podman remote error: strconv.Atoi: parsing "": invalid syntax

[dustymabe]

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

/kind bug

Description

Parsing of the CONTAINER_HOST environment variable regressed. Previous values that were used no longer work and give an error.

Steps to reproduce the issue:

[coreos-assembler]$ export REMOTEHOST=1.1.1.1
export REMOTEUSER=user
export REMOTEUID=1001                                                                                                export CONTAINER_HOST="ssh://${REMOTEUSER}@${REMOTEHOST}/run/user/${REMOTEUID}/podman/podman.sock"
export CONTAINER_SSHKEY=/srv/sshkey
[coreos-assembler]$ podman --remote info
Error: strconv.Atoi: parsing "": invalid syntax

Describe the results you received:

Error: strconv.Atoi: parsing "": invalid syntax

Describe the results you expected:

No error.

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

This can be worked around by adding the port to the CONTAINER_HOST
variable entry:

CONTAINER_HOST="ssh://${REMOTEUSER}@${REMOTEHOST}:22/run/user/${REMOTEUID}/podman/podman.sock"

Output of podman version:

Client:       Podman Engine
Version:      4.3.0
API Version:  4.3.0
Go Version:   go1.18.7
Built:        Fri Oct 21 08:16:35 2022
OS/Arch:      linux/amd64

Output of podman info:

host:
  arch: amd64
  buildahVersion: 1.28.0
  cgroupControllers:
  - memory
  - pids
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.4-3.fc36.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.4, commit: '
  cpuUtilization:
    idlePercent: 93.81
    systemPercent: 0.82
    userPercent: 5.38
  cpus: 12
  distribution:
    distribution: fedora
    variant: container
    version: "36"
  eventLogger: file
  hostname: 856778bb8ff9
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 5.19.10-100.fc35.x86_64
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 1664892928
  memTotal: 67366096896
  networkBackend: netavark
  ociRuntime:
    name: crun
    package: crun-1.6-2.fc36.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.6
      commit: 18cf2efbb8feb2b2f20e316520e0fd0b6c41ef4d
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    path: /run/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: false
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.2.0-0.2.beta.0.fc36.x86_64
    version: |-
      slirp4netns version 1.2.0-beta.0
      commit: 477db14a24ff1a3de3a705e51ca2c4c1fe3dda64
      libslirp: 4.6.1
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.3
  swapFree: 10659028992
  swapTotal: 12884893696
  uptime: 1056h 34m 28.00s (Approximately 44.00 days)
plugins:
  authorization: null
  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: /usr/share/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mountopt: nodev,metacopy=on
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 607574138880
  graphRootUsed: 560324374528
  graphStatus:
    Backing Filesystem: overlayfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 0
  runRoot: /run/containers/storage
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 4.3.0
  Built: 1666340195
  BuiltTime: Fri Oct 21 08:16:35 2022
  GitCommit: ""
  GoVersion: go1.18.7
  Os: linux
  OsArch: linux/amd64
  Version: 4.3.0

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

podman-4.3.0-2.fc36.x86_64

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

[vrothberg]

Thanks @dustymabe!

@cdoern, looks like we need an additional check to only parse the port if it has been set.

[dustymabe]

FTR I just tried this again and had a similar problem:

[dustymabe@media containers]$ export CONTAINER_HOST="ssh://[email protected]/run/user/1001/podman/podman.sock"
[dustymabe@media containers]$ podman --remote info                       
Cannot connect to Podman. Please verify your connection to the Linux system using `podman system connection list`, or try `podman machine init` 
and `podman machine start` to manage a new Linux VM
Error: unable to connect to Podman socket: Get "http://d/v4.5.0/libpod/_ping": strconv.Atoi: parsing "": invalid syntax
[dustymabe@media containers]$ rpm -q podman
podman-4.5.0-1.fc37.x86_64
[dustymabe@media containers]$ export CONTAINER_HOST="ssh://[email protected]:22/run/user/1001/podman/podman.sock"
[dustymabe@media containers]$ podman --remote info                       
host:         
  arch: arm64             
  buildahVersion: 1.30.0
...
...

It's using podman-4.5.0 which the fix for this should have been in. Am I doing something wrong?

[vrothberg]

Thanks for reaching out! That looks like a parsing error. Would you open a new issue for it?

[dustymabe]

#19162