Open
Description
openedon Aug 31, 2024
Issue Description
here is a difference in podman docker emulation api.
In the crun config, swappiness is unset, which means this value can be return to null in podman inspect.
Also, on system with cgoupv2 changing swappiness does not make any sense, so it should be unset and give a null.
Steps to reproduce the issue
Steps to reproduce the issue
- create any containers with docker then inspect it
- create any containers with podman then inspect it
- compare the dirrerence
Describe the results you received
podman inspect gives MemorySwappiness to 0 instead of null .
Describe the results you expected
this value should be null like docker inspect
podman info output
host:
arch: amd64
buildahVersion: 1.37.2
cgroupControllers:
- cpuset
- cpu
- io
- memory
- hugetlb
- pids
- rdma
- misc
cgroupManager: systemd
cgroupVersion: v2
conmon:
package: conmon-2.1.10-1.fc40.x86_64
path: /usr/bin/conmon
version: 'conmon version 2.1.10, commit: '
cpuUtilization:
idlePercent: 97.31
systemPercent: 0.86
userPercent: 1.82
cpus: 32
databaseBackend: boltdb
distribution:
distribution: fedora
version: "40"
eventLogger: journald
freeLocks: 2046
hostname: gzz-desktop
idMappings:
gidmap: null
uidmap: null
kernel: 6.10.6-200.fc40.x86_64
linkmode: dynamic
logDriver: journald
memFree: 40367509504
memTotal: 66913804288
networkBackend: netavark
networkBackendInfo:
backend: netavark
dns:
package: aardvark-dns-1.12.1-1.fc40.x86_64
path: /usr/libexec/podman/aardvark-dns
version: aardvark-dns 1.12.1
package: netavark-1.12.1-1.fc40.x86_64
path: /usr/libexec/podman/netavark
version: netavark 1.12.1
ociRuntime:
name: crun
package: crun-1.15-1.fc40.x86_64
path: /usr/bin/crun
version: |-
crun version 1.15
commit: e6eacaf4034e84185fd8780ac9262bbf57082278
rundir: /run/crun
spec: 1.0.0
+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
os: linux
pasta:
executable: /usr/bin/pasta
package: passt-0^20240821.g1d6142f-1.fc40.x86_64
version: |
pasta 0^20240821.g1d6142f-1.fc40.x86_64
Copyright Red Hat
GNU General Public License, version 2 or later
<https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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: true
slirp4netns:
executable: /usr/bin/slirp4netns
package: slirp4netns-1.2.2-2.fc40.x86_64
version: |-
slirp4netns version 1.2.2
commit: 0ee2d87523e906518d34a6b423271e4826f71faf
libslirp: 4.7.0
SLIRP_CONFIG_VERSION_MAX: 4
libseccomp: 2.5.5
swapFree: 8589930496
swapTotal: 8589930496
uptime: 0h 22m 30.00s
variant: ""
plugins:
authorization: null
log:
- k8s-file
- none
- passthrough
- journald
network:
- bridge
- macvlan
- ipvlan
volume:
- local
registries:
store:
configFile: /usr/share/containers/storage.conf
containerStore:
number: 2
paused: 0
running: 2
stopped: 0
graphDriverName: overlay
graphOptions:
overlay.imagestore: /usr/lib/containers/storage
overlay.mountopt: nodev,metacopy=on
graphRoot: /var/lib/containers/storage
graphRootAllocated: 1023709442048
graphRootUsed: 37784383488
graphStatus:
Backing Filesystem: xfs
Native Overlay Diff: "false"
Supports d_type: "true"
Supports shifting: "true"
Supports volatile: "true"
Using metacopy: "true"
imageCopyTmpDir: /var/tmp
imageStore:
number: 31
runRoot: /run/containers/storage
transientStore: false
volumePath: /var/lib/containers/storage/volumes
version:
APIVersion: 5.2.2
Built: 1724198400
BuiltTime: Wed Aug 21 08:00:00 2024
GitCommit: ""
GoVersion: go1.22.6
Os: linux
OsArch: linux/amd64
Version: 5.2.2Podman in a container
No
Privileged Or Rootless
Privileged
Upstream Latest Release
Yes
Additional environment details
No response
Additional information
after checking difference between docker inspect and podman inspect I found there is more fields that docker gives null but podman gives empty value (0,empty array,etc.)
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