As 👼 of Death(pun intended), the following small golang program watches over a list of processes, create and kill them gracefully when their time is up! The config is listed in a small sqlite database.
The sqllite config database has only one table (jobs) and the following simple structure:
jobs>
- command : the command to be executed without the arguments
- args : all the arguments of the command (e.g.
--id=1 --time=2) - freq : how many seconds to wait before restarting the process
- acceptable_runtime : how many seconds is acceptable for the process to be working, after this number of seconds azrael will kill the child process and restart it
- status : either running or stopped
- last_run: date and time of the last successful run
To compile simply install go and run the following command inside the directory
go install
The binary will be located in default $GOPATH/bin
The program will read the jobs table from the sqlite config, and for every row creates a subprocess which will the handle the creation and termination of the commands.
To configure and access the config database run the following:
sqlite3
.open config
select * from jobs;
.quit
As an example of long running process to play around with, use the following rand program : Rand