From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI,
	NICE_REPLY_A autolearn=ham autolearn_force=no version=3.4.4
Received: (qmail 3173 invoked from network); 17 Feb 2021 19:35:08 -0000
Received: from alyss.skarnet.org (95.142.172.232)
  by inbox.vuxu.org with ESMTPUTF8; 17 Feb 2021 19:35:08 -0000
Received: (qmail 9201 invoked by uid 89); 17 Feb 2021 19:35:30 -0000
Mailing-List: contact supervision-help@list.skarnet.org; run by ezmlm
Sender: <supervision@list.skarnet.org>
Precedence: bulk
List-Post: <mailto:supervision@list.skarnet.org>
List-Help: <mailto:supervision-help@list.skarnet.org>
List-Unsubscribe: <mailto:supervision-unsubscribe@list.skarnet.org>
List-Subscribe: <mailto:supervision-subscribe@list.skarnet.org>
List-Id: <supervision.list.skarnet.org>
Received: (qmail 9194 invoked from network); 17 Feb 2021 19:35:30 -0000
X-Injected-Via-Gmane: http://gmane.org/
To: supervision@list.skarnet.org
From: Ben Franksen <ben.franksen@online.de>
Subject: Re: Path monitoring support in s6-services
Date: Wed, 17 Feb 2021 20:29:09 +0100
Message-ID: <s0jqq5$nm3$1@ciao.gmane.io>
References: <CAH9hU4LR7Jp=vi5E4jVYvJFDzGmJKRm6ak+1H9UZLP=mNwTNQg@mail.gmail.com>
 <YCzhY08cK0QqP/7v@CasperVector>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.10.0
In-Reply-To: <YCzhY08cK0QqP/7v@CasperVector>
Content-Language: en-US

Am 17.02.21 um 10:26 schrieb Casper Ti. Vector:
> On Wed, Feb 17, 2021 at 01:08:44PM +0530, billa chaitanya wrote:
>> I am trying to start a service when a file/path is
>> modified/touched/created.Do we have any mechanism in s6 that supports
>> enabling a service up on monitoring a path?
> 
> inotifyd (or something similar) + s6-svc (or s6-rc)?

You can also write your own specialised daemon with a simple shell
script a la

inotifywait -q -m ... | while true; do
  # get the next event:
  event=$(head -1)
  ...
done

I am using this method in a production system.

Cheers
Ben