From: Steve Litt <email@example.com> To: firstname.lastname@example.org Subject: Re: S6 Queries Date: Mon, 2 Aug 2021 16:42:01 -0400 [thread overview] Message-ID: <email@example.com> (raw) In-Reply-To: <em53404023-b5de-45d0-aad2-18dd54e8a436@elzian> Laurent Bercot said on Mon, 02 Aug 2021 19:39:47 +0000 >>I thought the way to do what the OP asked is: >> >>============================= >>#!/bin/sh >>s6-svc -u myrequirement || exit 1 >>exec mydaemon -myarg1 -myarg2 >>============================= > > This is not a good idea in a s6-rc installation, because it sends >raw s6 commands, which may mess with the service state as viewed by >s6-rc. Also, it sends control commands to a service from another >service's run script, which is bad form in general: it is >unintuitive that starting the mydaemon service also causes the >myrequirement service to be started. Dependencies should be handled at >the service manager level, not at the process supervision level. Do you think this is any better? ============================= #!/bin/sh test_for_myrequirement || exit 1 exec mydaemon -myarg1 -myarg2 ============================= SteveT Steve Litt Spring 2021 featured book: Troubleshooting Techniques of the Successful Technologist http://www.troubleshooters.com/techniques
next prev parent reply other threads:[~2021-08-02 20:42 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-02 4:54 Arjun D R 2021-08-02 8:27 ` Laurent Bercot 2021-08-02 18:07 ` Steve Litt 2021-08-02 19:39 ` Laurent Bercot 2021-08-02 20:42 ` Steve Litt [this message] 2021-08-02 21:40 ` Laurent Bercot 2021-08-11 11:05 ` Arjun D R 2021-08-11 14:21 ` Laurent Bercot
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