`podman build` fails for armv7 on armv8 host, only when multilple `FROM` are used

[ggardet]

Issue Description

podman build fails for armv7 on armv8 host, only when multilple FROM are used.
The build environnement is: armv7 userspace on aarch64 kernel.

This fails with podman 5.5.0 but used to work with podman 5.4.2.
And this still works when a single FROM is used.

Steps to reproduce the issue

Steps to reproduce the issue

1. Setup armv7 build environnement with 32bit userspace on aarch64 kernel (lscpu returns armv8)
2. Try to build a DockerFile with multiple FROM
3. See the failure

Example of failing DockerFile:

FROM scratch AS target
FROM opensuse/tumbleweed:latest AS builder
COPY --from=target / /target

RUN set -euo pipefail; \
    zypper -n --installroot /target --gpg-auto-import-keys install --no-recommends bash ca-certificates-mozilla-prebuilt coreutils openSUSE-release openSUSE-release-appliance-docker

RUN set -euo pipefail; zypper -n install jdupes \
    && jdupes -1 -L -r /target/usr/
RUN set -euo pipefail; zypper -n --installroot /target clean -a; \
    rm -rf {/target,}/var/log/{alternatives.log,lastlog,tallylog,zypper.log,zypp/history,YaST2}
FROM scratch
COPY --from=builder /target /
# Define labels according to https://en.opensuse.org/Building_derived_containers
# labelprefix=org.opensuse.bci.micro
LABEL org.opencontainers.image.title="openSUSE Tumbleweed BCI Micro"
LABEL org.opencontainers.image.description="A micro environment for containers based on the openSUSE Tumbleweed Base Container Image."
LABEL org.opencontainers.image.version="%OS_VERSION_ID_SP%-%RELEASE%"
LABEL org.opencontainers.image.url="https://www.opensuse.org"
LABEL org.opencontainers.image.created="%BUILDTIME%"
LABEL org.opencontainers.image.vendor="openSUSE Project"
LABEL org.opencontainers.image.source="%SOURCEURL%"
LABEL org.opencontainers.image.ref.name="%OS_VERSION_ID_SP%-%RELEASE%"
LABEL org.opensuse.reference="registry.opensuse.org/opensuse/bci/bci-micro:%OS_VERSION_ID_SP%-%RELEASE%"
LABEL org.openbuildservice.disturl="%DISTURL%"
LABEL org.opensuse.lifecycle-url="https://en.opensuse.org/Lifetime#openSUSE_BCI"
LABEL org.opensuse.release-stage="released"
# endlabelprefix
LABEL io.artifacthub.package.readme-url="https://raw.githubusercontent.com/SUSE/BCI-dockerfile-generator/Tumbleweed/micro-image/README.md"
LABEL io.artifacthub.package.logo-url="https://opensource.suse.com/bci/SLE_BCI_logomark_green.svg"
CMD ["/bin/sh"]

Describe the results you received

Error is: DEBU[0000] image platform (linux/arm) does not match the expected platform (linux/arm/v8)

Full log:

INFO[0000] podman filtering at log level debug
DEBU[0000] Called build.PersistentPreRunE(podman --debug build .)
DEBU[0000] Using conmon: "/usr/bin/conmon"
INFO[0000] Using sqlite as database backend
DEBU[0000] Using graph driver overlay
DEBU[0000] Using graph root /var/lib/containers/storage
DEBU[0000] Using run root /run/containers/storage
DEBU[0000] Using static dir /var/lib/containers/storage/libpod
DEBU[0000] Using tmp dir /run/libpod
DEBU[0000] Using volume path /var/lib/containers/storage/volumes
DEBU[0000] Using transient store: false
DEBU[0000] [graphdriver] trying provided driver "overlay"
DEBU[0000] Cached value indicated that overlay is supported
DEBU[0000] Cached value indicated that overlay is supported
DEBU[0000] Cached value indicated that metacopy is not being used
DEBU[0000] Cached value indicated that native-diff is usable
DEBU[0000] backingFs=extfs, projectQuotaSupported=false, useNativeDiff=true, usingMetacopy=false
DEBU[0000] Initializing event backend file
DEBU[0000] Configured OCI runtime runsc initialization failed: no valid executable found for OCI runtime runsc: invalid argument
DEBU[0000] Configured OCI runtime krun initialization failed: no valid executable found for OCI runtime krun: invalid argument
DEBU[0000] Configured OCI runtime ocijail initialization failed: no valid executable found for OCI runtime ocijail: invalid argument
DEBU[0000] Configured OCI runtime crun initialization failed: no valid executable found for OCI runtime crun: invalid argument
DEBU[0000] Configured OCI runtime runj initialization failed: no valid executable found for OCI runtime runj: invalid argument
DEBU[0000] Configured OCI runtime kata initialization failed: no valid executable found for OCI runtime kata: invalid argument
DEBU[0000] Configured OCI runtime youki initialization failed: no valid executable found for OCI runtime youki: invalid argument
DEBU[0000] Configured OCI runtime crun-vm initialization failed: no valid executable found for OCI runtime crun-vm: invalid argument
DEBU[0000] Configured OCI runtime crun-wasm initialization failed: no valid executable found for OCI runtime crun-wasm: invalid argument
DEBU[0000] Using OCI runtime "/usr/bin/runc"
INFO[0000] Setting parallel job count to 97
DEBU[0000] Normalized platform linux/arm to {arm linux  [] }
DEBU[0000] base for stage 1: "opensuse/tumbleweed:latest" resolves to "opensuse/tumbleweed:latest"
DEBU[0000] rootfs needed for COPY in stage 1: "target"
DEBU[0000] stage 1 name: "target" resolves to "target"
DEBU[0000] rootfs needed for COPY in stage 2: "builder"
DEBU[0000] stage 2 name: "builder" resolves to "builder"
DEBU[0000] FROM "scratch AS target"
[1/3] STEP 1/1: FROM scratch AS target
DEBU[0000] Cached value indicated that idmapped mounts for overlay are supported
DEBU[0000] Normalized platform linux/arm/v7 to {arm linux  [] v7}
DEBU[0000] Cached value indicated that volatile is being used
DEBU[0000] overlay: mount_data=lowerdir=/var/lib/containers/storage/overlay/3b5eaa08aeb2736c581c68f5b08d41b6abd77d875b0cf129d161fcac3410ae7b/empty,upperdir=/var/lib/containers/storage/overlay/3b5eaa08aeb2736c581c68f5b08d41b6abd77d875b0cf129d161fcac3410ae7b/diff,workdir=/var/lib/containers/storage/overlay/3b5eaa08aeb2736c581c68f5b08d41b6abd77d875b0cf129d161fcac3410ae7b/work,nodev,volatile
DEBU[0000] Container ID: a6da38ef89214549abbec02b8cd3cbb2ecb45677744ce28a538b0f864e3554ac
DEBU[0000] COMMIT
DEBU[0000] parsed reference into "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]docker.io/library/4e61f599696af5b983839951e3ce9913ce6eb9be5159398aa9e5f5d4717557cb-tmp:latest"
DEBU[0000] committing image with reference "containers-storage:[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]docker.io/library/4e61f599696af5b983839951e3ce9913ce6eb9be5159398aa9e5f5d4717557cb-tmp:latest" is allowed by policy
DEBU[0000] layer list: ["3b5eaa08aeb2736c581c68f5b08d41b6abd77d875b0cf129d161fcac3410ae7b"]
DEBU[0000] using "/var/tmp/buildah1238037509" to hold temporary data
DEBU[0000] OCIv1 config = {"created":"2025-05-27T14:46:22.862969475Z","architecture":"arm","os":"linux","variant":"v7","config":{"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"WorkingDir":"/","Labels":{"io.buildah.version":"1.40.0"}},"rootfs":{"type":"layers","diff_ids":[]},"history":[{"created":"2025-05-27T14:46:22.8632204Z","created_by":"/bin/sh","empty_layer":true}]}
DEBU[0000] OCIv1 manifest = {"schemaVersion":2,"mediaType":"application/vnd.oci.image.manifest.v1+json","config":{"mediaType":"application/vnd.oci.image.config.v1+json","digest":"sha256:134e4066e700d20604c340b4932a75c71dfdb882a460dd51d37bf5b95eb2eb6e","size":376},"layers":[],"annotations":{"org.opencontainers.image.base.digest":"","org.opencontainers.image.base.name":""}}
DEBU[0000] Docker v2s2 config = {"created":"2025-05-27T14:46:22.862969475Z","container":"a6da38ef89214549abbec02b8cd3cbb2ecb45677744ce28a538b0f864e3554ac","container_config":{"Hostname":"","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":null,"Image":"","Volumes":{},"WorkingDir":"/","Entrypoint":[],"OnBuild":[],"Labels":{"io.buildah.version":"1.40.0"}},"config":{"Hostname":"","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":null,"Image":"","Volumes":{},"WorkingDir":"/","Entrypoint":[],"OnBuild":[],"Labels":{"io.buildah.version":"1.40.0"}},"architecture":"arm","variant":"v7","os":"linux","rootfs":{"type":"layers"},"history":[{"created":"2025-05-27T14:46:22.8632204Z","created_by":"/bin/sh","empty_layer":true}]}
DEBU[0000] Docker v2s2 manifest = {"schemaVersion":2,"mediaType":"application/vnd.docker.distribution.manifest.v2+json","config":{"mediaType":"application/vnd.docker.container.image.v1+json","size":1024,"digest":"sha256:369da282b131b4ab33c5294a67bc819aaa079111e8da7901d6f5bd700873c8ca"},"layers":[]}
DEBU[0000] Using SQLite blob info cache at /var/lib/containers/cache/blob-info-cache-v1.sqlite
DEBU[0000] IsRunningImageAllowed for image containers-storage:
DEBU[0000]  Using transport "containers-storage" policy section ""
DEBU[0000]  Requirement 0: allowed
DEBU[0000] Overall: allowed
DEBU[0000] start reading config
DEBU[0000] finished reading config
DEBU[0000] Manifest has MIME type application/vnd.oci.image.manifest.v1+json, ordered candidate list [application/vnd.oci.image.manifest.v1+json, application/vnd.docker.distribution.manifest.v2+json, application/vnd.docker.distribution.manifest.v1+prettyjws, application/vnd.docker.distribution.manifest.v1+json]
DEBU[0000] ... will first try using the original manifest unmodified
DEBU[0000] No compression detected
DEBU[0000] Compression change for blob sha256:134e4066e700d20604c340b4932a75c71dfdb882a460dd51d37bf5b95eb2eb6e ("application/vnd.oci.image.config.v1+json") not supported
DEBU[0000] Using original blob without modification
DEBU[0000] setting image creation date to 2025-05-27 14:46:22.862969475 +0000 UTC
DEBU[0000] created new image ID "134e4066e700d20604c340b4932a75c71dfdb882a460dd51d37bf5b95eb2eb6e" with metadata "{}"
DEBU[0000] added name "docker.io/library/4e61f599696af5b983839951e3ce9913ce6eb9be5159398aa9e5f5d4717557cb-tmp:latest" to image "134e4066e700d20604c340b4932a75c71dfdb882a460dd51d37bf5b95eb2eb6e"
DEBU[0000] removing 4e61f599696af5b983839951e3ce9913ce6eb9be5159398aa9e5f5d4717557cb-tmp from assigned names to image "134e4066e700d20604c340b4932a75c71dfdb882a460dd51d37bf5b95eb2eb6e"
--> 134e4066e700
DEBU[0000] FROM "opensuse/tumbleweed:latest AS builder"
[2/3] STEP 1/8: FROM opensuse/tumbleweed:latest AS builder
DEBU[0000] Pulling image opensuse/tumbleweed:latest (policy: missing)
DEBU[0000] Looking up image "opensuse/tumbleweed:latest" in local containers storage
DEBU[0000] Normalized platform linux/arm/v8 to {arm linux  [] v8}
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf"
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf.d/000-shortnames.conf"
DEBU[0000] Trying "registry.opensuse.org/opensuse/tumbleweed:latest" ...
DEBU[0000] reference "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]registry.opensuse.org/opensuse/tumbleweed:latest" does not resolve to an image ID
DEBU[0000] Trying "localhost/opensuse/tumbleweed:latest" ...
DEBU[0000] parsed reference into "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]@ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb"
DEBU[0000] Found image "opensuse/tumbleweed:latest" as "localhost/opensuse/tumbleweed:latest" in local containers storage
DEBU[0000] Found image "opensuse/tumbleweed:latest" as "localhost/opensuse/tumbleweed:latest" in local containers storage ([overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]@ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb)
DEBU[0000] exporting opaque data as blob "sha256:ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb"
DEBU[0000] image platform (linux/arm) does not match the expected platform (linux/arm/v8)
DEBU[0000] Trying "registry.opensuse.org/opensuse/tumbleweed:latest" ...
DEBU[0000] reference "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]registry.opensuse.org/opensuse/tumbleweed:latest" does not resolve to an image ID
DEBU[0000] Trying "registry.suse.com/opensuse/tumbleweed:latest" ...
DEBU[0000] reference "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]registry.suse.com/opensuse/tumbleweed:latest" does not resolve to an image ID
DEBU[0000] Trying "docker.io/opensuse/tumbleweed:latest" ...
DEBU[0000] reference "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]docker.io/opensuse/tumbleweed:latest" does not resolve to an image ID
DEBU[0000] Trying "docker.io/opensuse/tumbleweed:latest" ...
DEBU[0000] reference "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]docker.io/opensuse/tumbleweed:latest" does not resolve to an image ID
DEBU[0000] Trying "opensuse/tumbleweed:latest" ...
DEBU[0000] Trying "localhost/opensuse/tumbleweed:latest" ...
DEBU[0000] parsed reference into "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]@ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb"
DEBU[0000] Found image "opensuse/tumbleweed:latest" as "localhost/opensuse/tumbleweed:latest" in local containers storage
DEBU[0000] Found image "opensuse/tumbleweed:latest" as "localhost/opensuse/tumbleweed:latest" in local containers storage ([overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]@ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb)
DEBU[0000] exporting opaque data as blob "sha256:ac61c61e74cd3d3d201b2deec48eab8e52c1e778732e7ae64deae3e5f1e20efb"
DEBU[0000] image platform (linux/arm) does not match the expected platform (linux/arm/v8)
DEBU[0000] Enforcing pull policy to "newer" to pull custom platform (arch: "arm", os: "linux", variant: "v8") - local image may mistakenly specify wrong platform
DEBU[0000] Normalized platform linux/arm/v8 to {arm linux  [] v8}
DEBU[0000] Attempting to pull candidate registry.opensuse.org/opensuse/tumbleweed:latest for opensuse/tumbleweed:latest
DEBU[0000] parsed reference into "[overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]registry.opensuse.org/opensuse/tumbleweed:latest"
DEBU[0000] Resolved "opensuse/tumbleweed" as an alias (/etc/containers/registries.conf.d/000-shortnames.conf)
Resolved "opensuse/tumbleweed" as an alias (/etc/containers/registries.conf.d/000-shortnames.conf)
Trying to pull registry.opensuse.org/opensuse/tumbleweed:latest...
DEBU[0000] Copying source image //registry.opensuse.org/opensuse/tumbleweed:latest to destination image [overlay@/var/lib/containers/storage+/run/containers/storage:overlay.mountopt=nodev]registry.opensuse.org/opensuse/tumbleweed:latest
DEBU[0000] Using registries.d directory /etc/containers/registries.d
DEBU[0000] Trying to access "registry.opensuse.org/opensuse/tumbleweed:latest"
DEBU[0000] No credentials matching registry.opensuse.org/opensuse/tumbleweed found in /run/containers/0/auth.json
DEBU[0000] No credentials matching registry.opensuse.org/opensuse/tumbleweed found in /root/.config/containers/auth.json
DEBU[0000] No credentials matching registry.opensuse.org/opensuse/tumbleweed found in /root/.docker/config.json
DEBU[0000] No credentials matching registry.opensuse.org/opensuse/tumbleweed found in /root/.dockercfg
DEBU[0000] No credentials for registry.opensuse.org/opensuse/tumbleweed found
DEBU[0000]  Lookaside configuration: using "default-docker" configuration
DEBU[0000]  No signature storage configuration found for registry.opensuse.org/opensuse/tumbleweed:latest, using built-in default file:///var/lib/containers/sigstore
DEBU[0000] Looking for TLS certificates and private keys in /etc/docker/certs.d/registry.opensuse.org
DEBU[0000]  Sigstore attachments: using "default-docker" configuration
DEBU[0000] GET https://registry.opensuse.org/v2/
DEBU[0000] Ping https://registry.opensuse.org/v2/ err Get "https://registry.opensuse.org/v2/": dial tcp: lookup registry.opensuse.org on [::1]:53: read udp [::1]:36300->[::1]:53: read: connection refused (&url.Error{Op:"Get", URL:"https://registry.opensuse.org/v2/", Err:(*net.OpError)(0x477cc60)})
DEBU[0000] Accessing "registry.opensuse.org/opensuse/tumbleweed:latest" failed: pinging container registry registry.opensuse.org: Get "https://registry.opensuse.org/v2/": dial tcp: lookup registry.opensuse.org on [::1]:53: read udp [::1]:36300->[::1]:53: read: connection refused
DEBU[0000] Error pulling candidate registry.opensuse.org/opensuse/tumbleweed:latest: internal error: unable to copy from source docker://registry.opensuse.org/opensuse/tumbleweed:latest: initializing source docker://registry.opensuse.org/opensuse/tumbleweed:latest: pinging container registry registry.opensuse.org: Get "https://registry.opensuse.org/v2/": dial tcp: lookup registry.opensuse.org on [::1]:53: read udp [::1]:36300->[::1]:53: read: connection refused
Error: creating build container: internal error: unable to copy from source docker://registry.opensuse.org/opensuse/tumbleweed:latest: initializing source docker://registry.opensuse.org/opensuse/tumbleweed:latest: pinging container registry registry.opensuse.org: Get "https://registry.opensuse.org/v2/": dial tcp: lookup registry.opensuse.org on [::1]:53: read udp [::1]:36300->[::1]:53: read: connection refused
DEBU[0000] Shutting down engines
INFO[0000] Received shutdown.Stop(), terminating!        PID=1958

Describe the results you expected

Build should work.

podman info output

host:
  arch: arm
  buildahVersion: 1.40.0
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  - dmem
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.13-1.3.armv7hl
    path: /usr/bin/conmon
    version: 'conmon version 2.1.13, commit: unknown'
  cpuUtilization:
    idlePercent: 99.81
    systemPercent: 0.08
    userPercent: 0.11
  cpus: 32
  databaseBackend: sqlite
  distribution:
    distribution: unknown
    version: unknown
  eventLogger: file
  freeLocks: 2048
  hostname: oss-cobbler-03
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 6.14.6-2-default
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 2909282304
  memTotal: 4088094720
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: aardvark-dns-1.15.0-1.1.armv7hl
      path: /usr/libexec/podman/aardvark-dns
      version: aardvark-dns 1.15.0
    package: netavark-1.15.0-1.1.armv7hl
    path: /usr/libexec/podman/netavark
    version: netavark 1.15.0
  ociRuntime:
    name: runc
    package: runc-1.3.0-1.1.armv7hl
    path: /usr/bin/runc
    version: |-
      runc version 1.3.0
      commit: v1.3.0-0-g4ca628d1d4c9
      spec: 1.2.1
      go: go1.24.2
      libseccomp: 2.6.0
  os: linux
  pasta:
    executable: /bin/pasta
    package: passt-20250512.8ec1341-1.1.armv7hl
    version: ""
  remoteSocket:
    exists: true
    path: /run/podman/podman.sock
  rootlessNetworkCmd: pasta
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: false
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /bin/slirp4netns
    package: slirp4netns-1.3.2-1.2.armv7hl
    version: |-
      slirp4netns version 1.3.2
      commit: unknown
      libslirp: 4.9.0
      SLIRP_CONFIG_VERSION_MAX: 6
      libseccomp: 2.6.0
  swapFree: 1073737728
  swapTotal: 1073737728
  uptime: 0h 9m 23.00s
  variant: v8
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.opensuse.org
  - registry.suse.com
  - docker.io
store:
  configFile: /usr/share/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mountopt: nodev
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 42275667968
  graphRootUsed: 873910272
  graphStatus:
    Backing Filesystem: extfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Supports shifting: "true"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 6
  runRoot: /run/containers/storage
  transientStore: false
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 5.5.0
  Built: 1747285822
  BuiltTime: Thu May 15 05:10:22 2025
  GitCommit: ""
  GoVersion: go1.24.3
  Os: linux
  OsArch: linux/arm
  Version: 5.5.0

Podman in a container

No

Privileged Or Rootless

None

Upstream Latest Release

Yes

Additional environment details

This is inside the openSUSE Build Service targeting openSUSE Tumbleweed armv7.

Additional information

No response

[Vogtinator]

To add some info, the issue is that the first FROM line sets which architecture the next FROM line has to be.

With this Dockerfile:

FROM opensuse/tumbleweed

it's happy if there is a local opensuse/tumbleweed image with linux/arm available.

However, with this Dockerfile:

FROM scratch
FROM opensuse/tumbleweed

it complains that the local opensuse/tumbleweed image is linux/arm instead of linux/arm/v8 and tries to download an image for linux/arm/v8 specifically. In OBS this is visible as a failure because there is no network connectivity.

[Luap99]

Moving to buildah as we use its that for building.

[Luap99]

@nalind @flouthoc Did the variant handling change in the latest release?

[nalind]

IIRC we started filling in the host's variant in cases where the target platform isn't specified, in an attempt to more closely mimic the behavior of docker build.