[podman-remote] version: panic: runtime error: invalid memory address or nil pointer dereference

[Edward5hen]

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

/kind bug

Description
I tried to use the ./podman-remote version feature. The command can show the version information about the client node correctly, but an error encountered for the service node.

Steps to reproduce the issue:

1. ./podman-remote version

Describe the results you received:

[root@localhost bin]# ./podman-remote version
Client:
Version:            1.3.2-dev
RemoteAPI Version:  1
Go Version:         go1.11.7
Git Commit:         ee1383a7b9a1fc7bda96b47fb9a1f38dc5e36d24
Built:              Fri May 17 14:11:45 2019
OS/Arch:            linux/amd64

Service:
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1221561]

goroutine 1 [running]:
github.com/containers/libpod/pkg/adapter.GetRuntime(0x17dcb40, 0xc0000420c0, 0x0, 0xa, 0x0, 0x0)
	/root/go/src/github.com/containers/libpod/pkg/adapter/runtime_remote.go:54 +0x81
main.versionCmd(0x25d3bc0, 0x0, 0x0)
	/root/go/src/github.com/containers/libpod/cmd/podman/version.go:73 +0x476
main.glob..func69(0x2572900, 0x25f6ab0, 0x0, 0x0, 0x0, 0x0)
	/root/go/src/github.com/containers/libpod/cmd/podman/version.go:29 +0x86
github.com/containers/libpod/vendor/github.com/spf13/cobra.(*Command).execute(0x2572900, 0xc00000c070, 0x0, 0x0, 0x2572900, 0xc00000c070)
	/root/go/src/github.com/containers/libpod/vendor/github.com/spf13/cobra/command.go:762 +0x473
github.com/containers/libpod/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x2572dc0, 0xf, 0x25f8660, 0xc000280d00)
	/root/go/src/github.com/containers/libpod/vendor/github.com/spf13/cobra/command.go:852 +0x2fd
github.com/containers/libpod/vendor/github.com/spf13/cobra.(*Command).Execute(0x2572dc0, 0xc0006ea160, 0xc00008a058)
	/root/go/src/github.com/containers/libpod/vendor/github.com/spf13/cobra/command.go:800 +0x2b
main.main()
	/root/go/src/github.com/containers/libpod/cmd/podman/main.go:142 +0x3c

Describe the results you expected:
should show the version information of service end correctly as well.

Output of podman version:
remote node:

[root@localhost bin]# podman version
Version:            1.3.2-dev
RemoteAPI Version:  1
Go Version:         go1.11.7
Git Commit:         ee1383a7b9a1fc7bda96b47fb9a1f38dc5e36d24
Built:              Fri May 17 14:10:44 2019
OS/Arch:            linux/amd64

podman node:

[root@localhost ~]# podman version
Version:            1.3.2-dev
RemoteAPI Version:  1
Go Version:         go1.11.7
Git Commit:         ee1383a7b9a1fc7bda96b47fb9a1f38dc5e36d24
Built:              Fri May 17 14:08:01 2019
OS/Arch:            linux/amd64

Output of podman info --debug:
client node:

[root@localhost bin]# podman info --debug
debug:
  compiler: gc
  git commit: ee1383a7b9a1fc7bda96b47fb9a1f38dc5e36d24
  go version: go1.11.7
  podman version: 1.3.2-dev
host:
  BuildahVersion: 1.8.2
  Conmon:
    package: conmon-1.12.0-12.dev.gitc4f232a.fc29.x86_64
    path: /usr/libexec/crio/conmon
    version: 'conmon version 1.12.0-dev, commit: ed74efc8af284f786e041e8a98a910db4b2c0ec7'
  Distribution:
    distribution: fedora
    version: "29"
  MemFree: 1261670400
  MemTotal: 2089115648
  OCIRuntime:
    package: runc-1.0.0-92.dev.gitc1b8c57.fc29.x86_64
    path: /usr/bin/runc
    version: |-
      runc version 1.0.0-rc7+dev
      commit: 7f820969cc1cc8ea3357b39f2e2e1514f71c6fec
      spec: 1.0.1-dev
  SwapFree: 2146942976
  SwapTotal: 2147479552
  arch: amd64
  cpus: 1
  hostname: localhost.localdomain
  kernel: 4.18.16-300.fc29.x86_64
  os: linux
  rootless: false
  uptime: 216h 6m 28.46s (Approximately 9.00 days)
registries:
  blocked: null
  insecure: null
  search:
  - docker.io
  - registry.fedoraproject.org
  - quay.io
  - registry.access.redhat.com
  - registry.centos.org
store:
  ConfigFile: /etc/containers/storage.conf
  ContainerStore:
    number: 0
  GraphDriverName: overlay
  GraphOptions:
  - overlay.mountopt=nodev
  GraphRoot: /var/lib/containers/storage
  GraphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  ImageStore:
    number: 0
  RunRoot: /var/run/containers/storage
  VolumePath: /var/lib/containers/storage/volumes

podman node:

[root@localhost ~]# podman info --debug
debug:
  compiler: gc
  git commit: ee1383a7b9a1fc7bda96b47fb9a1f38dc5e36d24
  go version: go1.11.7
  podman version: 1.3.2-dev
host:
  BuildahVersion: 1.8.2
  Conmon:
    package: conmon-1.12.0-12.dev.gitc4f232a.fc29.x86_64
    path: /usr/libexec/crio/conmon
    version: 'conmon version 1.12.0-dev, commit: ed74efc8af284f786e041e8a98a910db4b2c0ec7'
  Distribution:
    distribution: fedora
    version: "29"
  MemFree: 1116770304
  MemTotal: 2089115648
  OCIRuntime:
    package: runc-1.0.0-92.dev.gitc1b8c57.fc29.x86_64
    path: /usr/bin/runc
    version: |-
      runc version 1.0.0-rc7+dev
      commit: 7f820969cc1cc8ea3357b39f2e2e1514f71c6fec
      spec: 1.0.1-dev
  SwapFree: 2147205120
  SwapTotal: 2147479552
  arch: amd64
  cpus: 1
  hostname: localhost.localdomain
  kernel: 4.18.16-300.fc29.x86_64
  os: linux
  rootless: false
  uptime: 215h 41m 35.35s (Approximately 8.96 days)
registries:
  blocked: null
  insecure: null
  search:
  - docker.io
  - registry.fedoraproject.org
  - quay.io
  - registry.access.redhat.com
  - registry.centos.org
store:
  ConfigFile: /etc/containers/storage.conf
  ContainerStore:
    number: 0
  GraphDriverName: overlay
  GraphOptions:
  - overlay.mountopt=nodev
  GraphRoot: /var/lib/containers/storage
  GraphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  ImageStore:
    number: 5
  RunRoot: /var/run/containers/storage
  VolumePath: /var/lib/containers/storage/volumes

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

[vrothberg]

Hi @Edward5hen, thanks for taking the time to open this issue. I can reproduce with the latest master as well.