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All Execs within the service, will get mounted the same
/tmp and /var/tmp directories, if service is configured with
PrivateTmp=yes. Temporary directories are cleaned up by service
itself in addition to systemd-tmpfiles. Directory which is mounted
as inaccessible is created at runtime in /run/systemd.
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I need this to test half-installed socket-activated python
script, which requires PYTHONPATH and LD_LIBRARY_PATH set.
I assume that other people might find it useful to.
-E VAR passes through VAR from the environment, while
-E VAR=value sets VAR=value.
systemd-activate -E PYTHONPATH=/var/tmp/inst1/usr/lib64/python3.3/site-packages -E LD_LIBRARY_PATH=/var/tmp/inst1/usr/lib -l 2000 python3 -c 'from systemd.daemon import listen_fds; print(listen_fds())'
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Previously we were testing whether /sys/fs/cgroup/systemd/ was a mount
point. This might be problematic however, when the cgroup trees are bind
mounted into a container from the host (which should be absolutely
valid), which might create the impression that the container was running
systemd, but only the host actually is.
Replace this by a check for the existance of the directory
/run/systemd/system/, which should work unconditionally, since /run can
never be a bind mount but *must* be a tmpfs on systemd systems, which is
flushed at boots. This means that data in /run always reflects
information about the current boot, and only of the local container,
which makes it the perfect choice for a check like this.
(As side effect this is nice to Ubuntu people who now use logind with
the systemd cgroup hierarchy, where the old sd_booted() check misdetects
systemd, even though they still run legacy Upstart.)
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First, rename root-fs.target to initrd-root-fs.target to clarify its usage.
Mount units with "x-initrd-rootfs.mount" are now ordered before
initrd-root-fs.target. As we sometimes construct /sysroot mounts in
/etc/fstab in the initrd, we want these to be mounted before the
initrd-root-fs.target is active.
initrd.target can be the default target in the initrd.
(normal startup)
:
:
v
basic.target
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______________________/|
/ |
| sysroot.mount
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| v
| initrd-root-fs.target
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| v
| initrd-parse-etc.service
(custom initrd services) |
| v
| (sysroot-usr.mount and
| various mounts marked
| with fstab option
| x-initrd.mount)
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| v
| initrd-fs.target
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\______________________ |
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v
initrd.target
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v
initrd-cleanup.service
isolates to
initrd-switch-root.target
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v
______________________/|
/ |
| initrd-udevadm-cleanup-db.service
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(custom initrd services) |
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\______________________ |
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v
initrd-switch-root.target
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v
initrd-switch-root.service
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v
switch-root
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journalctl -u unit is not very useful, because it doesn't show
systemd messages about starting, stopping, coredumps, etc,
like systemctl status unit does. Make it show the same
information using the same rules.
If somebody really want to see just messages from by the unit,
it is easy enough to use _SYSTEMD_UNIT=...
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Instead of using local-fs*.target in the initrd, use root-fs.target for
sysroot.mount and initrd-fs.target for /sysroot/usr and friends.
Using local-fs.target would mean to carry over the activated
local-fs.target to the isolated initrd-switch-root.target and thus in
the real root. Having local-fs.target already active after
deserialization causes ordering problems with the real root services and
targets.
We better isolate to targets for initrd-switch-root.target, which are
only available in the initrd.
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The documentation makes it sound like ExecStopPost is only run when
stopping the service with `systemctl stop foo.service`
However, that is not the case, as it also gets run when the service
unexpectedly exists, crashes, or gets SIGKILLed.
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This should help readers of the man or HTML pages know if the documentation
is out of date. An alternative to use a date generated from 'git log' was
considered, but since we try to keep user visible documentation up to date,
showing the project version should be enough.
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They contained the date, which creates a problem with multiarch
packages, since the generated file would be different each time.
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Make sure the pager does not have to buffer an unbounded number of log
messages, by default.
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Since the HTML files are in different directories during build
and on fd.o, links are broken in the build directory. This could
be fixed by moving stuff around, or by modifying the files during
upload, but I think that people do not usually create HTML files
for local browsing, and this is not necessary.
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$ journalctl -be
is what you want :)
https://bugzilla.redhat.com/show_bug.cgi?id=867841
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files
Previously all journal files were owned by "adm". In order to allow
specific users to read the journal files without granting it access to
the full "adm" powers, introduce a new specific group for this.
"systemd-journal" has to be created by the packaging scripts manually at
installation time. It's a good idea to assign a static UID/GID to this
group, since /var/log/journal might be shared across machines via NFS.
This commit also grants read access to the journal files by default to
members of the "wheel" and "adm" groups via file system ACLs, since
these "almost-root" groups should be able to see what's going on on the
system. These ACLs are created by "make install". Packagers probably
need to duplicate this logic in their postinst scripts.
This also adds documentation how to grant access to the journal to
additional users or groups via fs ACLs.
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If coredump support is disabled via --disable-coredump, do not build and
install the systemd-coredumpctl binary and man page.
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The condition was wrong: HAVE_PAM -> ENABLE_LOGIND.
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Errors because of oom conditions or descriptor exhaustion should not
be ignored. We probably cannot recover from those conditions.
Current behaviour wrt. insufficient permissions is described in the
man page. It might make sense in case of user sessions, so I left
it as is.
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Add --user-unit= to make it possible to query for user logs by the name
of the service.
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* python-systemd-reader:
python-systemd: rename Journal to Reader
build-sys: upload python documentation to freedesktop.org
systemd-python: add Journal class for reading journal
python: build html docs using sphinx
journalct: also print Python code in --new-id
python: utilize uuid.UUID in logging
python: add systemd.id128 module
... and 34 other commits
In short: python module systemd.id128 is added, and existing
systemd.journal gains a new class systemd.journal.Reader, which can be
used to iterate over journal entries. Documentation is provided, and
accessible under e.g.
pydoc3 systemd.journal.Reader
or
firefox http://www.freedesktop.org/software/systemd/man/python-systemd/
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Cf. cb96a2c69 and 1ddf879a.
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and sessions
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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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Build instructions:
make
make DESTIDIR=/tmp/... install
make DESTIDIR=/tmp/... sphinx-html sphinx-man sphinx-epub ...
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Occasionally people report problem with reboot/poweroff operations hanging in
the middle. One known cause is when a new transaction to start a unit is
enqueued while the shutdown is going on. The start of the unit conflicts with
the shutdown jobs, so they get cancelled. The failure case can be quite unpleasant,
becase getty and sshd may already be stopped.
Fix it by using irreversible jobs for shutdown (reboot/poweroff/...) actions.
This applies to commands like "reboot", "telinit 6", "systemctl reboot". Should
someone desire to use reversible jobs, they can say "systemctl start reboot.target".`
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Add a new job mode: replace-irreversibly. Jobs enqueued using this mode
cannot be implicitly canceled by later enqueued conflicting jobs.
They can however still be canceled with an explicit "systemctl cancel"
call.
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"systemctl default" should behave identically to "telinit N" (where N is the
corresponding runlevel target number), therefore it should use isolate job mode
too.
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In systemd-bootchart, the disk model information will not be found
unless the root device is specified using `root=/dev/sdxY` on the kernel
line. Just add a note as to why this doesn't happen.
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- reindent with two spaces, otherwise everything is squeezed near
the right margin,
- mark only optional arguments as optional,
- some typos, etc.
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Turning off filtering with --filter is just too confusing.
Config option "Filter" doesn't have to be changed, here
"Filter=yes" already meant to filter.
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