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Replace crond with a while loop.

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Adding the cron command to  /var/spool/cron/crontabs/www-data assumes
that cron, and by extension the nextcloud app, is run as 'www-data'.

'crond' cannot be used with:
exec "echo \"*/%%CRONTAB_INT%% * * * * php -f /var/www/html/cron.php\" | crontab - && crond -f -l 0 -L /dev/stdout"
because that assumes the uid used matches a entry in '/etc/passwd'.

Signed-off-by: Roland Vet <vet.roland@gmail.com>
This commit is contained in:
Roland Vet 2021-04-06 12:56:35 +02:00
parent e26adedbdb
commit 0c7ef56635
4 changed files with 10 additions and 8 deletions
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3
Dockerfile-alpine.template
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@ -7,8 +7,7 @@ RUN set -ex; \
rsync \
; \
\
rm /var/spool/cron/crontabs/root; \
echo '*/%%CRONTAB_INT%% * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
rm /var/spool/cron/crontabs/root
# install the PHP extensions we need
# see https://docs.nextcloud.com/server/stable/admin_manual/installation/source_installation.html

5
Dockerfile-debian.template
View file

@ -10,10 +10,7 @@ RUN set -ex; \
busybox-static \
libldap-common \
; \
rm -rf /var/lib/apt/lists/*; \
\
mkdir -p /var/spool/cron/crontabs; \
echo '*/%%CRONTAB_INT%% * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data
rm -rf /var/lib/apt/lists/*
# install the PHP extensions we need
# see https://docs.nextcloud.com/server/stable/admin_manual/installation/source_installation.html

5
docker-cron.sh
View file

@ -1,4 +1,7 @@
#!/bin/sh
set -eu
exec busybox crond -f -l 0 -L /dev/stdout
while [ 1 ]; do
(php -f /var/www/html/cron.php &);
sleep %%CRONTAB_INT%%m;
done

5
update.sh
View file

@ -111,7 +111,6 @@ function create_variant() {
s/%%MEMCACHED_VERSION%%/'"${pecl_versions[memcached]}"'/g;
s/%%REDIS_VERSION%%/'"${pecl_versions[redis]}"'/g;
s/%%IMAGICK_VERSION%%/'"${pecl_versions[imagick]}"'/g;
s/%%CRONTAB_INT%%/'"$crontabInt"'/g;
' "$dir/Dockerfile"
case "$phpVersion" in
@ -132,6 +131,10 @@ function create_variant() {
for name in entrypoint cron; do
cp "docker-$name.sh" "$dir/$name.sh"
done
# Replace the variable.
sed -ri -e '
s/%%CRONTAB_INT%%/'"$crontabInt"'/g;
' "$dir/cron.sh"
# Copy the upgrade.exclude
cp upgrade.exclude "$dir/"