Unable to create or redirect output to a file in rootnroll Telegraf playground

[TRSridhar]

1. Start a telegraf playground: https://rootnroll.com/d/telegraf/

2. Edit /etc/telegraf/telegraf.conf to modify the config as follows:

Logging configuration:

Run telegraf with debug log messages.

debug = true

Run telegraf in quiet mode (error log messages only).

quiet = false

Specify the log file name. The empty string means to log to stderr.

logfile = "/etc/log.log"

3. Run telegraf --test

2019-10-19T09:50:11Z I! Starting Telegraf 1.10.2
2019-10-19T09:50:11Z I! Using config file: /etc/telegraf/telegraf.conf
2019-10-19T09:50:11Z E! Unable to open /etc/log.log (open /etc/log.log: permission denied), using stderr

4. Unable to even execute
   touch /etc/log.log

Need to do
sudo touch /etc/log.log to create the file

5. Even after file is created, the log file does not get appended. Probably need a sudo append/write to make it work