podman: Podman dies during interactive session exec due to disconnect

/kind bug

Description

When running a shell script in the interactive shell with the terminal during exec , podman dies if session is disconnected.

Steps to reproduce the issue: This is just an example, you can

1. Connect to your remote host via ssh. Run bash in the podman e.g. podman exec -it containerx /bin/bash

2. Run loop e.g. while x=1; do ls; sleep 1; done

3. Disconnect ssh session

Describe the results you received: Container dies.
May 29 07:58:26 storage2n1-la sshd[5785]: Received disconnect from 10.10.8.142 port 33360:11: disconnected by user May 29 07:58:26 storage2n1-la sshd[5785]: Disconnected from user root 10.10.8.142 port 33360 May 29 07:58:26 storage2n1-la sshd[5785]: pam_unix(sshd:session): session closed for user root May 29 07:58:26 storage2n1-la ceph-mon-storage2n1-la[6614]: teardown: managing teardown after SIGCHLD May 29 07:58:26 storage2n1-la ceph-mon-storage2n1-la[6614]: teardown: Sending SIGTERM to PID 173 May 29 07:58:26 storage2n1-la ceph-mon-storage2n1-la[6614]: debug 2019-05-29 07:58:26.956 7f393d287700 -1 received signal: Terminated from (PID: 259) UID: 0 May 29 07:58:26 storage2n1-la ceph-mon-storage2n1-la[6614]: debug 2019-05-29 07:58:26.956 7f393d287700 -1 mon.storage2n1-la@0(leader) e1 *** Got Signal Terminated *** May 29 07:58:26 storage2n1-la systemd-logind[1256]: Removed session 524. – Subject: Session 524 has been terminated

Describe the results you expected: Container stays alive with and bash session dies. This works if I just do exec /bin/bash and don’t run loop in that shell.

Additional information you deem important (e.g. issue happens only occasionally): There is an additional problem. The session dies uncleanly. Systemd cannot restart it unless I do podman rm --force <container name>

Output of podman version:

Version:            1.3.2-dev
RemoteAPI Version:  1
Go Version:         go1.10.4
OS/Arch:            linux/amd64

Output of podman info --debug:

debug:
  compiler: gc
  git commit: ""
  go version: go1.10.4
  podman version: 1.3.2-dev
host:
  BuildahVersion: 1.9.0-dev
  Conmon:
    package: 'conmon: /usr/libexec/crio/conmon'
    path: /usr/libexec/crio/conmon
    version: 'conmon version , commit: '
  Distribution:
    distribution: ubuntu
    version: "18.04"
  MemFree: 117319438336
  MemTotal: 134647275520
  OCIRuntime:
    package: 'cri-o-runc: /usr/bin/runc'
    path: /usr/bin/runc
    version: 'runc version spec: 1.0.1-dev'
  SwapFree: 6446641152
  SwapTotal: 6446641152
  arch: amd64
  cpus: 40
  hostname: storage2n1-la
  kernel: 4.18.0-20-generic
  os: linux
  rootless: false
  uptime: 163h 34m 28.88s (Approximately 6.79 days)
registries:
  blocked: null
  insecure: null
  search:
  - docker.io
  - registry.fedoraproject.org
  - registry.access.redhat.com
store:
  ConfigFile: /etc/containers/storage.conf
  ContainerStore:
    number: 8
  GraphDriverName: overlay
  GraphOptions: null
  GraphRoot: /var/lib/containers/storage
  GraphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  ImageStore:
    number: 3
  RunRoot: /var/run/containers/storage
  VolumePath: /var/lib/containers/storage/volumes

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