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% podman-info 1

NAME

podman-info - Display Podman related system information

SYNOPSIS

podman info [options]

podman system info [options]

DESCRIPTION

Displays information pertinent to the host, current storage stats, configured container registries, and build of podman.

OPTIONS

--format, -f=format

Change output format to "json" or a Go template.

Placeholder Info pertaining to ...
.Host ... ...the host on which podman is running
.Plugins ... ...external plugins
.Registries ... ...configured registries
.Store ... ...the storage driver and paths
.Version ... ...podman version

Each of the above branch out into further subfields, more than can reasonably be enumerated in this document.

EXAMPLES

Run podman info for a YAML formatted response:

$ podman info
host:
  arch: amd64
  buildahVersion: 1.23.0
  cgroupControllers: []
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.0.29-2.fc34.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.0.29, commit: '
 cpu_utilization:
   idle_percent: 96.84
   system_percent: 0.71
   user_percent: 2.45
  cpus: 8
  distribution:
    distribution: fedora
    variant: workstation
    version: "34"
  eventLogger: journald
  hostname: localhost.localdomain
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 3267
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 3267
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
  kernel: 5.13.13-200.fc34.x86_64
  linkmode: dynamic
  logDriver: journald
  memFree: 1833385984
  memTotal: 16401895424
  networkBackend: cni
  networkBackendInfo:
    backend: cni
    dns:
      package: podman-plugins-3.4.4-1.fc34.x86_64
      path: /usr/libexec/cni/dnsname
      version: |-
        CNI dnsname plugin
        version: 1.3.1
        commit: unknown
    package: |-
      containernetworking-plugins-1.0.1-1.fc34.x86_64
      podman-plugins-3.4.4-1.fc34.x86_64
    path: /usr/libexec/cni
  ociRuntime:
    name: crun
    package: crun-1.0-1.fc34.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.0
      commit: 139dc6971e2f1d931af520188763e984d6cdfbf8
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  pasta:
    executable: /usr/bin/passt
    package: passt-0^20221116.gace074c-1.fc34.x86_64
    version: |
      passt 0^20221116.gace074c-1.fc34.x86_64
      Copyright Red Hat
      GNU Affero GPL version 3 or later <https://www.gnu.org/licenses/agpl-3.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    path: /run/user/3267/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
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: /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: 15687475200
  swapTotal: 16886259712
  uptime: 47h 15m 9.91s (Approximately 1.96 days)
plugins:
  log:
  - k8s-file
  - none
  - journald
  network:
  - bridge
  - macvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
  - quay.io
store:
  configFile: /home/dwalsh/.config/containers/storage.conf
  containerStore:
    number: 9
    paused: 0
    running: 1
    stopped: 8
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/dwalsh/.local/share/containers/storage
  graphRootAllocated: 510389125120
  graphRootUsed: 129170714624
  graphStatus:
    Backing Filesystem: extfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /home/dwalsh/.local/share/containers/storage/tmp
  imageStore:
    number: 5
  runRoot: /run/user/3267/containers
  transientStore: false
  volumePath: /home/dwalsh/.local/share/containers/storage/volumes
version:
  APIVersion: 4.0.0
  Built: 1631648722
  BuiltTime: Tue Sep 14 15:45:22 2021
  GitCommit: 23677f92dd83e96d2bc8f0acb611865fb8b1a56d
  GoVersion: go1.16.6
  OsArch: linux/amd64
  Version: 4.0.0

Run podman info --format json for a JSON formatted response:

$ podman info --format json
{
  "host": {
    "arch": "amd64",
    "buildahVersion": "1.23.0",
    "cgroupManager": "systemd",
    "cgroupVersion": "v2",
    "cgroupControllers": [],
    "conmon": {
      "package": "conmon-2.0.29-2.fc34.x86_64",
      "path": "/usr/bin/conmon",
      "version": "conmon version 2.0.29, commit: "
    },
    "cpus": 8,
    "distribution": {
      "distribution": "fedora",
      "version": "34"
    },
    "eventLogger": "journald",
    "hostname": "localhost.localdomain",
    "idMappings": {
      "gidmap": [
	{
	  "container_id": 0,
	  "host_id": 3267,
	  "size": 1
	},
	{
	  "container_id": 1,
	  "host_id": 100000,
	  "size": 65536
	}
      ],
      "uidmap": [
	{
	  "container_id": 0,
	  "host_id": 3267,
	  "size": 1
	},
	{
	  "container_id": 1,
	  "host_id": 100000,
	  "size": 65536
	}
      ]
    },
    "kernel": "5.13.13-200.fc34.x86_64",
    "logDriver": "journald",
    "memFree": 1785753600,
    "memTotal": 16401895424,
    "networkBackend": "cni",
    "networkBackendInfo": {
      "backend": "cni",
      "package": "containernetworking-plugins-1.0.1-1.fc34.x86_64\npodman-plugins-3.4.4-1.fc34.x86_64",
      "path": "/usr/libexec/cni",
      "dns": {
        "version": "CNI dnsname plugin\nversion: 1.3.1\ncommit: unknown",
        "package": "podman-plugins-3.4.4-1.fc34.x86_64",
        "path": "/usr/libexec/cni/dnsname"
      }
    },
    "ociRuntime": {
      "name": "crun",
      "package": "crun-1.0-1.fc34.x86_64",
      "path": "/usr/bin/crun",
      "version": "crun version 1.0\ncommit: 139dc6971e2f1d931af520188763e984d6cdfbf8\nspec: 1.0.0\n+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL"
    },
    "os": "linux",
    "remoteSocket": {
      "path": "/run/user/3267/podman/podman.sock"
    },
    "serviceIsRemote": false,
    "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",
      "rootless": true,
      "seccompEnabled": true,
      "seccompProfilePath": "/usr/share/containers/seccomp.json",
      "selinuxEnabled": true
    },
    "slirp4netns": {
      "executable": "/bin/slirp4netns",
      "package": "slirp4netns-1.1.12-2.fc34.x86_64",
      "version": "slirp4netns version 1.1.12\ncommit: 7a104a101aa3278a2152351a082a6df71f57c9a3\nlibslirp: 4.4.0\nSLIRP_CONFIG_VERSION_MAX: 3\nlibseccomp: 2.5.0"
    },
    "pasta": {
      "executable": "/usr/bin/passt",
      "package": "passt-0^20221116.gace074c-1.fc34.x86_64",
      "version": "passt 0^20221116.gace074c-1.fc34.x86_64\nCopyright Red Hat\nGNU Affero GPL version 3 or later \u003chttps://www.gnu.org/licenses/agpl-3.0.html\u003e\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law.\n"
    },
    "swapFree": 15687475200,
    "swapTotal": 16886259712,
    "uptime": "47h 17m 29.75s (Approximately 1.96 days)",
    "linkmode": "dynamic"
  },
  "store": {
    "configFile": "/home/dwalsh/.config/containers/storage.conf",
    "containerStore": {
      "number": 9,
      "paused": 0,
      "running": 1,
      "stopped": 8
    },
    "graphDriverName": "overlay",
    "graphOptions": {

    },
    "graphRoot": "/home/dwalsh/.local/share/containers/storage",
    "graphStatus": {
      "Backing Filesystem": "extfs",
      "Native Overlay Diff": "true",
      "Supports d_type": "true",
      "Using metacopy": "false"
    },
    "imageCopyTmpDir": "/home/dwalsh/.local/share/containers/storage/tmp",
    "imageStore": {
      "number": 5
    },
    "runRoot": "/run/user/3267/containers",
    "volumePath": "/home/dwalsh/.local/share/containers/storage/volumes",
    "transientStore": false
  },
  "registries": {
    "search": [
  "registry.fedoraproject.org",
  "registry.access.redhat.com",
  "docker.io",
  "quay.io"
]
  },
  "plugins": {
    "volume": [
      "local"
    ],
    "network": [
      "bridge",
      "macvlan"
    ],
    "log": [
      "k8s-file",
      "none",
      "journald"
    ]
  },
  "version": {
    "APIVersion": "4.0.0",
    "Version": "4.0.0",
    "GoVersion": "go1.16.6",
    "GitCommit": "23677f92dd83e96d2bc8f0acb611865fb8b1a56d",
    "BuiltTime": "Tue Sep 14 15:45:22 2021",
    "Built": 1631648722,
    "OsArch": "linux/amd64"
  }
}

Extracting the list of container registries with a Go template

If shell completion is enabled, type podman info --format={{. and then press [TAB] twice.

$ podman info --format={{.
{{.Host.         {{.Plugins.      {{.Registries}}  {{.Store.        {{.Version.

Press R [TAB] [ENTER] to print the registries information.

$ podman info -f {{.Registries}}
map[search:[registry.fedoraproject.org registry.access.redhat.com docker.io quay.io]]
$

The output still contains a map and an array. The map value can be extracted with

$ podman info -f '{{index .Registries "search"}}'
[registry.fedoraproject.org registry.access.redhat.com docker.io quay.io]

The array can be printed as one entry per line

$ podman info -f '{{range index .Registries "search"}}{{.}}\n{{end}}'
registry.fedoraproject.org
registry.access.redhat.com
docker.io
quay.io

Extracting the list of container registries from JSON with jq

The command-line JSON processor jq can be used to extract the list of container registries.

$ podman info -f json | jq '.registries["search"]'
[
  "registry.fedoraproject.org",
  "registry.access.redhat.com",
  "docker.io",
  "quay.io"
]

The array can be printed as one entry per line

$ podman info -f json | jq -r '.registries["search"] | .[]'
registry.fedoraproject.org
registry.access.redhat.com
docker.io
quay.io

Note, the Go template struct fields start with upper case. When running podman info or podman info --format=json, the same names start with lower case.

SEE ALSO

podman(1), containers-registries.conf(5), containers-storage.conf(5)