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David Rheinsberg e6b77ac7df util/fscache: avoid RENAME_NOREPLACE in _atomic_file() 
The `RENAME_NOREPLACE` option is not available on NFS. Avoid using it
in _atomic_file() to allow NFS backed storage.

If the caller allows replacing the destination entry, we simply use the
original `os.rename()` system call. This will unconditionally replace
the destination on all file-systems.

If the caller requests `no-replace`, we cannot use `os.rename()`.
Instead, we use `os.link()` to create a new hard-link on the
destination. This will always fail if the destination already exists.
We then rely on the cleanup-path to unlink the original temporary
entry.

This will require adjustments in future maintenance tasks on the cache,
since they need to be aware that entries can be hardlinked temporarily.
However, we already consider `uuid-*` entries in the object-store to be
temporary and unaccounted for similar reasons, so this doesn't even
break our cache-maintenance ideas.

Signed-off-by: David Rheinsberg <david.rheinsberg@gmail.com>
2022-12-20 16:56:32 +01:00
.devcontainer devcontainer: include packit, boto3 & more tools 2021-08-17 10:42:03 +02:00
.github ci: update to containers/privdocker@552e30c 2022-11-03 12:59:52 +01:00
assemblers osbuild: run isort on all files 2022-09-12 13:32:51 +02:00
data devices: add custom udev rule inhibitor mechanism 2021-12-09 00:44:21 +00:00
devices devices/lvm2.lv: use new ensure_device_node helper 2022-11-22 18:28:38 +01:00
docs osbuid: integrate FsCache into ObjectStore 2022-12-09 12:03:40 +01:00
inputs test/isort: apply diff to full tree 2022-09-23 12:08:10 +02:00
mounts mounts: use the options object for mountopts 2022-11-30 14:21:10 +01:00
osbuild util/fscache: avoid RENAME_NOREPLACE in _atomic_file() 2022-12-20 16:56:32 +01:00
runners runners: add AutoSD runner 2022-12-15 16:26:02 +01:00
schemas schemas/osbuild2: mark version as required 2022-07-25 16:01:48 +02:00
schutzbot schutzbot: set the cache size for the correct store 2022-12-09 16:44:58 +01:00
selinux docs: document osbuild and selinux integration 2021-10-01 11:02:32 +02:00
sources sources/ostree: set contenturl when pulling from remote 2022-10-14 12:04:54 +02:00
stages ostree.config: add aboot (Android) bootloader config option 2022-12-15 11:27:02 +00:00
test util/fscache: provide store_tree() helper 2022-12-20 16:56:32 +01:00
tools osbuild-mpp: recognize manifest without mediaType and with manifests fields as a list 2022-11-08 11:25:25 +01:00
.editorconfig editorconfig: include markdown specifications 2020-10-23 16:29:50 +02:00
.git-blame-ignore-revs git: ignore isort commit 2022-09-12 13:32:51 +02:00
.gitignore git: ignore common virtual env locations 2022-06-30 10:34:27 +02:00
.gitlab-ci.yml ci: deactivate manifest test for rhel/centos9 2022-11-29 11:49:51 +01:00
.mypy.ini osbuild: fix optional-types 2022-07-13 17:31:37 +02:00
.packit.yaml ci(packit): Use YAML Merge Key syntax to reduce duplicity 2022-10-18 13:04:03 +02:00
LICENSE Revert "Fill in the license template" 2019-11-18 12:23:10 +01:00
Makefile main: add a --version argument 2022-07-06 09:57:24 +02:00
osbuild.spec Post release version bump 2022-12-07 08:15:17 +00:00
README.md Add support for installing containers in images 2022-02-10 14:43:17 +01:00
requirements.txt Makefile: use pytest for nicer output 2020-12-04 18:24:48 +01:00
samples samples: replace with symlink to test data 2021-07-12 18:44:50 +02:00
Schutzfile schutzfile: update manifest-db ref 2022-12-05 2022-12-05 14:47:46 +01:00
setup.cfg build: extend pylint suppressions 2022-09-13 16:21:14 +02:00
setup.py Post release version bump 2022-12-07 08:15:17 +00:00

README.md

OSBuild

Build-Pipelines for Operating System Artifacts

OSBuild is a pipeline-based build system for operating system artifacts. It defines a universal pipeline description and a build system to execute them, producing artifacts like operating system images, working towards an image build pipeline that is more comprehensible, reproducible, and extendable.

See the osbuild(1) man-page for details on how to run osbuild, the definition of the pipeline description, and more.

Project

Contributing

Please refer to the developer guide to learn about our workflow, code style and more.

Requirements

The requirements for this project are:

  • bubblewrap >= 0.4.0
  • python >= 3.7

Additionally, the built-in stages require:

  • bash >= 5.0
  • coreutils >= 8.31
  • curl >= 7.68
  • qemu-img >= 4.2.0
  • rpm >= 4.15
  • tar >= 1.32
  • util-linux >= 235
  • skopeo

At build-time, the following software is required:

  • python-docutils >= 0.13
  • pkg-config >= 0.29

Testing requires additional software:

  • pytest

Install

Installing osbuild requires to not only install the osbuild module, but also additional artifacts such as tools (i.e: osbuild-mpp) sources, stages, schemas and SELinux policies.

For this reason, doing an installation from source is not trivial and the easier way to install it is to create the set of RPMs that contain all these components.

This can be done with the rpm make target, i.e:

make rpm

A set of RPMs will be created in the ./rpmbuild/RPMS/noarch/ directory and can be installed in the system using the distribution package manager, i.e:

sudo dnf install ./rpmbuild/RPMS/noarch/*.rpm

Repository:

License:

  • Apache-2.0
  • See LICENSE file for details.