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Fri, 6 Jun 2025 06:02:42 +0000 From: "'cedric.hombourger@siemens.com' via isar-users" To: "isar-users@googlegroups.com" , "Kiszka, Jan" CC: "MOESSBAUER, Felix" Subject: Re: [PATCH 1/4] rootfs: introduce wrapper to run commands against a rootfs Thread-Topic: [PATCH 1/4] rootfs: introduce wrapper to run commands against a rootfs Thread-Index: AQHbyLVN8tBWKwGWek2DXiatjXZF2rP0skaAgAENhwA= Date: Fri, 6 Jun 2025 06:02:42 +0000 Message-ID: <9d83b61d0b9e3f7434487becd4dbe12aee88e12a.camel@siemens.com> References: <20250515150727.1764989-2-cedric.hombourger@siemens.com> <20250519115750.3195300-1-cedric.hombourger@siemens.com> <20250519115750.3195300-2-cedric.hombourger@siemens.com> <8ddc4d94-cf29-4f7a-8f90-12901ec4f25d@siemens.com> In-Reply-To: <8ddc4d94-cf29-4f7a-8f90-12901ec4f25d@siemens.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Evolution 3.44.4-0ubuntu2+intune x-ms-publictraffictype: Email x-ms-traffictypediagnostic: AS8PR10MB7875:EE_|AM7PR10MB3126:EE_ x-ms-office365-filtering-correlation-id: 3bfad0fa-9d76-4c39-6d59-08dda4bfc007 x-ms-exchange-atpmessageproperties: SA x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0;ARA:13230040|376014|366016|1800799024|38070700018; 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charset="UTF-8" Content-ID: <7926431744F0B346821FFD6F761180EB@EURPRD10.PROD.OUTLOOK.COM> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AS8PR10MB7875.EURPRD10.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: 3bfad0fa-9d76-4c39-6d59-08dda4bfc007 X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Jun 2025 06:02:42.3507 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: KuR2ga6vo0+P+si/9aaR6UJw/TFv4qhEQWGpHjE04uTFCDV7j4yJk3H52cJw6zzR+UslBLmbDCLuKSK/OCKCU9MZcSOCo9z3Uhe1khpr3JE= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR10MB3126 X-Original-Sender: cedric.hombourger@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=selector2 header.b=jYBIHj7k; arc=pass (i=1 spf=pass spfdomain=siemens.com dkim=pass dkdomain=siemens.com dmarc=pass fromdomain=siemens.com); spf=pass (google.com: domain of cedric.hombourger@siemens.com designates 2a01:111:f403:c20a::7 as permitted sender) smtp.mailfrom=cedric.hombourger@siemens.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=siemens.com X-Original-From: "cedric.hombourger@siemens.com" Reply-To: "cedric.hombourger@siemens.com" Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Status: No, score=-4.9 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,RCVD_IN_RP_CERTIFIED, RCVD_IN_RP_RNBL,RCVD_IN_RP_SAFE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-TUID: Rx3Ne/X5U/1F On Thu, 2025-06-05 at 15:57 +0200, Jan Kiszka wrote: > On 19.05.25 13:57, 'Cedric Hombourger' via isar-users wrote: > > "sudo chroot" is used in several places to run commands inside > > rootfs > > directories constructed by Isar. There are cases where a command > > could > > be used without elevated privileges as long as special folders such > > as > > /isar-apt are mounted (they are often referenced as /isar-apt in > > configuration files found in the target rootfs). For such cases, > > bubblewrap may be used to create a non-privileged namespace (either > > in a bare/native environment or within a docker/podman container) > > where the command will be executed as if chroot had been used. The > > rootfs may also be the host root file-system: this should however > > be used with care to avoid host contamination problems (note: Isar > > already relies on a number of host tools). > >=20 > > Signed-off-by: Cedric Hombourger > > --- > > =C2=A0RECIPE-API-CHANGELOG.md=C2=A0=C2=A0=C2=A0=C2=A0 |=C2=A0 6 ++++ > > =C2=A0doc/user_manual.md=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 |=C2=A0 1 + > > =C2=A0meta/classes/rootfs.bbclass | 66 > > +++++++++++++++++++++++++++++++++++++ > > =C2=A03 files changed, 73 insertions(+) > >=20 > > diff --git a/RECIPE-API-CHANGELOG.md b/RECIPE-API-CHANGELOG.md > > index a4cf1338..725737b2 100644 > > --- a/RECIPE-API-CHANGELOG.md > > +++ b/RECIPE-API-CHANGELOG.md > > @@ -722,3 +722,9 @@ Optional fields of the isar-apt repo can be > > controlled by adding to the > > =C2=A0 > > =C2=A0Changes in next > > =C2=A0--------------- > > + > > +### Require bubblewrap to run non-privileged commands with bind- > > mounts > > + > > +Isar occasionally needs to run commands within root file-systems > > that it > > +builds and with several bind-mounts (e.g. /isar-apt). bubblewrap > > may be > > +used in Isar classes instead of `sudo chroot`. > > diff --git a/doc/user_manual.md b/doc/user_manual.md > > index 0dc317c3..3cf1a9aa 100644 > > --- a/doc/user_manual.md > > +++ b/doc/user_manual.md > > @@ -75,6 +75,7 @@ Install the following packages: > > =C2=A0``` > > =C2=A0apt install \ > > =C2=A0=C2=A0 binfmt-support \ > > +=C2=A0 bubblewrap \ >=20 > Does the bubblewrap (and kernel features) of bullseye suffice here, > or > is that a bookworm+ thing? How about buster (still listed as host)? bubblewrap has been around for ages: these older distros did support flatpak. buster included. https://packages.debian.org/buster/bubblewrap =20 >=20 > Jan >=20 --=20 Cedric Hombourger Siemens AG www.siemens.com --=20 You received this message because you are subscribed to the Google Groups "= isar-users" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to isar-users+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/isar-users/= 9d83b61d0b9e3f7434487becd4dbe12aee88e12a.camel%40siemens.com.