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Podman: A tool for managing OCI containers and pods.
https://podman.io
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[Bug]: Unable to use Native Overlayfs - Podman reverts back to fuse-overlayfs #17057

Closed cgruver closed 1 year ago

cgruver commented 1 year ago

Issue Description

Environment Info:

I am testing using podman for rootless container builds within Eclipse Che (OpenShift Dev Spaces)

VFS is painfully slow, especially for container in container.

Fuse-overlayfs does not work in rootless container in container on OpenShift

I would like to leverage native overlayfs support but cannot seem to find any documentation on how to enable it.

This really good post from 2021 is the nearest to a guide that I have found: https://www.redhat.com/sysadmin/podman-rootless-overlay

Attempting a basic podman build fails because it tries to default to fuse-overlayfs

Steps to reproduce the issue

Steps to reproduce the issue

  1. Create an Eclipse Che workspace from: https://github.com/cgruver/workspace-dev
  2. Open a terminal in the workspace after it starts
  3. Execute: podman info
  4. Observe that there is no overlay helper configured: 
    store:
 configFile: /home/user/.config/containers/storage.conf
 containerStore:
   number: 0
   paused: 0
   running: 0
   stopped: 0
 graphDriverName: overlay
 graphOptions: {}
 graphRoot: /home/user/.local/share/containers/storage
 graphRootAllocated: 107363696640
 graphRootUsed: 37010493440
 graphStatus:
   Backing Filesystem: overlayfs
   Native Overlay Diff: "false"
   Supports d_type: "true"
   Using metacopy: "false"
  5. execute podman pull quay.io/cgruver0/che/podman-basic:latest
  6. Observe that it is successful
  7. Create a Dockerfile:
    echo "FROM quay.io/cgruver0/che/podman-basic:latest" > Dockerfile
  8. Attempt to build a new image: podman build -t test:test .
  9. Observe the failure: 
    STEP 1/1: FROM quay.io/cgruver0/che/podman-basic:latest
ERRO[0000] Unmounting /home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/merged: invalid argument 
Error: mounting new container: mounting build container "6ee664ea51dce23daa109bbbf309b138fe3804db48ff7014e539d980452bccc4": creating overlay mount to /home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/merged, mount_data="lowerdir=/home/user/.local/share/containers/storage/overlay/l/E5XLE6JRIJAZPFEK2WSFKO5SCO:/home/user/.local/share/containers/storage/overlay/l/QEC2ELUKZJ7BYFTRYCON4WPQUT,upperdir=/home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/diff,workdir=/home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/work,,volatile": using mount program /usr/bin/fuse-overlayfs: unknown argument ignored: lazytime
unknown argument ignored: 
fuse: device not found, try 'modprobe fuse' first
fuse-overlayfs: cannot mount: No such file or directory
: exit status 1
  10. Observe that .has-mount-program file exists 
    ls -al ~/.local/share/containers/storage/overlay
drwx------.  5 user root  185 Jan 10 14:07 .
drwx------. 10 user root 4096 Jan 10 13:44 ..
-rw-------.  1 user root    4 Jan 10 14:07 .has-mount-program

If you execute podman system reset and try the above steps again, the same results are observed and the .has-mount-program file is recreated.

Describe the results you received

  1. Attempt to build a new image: podman build -t test:test .
  2. Observe the failure: 
    STEP 1/1: FROM quay.io/cgruver0/che/podman-basic:latest
ERRO[0000] Unmounting /home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/merged: invalid argument 
Error: mounting new container: mounting build container "6ee664ea51dce23daa109bbbf309b138fe3804db48ff7014e539d980452bccc4": creating overlay mount to /home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/merged, mount_data="lowerdir=/home/user/.local/share/containers/storage/overlay/l/E5XLE6JRIJAZPFEK2WSFKO5SCO:/home/user/.local/share/containers/storage/overlay/l/QEC2ELUKZJ7BYFTRYCON4WPQUT,upperdir=/home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/diff,workdir=/home/user/.local/share/containers/storage/overlay/31ca8ae6b8c7cf62112c1f12ab961368f27041aa8b85bd406af412438384815f/work,,volatile": using mount program /usr/bin/fuse-overlayfs: unknown argument ignored: lazytime
unknown argument ignored: 
fuse: device not found, try 'modprobe fuse' first
fuse-overlayfs: cannot mount: No such file or directory
: exit status 1

Describe the results you expected

Successful image build

podman info output

host:
  arch: amd64
  buildahVersion: 1.28.0
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.5-1.el9.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.5, commit: 48adb81a22c26f0660f0f37d984baebe7b9ade98'
  cpuUtilization:
    idlePercent: 99.12
    systemPercent: 0.29
    userPercent: 0.59
  cpus: 12
  distribution:
    distribution: '"centos"'
    version: "9"
  eventLogger: file
  hostname: workspaced0f3e1a89b684614-7fbd6b576f-r9vlr
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 0
      size: 1
    - container_id: 1
      host_id: 10000
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1000690000
      size: 1
    - container_id: 1
      host_id: 10000
      size: 65536
  kernel: 5.14.0-200.el9.x86_64
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 35666579456
  memTotal: 67003813888
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.7.2-1.el9.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.7.2
      commit: 0356bf4aff9a133d655dc13b1d9ac9424706cac4
      rundir: /tmp/podman-run-1000690000/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    path: /tmp/podman-run-1000690000/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: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-2.el9.x86_64
    version: |-
      slirp4netns version 1.2.0
      commit: 656041d45cfca7a4176f6b7eed9e4fe6c11e8383
      libslirp: 4.4.0
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.2
  swapFree: 0
  swapTotal: 0
  uptime: 66h 3m 2.00s (Approximately 2.75 days)
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  search:
  - registry.access.redhat.com
  - registry.redhat.io
  - docker.io
store:
  configFile: /home/user/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/user/.local/share/containers/storage
  graphRootAllocated: 107363696640
  graphRootUsed: 37010493440
  graphStatus:
    Backing Filesystem: overlayfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 0
  runRoot: /tmp/podman-run-1000690000/containers
  volumePath: /home/user/.local/share/containers/storage/volumes
version:
  APIVersion: 4.3.1
  Built: 1669638068
  BuiltTime: Mon Nov 28 12:21:08 2022
  GitCommit: ""
  GoVersion: go1.19.2
  Os: linux
  OsArch: linux/amd64
  Version: 4.3.1

Podman in a container

Yes

Privileged Or Rootless

Rootless

Upstream Latest Release

Yes

Additional environment details

Additional information

Dockerfile for the podman container:

FROM quay.io/centos/centos:stream9

ARG USER_HOME_DIR="/home/user"
ARG WORK_DIR="/projects"

ENV HOME=${USER_HOME_DIR}
ENV _BUILDAH_STARTED_IN_USERNS=""

# Note: compat-openssl11 & libbrotli are needed for che-code (Che build of VS Code)

RUN dnf install -y openssl compat-openssl11 libbrotli git tar which shadow-utils bash zsh wget jq podman buildah skopeo; \
    dnf update -y ; \
    dnf clean all ; \
    mkdir -p ${USER_HOME_DIR} ; \
    mkdir -p ${WORK_DIR} ; \
    chgrp -R 0 /home ; \
    #
    # Setup for root-less podman
    #
    setcap cap_setuid+ep /usr/bin/newuidmap ; \
    setcap cap_setgid+ep /usr/bin/newgidmap ; \
    touch /etc/subgid /etc/subuid ; \
    chmod -R g=u /etc/passwd /etc/group /etc/subuid /etc/subgid /home ${WORK_DIR} ; \
    echo user:10000:65536 > /etc/subuid  ; \
    echo user:10000:65536 > /etc/subgid

USER 10001
WORKDIR /projects
cgruver commented 1 year ago

FWIW, It looks like podman is defaulting to fuse-overlayfs on a plain CentOS Stream system too. Not container in container.

Kernel: 5.14.0-205.el9.x86_64

podman version
Client:       Podman Engine
Version:      4.3.1
API Version:  4.3.1
Go Version:   go1.19.2
Built:        Mon Nov 28 07:21:08 2022
OS/Arch:      linux/amd64

podman info:

host:
  arch: amd64
  buildahVersion: 1.28.0
  cgroupControllers:
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.5-1.el9.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.5, commit: 48adb81a22c26f0660f0f37d984baebe7b9ade98'
  cpuUtilization:
    idlePercent: 99.88
    systemPercent: 0.06
    userPercent: 0.06
  cpus: 4
  distribution:
    distribution: '"centos"'
    version: "9"
  eventLogger: file
  hostname: dev-host
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 100
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
  kernel: 5.14.0-205.el9.x86_64
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 30525919232
  memTotal: 33271230464
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.7.2-1.el9.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.7.2
      commit: 0356bf4aff9a133d655dc13b1d9ac9424706cac4
      rundir: /run/user/1000/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    path: /run/user/1000/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: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-2.el9.x86_64
    version: |-
      slirp4netns version 1.2.0
      commit: 656041d45cfca7a4176f6b7eed9e4fe6c11e8383
      libslirp: 4.4.0
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.2
  swapFree: 16844320768
  swapTotal: 16844320768
  uptime: 169h 17m 37.00s (Approximately 7.04 days)
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  search:
  - registry.access.redhat.com
  - registry.redhat.io
  - docker.io
store:
  configFile: /home/cgruver/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/cgruver/.local/share/containers/storage
  graphRootAllocated: 481321295872
  graphRootUsed: 7043735552
  graphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 12
  runRoot: /run/user/1000/containers
  volumePath: /home/cgruver/.local/share/containers/storage/volumes
version:
  APIVersion: 4.3.1
  Built: 1669638068
  BuiltTime: Mon Nov 28 07:21:08 2022
  GitCommit: ""
  GoVersion: go1.19.2
  Os: linux
  OsArch: linux/amd64
  Version: 4.3.1

After running podman system reset the .has-mount-program file is recreated on the next podman command.

cgruver commented 1 year ago

Here is the same build in an Eclipse Che workspace with debug:

Possibly interesting entries:

...
WARN[0000] "/" is not a shared mount, this could cause issues or missing mounts with rootless containers 
...
Using graph driver overlay                   
DEBU[0000] Using graph root /home/user/.local/share/containers/storage 
DEBU[0000] Using run root /tmp/podman-run-1000690000/containers 
DEBU[0000] Using static dir /home/user/.local/share/containers/storage/libpod 
DEBU[0000] Using tmp dir /tmp/podman-run-1000690000/libpod/tmp 
DEBU[0000] Using volume path /home/user/.local/share/containers/storage/volumes 
DEBU[0000] Set libpod namespace to ""                   
DEBU[0000] [graphdriver] trying provided driver "overlay" 
DEBU[0000] Unable to create kernel-style whiteout: operation not permitted 
DEBU[0000] backingFs=overlayfs, projectQuotaSupported=false, useNativeDiff=false, usingMetacopy=false 
...

Full Log:

bash-5.1$ podman --log-level debug build -t test:test .
INFO[0000] podman filtering at log level debug          
DEBU[0000] Called build.PersistentPreRunE(podman --log-level debug build -t test:test .) 
DEBU[0000] Merged system config "/usr/share/containers/containers.conf" 
DEBU[0000] Using conmon: "/usr/bin/conmon"              
DEBU[0000] Initializing boltdb state at /home/user/.local/share/containers/storage/libpod/bolt_state.db 
DEBU[0000] systemd-logind: dial unix /var/run/dbus/system_bus_socket: connect: no such file or directory 
DEBU[0000] Using graph driver overlay                   
DEBU[0000] Using graph root /home/user/.local/share/containers/storage 
DEBU[0000] Using run root /tmp/podman-run-1000690000/containers 
DEBU[0000] Using static dir /home/user/.local/share/containers/storage/libpod 
DEBU[0000] Using tmp dir /tmp/podman-run-1000690000/libpod/tmp 
DEBU[0000] Using volume path /home/user/.local/share/containers/storage/volumes 
DEBU[0000] Set libpod namespace to ""                   
DEBU[0000] Not configuring container store              
DEBU[0000] Initializing event backend file              
DEBU[0000] Configured OCI runtime runc initialization failed: no valid executable found for OCI runtime runc: 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 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] Using OCI runtime "/usr/bin/crun"            
WARN[0000] "/" is not a shared mount, this could cause issues or missing mounts with rootless containers 
INFO[0000] podman filtering at log level debug          
DEBU[0000] Called build.PersistentPreRunE(podman --log-level debug build -t test:test .) 
DEBU[0000] Merged system config "/usr/share/containers/containers.conf" 
DEBU[0000] Using conmon: "/usr/bin/conmon"              
DEBU[0000] Initializing boltdb state at /home/user/.local/share/containers/storage/libpod/bolt_state.db 
DEBU[0000] systemd-logind: dial unix /var/run/dbus/system_bus_socket: connect: no such file or directory 
DEBU[0000] Using graph driver overlay                   
DEBU[0000] Using graph root /home/user/.local/share/containers/storage 
DEBU[0000] Using run root /tmp/podman-run-1000690000/containers 
DEBU[0000] Using static dir /home/user/.local/share/containers/storage/libpod 
DEBU[0000] Using tmp dir /tmp/podman-run-1000690000/libpod/tmp 
DEBU[0000] Using volume path /home/user/.local/share/containers/storage/volumes 
DEBU[0000] Set libpod namespace to ""                   
DEBU[0000] [graphdriver] trying provided driver "overlay" 
DEBU[0000] Unable to create kernel-style whiteout: operation not permitted 
DEBU[0000] backingFs=overlayfs, projectQuotaSupported=false, useNativeDiff=false, usingMetacopy=false 
DEBU[0000] Initializing event backend file              
DEBU[0000] Configured OCI runtime runc initialization failed: no valid executable found for OCI runtime runc: 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 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] Using OCI runtime "/usr/bin/crun"            
DEBU[0000] Successfully loaded 1 networks               
DEBU[0000] Podman detected system restart - performing state refresh 
INFO[0000] Setting parallel job count to 37             
DEBU[0000] Normalized platform linux/amd64 to {amd64 linux  [] } 
DEBU[0000] base for stage 0: "quay.io/cgruver0/che/podman-basic:latest" 
DEBU[0000] FROM "quay.io/cgruver0/che/podman-basic:latest" 
STEP 1/1: FROM quay.io/cgruver0/che/podman-basic:latest
DEBU[0000] Pulling image quay.io/cgruver0/che/podman-basic:latest (policy: missing) 
DEBU[0000] Looking up image "quay.io/cgruver0/che/podman-basic:latest" in local containers storage 
DEBU[0000] Normalized platform linux/amd64 to {amd64 linux  [] } 
DEBU[0000] Trying "quay.io/cgruver0/che/podman-basic:latest" ... 
DEBU[0000] Trying "quay.io/cgruver0/che/podman-basic:latest" ... 
DEBU[0000] Trying "quay.io/cgruver0/che/podman-basic:latest" ... 
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf" 
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf.d/000-shortnames.conf" 
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf.d/001-rhel-shortnames.conf" 
DEBU[0000] Loading registries configuration "/etc/containers/registries.conf.d/002-rhel-shortnames-overrides.conf" 
DEBU[0000] Normalized platform linux/amd64 to {amd64 linux  [] } 
DEBU[0000] Attempting to pull candidate quay.io/cgruver0/che/podman-basic:latest for quay.io/cgruver0/che/podman-basic:latest 
DEBU[0000] parsed reference into "[overlay@/home/user/.local/share/containers/storage+/tmp/podman-run-1000690000/containers]quay.io/cgruver0/che/podman-basic:latest" 
Trying to pull quay.io/cgruver0/che/podman-basic:latest...
DEBU[0000] Copying source image //quay.io/cgruver0/che/podman-basic:latest to destination image [overlay@/home/user/.local/share/containers/storage+/tmp/podman-run-1000690000/containers]quay.io/cgruver0/che/podman-basic:latest 
DEBU[0000] Using registries.d directory /etc/containers/registries.d 
DEBU[0000] Trying to access "quay.io/cgruver0/che/podman-basic:latest" 
DEBU[0000] No credentials matching quay.io/cgruver0/che/podman-basic found in /tmp/podman-run-1000690000/containers/auth.json 
DEBU[0000] No credentials matching quay.io/cgruver0/che/podman-basic found in /home/user/.config/containers/auth.json 
DEBU[0000] No credentials matching quay.io/cgruver0/che/podman-basic found in /home/user/.docker/config.json 
DEBU[0000] No credentials matching quay.io/cgruver0/che/podman-basic found in /home/user/.dockercfg 
DEBU[0000] No credentials for quay.io/cgruver0/che/podman-basic found 
DEBU[0000]  No signature storage configuration found for quay.io/cgruver0/che/podman-basic:latest, using built-in default file:///home/user/.local/share/containers/sigstore 
DEBU[0000] Looking for TLS certificates and private keys in /etc/docker/certs.d/quay.io 
DEBU[0000] GET https://quay.io/v2/                      
DEBU[0000] Ping https://quay.io/v2/ status 401          
DEBU[0000] GET https://quay.io/v2/auth?scope=repository%3Acgruver0%2Fche%2Fpodman-basic%3Apull&service=quay.io 
DEBU[0000] Increasing token expiration to: 60 seconds   
DEBU[0000] GET https://quay.io/v2/cgruver0/che/podman-basic/manifests/latest 
DEBU[0000] Content-Type from manifest GET is "application/vnd.oci.image.manifest.v1+json" 
DEBU[0000] Using blob info cache at /home/user/.local/share/containers/cache/blob-info-cache-v1.boltdb 
DEBU[0000] IsRunningImageAllowed for image docker:quay.io/cgruver0/che/podman-basic:latest 
DEBU[0000]  Using default policy section                
DEBU[0000]  Requirement 0: allowed                      
DEBU[0000] Overall: allowed                             
DEBU[0000] Downloading /v2/cgruver0/che/podman-basic/blobs/sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85 
DEBU[0000] GET https://quay.io/v2/cgruver0/che/podman-basic/blobs/sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85 
Getting image source signatures
DEBU[0001] Reading /home/user/.local/share/containers/sigstore/cgruver0/che/podman-basic@sha256=6e0d34b764affe8f865878c47b6ff7637d8cad07532dfcf8329f8659773fcb2c/signature-1 
DEBU[0001] Not looking for sigstore attachments: disabled by configuration 
DEBU[0001] 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[0001] ... will first try using the original manifest unmodified 
DEBU[0001] Checking if we can reuse blob sha256:545f20c09f6464668d2754516b830b59a804925ca51897f4ea562a9974f1797f: general substitution = true, compression for MIME type "application/vnd.oci.image.layer.v1.tar+gzip" = true 
DEBU[0001] Checking if we can reuse blob sha256:df72cb0b47c287f5908f92053a7174e3ddcbc2f24c0e6a24d8dbc8d90030291b: general substitution = true, compression for MIME type "application/vnd.oci.image.layer.v1.tar+gzip" = true 
DEBU[0001] Failed to retrieve partial blob: blob type not supported for partial retrieval 
Copying blob 545f20c09f64 [--------------------------------------] 0.0b / 107.3MiB (skipped: 0.0b = 0.00%)
DEBU[0001] Downloading /v2/cgruver0/che/podman-basic/blobs/sha256:545f20c09f6464668d2754516b830b59a804925ca51897f4ea562a9974f1797f 
DEBU[0001] GET https://quay.io/v2/cgruver0/che/podman-basic/blobs/sha256:545f20c09f6464668d2754516b830b59a804925ca51897f4ea562a9974f1797f 
DEBU[0001] Failed to retrieve partial blob: blob type not supported for partial retrieval 
DEBU[0001] Downloading /v2/cgruver0/che/podman-basic/blobs/sha256:df72cb0b47c287f5908f92053a7174e3ddcbc2f24c0e6a24d8dbc8d90030291b 
Copying blob 545f20c09f64 [--------------------------------------] 0.0b / 107.3MiB
Copying blob df72cb0b47c2 [--------------------------------------] 0.0b / 55.3MiB (skipped: 0.0b = 0.00%)
Copying blob 545f20c09f64 [--------------------------------------] 0.0b / 107.3MiB
Copying blob df72cb0b47c2 [--------------------------------------] 36.6KiB / 55.3MiB
Copying blob 545f20c09f64 [===============>----------------------] 46.5MiB / 107.3MiB
Copying blob 545f20c09f64 done  
Copying blob 545f20c09f64 done  
Copying blob df72cb0b47c2 done  
DEBU[0022] No compression detected                      
DEBU[0022] Compression change for blob sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85 ("application/vnd.oci.image.config.v1+json") not supported 
DEBU[0022] Using original blob without modification     
Copying config 4c826aaf39 done  
Writing manifest to image destination
Storing signatures
DEBU[0022] setting image creation date to 2023-01-10 14:30:06.343291516 +0000 UTC 
DEBU[0022] created new image ID "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] saved image metadata "{\"signatures-sizes\":{\"sha256:6e0d34b764affe8f865878c47b6ff7637d8cad07532dfcf8329f8659773fcb2c\":[]}}" 
DEBU[0022] added name "quay.io/cgruver0/che/podman-basic:latest" to image "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] Pulled candidate quay.io/cgruver0/che/podman-basic:latest successfully 
DEBU[0022] Looking up image "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" in local containers storage 
DEBU[0022] Trying "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" ... 
DEBU[0022] parsed reference into "[overlay@/home/user/.local/share/containers/storage+/tmp/podman-run-1000690000/containers]@4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] Found image "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" as "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" in local containers storage 
DEBU[0022] Found image "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" as "4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" in local containers storage ([overlay@/home/user/.local/share/containers/storage+/tmp/podman-run-1000690000/containers]@4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85) 
DEBU[0022] exporting opaque data as blob "sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] exporting opaque data as blob "sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] exporting opaque data as blob "sha256:4c826aaf39f88273015c72549551f7cd559a0ab6d3c9f6ab02ab622a4d0ebf85" 
DEBU[0022] Normalized platform linux/amd64 to {amd64 linux  [] } 
DEBU[0022] [graphdriver] trying provided driver "overlay" 
DEBU[0022] overlay: storage already configured with a mount-program 
DEBU[0022] backingFs=overlayfs, projectQuotaSupported=false, useNativeDiff=false, usingMetacopy=false 
DEBU[0022] Check for idmapped mounts support create mapped mount: invalid argument 
DEBU[0022] overlay: mount_data=lowerdir=/home/user/.local/share/containers/storage/overlay/l/47MJSR3GV3DAJXUFANWSTBNC7H:/home/user/.local/share/containers/storage/overlay/l/KHNLLU2AIGALFA6KIFMPABBMMQ,upperdir=/home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/diff,workdir=/home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/work,,volatile 
ERRO[0022] Unmounting /home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/merged: invalid argument 
Error: mounting new container: mounting build container "48f75a8309ccd948b598d3e019d0cccc46b073e80cc52223dc51758f1f684267": creating overlay mount to /home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/merged, mount_data="lowerdir=/home/user/.local/share/containers/storage/overlay/l/47MJSR3GV3DAJXUFANWSTBNC7H:/home/user/.local/share/containers/storage/overlay/l/KHNLLU2AIGALFA6KIFMPABBMMQ,upperdir=/home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/diff,workdir=/home/user/.local/share/containers/storage/overlay/12b0047ed9aa887c512293f4862f0ddaddd91d3ae2d8122ed8c7ce580b2b3c03/work,,volatile": using mount program /usr/bin/fuse-overlayfs: unknown argument ignored: lazytime
unknown argument ignored: 
fuse: device not found, try 'modprobe fuse' first
fuse-overlayfs: cannot mount: No such file or directory
: exit status 1
DEBU[0022] Failed to add pause process to systemd sandbox cgroup: exec: "dbus-launch": executable file not found in $PATH
rhatdan commented 1 year ago

@giuseppe PTAL

giuseppe commented 1 year ago

that seems expected since overlay on top of overlay won't work. You can use a volume to store the graph storage inside the first container and make sure its file system is not overlay.

cgruver commented 1 year ago

OK. So, for now is VFS really the only available option for OpenShift container-in-container? It works. It's just slow. ;-)

Also... if that graph storage idea is a possible solution, do you have a how-to or RTFM that you could point me to? I understood the words, but have no idea what you are talking about. :-)

rhatdan commented 1 year ago

No you have to mount a volume on the containers/storage directory to get it to work.

But you will have to run a more privileged container then the default security of OpenShift.

cgruver commented 1 year ago

Thanks guys! We'll stick with VFS for now.

I'll close this and go read Dan's new book. ;-)

StarpTech commented 1 year ago

Hi, can we reopen it? I use podman inside a container and can't make it work with native overlayfs. The Kernel version is 5.12.2.

rhatdan commented 1 year ago

Others have made this work, so this is not a Podman issue. What error are you seeing? Did you setup a volume on top of containers/storage?

StarpTech commented 1 year ago

Hi, I run this setup on my local machine (Kernel v6), and native overlay is not enabled. In production, we use podman inside a firecracker instance with a mounted volume for containers/storage (Kernel 5.12.2). But I can't make it work either locally or in production.

podman info inside my local container

host:
  arch: amd64
  buildahVersion: 1.28.0
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.5-1.fc37.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.5, commit: '
  cpuUtilization:
    idlePercent: 98.2
    systemPercent: 0.44
    userPercent: 1.36
  cpus: 32
  distribution:
    distribution: fedora
    variant: container
    version: "37"
  eventLogger: file
  hostname: a43ec34ce754
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 0
      size: 1
    uidmap:
    - container_id: 0
      host_id: 0
      size: 1
  kernel: 6.0.12-76060006-generic
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 51696779264
  memTotal: 67346718720
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.8-1.fc37.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.8
      commit: 0356bf4aff9a133d655dc13b1d9ac9424706cac4
      rundir: /run/user/0/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
  os: linux
  remoteSocket:
    path: /run/user/0/podman/podman.sock
  security:
    apparmorEnabled: false
    capabilities: CAP_AUDIT_WRITE,CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_MKNOD,CAP_NET_BIND_SERVICE,CAP_NET_RAW,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-8.fc37.x86_64
    version: |-
      slirp4netns version 1.2.0
      commit: 656041d45cfca7a4176f6b7eed9e4fe6c11e8383
      libslirp: 4.7.0
      SLIRP_CONFIG_VERSION_MAX: 4
      libseccomp: 2.5.3
  swapFree: 21474299904
  swapTotal: 21474299904
  uptime: 0h 39m 22.00s
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
  - quay.io
store:
  configFile: /root/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.imagestore: /var/lib/containers/share
    overlay.mountopt: nodev
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 1958315118592
  graphRootUsed: 214738485248
  graphStatus:
    Backing Filesystem: overlayfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/lib/containers/tmp
  imageStore:
    number: 0
  runRoot: /run/containers/storage
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 4.3.1
  Built: 1668178887
  BuiltTime: Fri Nov 11 15:01:27 2022
  GitCommit: ""
  GoVersion: go1.19.2
  Os: linux
  OsArch: linux/amd64
  Version: 4.3.1
StarpTech commented 1 year ago

I was able to fix it with https://github.com/containers/buildah/issues/3666#issuecomment-1351992335