diff --git a/data/helpers.d/backend b/data/helpers.d/backend new file mode 100644 index 000000000..efc180d90 --- /dev/null +++ b/data/helpers.d/backend @@ -0,0 +1,53 @@ +# Use logrotate to manage the logfile +# +# usage: ynh_use_logrotate [logfile] +# | arg: logfile - absolute path of logfile +# +# If no argument provided, a standard directory will be use. /var/log/${app} +# You can provide a path with the directory only or with the logfile. +# /parentdir/logdir/ +# /parentdir/logdir/logfile.log +# +# It's possible to use this helper several times, each config will added to same logrotate config file. +ynh_use_logrotate () { + if [ -n "$1" ]; then + if [ "$(echo ${1##*.})" == "log" ]; then # Keep only the extension to check if it's a logfile + logfile=$1 # In this case, focus logrotate on the logfile + else + logfile=$1/.log # Else, uses the directory and all logfile into it. + fi + else + logfile="/var/log/${app}/.log" # Without argument, use a defaut directory in /var/log + fi + cat > ./${app}-logrotate << EOF # Build a config file for logrotate +$logfile { + # Rotate if the logfile exceeds 100Mo + size 100M + # Keep 12 old log maximum + rotate 12 + # Compress the logs with gzip + compress + # Compress the log at the next cycle. So keep always 2 non compressed logs + delaycompress + # Copy and truncate the log to allow to continue write on it. Instead of move the log. + copytruncate + # Do not do an error if the log is missing + missingok + # Not rotate if the log is empty + notifempty + # Keep old logs in the same dir + noolddir +} +EOF + sudo mkdir -p $(dirname "$logfile") # Create the log directory, if not exist + cat ${app}-logrotate | sudo tee -a /etc/logrotate.d/$app > /dev/null # Append this config to the others for this app. If a config file already exist +} + +# Remove the app's logrotate config. +# +# usage: ynh_remove_logrotate +ynh_remove_logrotate () { + if [ -e "/etc/logrotate.d/$app" ]; then + sudo rm "/etc/logrotate.d/$app" + fi +}