unable to replace "host-gateway" of host entry "host.docker.internal:host-gateway"

[jjcasmar]

Issue Description

In my compose file I have

extra_hosts:
  - host.docker.internal:host-gateway

Two days ago, I was able to start the container in the compose file with

podman compose up -d

Now it doesn't work anymore.

Steps to reproduce the issue

add the extra_hosts entries in the compose file
run podman compose up -d

Describe the results you received

Error: failed to create new hosts file: unable to replace "host-gateway" of host entry "host.docker.internal:host-gateway": host containers internal IP address is empty

Describe the results you expected

Container should be able to start, and in /etc/hosts I should see the extra host.

podman info output

host:
  arch: amd64
  buildahVersion: 1.36.0
  cgroupControllers:
  - cpu
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: /usr/bin/conmon is owned by conmon 1:2.1.12-1
    path: /usr/bin/conmon
    version: 'conmon version 2.1.12, commit: e8896631295ccb0bfdda4284f1751be19b483264'
  cpuUtilization:
    idlePercent: 97.94
    systemPercent: 0.98
    userPercent: 1.08
  cpus: 24
  databaseBackend: boltdb
  distribution:
    distribution: arch
    version: unknown
  eventLogger: journald
  freeLocks: 1830
  hostname: archlinux
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 60496
      size: 1
    - container_id: 1
      host_id: 524288
      size: 100001
    uidmap:
    - container_id: 0
      host_id: 60496
      size: 1
    - container_id: 1
      host_id: 524288
      size: 100001
  kernel: 6.9.3-arch1-1
  linkmode: dynamic
  logDriver: journald
  memFree: 50727735296
  memTotal: 67339476992
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: /usr/lib/podman/aardvark-dns is owned by aardvark-dns 1.11.0-1
      path: /usr/lib/podman/aardvark-dns
      version: aardvark-dns 1.11.0
    package: /usr/lib/podman/netavark is owned by netavark 1.11.0-1
    path: /usr/lib/podman/netavark
    version: netavark 1.11.0
  ociRuntime:
    name: crun
    package: /usr/bin/crun is owned by crun 1.15-1
    path: /usr/bin/crun
    version: |-
      crun version 1.15
      commit: e6eacaf4034e84185fd8780ac9262bbf57082278
      rundir: /run/user/60496/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  pasta:
    executable: /usr/bin/pasta
    package: /usr/bin/pasta is owned by passt 2024_05_23.765eb0b-1
    version: |
      pasta 2024_05_23.765eb0b
      Copyright Red Hat
      GNU General Public License, version 2 or later
        <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    exists: true
    path: /run/user/60496/podman/podman.sock
  rootlessNetworkCmd: pasta
  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: /etc/containers/seccomp.json
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: ""
    package: ""
    version: ""
  swapFree: 0
  swapTotal: 0
  uptime: 0h 13m 28.00s
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  docker.io:
    Blocked: false
    Insecure: false
    Location: docker.io
    MirrorByDigestOnly: false
    Mirrors: null
    Prefix: docker.io
    PullFromMirror: ""
  search:
  - docker.io
store:
  configFile: /home/jjcasmar/.config/containers/storage.conf
  containerStore:
    number: 26
    paused: 0
    running: 22
    stopped: 4
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/jjcasmar/.local/share/containers/storage
  graphRootAllocated: 409161875456
  graphRootUsed: 321250717696
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Supports shifting: "false"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 112
  runRoot: /run/user/60496/containers
  transientStore: false
  volumePath: /home/jjcasmar/.local/share/containers/storage/volumes
version:
  APIVersion: 5.1.0
  Built: 1717105841
  BuiltTime: Thu May 30 23:50:41 2024
  GitCommit: 4e9486dbc63c24bfe109066abbb54d5d8dc2489e-dirty
  GoVersion: go1.22.3
  Os: linux
  OsArch: linux/amd64
  Version: 5.1.0

Podman in a container

No

Privileged Or Rootless

Rootless

Upstream Latest Release

Yes

Additional environment details

Additional environment details

Additional information

Additional information like issue happens only occasionally or issue happens with a particular architecture or on a particular setting

[Luap99]

see #22653
The previous entry was just wrong so it was broken before already.
For now unless you have a second ip podman can set a host.containers.internal entry as the only ip is already used by pasta inside the namespace.

Long term we might want to get some specific mapping from pasta so we can reach the host still via a different ip
#19213