From mboxrd@z Thu Jan 1 00:00:00 1970 X-GM-THRID: 7004754512489480192 X-Received: by 2002:a05:6402:1d92:: with SMTP id dk18mr12872091edb.226.1630923196392; Mon, 06 Sep 2021 03:13:16 -0700 (PDT) X-BeenThere: isar-users@googlegroups.com Received: by 2002:a17:906:c258:: with SMTP id bl24ls2866043ejb.6.gmail; Mon, 06 Sep 2021 03:13:15 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx//7rq0+f+gYUXQXDDJzr2VH4OSJX4sNjrEeO6K/Z1EyonEjcb3eqyJjy0O3ih6PDYa9D+ X-Received: by 2002:a17:906:c1da:: with SMTP id bw26mr13020171ejb.253.1630923195295; Mon, 06 Sep 2021 03:13:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630923195; cv=none; d=google.com; s=arc-20160816; b=TfvafErwQpw7TpefaTgliN1+aoMa0E1XSAE2dgbINoUGmWuOVNFddoTUkwW43epGR7 Tyvn+2YKBYChfo/OEWw3wy5d4YlTJZe8603o7JQgLHQLrYbHSHTZSPJnSGGmyIAAgCtg HbLnS4QXGW2I1p0SRr51Lb8LVwQDJam9CmPhiN3IcysKPlqz06a7QM3XDt+yyGWgQaEi YTz0NezAEjHyCpY6kvdzTDO6Mm3/+TP/BQtX8RONQlLrPp4hKFyaspDSJJXO7SGU7oTl APk3xKHScaqR1sMpdctuV+im1kRjtHvwCgfOMFEM7CjLvA2qKeMe2kgul4sTuOKgdq1A z6mQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject; bh=SJggVlXnwRaS9roB7/UTXUj3fm1eMsJQmp7pPyZw7z4=; b=JG4Se31HnlUirRVkXadktLHs+YHn4xgrVjMFYhtkvKyXcp2adB+TZXCDmJkxqRCQ2T i6hlgUf+iPQBahhw5EePlZ03niwtoMXG22rmEQXsbr7FrDfnGSZKG5tt9lgK2qqwm7IR mJYNMX4GiN3jqOV2/EDmKPJWa9zvh8UJ61Slmp13qCWWazusK66RD82xERlmafvr+QPL 9vBVM2cJSH+H5ZGKaaHeGfuzxmETZ+8hMkeGUclaL8Xt7GKsU3SoUkSYvDhBCRCc1kAk pSss7rAx2Ytpq5Es0q5q6gmpxBe6GPF9hNaG5N1es1HZ4qdQIJ49uyB/5h+eIVM0CeVo Hxtg== ARC-Authentication-Results: i=1; gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.28 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Return-Path: Received: from goliath.siemens.de (goliath.siemens.de. [192.35.17.28]) by gmr-mx.google.com with ESMTPS id s18si434286ejo.1.2021.09.06.03.13.15 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Sep 2021 03:13:15 -0700 (PDT) Received-SPF: pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.28 as permitted sender) client-ip=192.35.17.28; Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of jan.kiszka@siemens.com designates 192.35.17.28 as permitted sender) smtp.mailfrom=jan.kiszka@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com Received: from mail2.sbs.de (mail2.sbs.de [192.129.41.66]) by goliath.siemens.de (8.15.2/8.15.2) with ESMTPS id 186ADE3k007502 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Sep 2021 12:13:14 +0200 Received: from [167.87.75.244] ([167.87.75.244]) by mail2.sbs.de (8.15.2/8.15.2) with ESMTP id 186ADEoJ007187; Mon, 6 Sep 2021 12:13:14 +0200 Subject: Re: [isar] rootfs: Add new ROOTFS_FEATURE 'slimfy' to minimize the footprint To: venkata.pyla@toshiba-tsip.com, isar-users@googlegroups.com Cc: henning.schild@siemens.com References: <20210906094510.9589-1-venkata.pyla@toshiba-tsip.com> From: Jan Kiszka Message-ID: Date: Mon, 6 Sep 2021 12:13:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210906094510.9589-1-venkata.pyla@toshiba-tsip.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TUID: EoJDg1b/xFPP On 06.09.21 11:45, venkata.pyla@toshiba-tsip.com wrote: > From: venkata pyla > > This Adds new ROOTFS_FEATURE 'slimify' that deletes unnecessary files > in the rootfs and contributes to minimal footprint in the rootfs and > also avoids the reproducible failures due to non-deterministic data in > the log files and temporary files. > > It deletes the following files > - /var/log/* > - /tmp/* > > To enable this feature > ROOTFS_FEATURE += slimify > > Signed-off-by: venkata pyla > --- > meta/classes/rootfs.bbclass | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/meta/classes/rootfs.bbclass b/meta/classes/rootfs.bbclass > index f9151c5..d01a9d1 100644 > --- a/meta/classes/rootfs.bbclass > +++ b/meta/classes/rootfs.bbclass > @@ -12,6 +12,7 @@ ROOTFS_PACKAGES ?= "" > # 'clean-package-cache' - delete package cache from rootfs > # 'generate-manifest' - generate a package manifest of the rootfs into ${ROOTFS_MANIFEST_DEPLOY_DIR} > # 'export-dpkg-status' - exports /var/lib/dpkg/status file to ${ROOTFS_DPKGSTATUS_DEPLOY_DIR} > +# 'slimify' - delete unnecessary files in rootfs like /var/log/*, /tmp/* /tmp should be emptied unconditionally. I'm also wondering if we should rather permit to preserving logs for debugging purposes and make deletion the default as well. Jan > ROOTFS_FEATURES ?= "" > > ROOTFS_APT_ARGS="install --yes -o Debug::pkgProblemResolver=yes" > @@ -229,6 +230,12 @@ rootfs_export_dpkg_status() { > '${ROOTFS_DPKGSTATUS_DEPLOY_DIR}'/'${PF}'.dpkg_status > } > > +ROOTFS_POSTPROCESS_COMMAND += "${@bb.utils.contains('ROOTFS_FEATURES', 'slimify', 'rootfs_slimify', '', d)}" > +rootfs_slimify() { > + sudo rm -rf "${ROOTFSDIR}/var/log/"* > + sudo rm -rf "${ROOTFSDIR}/tmp/"* > +} > + > do_rootfs_postprocess[vardeps] = "${ROOTFS_POSTPROCESS_COMMAND}" > python do_rootfs_postprocess() { > # Take care that its correctly mounted: > -- Siemens AG, T RDA IOT Corporate Competence Center Embedded Linux