Class: KuberKit::Shell::Commands::SystemCommands

Inherits:
Object
  • Object
show all
Defined in:
lib/kuber_kit/shell/commands/system_commands.rb

Instance Method Summary collapse

Instance Method Details

#find_pids_by_name(shell, name) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/system_commands.rb', line 11

def find_pids_by_name(shell, name)
  shell
    .exec!("ps auxww | grep '#{name}' | grep -v 'grep' | awk '{print $2}'")
    .split("\n")
    .reject(&:empty?)
    .map(&:chomp)
    .map(&:to_i)
rescue
  []
end

#get_child_pids(shell, pid) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/system_commands.rb', line 22

def get_child_pids(shell, pid)
  shell
    .exec!("pgrep -P #{pid}")
    .split("\n")
    .reject(&:empty?)
    .map(&:chomp)
    .map(&:to_i)
rescue
  []
end

#kill_process(shell, pid) ⇒ Object 



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# File 'lib/kuber_kit/shell/commands/system_commands.rb', line 2

def kill_process(shell, pid)
  # we need to use kill command directly sometimes, 
  # because Process.kill doesn't kill processes created by system() call
  shell.exec!("kill -9 #{pid}", merge_stderr: true)
  true
rescue
  false
end