Support GO Template

[slimjim2234]

/kind bug

Description

Just like closed issues #2688 and #2671, but with the "info" option.

Steps to reproduce the issue:

1. kubeadm init --apiserver-advertise-address=192.168.122.1 --pod-network-cidr=192.168.123.0/24

Describe the results you received:

error execution phase preflight: [preflight] Some fatal errors occurred:
        [ERROR SystemVerification]: failed executing "docker info --format '{{json .}}'"\noutput: Error: template parsing error: template: image:1: function "json" not defined
\nerror: exit status 125

Describe the results you expected:

docker info --format '{{ json .}}'
and
podman info --format '{{ json .}}'
should produce json output

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

In the above kubeadm error, podman is symlinked to docker.

Output of podman version:

Version:            1.6.2
RemoteAPI Version:  1
Go Version:         go1.13.3
OS/Arch:            linux/amd64

Output of podman info --debug:

debug:
  compiler: gc
  git commit: ""
  go version: go1.13.3
  podman version: 1.6.2
host:
  BuildahVersion: 1.11.3
  CgroupVersion: v1
  Conmon:
    package: Unknown
    path: /usr/bin/conmon
    version: 'conmon version 2.0.1, commit: 4dc8bcfec41e10ca760c8e2089474c2843dfd066'
  Distribution:
    distribution: arch
    version: unknown
  IDMappings:
    gidmap:
    - container_id: 0
      host_id: 976
      size: 1
    uidmap:
    - container_id: 0
      host_id: 976
      size: 1
  MemFree: 45038505984
  MemTotal: 50620407808
  OCIRuntime:
    name: runc
    package: Unknown
    path: /usr/bin/runc
    version: |-
      runc version 1.0.0-rc9
      commit: d736ef14f0288d6993a1845745d6756cfc9ddd5a
      spec: 1.0.1-dev
  SwapFree: 0
  SwapTotal: 0
  arch: amd64
  cpus: 8
  eventlogger: journald
  hostname: megachamp
  kernel: 5.3.7-arch1-1-ARCH
  os: linux
  rootless: true
  slirp4netns:
    Executable: /usr/bin/slirp4netns
    Package: Unknown
    Executable: /usr/bin/slirp4netns
    Package: Unknown
    Version: |-
      slirp4netns version 0.4.1
      commit: 4d38845e2e311b684fc8d1c775c725bfcd5ddc27
  uptime: 72h 12m 52.05s (Approximately 3.00 days)
registries:
  blocked: null
  insecure: null
  search:
  - docker.io
  - registry.fedoraproject.org
  - quay.io
  - registry.access.redhat.com
  - registry.centos.org
store:
  ConfigFile: /home/nope/.config/containers/storage.conf
  ContainerStore:
    number: 0
  GraphDriverName: vfs
  GraphOptions: {}
  GraphRoot: /home/nope/.local/share/containers/storage
  GraphStatus: {}
  ImageStore:
    number: 0
  RunRoot: /run/user/976
  VolumePath: /home/nope/.local/share/containers/storage/volumes

Package info (e.g. output of rpm -q podman or apt list podman):

pacman -S podman

[rhatdan]

@slimjim2234 Would you like to take a stab at this?

[slimjim2234]

@slimjim2234 Would you like to take a stab at this?

Certainly, took a stab at it.

[github-actions]

This issue had no activity for 30 days. In the absence of activity or the "do-not-close" label, the issue will be automatically closed within 7 days.

[mheon]

I believe we can close this as #4408 is merged