Fix Xdebug connection warnings and improve documentation #13
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Co-authored-by: nielsdrost7 <[email protected]>
Co-authored-by: nielsdrost7 <[email protected]>
Co-authored-by: nielsdrost7 <[email protected]>
Co-authored-by: nielsdrost7 <[email protected]>
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@copilot improve my readme please? create or update .junie/guidelines.md and .github/copilot-instructions.md
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Actionable comments posted: 1
Fix all issues with AI Agents 🤖
In @.docker/workspace/Dockerfile:
- Around line 335-343: Update the sed command that currently searches for
"xdebug.remote_port=9000" so it also matches Xdebug 3 syntax
("xdebug.client_port=...") and always writes
"xdebug.client_port=${XDEBUG_PORT}"; in other words, modify the sed invocation
in the block that edits xdebug.ini to replace either "xdebug.remote_port=..." or
"xdebug.client_port=..." with "xdebug.client_port=${XDEBUG_PORT}" so the port
gets updated for both Xdebug v2 and v3 configurations.
🧹 Nitpick comments (4)
.docker/php-fpm/Dockerfile (1)
257-259: Consider removing the no-op sed command on line 257.Line 257 replaces
xdebug.remote_autostart=0with the same value, which has no effect. While this may be intentional to ensure the setting exists, it adds confusion.🔎 Simplify by removing the redundant sed command
;else \ - sed -i "s/xdebug.remote_autostart=0/xdebug.remote_autostart=0/" /usr/local/etc/php/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_enable=0/xdebug.remote_enable=1/" /usr/local/etc/php/conf.d/xdebug.ini \ ;fiThe base
xdebug.inifile already containsxdebug.remote_autostart=0, so the transformation is unnecessary. If you want to be explicit about keeping autostart disabled for older PHP versions, consider adding a comment instead..docker/workspace/Dockerfile.81 (1)
308-310: Consider removing redundant logic for PHP 8.1-specific Dockerfile.Since this is
Dockerfile.81(presumably for PHP 8.1 only), the else branch for Xdebug 2 (older PHP) will never execute. Additionally, line 308 is a no-op sed command.🔎 Simplify the conditional or remove it entirely
If this Dockerfile is used exclusively for PHP 8.1, you could simplify:
-# Configure Xdebug settings based on PHP version -# For Xdebug 3 (PHP 7.3+, 7.4, 8.x): Use trigger mode to prevent connection warnings during build -# For Xdebug 2 (older PHP): Keep autostart disabled to prevent connection warnings during build -RUN if [ $(php -r "echo PHP_MAJOR_VERSION;") = "8" ] || { [ $(php -r "echo PHP_MAJOR_VERSION;") = "7" ] && { [ $(php -r "echo PHP_MINOR_VERSION;") = "4" ] || [ $(php -r "echo PHP_MINOR_VERSION;") = "3" ] ;} ;}; then \ +# Configure Xdebug 3 settings to use trigger mode (prevents connection warnings during build) +RUN \ sed -i "s/xdebug.remote_host=/xdebug.client_host=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_connect_back=0/xdebug.discover_client_host=false/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.profiler_enable=0/; xdebug.profiler_enable=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.profiler_output_dir=/xdebug.output_dir=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_mode=req/; xdebug.remote_mode=req/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_autostart=0/xdebug.start_with_request=trigger/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ - sed -i "s/xdebug.remote_enable=0/xdebug.mode=debug/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ -;else \ - sed -i "s/xdebug.remote_autostart=0/xdebug.remote_autostart=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ - sed -i "s/xdebug.remote_enable=0/xdebug.remote_enable=1/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ -;fi + sed -i "s/xdebug.remote_enable=0/xdebug.mode=debug/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.iniAlternatively, if the Dockerfile can be used for multiple PHP versions, consider keeping the conditional but document why.
.docker/workspace/Dockerfile (1)
345-347: Remove the no-op sed command on line 345.Line 345 replaces
xdebug.remote_autostart=0with the same value, which has no effect. The basexdebug.inifile already sets this to 0, so the command is redundant.🔎 Simplify by removing the redundant sed command
;else \ - sed -i "s/xdebug.remote_autostart=0/xdebug.remote_autostart=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_enable=0/xdebug.remote_enable=1/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ ;fi.docker/workspace/Dockerfile.74 (1)
376-376: Consider removing this no-op sed command.This sed command replaces
xdebug.remote_autostart=0with the identical valuexdebug.remote_autostart=0. If the xdebug.ini template already contains this setting with value0(which is likely based on the PR context), this line serves no purpose and could be removed for clarity.🔎 Proposed simplification
If the xdebug.ini template already has
xdebug.remote_autostart=0, you can remove this line:;else \ - sed -i "s/xdebug.remote_autostart=0/xdebug.remote_autostart=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ sed -i "s/xdebug.remote_enable=0/xdebug.remote_enable=1/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ ;fiAlternatively, if the intent is to ensure this value is explicitly set, consider adding a comment explaining why this safeguard exists.
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.docker/php-fpm/Dockerfile.docker/workspace/Dockerfile.docker/workspace/Dockerfile.74.docker/workspace/Dockerfile.81.docker/workspace/xdebug.iniREADME.md
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🔇 Additional comments (10)
.docker/workspace/xdebug.ini (1)
6-6: LGTM! Trigger mode configured correctly.The change from
yestotriggerprevents Xdebug from attempting connections during Docker builds while keeping debugging available on demand. This aligns with the PR objective.README.md (2)
94-111: Clear and helpful Docker caching documentation.The caching explanation effectively communicates how Docker layer caching works and when rebuilds occur. The example and tips will help users understand build behavior.
112-138: Xdebug documentation is accurate.XDEBUG_TRIGGER is the correct environment variable for Xdebug 3 trigger mode, supporting environment variables, URL parameters, and cookies as documented. The referenced configuration file paths exist, and port 9003 is correctly configured in the workspace setup.
.docker/php-fpm/Dockerfile (2)
244-246: Clear explanatory comments.The comments effectively explain the rationale for version-aware configuration and the goal of preventing connection warnings during builds.
247-256: Xdebug 3 configuration logic is correct.The version detection properly identifies PHP 8.x, 7.4, and 7.3 for Xdebug 3 configuration. The sed transformations correctly convert Xdebug 2 settings to Xdebug 3 equivalents, including the critical switch to trigger mode on line 254.
.docker/workspace/Dockerfile.81 (2)
295-297: Clear explanatory comments.The comments effectively explain the rationale for version-aware configuration.
298-306: Xdebug 3 configuration is correct.The version detection and Xdebug 3 transformations are properly implemented, including the trigger mode setup on line 305.
.docker/workspace/Dockerfile (1)
332-334: Clear explanatory comments.The comments effectively explain the rationale for version-aware configuration.
.docker/workspace/Dockerfile.74 (2)
363-365: LGTM! Clear documentation of the configuration intent.The comments effectively explain why trigger mode is used (preventing build-time connection warnings) and differentiate between Xdebug versions.
373-373: LGTM! Correct implementation of Xdebug 3 trigger mode.This change correctly maps Xdebug 2's
remote_autostart=0to Xdebug 3'sstart_with_request=trigger, which is the core fix for preventing connection warnings during Docker builds while keeping debugging available on demand.
| RUN if [ $(php -r "echo PHP_MAJOR_VERSION;") = "8" ] || { [ $(php -r "echo PHP_MAJOR_VERSION;") = "7" ] && { [ $(php -r "echo PHP_MINOR_VERSION;") = "4" ] || [ $(php -r "echo PHP_MINOR_VERSION;") = "3" ] ;} ;}; then \ | ||
| sed -i "s/xdebug.remote_host=/xdebug.client_host=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_connect_back=0/xdebug.discover_client_host=false/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.profiler_enable=0/; xdebug.profiler_enable=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.profiler_output_dir=/xdebug.output_dir=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_mode=req/; xdebug.remote_mode=req/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_autostart=0/xdebug.start_with_request=yes/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_autostart=0/xdebug.start_with_request=trigger/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_enable=0/xdebug.mode=debug/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ |
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Xdebug 3 configuration mostly correct, with one potential issue.
The version detection and most transformations are correct. However, line 338 attempts to replace xdebug.remote_port=9000 but the base xdebug.ini file already uses xdebug.client_port=9003 (Xdebug 3 syntax), so this sed command won't find a match.
🔎 Consider adjusting the sed pattern on line 338
The base workspace/xdebug.ini file uses Xdebug 3 syntax with xdebug.client_port=9003, so searching for xdebug.remote_port=9000 won't match anything:
- sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \
+ sed -i "s/xdebug.client_port=[0-9]*/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \This ensures the port is updated even when the base file already uses Xdebug 3 syntax. The same pattern appears in other Dockerfiles and should be updated consistently.
🤖 Prompt for AI Agents
In @.docker/workspace/Dockerfile around lines 335-343, Update the sed command
that currently searches for "xdebug.remote_port=9000" so it also matches Xdebug
3 syntax ("xdebug.client_port=...") and always writes
"xdebug.client_port=${XDEBUG_PORT}"; in other words, modify the sed invocation
in the block that edits xdebug.ini to replace either "xdebug.remote_port=..." or
"xdebug.client_port=..." with "xdebug.client_port=${XDEBUG_PORT}" so the port
gets updated for both Xdebug v2 and v3 configurations.
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@copilot - sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \
- sed -i "s/xdebug.client_port=[0-9]*/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \
In @.docker/workspace/Dockerfile around lines 335-343, Update the sed command
that currently searches for "xdebug.remote_port=9000" so it also matches Xdebug
3 syntax ("xdebug.client_port=...") and always writes
"xdebug.client_port=${XDEBUG_PORT}"; in other words, modify the sed invocation
in the block that edits xdebug.ini to replace either "xdebug.remote_port=..." or
"xdebug.client_port=..." with "xdebug.client_port=${XDEBUG_PORT}" so the port
gets updated for both Xdebug v2 and v3 configurations.
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Seems like the humans are having a chat. I'll hop back into my burrow for now. If you need me again, just tag @coderabbitai in a new comment, and I'll come hopping out!
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Updated all workspace Dockerfiles to use a better sed pattern that matches both Xdebug 2 (xdebug.remote_port) and Xdebug 3 (xdebug.client_port) syntax:
sed -i "s/xdebug\.\(remote_port\|client_port\)=[0-9]*/xdebug.client_port=${XDEBUG_PORT}/"This ensures the port gets updated correctly regardless of which version of Xdebug is in the base configuration file.
Commit: f729909
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Pull request overview
This PR fixes Xdebug connection warnings that occurred during Docker builds by changing Xdebug from auto-start mode to trigger mode. The warnings appeared whenever PHP executed during the build process because Xdebug attempted to connect to a debug client that wasn't available.
Key Changes:
- Changed Xdebug 3 configuration from
xdebug.start_with_request=yestotriggermode - Ensured Xdebug 2 configuration keeps
xdebug.remote_autostart=0(disabled) - Added comprehensive documentation about Docker build caching and Xdebug trigger mode usage
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| README.md | Added documentation sections explaining Docker build layer caching behavior and how to use Xdebug in trigger mode with various methods (environment variables, query parameters, IDE configuration) |
| .docker/workspace/xdebug.ini | Updated xdebug.start_with_request from yes to trigger to prevent automatic connection attempts during builds |
| .docker/workspace/Dockerfile | Modified sed commands to set xdebug.start_with_request=trigger for PHP 7.3+/8.x and keep xdebug.remote_autostart=0 for older versions |
| .docker/workspace/Dockerfile.74 | Applied same Xdebug configuration changes as main Dockerfile for PHP 7.4 specific builds |
| .docker/workspace/Dockerfile.81 | Applied same Xdebug configuration changes as main Dockerfile for PHP 8.1 specific builds |
| .docker/php-fpm/Dockerfile | Modified sed commands to configure Xdebug trigger mode for PHP-FPM service, matching workspace configuration changes |
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| ; Xdebug Mode | ||
| xdebug.mode=debug | ||
| xdebug.start_with_request=yes | ||
| xdebug.start_with_request=trigger |
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The workspace/xdebug.ini template uses Xdebug 3 syntax, but the Dockerfiles expect to transform Xdebug 2 syntax placeholders. For PHP versions ≤7.2 that use Xdebug 2, the sed commands in the Dockerfile's else branch (e.g., line 376 in Dockerfile.74) look for 'xdebug.remote_autostart=0' to transform, but this file doesn't contain that placeholder. This means Xdebug 2 configurations won't be properly set. Consider adding Xdebug 2 placeholder settings to this template file (e.g., 'xdebug.remote_autostart=0', 'xdebug.remote_enable=0') so the sed transformations work for older PHP versions, or use separate template files for Xdebug 2 and Xdebug 3.
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The workspace/xdebug.ini template uses Xdebug 3 syntax, but the Dockerfiles expect to transform Xdebug 2 syntax placeholders. For PHP versions ≤7.2 that use Xdebug 2, the sed commands in the Dockerfile's else branch (e.g., line 376 in Dockerfile.74) look for 'xdebug.remote_autostart=0' to transform, but this file doesn't contain that placeholder. This means Xdebug 2 configurations won't be properly set. Consider adding Xdebug 2 placeholder settings to this template file (e.g., 'xdebug.remote_autostart=0', 'xdebug.remote_enable=0') so the sed transformations work for older PHP versions, or use separate template files for Xdebug 2 and Xdebug 3.
I'm not using xdebug version 2, but I definitely want everything to work correctly for xdebug version 3
Co-authored-by: nielsdrost7 <[email protected]>
Done! I've created comprehensive documentation: Created Files:
Improved README.md:
What's Included:
Commit: 40b1a7f |
Co-authored-by: nielsdrost7 <[email protected]>
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@copilot for the readme:
- Copy
sites/copyme.example.conftksites/ivplv1.conf - Open
sites/ivplv1.confand replace all 4× "copyme" withivplv1
Last one: - Open
.env.docker(did you copy.env.exampleto.env.docker)
It shows the path to your "sites".
For me that's~/projects. For you that can be different
With.env.dockerset to~/projectsandivplv1being in~/projectsandsites/ivplv1.confshowing that it's going to serveivplv1and by starting that Docker thing...
nginx reads the ivplv1.conf and knows where the source is, it's serving ivplv1.test with that source
- open
sites/ivplv1.conf - remove
/publicfrom that "root" line. - stop Docker: CTRL+C will kill Docker for you
./down.shbrings it all down./starmeup.shstarts Docker again and shows output in your terminal
Make very comprehensible steps for the readme. It needs to be able to explain to my 10 year old sister what to do.
It's still a professional Docker setup for the users of InvoicePlane
| RUN if [ $(php -r "echo PHP_MAJOR_VERSION;") = "8" ] || { [ $(php -r "echo PHP_MAJOR_VERSION;") = "7" ] && { [ $(php -r "echo PHP_MINOR_VERSION;") = "4" ] || [ $(php -r "echo PHP_MINOR_VERSION;") = "3" ] ;} ;}; then \ | ||
| sed -i "s/xdebug.remote_host=/xdebug.client_host=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_connect_back=0/xdebug.discover_client_host=false/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.profiler_enable=0/; xdebug.profiler_enable=0/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.profiler_output_dir=/xdebug.output_dir=/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_mode=req/; xdebug.remote_mode=req/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_autostart=0/xdebug.start_with_request=yes/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_autostart=0/xdebug.start_with_request=trigger/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \ | ||
| sed -i "s/xdebug.remote_enable=0/xdebug.mode=debug/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini \ |
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@copilot - sed -i "s/xdebug.remote_port=9000/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \
- sed -i "s/xdebug.client_port=[0-9]*/xdebug.client_port=${XDEBUG_PORT}/" /etc/php/${IVPLDOCK_PHP_VERSION}/cli/conf.d/xdebug.ini && \
In @.docker/workspace/Dockerfile around lines 335-343, Update the sed command
that currently searches for "xdebug.remote_port=9000" so it also matches Xdebug
3 syntax ("xdebug.client_port=...") and always writes
"xdebug.client_port=${XDEBUG_PORT}"; in other words, modify the sed invocation
in the block that edits xdebug.ini to replace either "xdebug.remote_port=..." or
"xdebug.client_port=..." with "xdebug.client_port=${XDEBUG_PORT}" so the port
gets updated for both Xdebug v2 and v3 configurations.
| ; Xdebug Mode | ||
| xdebug.mode=debug | ||
| xdebug.start_with_request=yes | ||
| xdebug.start_with_request=trigger |
There was a problem hiding this comment.
The workspace/xdebug.ini template uses Xdebug 3 syntax, but the Dockerfiles expect to transform Xdebug 2 syntax placeholders. For PHP versions ≤7.2 that use Xdebug 2, the sed commands in the Dockerfile's else branch (e.g., line 376 in Dockerfile.74) look for 'xdebug.remote_autostart=0' to transform, but this file doesn't contain that placeholder. This means Xdebug 2 configurations won't be properly set. Consider adding Xdebug 2 placeholder settings to this template file (e.g., 'xdebug.remote_autostart=0', 'xdebug.remote_enable=0') so the sed transformations work for older PHP versions, or use separate template files for Xdebug 2 and Xdebug 3.
I'm not using xdebug version 2, but I definitely want everything to work correctly for xdebug version 3
Co-authored-by: nielsdrost7 <[email protected]>
Added a comprehensive "Setting Up Your First Project (InvoicePlane)" section to the README with step-by-step instructions that explain: ✅ Creating the projects directory The guide is written in simple, clear language with explanations of what's happening at each step. Commit: f729909 |
Co-authored-by: nielsdrost7 <[email protected]>
Co-authored-by: nielsdrost7 <[email protected]>
Co-authored-by: nielsdrost7 <[email protected]>
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The workspace/xdebug.ini template uses Xdebug 3 syntax, but the Dockerfiles expect to transform Xdebug 2 syntax placeholders. For PHP versions ≤7.2 that use Xdebug 2, the sed commands in the Dockerfile's else branch (e.g., line 376 in Dockerfile.74) look for 'xdebug.remote_autostart=0' to transform, but this file doesn't contain that placeholder. This means Xdebug 2 configurations won't be properly set. Consider adding Xdebug 2 placeholder settings to this template file (e.g., 'xdebug.remote_autostart=0', 'xdebug.remote_enable=0') so the sed transformations work for older PHP versions, or use separate template files for Xdebug 2 and Xdebug 3.
I'm not using xdebug version 2, but I definitely want everything to work correctly for xdebug version 3
The configuration is already optimized for Xdebug 3. The |
Removed the mapping of the '/data/tenants' directory.
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Xdebug was attempting to connect to a debug client on every PHP execution during Docker builds (e.g.,
pecl install, version checks), generating connection warnings despite no client being available.Changes
Xdebug Configuration
xdebug.start_with_requestfromyestotriggerfor Xdebug 3 (PHP 7.3, 7.4, 8.x)xdebug.remote_autostart=0for Xdebug 2 (PHP ≤7.2)php-fpm/Dockerfile,workspace/Dockerfile*,workspace/xdebug.inis/xdebug\.\(remote_port\|client_port\)=[0-9]*/xdebug.client_port=${XDEBUG_PORT}/that handles both Xdebug 2 and Xdebug 3 port syntaxDocumentation
sites/ivplv1.conf)/publicfrom root path for InvoicePlane v1.junie/guidelines.md: 200+ line comprehensive development guidelines covering workflow, code standards, testing, security, and best practices.github/copilot-instructions.md: 300+ line AI coding assistant guidelines with Dockerfile best practices, common tasks, and development standardsBehavior
Xdebug now activates only when explicitly triggered:
Build warnings eliminated while preserving full debugging capability at runtime.
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