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Merge pull request #320 from glitch-soc/dockerfile-stack-space
dockerfile: Give more stack space to /sbin/tini
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commit
8c08c852bc
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@ -61,6 +61,9 @@ RUN apk -U upgrade \
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&& rm -rf /tmp/* /var/cache/apk/*
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COPY Gemfile Gemfile.lock package.json yarn.lock .yarnclean /mastodon/
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COPY stack-fix.c /lib
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RUN gcc -shared -fPIC /lib/stack-fix.c -o /lib/stack-fix.so
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RUN rm /lib/stack-fix.c
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RUN bundle config build.nokogiri --with-iconv-lib=/usr/local/lib --with-iconv-include=/usr/local/include \
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&& bundle install -j$(getconf _NPROCESSORS_ONLN) --deployment --without test development \
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@ -11,4 +11,4 @@ echo "Updating permissions..."
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find /mastodon -path /mastodon/public/system -prune -o -not -user mastodon -not -group mastodon -print0 | xargs -0 chown -f mastodon:mastodon
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echo "Executing process..."
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exec su-exec mastodon:mastodon /sbin/tini -- "$@"
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LD_PRELOAD=/lib/stack-fix.so exec su-exec mastodon:mastodon /sbin/tini -- "$@"
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32
stack-fix.c
Normal file
32
stack-fix.c
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@ -0,0 +1,32 @@
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#include <dlfcn.h>
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#include <pthread.h>
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#include <stdio.h>
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// THIS IS TO AVOID A SIGFAULT WHEN RUNNING python3.6 manage.py runserver
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// This should be fixed at some point by Alpine and/or Python
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// Check this issue for more info
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// https://github.com/docker-library/python/issues/211
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typedef int (*func_t)(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg);
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int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg) {
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pthread_attr_t local;
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int used = 0, ret;
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if (!attr) {
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used = 1;
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pthread_attr_init(&local);
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attr = &local;
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}
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pthread_attr_setstacksize((void*)attr, 2 * 1024 * 1024); // 2 MB
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func_t orig = (func_t)dlsym(RTLD_NEXT, "pthread_create");
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ret = orig(thread, attr, start_routine, arg);
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if (used) {
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pthread_attr_destroy(&local);
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}
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return ret;
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}
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