31 lines
1.0 KiB
Bash
Executable File
31 lines
1.0 KiB
Bash
Executable File
#!/usr/local/bin/bash
|
|
|
|
# This subscript is expected to be run inside docker container using 'bash'
|
|
# image. The image is based on Alpine Linux. It's tools (find, stat, awk, sort)
|
|
# are non-standard versions from BusyBox.
|
|
|
|
MAX_CACHE_DIR_SIZE=20000000000
|
|
MAX_KEEP_FILE_SIZE=1000000000
|
|
|
|
total=0
|
|
|
|
# We sort files by time, newest files are first. Format is:
|
|
# time (last modification as seconds since Epoch), filepath, size (bytes)
|
|
find /home/user/skynet-webportal/docker/data/nginx/cache -type f -exec stat -c "%Y %n %s" {} + | sort -rgk1 | while read line
|
|
do
|
|
size=$(echo $line | awk '{print $3}')
|
|
new_total=$(($total + $size))
|
|
|
|
# We always delete all files larger than MAX_KEEP_FILE_SIZE.
|
|
# We keep all files smaller than MAX_KEEP_FILE_SIZE when cache size is
|
|
# below MAX_CACHE_DIR_SIZE, then we delete also smaller files.
|
|
if (("$size" <= "$MAX_KEEP_FILE_SIZE" && "$new_total" < "$MAX_CACHE_DIR_SIZE"))
|
|
then
|
|
total=$new_total
|
|
continue
|
|
fi
|
|
|
|
filename=$(echo $line | awk '{print $2}')
|
|
rm $filename
|
|
done
|