docker/httpd: Configuration error: No MPM loaded

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(edit, thanks delboy1978uk) The error could be avoided if applied a simple best practice: pin your docker images to lớn a specific version instead of latest.


After digging the commits of the official httpd image, I found the solution. (maybe this question/answer may help others)

For those who stumble onto this note while looking for a solution, just add LoadModule mpm_event_module modules/mod_mpm_event.so into httpd.conf above the other LoadModule directives.

(from the comments on the commit #17166574)

So, because I was overriding the tệp tin /usr/local/apache2/conf/httpd.conf without explicitly declare an MPM module, after this commit, my image started to lớn fail.
With this quick fix, everything is fine now.

For the complete correction, add this to lớn your httpd.conf tệp tin (thanks svinther):

LoadModule mpm_event_module modules/mod_mpm_event.so
#LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
#LoadModule mpm_worker_module modules/mod_mpm_worker.so

or, for a more future-proof solution, you could modify the original http.conf tệp tin using sed.