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Discoverable Partitions Specification
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container
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"ve-" interface name prefix
This way we can recognize the interfaces later on to apply different
host-side configuration to them.
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containers on a 64bit host
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Issues fixed:
* missing words required by grammar
* duplicated or extraneous words
* inappropriate forms (e.g. singular/plural), and declinations
* orthographic misspellings
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Resolve spotted issues related to missing or extraneous commas, dashes.
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This adds the host side of the veth link to the given bridge.
Also refactor the creation of the veth interfaces a bit to set it up
from the host rather than the container. This simplifies the addition
to the bridge, but otherwise the behavior is unchanged.
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into the container
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of this
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or services) as machine with machined
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the container with machined
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namespacing
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Let's always call the security labels the same way:
SMACK: "Smack Label"
SELINUX: "SELinux Security Context"
And the low-level encapsulation is called "seclabel". Now let's hope we
stick to this vocabulary in future, too, and don't mix "label"s and
"security contexts" and so on wildly.
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the API file systems, nothing else
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- As suggested, prefix argument variables with "arg_" how we do this
usually.
- As suggested, don't involve memory allocations when storing command
line arguments.
- Break --help text at 80 chars
- man: explain that this is about SELinux
- don't do unnecessary memory allocations when putting together mount
option string
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This patch adds to new options:
-Z PROCESS_LABEL
This specifies the process label to run on processes run within the container.
-L FILE_LABEL
The file label to assign to memory file systems created within the container.
For example if you wanted to wrap an container with SELinux sandbox labels, you could execute a command line the following
chcon system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -R /srv/container
systemd-nspawn -L system_u:object_r:svirt_sandbox_file_t:s0:c0,c1 -Z system_u:system_r:svirt_lxc_net_t:s0:c0,c1 -D /srv/container /bin/sh
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container to spawn
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Taken from https://bugs.freedesktop.org/show_bug.cgi?id=68369.
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This is a recurring submission and includes corrections to various
issue spotted. I guess I can just skip over reporting ubiquitous
comma placement fixes…
Highligts in this particular commit:
- the "unsigned" type qualifier is completed to form a full type
"unsigned int"
- alphabetic -> lexicographic (that way we automatically define how
numbers get sorted)
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This includes regularly-submitted corrections to comma setting and
orthographical mishaps that appeared in man/ in recent commits.
In this particular commit:
- the usual comma fixes
- expand contractions (this is prose)
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Same as 1e158d273.
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Use proper grammar, word usage, adjective hyphenation, commas,
capitalization, spelling, etc.
To improve readability, some run-on sentences or sentence fragments were
revised.
[zj: remove the space from 'file name', 'host name', and 'time zone'.]
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the user what's going on
Let's try to be helpful to the user and give him a hint what he can do
to make nspawn work with normal OS containers.
https://bugzilla.redhat.com/show_bug.cgi?id=893751
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with nspawn containers
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https://bugs.freedesktop.org/show_bug.cgi?id=64014
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Everything which is an absolute filename marked with <filename></filename>
lands in the index, unless noindex= attribute is present. Should make
it easier for people to find stuff when they are looking at a file on
disk.
Various formatting errors in manpages are fixed, kernel-install(1) is
restored to formatting sanity.
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Apparently nsenter doesn't handle options concatenated together.
I'm pretty sure it worked at one point, but it seems like magic,
since each of those options can take arguments.
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containers there
Containers will now carry a label (normally derived from the root
directory name, but configurable by the user), and the container's root
cgroup is /machine/<label>. This label is called "machine name", and can
cover both containers and VMs (as soon as libvirt also makes use of
/machine/).
libsystemd-login can be used to query the machine name from a process.
This patch also includes numerous clean-ups for the cgroup code.
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Cf. cb96a2c69 and 1ddf879a.
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This reverts commit cb96a2c69a312fb089fef4501650f4fc40a1420b.
It is not a mistake to pass args when -b is specified. They will simply
be passed on to the container's init.
The manpage needs fixing, that's true.
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systemd-nspawn will now print the PID of the child.
An example showing how to enter the container is added
to the man page.
Support for nsenter without an explicit command was
added in https://github.com/karelzak/util-linux/commit/5758069
(post v2.22.2). So this example requires both a new kernel
and the latest util-linux.
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Option listings seemed to be pretty much random, some were short opt,
long opt, others were long opt, short opt. This just makes every option
with a short and long opt that I could find in the order short opt, long
opt, for formatting's sake.
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Archlinux has a similar tool to debbotstrap in the arch-install-scripts
package that will install to a specified directory. This is generally
used for installation, so the -d flag must be passed to tell it to
install to a non-mountpoint directory.
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Due to the brokeness of much of the userspace audit code we cannot
really start too many systems without the audit caps set. To make nspawn
easier to use just add the audit caps by default.
To boot up containers successfully the kernel's auditing needs to be
turned off still (use "audit=0" on the kernel command line), but at
least no manual caps have to be passed anymore.
In the long run auditing will be fixed for containers and ve virtualized
properly at which time it should be safe to enable these caps anyway.
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