From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 119501FF137 for ; Tue, 31 Mar 2026 10:38:33 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id BD63213EBA; Tue, 31 Mar 2026 10:38:57 +0200 (CEST) Message-ID: Date: Tue, 31 Mar 2026 10:38:22 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: superseded: [PATCH common/container/manager 0/8] implement per-mountpoint uid/gid mapping From: Filip Schauer To: pve-devel@lists.proxmox.com References: <20260223130706.90972-1-f.schauer@proxmox.com> Content-Language: en-US In-Reply-To: <20260223130706.90972-1-f.schauer@proxmox.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1774946247845 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.013 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Message-ID-Hash: 374HKJWGLUTMFG5OX6CF36FPQFUHDN42 X-Message-ID-Hash: 374HKJWGLUTMFG5OX6CF36FPQFUHDN42 X-MailFrom: f.schauer@proxmox.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: Proxmox VE development discussion List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Superseded by: https://lore.proxmox.com/pve-devel/20260330141021.151921-1-f.schauer@proxmox.com/ On 23/02/2026 14:07, Filip Schauer wrote: > Add support for configuring UID/GID mappings on individual container > mount points without affecting the global container mapping. > > A new "idmap" mount point option accepts space-separated mappings: > ``` > idmap=type:ct:host:len type:ct:host:len ... > ``` > > type: can be either 'u' or 'g' > ct: ID as seen inside the container > host: corresponding ID on the host > len: number of consecutive IDs to map > > Unmapped ranges inherit the container's ID mapping. > > Example to pass through the host UID & GID 1005: > ``` > mp0: /mnt/data,mp=/data,idmap=u:1005:1005:1 g:1005:1005:1 > ``` > > This allows, for example, passing through a directory owned by a > specific user on the host to a specific user inside the container, > without changing the ownership on the host or configuring an ID mapping > for the entire container. > > Build/Bump order: > * pve-common > * pve-container > * pve-manager > > pve-common: > > Filip Schauer (3): > tools: export O_CLOEXEC constant > syscall: add missing mount attribute constants > tools: add mount_setattr syscall > > src/PVE/Syscall.pm | 3 +++ > src/PVE/Tools.pm | 10 ++++++++++ > 2 files changed, 13 insertions(+) > > > pve-container: > > Filip Schauer (4): > namespaces: relax prototype of run_in_userns > namespaces: refactor run_in_userns > namespaces: add helper to create user namespace from idmap > implement per-mountpoint uid/gid mapping > > src/PVE/LXC.pm | 85 ++++++++++++++++++++++++++++++++++++++- > src/PVE/LXC/Config.pm | 7 ++++ > src/PVE/LXC/Namespaces.pm | 63 ++++++++++++++++++++++++----- > src/lxc-pve-prestart-hook | 14 +++++++ > 4 files changed, 157 insertions(+), 12 deletions(-) > > > pve-manager: > > Filip Schauer (1): > ui: lxc/MPEdit: add "idmap" option > > www/manager6/lxc/MPEdit.js | 203 +++++++++++++++++++++++++++++++++++++ > 1 file changed, 203 insertions(+) > > > Summary over all repositories: > 7 files changed, 373 insertions(+), 12 deletions(-) >