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Container Storage Library
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`podman load` unreliable with ZFS driver #1061

Open mskarbek opened 3 years ago

mskarbek commented 3 years ago

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

Occasionally podman fails to load image with error:

Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)

Let's say I have a few images to load from archives:

root in /tmp/tmp.BcVHmxQCba/images
❯ ls -1
base.tar
micro.tar
minio.tar
nexus.tar
nginx1.18.tar
openjdk8-jre.tar
step-ca.tar
systemd.tar

At some point, ZFS driver just fails unexpectedly:

root in /tmp/tmp.BcVHmxQCba/images
❯ for IMG in $(ls -1); do podman load -i $IMG; done
Getting image source signatures
Copying blob fbde709b7a5b done
Copying blob af53933dffc5 done
Copying config 24890d2f24 done
Writing manifest to image destination
Storing signatures
Loaded image(s): registry.lab.skarbek.name/bootstrap/base:latest
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying config 9b325ce58f done
Writing manifest to image destination
Storing signatures
Loaded image(s): registry.lab.skarbek.name/bootstrap/micro:latest
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
Copying blob c6ccedf52c3b done
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
Copying blob b14c4226ddb2 done
Copying blob d548657cfebd done
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
Copying blob 69ee9abc0771 done
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
Copying blob b14c4226ddb2 skipped: already exists
ERRO[0000] Error unmounting /var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0: invalid argument  storage-driver=zfs
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
Copying blob 7f16323b4395 done
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Getting image source signatures
Copying blob fbde709b7a5b skipped: already exists
Copying blob af53933dffc5 skipped: already exists
ERRO[0000] Error unmounting /var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0: invalid argument  storage-driver=zfs
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)

Debug log from a single occurrence of the error:

root in /tmp/tmp.BcVHmxQCba/images
❯ podman --log-level debug load -i systemd.tar
INFO[0000] podman filtering at log level debug
DEBU[0000] Called load.PersistentPreRunE(podman --log-level debug load -i systemd.tar)
DEBU[0000] Merged system config "/usr/share/containers/containers.conf"
DEBU[0000] Using conmon: "/usr/bin/conmon"
DEBU[0000] Initializing boltdb state at /var/lib/containers/storage/libpod/bolt_state.db
DEBU[0000] Using graph driver zfs
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] Set libpod namespace to ""
DEBU[0000] [graphdriver] trying provided driver "zfs"
DEBU[0000] ID:b9c3bd02-6a39-4868-a495-257322cb4cf8 START zfs list -rHp -t filesystem -o name,origin,used,available,mountpoint,compression,type,volsize,quota,referenced,written,logicalused,usedbydataset b51d7037-4cc1-4ad9-9e50-b533fd87b24e/datafs/var/lib/containers  storage-driver=zfs
DEBU[0000] ID:b9c3bd02-6a39-4868-a495-257322cb4cf8 FINISH  storage-driver=zfs
DEBU[0000] Initializing event backend journald
DEBU[0000] configured OCI runtime kata initialization failed: no valid executable found for OCI runtime kata: invalid argument
DEBU[0000] configured OCI runtime runsc initialization failed: no valid executable found for OCI runtime runsc: invalid argument
DEBU[0000] Using OCI runtime "/usr/bin/crun"
INFO[0000] Found CNI network cni0 (type=bridge) at /etc/cni/net.d/10-cni0.conflist
INFO[0000] Found CNI network podman (type=bridge) at /etc/cni/net.d/87-podman.conflist
DEBU[0000] Default CNI network name podman is unchangeable
INFO[0000] Setting parallel job count to 13
DEBU[0000] Loading image from "systemd.tar"
DEBU[0000] -> Attempting to load "systemd.tar" as an OCI directory
DEBU[0000] parsed reference into "[zfs@/var/lib/containers/storage+/run/containers/storage]localhost/systemd.tar:latest"
DEBU[0000] Copying source image systemd.tar: to destination image [zfs@/var/lib/containers/storage+/run/containers/storage]localhost/systemd.tar:latest
DEBU[0000] Error loading systemd.tar: initializing source oci:systemd.tar:: open systemd.tar/index.json: not a directory
DEBU[0000] -> Attempting to load "systemd.tar" as an OCI archive
DEBU[0001] Error deleting temporary directory: <nil>
DEBU[0001] Error loading systemd.tar: loading index: open /var/tmp/oci993717541/index.json: no such file or directory
DEBU[0001] -> Attempting to load "systemd.tar" as a Docker dir
DEBU[0001] parsed reference into "[zfs@/var/lib/containers/storage+/run/containers/storage]localhost/systemd.tar:latest"
DEBU[0001] Copying source image systemd.tar to destination image [zfs@/var/lib/containers/storage+/run/containers/storage]localhost/systemd.tar:latest
DEBU[0001] Using blob info cache at /var/lib/containers/cache/blob-info-cache-v1.boltdb
DEBU[0001] Error loading systemd.tar: determining manifest MIME type for dir:systemd.tar: open systemd.tar/manifest.json: not a directory
DEBU[0001] -> Attempting to load "systemd.tar" as a Docker archive
DEBU[0001] No compression detected
DEBU[0001] parsed reference into "[zfs@/var/lib/containers/storage+/run/containers/storage]registry.lab.skarbek.name/bootstrap/systemd:latest"
DEBU[0001] Copying source image systemd.tar:registry.lab.skarbek.name/bootstrap/systemd:latest to destination image [zfs@/var/lib/containers/storage+/run/containers/storage]registry.lab.skarbek.name/bootstrap/systemd:latest
DEBU[0001] Using blob info cache at /var/lib/containers/cache/blob-info-cache-v1.boltdb
DEBU[0001] No compression detected
DEBU[0001] No compression detected
DEBU[0001] No compression detected
DEBU[0001] IsRunningImageAllowed for image docker-archive:
DEBU[0001]  Using default policy section
DEBU[0001]  Requirement 0: allowed
DEBU[0001] Overall: allowed
Getting image source signatures
DEBU[0001] Manifest has MIME type application/vnd.docker.distribution.manifest.v2+json, ordered candidate list [application/vnd.docker.distribution.manifest.v2+json, application/vnd.docker.distribution.manifest.v1+prettyjws, application/vnd.oci.image.manifest.v1+json, application/vnd.docker.distribution.manifest.v1+json]
DEBU[0001] ... will first try using the original manifest unmodified
DEBU[0001] Skipping blob sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef (already present):
Copying blob 5f70bf18a086 skipped: already exists
Copying blob 5f70bf18a086 skipped: already exists
Copying blob 0af45d730ac3 skipped: already exists
DEBU[0001] mount("b51d7037-4cc1-4ad9-9e50-b533fd87b24e/datafs/var/lib/containers/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0", "/var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0", "")  storage-driver=zfs
ERRO[0001] Error unmounting /var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0: invalid argument  storage-driver=zfs
DEBU[0001] Error loading systemd.tar: trying to reuse blob sha256:5576786dd32999d193c0a8e82b1235611131c8128404af9999195884a9d3be9e at destination: reading layer "dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0" for blob "sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef": error creating zfs mount: mount b51d7037-4cc1-4ad9-9e50-b533fd87b24e/datafs/var/lib/containers/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0:/var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0: no such file or directory
DEBU[0001] Error loading systemd.tar: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)
Error: payload does not match any of the supported image formats (oci, oci-archive, dir, docker-archive)

Working solution for now is to remove podmanstorage db/configuration by either destroying each container/image dataset and rm -rf everything inside /var/lib/containers or simply destroying the whole dataset mounted as /var/lib/containers and create fresh empty one.

podman can work weeks, months without issue on one host, this is sporadic and hard to reliably reproduce. I was looking for a good trigger of this behavior but unsuccessfully for now, reporting this for feature reference.

Steps to reproduce the issue:

  1. Use podman for some time

  2. Try to load image from archive

Describe the results you received: podman fails to load image from archive

Describe the results you expected: podman loads image from archive without issues

Additional information you deem important (e.g. issue happens only occasionally):

Output of podman version:

Version:      3.4.1
API Version:  3.4.1
Go Version:   go1.16.8
Built:        Wed Oct 20 16:35:28 2021
OS/Arch:      linux/amd64

Output of podman info --debug:

host:
  arch: amd64
  buildahVersion: 1.23.1
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - misc
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.0.30-2.fc34.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.0.30, commit: '
  cpus: 4
  distribution:
    distribution: fedora
    variant: workstation
    version: "34"
  eventLogger: journald
  hostname: ishikawa
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 5.14.13-200.fc34.x86_64
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 1632423936
  memTotal: 16494628864
  ociRuntime:
    name: crun
    package: crun-1.2-1.fc34.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.2
      commit: 4f6c8e0583c679bfee6a899c05ac6b916022561b
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    path: /run/podman/podman.sock
  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: true
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.1.12-2.fc34.x86_64
    version: |-
      slirp4netns version 1.1.12
      commit: 7a104a101aa3278a2152351a082a6df71f57c9a3
      libslirp: 4.4.0
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.0
  swapFree: 4891500544
  swapTotal: 8589930496
  uptime: 99h 0m 28.02s (Approximately 4.12 days)
plugins:
  log:
  - k8s-file
  - none
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  10.8.0.254:8082:
    Blocked: false
    Insecure: true
    Location: 10.8.0.254:8082
    MirrorByDigestOnly: false
    Mirrors: null
    Prefix: 10.8.0.254:8082
  10.88.0.249:8082:
    Blocked: false
    Insecure: true
    Location: 10.88.0.249:8082
    MirrorByDigestOnly: false
    Mirrors: null
    Prefix: 10.88.0.249:8082
  10.88.0.252:8082:
    Blocked: false
    Insecure: true
    Location: 10.88.0.252:8082
    MirrorByDigestOnly: false
    Mirrors: null
    Prefix: 10.88.0.252:8082
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
  - quay.io
store:
  configFile: /etc/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: zfs
  graphOptions: {}
  graphRoot: /var/lib/containers/storage
  graphStatus:
    Compression: lz4
    Parent Dataset: b51d7037-4cc1-4ad9-9e50-b533fd87b24e/datafs/var/lib/containers
    Parent Quota: "no"
    Space Available: "44588359680"
    Space Used By Parent: "493617152"
    Zpool: b51d7037-4cc1-4ad9-9e50-b533fd87b24e
    Zpool Health: ONLINE
  imageStore:
    number: 8
  runRoot: /run/containers/storage
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 3.4.1
  Built: 1634740528
  BuiltTime: Wed Oct 20 16:35:28 2021
  GitCommit: ""
  GoVersion: go1.16.8
  OsArch: linux/amd64
  Version: 3.4.1

Package info (e.g. output of rpm -q podman or apt list podman):

podman-3.4.1-1.fc34.x86_64

Have you tested with the latest version of Podman and have you checked the Podman Troubleshooting Guide? (https://github.com/containers/podman/blob/master/troubleshooting.md)

Yes

Additional environment details (AWS, VirtualBox, physical, etc.): Independent of host type, observed on bare metal, KVM, VMWare, AWS. Observed on Fedora (32, 33, 34) and RHEL 8. OpenZFS 2.0.x and 2.1.x.

mheon commented 3 years ago

Error's coming out of c/common image library, but I suspect it's hiding a real error from c/storage. @vrothberg PTAL

vrothberg commented 3 years ago

trying to reuse blob sha256:5576786dd32999d193c0a8e82b1235611131c8128404af9999195884a9d3be9e at destination: reading layer "dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0" for blob "sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef": error creating zfs mount: mount b51d7037-4cc1-4ad9-9e50-b533fd87b24e/datafs/var/lib/containers/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0:/var/lib/containers/storage/zfs/graph/dce1852f14fde9fa55fb420d688640efc747b7be931c00c11fe444aabfde63b0: no such file or directory

Probably ZFS related which I have absolutely no experience in. @giuseppe, do you have advice?

rhatdan commented 3 years ago

We have no clue and little experience with zfs, I would recommend you switch to Overlay,