[From nobody Mon May 25 22:57:05 2026 Received: (at submit) by bugs.debian.org; 10 Mar 2026 10:21:26 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-15.2 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,DKIM_SIGNED,DKIM_VALID,FOURLA,FROMDEVELOPER, HAS_PACKAGE,MONEY,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE,STOCKLIKE autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 17; hammy, 150; neutral, 181; spammy, 0. spammytokens: hammytokens:0.000-+--HTo:N*Debian, 0.000-+--H*Ad:N*Bug, 0.000-+--H*Ad:N*Tracking, 0.000-+--sk:golang, 0.000-+--sk:golang- Return-path: <jmtd@debian.org> Received: from redmars.org ([178.79.130.180]:41436 helo=chew.redmars.org) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <jmtd@debian.org>) id 1vzuDN-003SaP-2Y for submit@bugs.debian.org; Tue, 10 Mar 2026 10:21:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dow.land; s=20210720; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID: Subject:To:From:Date:Sender:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=YrMz3stvcKS7O/BWr3f7idcxQNGwOICHLOIFYsMAi20=; b=vjBzjsncbhflRaGIHeKnbtyzlK 9gXhGafCNeC4bIo5PCdGqBNxdcYAzzdbZZcDfmCewikuPYMpNfKmPDilWDjdCqdevcSVq3HmLiMfZ ueQXq5RS8dRmNUdu9Nl8joKkMzUvoL5UYFmIZemNOokx3QcTPLF599+01X+oHzTArBXc=; Received: from 234.182.199.146.dyn.plus.net ([146.199.182.234] helo=coil) by chew.redmars.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from <jmtd@debian.org>) id 1vzuDL-0000Sk-EF; Tue, 10 Mar 2026 10:21:23 +0000 Date: Tue, 10 Mar 2026 10:21:21 +0000 From: Jonathan Dowland <jmtd@debian.org> To: Debian Bug Tracking System <submit@bugs.debian.org> Subject: podman: build --squash is not squashing the built images Message-ID: <2sbqebhpsdgwwznslm7qzxt4ejxs4go4pv6btta5n72yrz5lte@u7qnrksqj74r> X-Reportbug-Version: 13.2.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit Delivered-To: submit@bugs.debian.org Package: podman Version: 5.7.0+ds2-3 Severity: normal podman has two squashing build parameters: --squash Squash all of the image's new layers into a single new layer; any preexisting layers are not squashed. --squash-all Squash all of the new image's layers (including those inherited from a base image) into a single new layer. The '--squash' parameter doesn't work. Note from the below session excerpt, the image checksum for '--squash' and '<nothing>' are identical, and contain 23 layers. Expected behaviour would be base image + 1. In this case base image has 22. (I can provide this container source if requested, but it's not relevant) $ podman build -t nosquash ./ $ podman build --squash -t squash ./ $ podman build --squash-all -t squashall ./ $ skopeo inspect containers-storage:localhost/nosquash | jq '.Layers | length' 23 $ skopeo inspect containers-storage:localhost/squash | jq '.Layers | length' 23 $ skopeo inspect containers-storage:localhost/squashall | jq '.Layers | length' 1 $ podman images | head REPOSITORY TAG IMAGE ID CREATED SIZE localhost/squashall latest 539639a5c074 5 minutes ago 1.07 GB localhost/squash latest 8b6e819c2b11 6 minutes ago 1.08 GB localhost/nosquash latest 8b6e819c2b11 6 minutes ago 1.08 GB -- System Information: Debian Release: 13.3 APT prefers stable APT policy: (990, 'stable'), (500, 'stable-security'), (500, 'oldoldstable'), (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.16.9+deb14-amd64 (SMP w/24 CPU threads; PREEMPT) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages podman depends on: ii conmon 2.1.12-4 ii golang-github-containers-common 0.66.0+ds2-3 ii init-system-helpers 1.69~deb13u1 ii libc6 2.41-12+deb13u1 ii libgpgme45 2.0.1-2 ii libseccomp2 2.6.0-2 ii libsqlite3-0 3.46.1-7 ii libsubid5 1:4.17.4-2 ii netavark 1.14.0-2 ii runc 1.1.15+ds1-2+b4 Versions of packages podman recommends: ii buildah 1.42.1+ds1-2 ii ca-certificates 20250419 ii containers-storage 1.57.2+ds1-1+b2 ii criu 4.1.1-1 ii dbus-user-session 1.16.2-2 ii libcriu2 4.1.1-1 ii passt 0.0~git20250503.587980c-2 ii slirp4netns 1.2.1-1.1 ii tini 0.19.0-3+b5 ii uidmap 1:4.17.4-2 Versions of packages podman suggests: ii containernetworking-plugins 1.1.1+ds1-3+b17 ii docker-compose 2.26.1-4 ii iptables 1.8.11-2 -- no debconf information -- 👱🏻 Jonathan Dowland ✎ jon@dow.land 🔗 jmtd.net ]