"--no-hostname" option does not work as expected while building a container using podman #25002
Description
Issue Description
If we try to build a container using podman with option --no-hostname as mentioned in docs https://docs.podman.io/en/latest/markdown/podman-build.1.html , it is expected that /etc/hostname file will not be created but an empty file is created.
Steps to reproduce the issue
Steps to reproduce the issue
- Build a container with
--no-hostnameoption.
podman build --authfile ~/pull-secret.json --no-hostname -t "baseos" -f Containerfile - Run the container
podman run -d --name baseos localhost/baseos:latest - Export and check for /etc/hostname file.
mkdir extracted-baseos
podman export -o baseos.tar baseos
tar -xf baseos.tar -C extracted-baseos
ls extracted-baseos/etc/hostname
My container file contains image from FROM registry.redhat.io/rhel9/rhel-bootc:latest
Describe the results you received
I can see an empty /etc/hostname file is present .
Describe the results you expected
/etc/hostname file is not created.
podman info output
host:
arch: amd64
buildahVersion: 1.33.5
cgroupControllers:
- cpuset
- cpu
- io
- memory
- hugetlb
- pids
- rdma
- misc
cgroupManager: systemd
cgroupVersion: v2
conmon:
package: conmon-2.1.10-1.el9.x86_64
path: /usr/bin/conmon
version: 'conmon version 2.1.10, commit: fb8c4bf50dbc044a338137871b096eea8041a1fa'
cpuUtilization:
idlePercent: 98.12
systemPercent: 0.49
userPercent: 1.4
cpus: 2
databaseBackend: sqlite
distribution:
distribution: rhel
version: "9.4"
eventLogger: journald
freeLocks: 2043
hostname: localhost.localdomain
idMappings:
gidmap: null
uidmap: null
kernel: 5.14.0-427.13.1.el9_4.x86_64
linkmode: dynamic
logDriver: journald
memFree: 569892864
memTotal: 7958319104
networkBackend: netavark
networkBackendInfo:
backend: netavark
dns:
package: aardvark-dns-1.9.0-1.el9.x86_64
path: /usr/libexec/podman/aardvark-dns
version: aardvark-dns 1.9.0
package: netavark-1.10.3-1.el9.x86_64
path: /usr/libexec/podman/netavark
version: netavark 1.10.3
ociRuntime:
name: crun
package: crun-1.14.3-1.el9.x86_64
path: /usr/bin/crun
version: |-
crun version 1.14.3
commit: 1961d211ba98f532ea52d2e80f4c20359f241a98
rundir: /run/user/0/crun
spec: 1.0.0
+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
os: linux
pasta:
executable: /usr/bin/pasta
package: passt-0^20240806.gee36266-2.el9.x86_64
version: |
pasta 0^20240806.gee36266-2.el9.x86_64
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: false
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: true
serviceIsRemote: false
slirp4netns:
executable: /usr/bin/slirp4netns
package: slirp4netns-1.2.3-1.el9.x86_64
version: |-
slirp4netns version 1.2.3
commit: c22fde291bb35b354e6ca44d13be181c76a0a432
libslirp: 4.4.0
SLIRP_CONFIG_VERSION_MAX: 3
libseccomp: 2.5.2
swapFree: 2132975616
swapTotal: 2147479552
uptime: 5h 15m 10.00s (Approximately 0.21 days)
variant: ""
plugins:
authorization: null
log:
- k8s-file
- none
- passthrough
- journald
network:
- bridge
- macvlan
- ipvlan
volume:
- local
registries:
localhost:5000:
Blocked: false
Insecure: true
Location: localhost:5000
MirrorByDigestOnly: false
Mirrors: null
Prefix: localhost:5000
PullFromMirror: ""
search:
- registry.access.redhat.com
- registry.redhat.io
- docker.io
store:
configFile: /etc/containers/storage.conf
containerStore:
number: 5
paused: 0
running: 3
stopped: 2
graphDriverName: overlay
graphOptions:
overlay.mountopt: nodev,metacopy=on
graphRoot: /var/lib/containers/storage
graphRootAllocated: 79385591808
graphRootUsed: 34211041280
graphStatus:
Backing Filesystem: xfs
Native Overlay Diff: "false"
Supports d_type: "true"
Supports shifting: "false"
Supports volatile: "true"
Using metacopy: "true"
imageCopyTmpDir: /var/tmp
imageStore:
number: 12
runRoot: /run/containers/storage
transientStore: false
volumePath: /var/lib/containers/storage/volumes
version:
APIVersion: 4.9.4-dev
Built: 1708422076
BuiltTime: Tue Feb 20 09:41:16 2024
GitCommit: ""
GoVersion: go1.21.7 (Red Hat 1.21.7-1.el9)
Os: linux
OsArch: linux/amd64
Version: 4.9.4-devPodman in a container
No
Privileged Or Rootless
Privileged
Upstream Latest Release
No
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