Feature request: monit command with regex or wildcard

[ktoy]

Example of command with regex or wildcard

$ monit restart abc*
$ monit restart abc_\d+

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[Henning Bopp]

I like the idea, so I wrote a little bash function that handles this:

#!/usr/bin/env bash
function emonit() {
  local available matching action failed
  action="$1"
  shift
  available="$(sudo monit -B summary | awk 'FNR > 2 && /^ /{ print $1 }')"
  matching="$(grep -P "^$*\$" <<< "$available")"

  if [ "$matching" = "" ]; then
    echo "Cannot find matching monit services with $*" >&2
    return 1
  elif [ "$action" = "list" ]; then
    echo "$matching"
  else
    failed="false"
    while read -r service; do
      sudo monit "${action}" "${service}" || failed="true"
    done <<< "$matching"
    $failed && return 1 || return 0
  fi
}

You can source this file in your login-script (~/.bashrc or similar) with . ~/.emonit.sh if you stored it in ~/.emonit.sh. The script uses some non-sh-compatible syntax. So if you only have sh or ash at hand, some changes are needed.

Syntax:

$ emonit list 'b.*'
bin
bash
boppy

$ emonit restart 'b.*'
# Will restart the three services listed above (without providing feedback)

One important thing to notice: Mind the glob! ;)

$ emonit restart .*             # will expand before it is passed to the script, meaning that the script call will be something like
$ emonit restart . .. .bashrc   # what will surely fail. I recommend to always single-quote any input, like
$ emonit restart '.*'           # what will simply restart any service available. This also makes use of character classes easier
$ emonit restart 'abc_\d+'      # this is equal to the next line
$ emonit restart abc_\\d+

Hope that helps.

[ktoy]

great! thanks.

[Tildeslash]

Fix Issue #915: Add support for sevice name regular expressions in monit CLI status, summary, start, stop, restart, unmonitor, monitor commands. Examples: monit status myservice # exact match monit status "data.*" # pattern which will match all services whos name contain "data" substring

→ <<cset 869a3015cdb5>>