Server OS can't be queried same way as docker

[devlead]

/kind feature

Description

With docker one can query server os using version command docker version -f {{.Server.Os}}, will return linux or windows based on if the docker engine is configured to build Linux or Windows containers. This has often been used in scripts to determine if Linux or Windows containers should be built.

Steps to reproduce the issue:

1. podman version -f {{.Server.Os}}

Describe the results you received:

- Error: template: version:1:2: executing "version" at <.Os>: can't evaluate field Os in type *define.Version

Describe the results you expected:

linux

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

Output of podman version:

Client:       Podman Engine
Version:      4.0.2
API Version:  4.0.2
Go Version:   go1.18rc1
Git Commit:   342c8259381b63296e96ad29519bd4b9c7afbf97
Built:        Wed Mar  2 21:28:30 2022
OS/Arch:      windows/amd64

Server:       Podman Engine
Version:      4.0.2
API Version:  4.0.2
Go Version:   go1.16.14

Output of podman info --debug:

host:
  arch: amd64
  buildahVersion: 1.24.1
  cgroupControllers: []
  cgroupManager: cgroupfs
  cgroupVersion: v1
  conmon:
    package: conmon-2.1.0-2.fc35.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.0, commit: '
  cpus: 8
  distribution:
    distribution: fedora
    variant: container
    version: "35"
  eventLogger: file
  hostname: 3M4LRT2
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1000
      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: 5.10.60.1-microsoft-standard-WSL2
  linkmode: dynamic
  logDriver: journald
  memFree: 7727538176
  memTotal: 8227569664
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.4.3-1.fc35.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.4.3
      commit: 61c9600d1335127eba65632731e2d72bc3f0b9e8
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    exists: true
    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: false
  serviceIsRemote: true
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.1.12-2.fc35.x86_64
    version: |-
      slirp4netns version 1.1.12
      commit: 7a104a101aa3278a2152351a082a6df71f57c9a3
      libslirp: 4.6.1
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.3
  swapFree: 2147483648
  swapTotal: 2147483648
  uptime: 11m 31.86s
plugins:
  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: /home/user/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mount_program:
      Executable: /usr/bin/fuse-overlayfs
      Package: fuse-overlayfs-1.7.1-2.fc35.x86_64
      Version: |-
        fusermount3 version: 3.10.5
        fuse-overlayfs: version 1.7.1
        FUSE library version 3.10.5
        using FUSE kernel interface version 7.31
  graphRoot: /home/user/.local/share/containers/storage
  graphStatus:
    Backing Filesystem: extfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 0
  runRoot: /run/user/1000/containers
  volumePath: /home/user/.local/share/containers/storage/volumes
version:
  APIVersion: 4.0.2
  Built: 1646943965
  BuiltTime: Thu Mar 10 21:26:05 2022
  GitCommit: ""
  GoVersion: go1.16.14
  OsArch: linux/amd64
  Version: 4.0.2

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

Yes

Additional environment details (AWS, VirtualBox, physical, etc.):

Physical, Window 11