This PR aims to optimize the process of updating nodes with
corresponding features. In fact, previously, we were updating nodes
sequentially even though they are independent from each other.
Therefore, we integrated new components: LabelersNodePool which is
responsible for spininng a goroutine whenever there's a request for
updating nodes, and a Workqueue which is responsible for holding nodes names
that should be updated.
Signed-off-by: AhmedGrati <ahmedgrati1999@gmail.com>
It allows NFD-master to be run in active-passive way when running
multiple instances of NFD-master to prevent multiple components
from updating same custom resources.
Signed-off-by: PiotrProkop <pprokop@nvidia.com>
This PR adds a config option for setting the NFD API controller resync period.
The resync period is only activated when the NodeFeature API has been
enabled (with -enable-nodefeature-api).
Signed-off-by: AhmedGrati <ahmedgrati1999@gmail.com>
Mark the -resource-labels flag (and the corresponding resourceLabels
config option) as deprecated. We now support managing extended resources
via NodeFeatureRule objects. This kludge deserves to go, eventually.
Similar to the nfd-worker, in this PR we want to support the
dynamic run-time configurability through a config file for the nfd-master.
We'll use a json or yaml configuration file along with the fsnotify in
order to watch for changes in the config file. As a result, we're
allowing dynamic control of logging params, allowed namespaces,
extended resources, label whitelisting, and denied namespaces.
Signed-off-by: AhmedGrati <ahmedgrati1999@gmail.com>
Document the usage of the NodeFeature CRD API. Also re-organize the
documentation a bit, moving the description of NodeFeatureRule
controller from customization guide to nfd-master usage page.
Deprecate the '-featurerules-controller' command line flag as the name
does not describe the functionality anymore: in practice it controls the
CRD controller handling both NodeFeature and NodeFeatureRule objects.
The patch introduces a duplicate, more generally named, flag
'-crd-controller'. A warning is printed in the log if
'-featurerules-controller' flag is encountered.
Add initial support for handling NodeFeature objects. With this patch
nfd-master watches NodeFeature objects in all namespaces and reacts to
changes in any of these. The node which a certain NodeFeature object
affects is determined by the "nfd.node.kubernetes.io/node-name"
annotation of the object. When a NodeFeature object targeting certain
node is changed, nfd-master needs to process all other objects targeting
the same node, too, because there may be dependencies between them.
Add a new command line flag for selecting between gRPC and NodeFeature
CRD API as the source of feature requests. Enabling NodeFeature API
disables the gRPC interface.
-enable-nodefeature-api enable NodeFeature CRD API for incoming
feature requests, will disable the gRPC
interface (defaults to false)
It is not possible to serve gRPC and watch NodeFeature objects at the
same time. This is deliberate to avoid labeling races e.g. by nfd-worker
sending gRPC requests but NodeFeature objects in the cluster
"overriding" those changes (labels from the gRPC requests will get
overridden when NodeFeature objects are processed).
Introduce two main sections "Deployment" and "Usage" and move "Developer
guide" to the top level, too. In particular, split the huge
deployment-and-usage file into multiple parts under the new main
sections. Move customization guide from "Advanced" to "Usage".
This patch also renames "Advanced" to "Reference" as only that is left
there is reference documentation.
2022-11-03 10:26:56 +02:00
Renamed from docs/advanced/master-commandline-reference.md (Browse further)
