Without pipelining every task copies the module to the node over sftp, then makes it executable, runs it and removes it, each a separate ssh operation. With pipelining the module is fed to the interpreter over the ssh session, so a task takes one operation and nothing is written to the node's temporary directory. Pipelining breaks become through sudo with requiretty, which rarely applies here: plays connect as root and drop become unless become_user is set. Setting ANSIBLE_PIPELINING or ANSIBLE_SSH_PIPELINING still overrides this default.
Confluent
Confluent is a software package to handle essential bootstrap and operation of scale-out server configurations. It supports stateful and stateless deployments for various operating systems.
Check this page for a more detailed list of features.
Confluent is the modern successor of xCAT. If you're coming from xCAT, check out this comparison.
Documentation
Confluent documentation is hosted on: https://xcat2.github.io/confluent-docs/
Download
Get the latest version from: https://xcat2.github.io/confluent-docs/downloads/
Check release notes on: https://xcat2.github.io/confluent-docs/release_notes/
Open Source License
Confluent is made available under the Apache 2.0 license: https://opensource.org/license/apache-2-0
Developers
Want to help? Submit a Pull Request.
Versioning and releases
The top-level VERSION file names the release the current branch is working toward. Build scripts
call ./mkversion, which turns it into the version stamped on packages: the tag itself on a release
tag (4.0.1), otherwise a development version (4.0.1~dev5+gdeadbee). Packages sort it before the
release it leads up to. Only setup.py gets the PEP 440 spelling, 4.0.1.dev5+gdeadbee.
mkversion also derives a version from the newest tag reachable from HEAD and uses whichever is
higher, so forgetting to bump VERSION after tagging the current branch cannot walk the version
backwards. Staying ahead of tags on other branches is what VERSION itself is for: patch releases
are tagged on release branches, which master never sees.
Cutting a new series:
- Land the release commit on master and tag
X.Y.0there. - Create branch
X.Yfrom that tag; it inheritsVERSION=X.Y.0. - Only then bump
VERSIONon master. Doing it before step 2 leaves the release branch on the wrong series.
Patch releases land on branch X.Y and are tagged X.Y.Z there; no VERSION edit is needed.
Nightly builds
.github/workflows/nightly.yml builds the rpms (EL9, EL10, SUSE 16) and debs (Ubuntu 24.04, 26.04)
for x86_64 and aarch64 every night that something changed, installs each set on a clean container,
and publishes them as the nightly pre-release. Every bundle there holds all packages for one
target and an INSTALL.txt. Pull requests that touch the packaging run the same build and tests
without publishing. Genesis is not built there yet.