvements
Comments Added