Public bug reported:
LXC 2.x behaved like this when cloning containers: it wrote the new
hostname into /etc/hostname of the new container, and changed /etc/hosts
accordingly. LXC 3.0.0.beta3 no longer does it.
root@zh1cn:/var/lib/lxc# lxc-create -t download -n ubuntu-1604-new -- -d ubuntu
-a amd64 -r xenial
Setting up the GPG keyring
Downloading the image index
Downloading the rootfs
Downloading the metadata
The image cache is now ready
Unpacking the rootfs
---
You just created an Ubuntu container (release=xenial, arch=amd64,
variant=default)
To enable sshd, run: apt-get install openssh-server
For security reason, container images ship without user accounts
and without a root password.
Use lxc-attach or chroot directly into the rootfs to set a root password
or create user accounts.
root@zh1cn:/var/lib/lxc# cat ubuntu-1604-new/config
# Template used to create this container: /usr/share/lxc/templates/lxc-download
# Parameters passed to the template: -d ubuntu -a amd64 -r xenial
# Template script checksum (SHA-1): 5f6cea9c51537459a7ab5f81e2c1eac6a94b5e08
# For additional config options, please look at lxc.container.conf(5)
# Uncomment the following line to support nesting containers:
#lxc.include = /usr/share/lxc/config/nesting.conf
# (Be aware this has security implications)
# Distribution configuration
lxc.include = /usr/share/lxc/config/common.conf
lxc.arch = x86_64
# Container specific configuration
lxc.rootfs.path = dir:/var/lib/lxc/ubuntu-1604-new/rootfs
lxc.uts.name = ubuntu-1604-new
# Network configuration
lxc.net.0.type = veth
lxc.net.0.link = lxcbr0
lxc.net.0.flags = up
lxc.net.0.hwaddr = 00:16:3e:65:85:6b
root@zh1cn:/var/lib/lxc# cat ubuntu-1604-new/rootfs/etc/hostname
ubuntu-1604-new
root@zh1cn:/var/lib/lxc# lxc-copy -n ubuntu-1604-new -N ubuntu-1604-new1
root@zh1cn:/var/lib/lxc# cat ubuntu-1604-new1/config
# Template used to create this container: /usr/share/lxc/templates/lxc-download
# Parameters passed to the template: -d ubuntu -a amd64 -r xenial
# Template script checksum (SHA-1): 5f6cea9c51537459a7ab5f81e2c1eac6a94b5e08
# For additional config options, please look at lxc.container.conf(5)
# Uncomment the following line to support nesting containers:
#lxc.include = /usr/share/lxc/config/nesting.conf
# (Be aware this has security implications)
# Distribution configuration
lxc.include = /usr/share/lxc/config/common.conf
lxc.arch = x86_64
# Container specific configuration
# Network configuration
lxc.net.0.type = veth
lxc.net.0.link = lxcbr0
lxc.net.0.flags = up
lxc.net.0.hwaddr = 00:16:3e:ec:9a:54
lxc.rootfs.path = dir:/var/lib/lxc/ubuntu-1604-new1/rootfs
lxc.uts.name = ubuntu-1604-new1
root@zh1cn:/var/lib/lxc# cat ubuntu-1604-new1/rootfs/etc/hostname
ubuntu-1604-new
I would expect ubuntu-1604-new1 here, or maybe no such file at all (so
that lxc.uts.name applies from the config).
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: lxc 3.0.0~beta3-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.9-0ubuntu1
Architecture: amd64
Date: Tue Mar 27 19:21:21 2018
InstallationDate: Installed on 2018-01-25 (61 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180120)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.UTF-8
TERM=xterm
SHELL=/bin/bash
PATH=(custom, no user)
SourcePackage: lxc
UpgradeStatus: No upgrade log present (probably fresh install)
defaults.conf:
lxc.net.0.type = veth
lxc.net.0.link = lxcbr0
lxc.net.0.flags = up
lxc.net.0.hwaddr = 00:16:3e:xx:xx:xx
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apparmor apport-bug bionic
** Attachment removed: "JournalErrors.txt"
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1759247/+attachment/5092115/+files/JournalErrors.txt
** Attachment removed: "KernLog.txt"
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1759247/+attachment/5092116/+files/KernLog.txt
** Attachment removed: "dnsmasq.conf.txt"
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1759247/+attachment/5092119/+files/dnsmasq.conf.txt
** Attachment removed: "lxcsyslog.txt"
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1759247/+attachment/5092122/+files/lxcsyslog.txt
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https://bugs.launchpad.net/bugs/1759247
Title:
lxc-copy forgets to change /etc/hostname and /etc/hosts
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