From nobody Sat Sep 17 19:22:20 2022 X-Original-To: virtualization@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4MVLTN320mz4c9BX; Sat, 17 Sep 2022 19:23:52 +0000 (UTC) (envelope-from warlock@phouka1.phouka.net) Received: from phouka1.phouka.net (phouka1.phouka.net [107.170.196.116]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "phouka.net", Issuer "Go Daddy Secure Certificate Authority - G2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4MVLTL6Snvz3ps6; Sat, 17 Sep 2022 19:23:50 +0000 (UTC) (envelope-from warlock@phouka1.phouka.net) Received: from phouka1.phouka.net (localhost [127.0.0.1]) by phouka1.phouka.net (8.16.1/8.16.1) with ESMTPS id 28HJMKHV024714 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Sat, 17 Sep 2022 12:22:20 -0700 (PDT) (envelope-from warlock@phouka1.phouka.net) Received: (from warlock@localhost) by phouka1.phouka.net (8.16.1/8.16.1/Submit) id 28HJMKTA024713; Sat, 17 Sep 2022 12:22:20 -0700 (PDT) (envelope-from warlock) Date: Sat, 17 Sep 2022 12:22:20 -0700 From: John Kennedy To: Guido Falsi Cc: freebsd-hackers@freebsd.org, virtualization@freebsd.org Subject: Re: Dynamic hostname in rc.conf (for bhyve VMs) Message-ID: References: List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 4MVLTL6Snvz3ps6 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of warlock@phouka1.phouka.net has no SPF policy when checking 107.170.196.116) smtp.mailfrom=warlock@phouka1.phouka.net X-Spamd-Result: default: False [-1.75 / 15.00]; AUTH_NA(1.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.995]; NEURAL_HAM_SHORT(-0.99)[-0.987]; NEURAL_HAM_LONG(-0.97)[-0.969]; FORGED_SENDER(0.30)[warlock@phouka.net,warlock@phouka1.phouka.net]; MIME_GOOD(-0.10)[text/plain]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org,virtualization@freebsd.org]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; R_SPF_NA(0.00)[no SPF record]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROMTLD(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; ASN(0.00)[asn:14061, ipnet:107.170.192.0/18, country:US]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; DMARC_NA(0.00)[phouka.net]; TO_DN_SOME(0.00)[]; FROM_NEQ_ENVFROM(0.00)[warlock@phouka.net,warlock@phouka1.phouka.net] X-ThisMailContainsUnwantedMimeParts: N On Sat, Sep 10, 2022 at 10:52:01AM +0200, Guido Falsi wrote: > Since rc.conf is just a shell script I'd like to be able to set hostname > dynamically. AFAIK, not a shell-script (although variables are set in that syntax). I wasn't trying to do exactly what you are, but one thing I did was set the MAC address as one of the bhyve options: ... -s 5,virtio-net,tap2,mac=00:01:02:03:04:05 ... (Changed the MAC address in the example, but pick a safe one for your setup) Should be able to provide your own rc.d configuration file that does something like do a switch on MAC and call the hostname script directly.