f6f013b992
/etc/apache2/apache2.conf was configured to log in this way: > ErrorLog /proc/self/fd/2 > CustomLog /proc/self/fd/1 combined This causes apache to reopen the already-opened fds. It works fine when the file descriptors are pipes or ttys but it fails when they are Unix sockets because sockets cannot be opened with the open() syscall. The issue happens when apache is connected to systemd-journald, like in the rkt container run-time. This patch uses "cat" to directly write to the stdio fds without reopening them. apache2.conf now looks like: > ErrorLog "|$/bin/cat 1>&2" > CustomLog "|/bin/cat" combined It works both with Docker and rkt (tested with and without --interactive). Symptoms: > [ 2673.478868] apache2-foreground[4]: (6)No such device or address: > AH00091: apache2: could not open error log file /proc/self/fd/2. See also: https://github.com/coreos/rkt/issues/2300
32 lines
1.3 KiB
Docker
32 lines
1.3 KiB
Docker
# Copyright 2016 The Kubernetes Authors All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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FROM php:5-apache
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RUN apt-get update
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RUN apt-get install -y php-pear
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RUN pear channel-discover pear.nrk.io
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RUN pear install nrk/Predis
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# If the container's stdio is connected to systemd-journald,
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# /proc/self/fd/{1,2} are Unix sockets and apache will not be able to open()
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# them. Use "cat" to write directly to the already opened fds without opening
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# them again.
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RUN sed -i 's#ErrorLog /proc/self/fd/2#ErrorLog "|$/bin/cat 1>\&2"#' /etc/apache2/apache2.conf
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RUN sed -i 's#CustomLog /proc/self/fd/1 combined#CustomLog "|/bin/cat" combined#' /etc/apache2/apache2.conf
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ADD guestbook.php /var/www/html/guestbook.php
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ADD controllers.js /var/www/html/controllers.js
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ADD index.html /var/www/html/index.html
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