informers | State-of-the-art natural language processing | Natural Language Processing library
kandi X-RAY | informers Summary
kandi X-RAY | informers Summary
:slightly_smiling_face: State-of-the-art natural language processing for Ruby.
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Top functions reviewed by kandi - BETA
- Parses the answers for a given question .
- Group all entities in given text
- Deserialize a new dataset from the dataset .
- returns an array of tokens
- Derives a new array of shape indices from the array .
- Returns true if the given block is found
informers Key Features
informers Examples and Code Snippets
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Trending Discussions on informers
QUESTION
I recently got started with building a Kubernetes operator. I'm using the Fabric8 Java Kubernetes Client but I think my question is more general and also applies to other programming languages and libraries.
When reading through blog posts, documentation or textbooks explaining the operator pattern, I found there seem to be two options to design an operator:
- Using an infinite reconcile loop, in which all corresponding Kubernetes objects are retrieved from the API and then some action is performed.
- Using informers, which are called whenever an observed Kubernetes resource changes.
However, I don't find any source discussion which option should be used in which case. Are there any best practices?
...ANSWER
Answered 2022-Jan-03 at 15:36You should use both.
When using informers, it's possible that the handler gets the events out of order or even not at all. The former means the handler needs to define and reconcile state - this approach is referred to as level-based, as opposed to edge-based. The latter means reconciliation needs to be triggered on a regular interval to account for that possibility.
The way controller-runtime does things, reconciliation is triggered by cluster events (using informers behind the scenes) related to the resources watched by the controller and on a timer. Also, by design, the event is not passed to the reconciler so that it is forced to define and act on a state.
QUESTION
I want to watch Kubernetes pod events for a certain application.
I went with NewSharedInformerFactoryWithOptions. I have added appropriate labels selector, But it is not getting filtered out. As I want to filter it using the label: 'app=nats-box'
Here is the code -
...ANSWER
Answered 2021-Nov-03 at 09:48You can directly provide the label string in the opts.LabelSelector:
QUESTION
I want to run a pod that listens for updates to endpoint lists (I'm not yet ready to adopt the alpha-level feature of endpoint sets, but I'll expand to that eventually.)
I have this code:
...ANSWER
Answered 2021-Jul-08 at 22:00You have created role and rolebinding for eng namespace. However, as per the error message:
QUESTION
I try to install Kubernetes 1.21.1 by kubespray master branch. It is behind proxy server. I filled in http_proxy, https_proxy,no_proxy to crio environment and global environment.
Master 1: 192.168.33.33 Master 2: 192.168.33.34 Master 3: 192.168.33.35
...ANSWER
Answered 2021-Jun-23 at 16:28The problem was allowed IPv6 on localhost. It was listening on IPv6 localhost as you can see below.
QUESTION
I'm attempting to take advantage of Spring Cloud Kubernetes in my Spring Boot-based microservice, namely autoconfiguration and service discovery.
However, I get an error message (Timeout waiting for informers cache to be ready, is the kubernetes service up?) during the initialization, as well as high verbosity, both of which I am unable to find information online to help me pinpoint the cause. Error message and excessive log messages are detailed below. Apologies for the lack of context, but I'm also puzzled!
The application is running within the default service account, which has all the permissions specified in the documentation:
ANSWER
Answered 2021-Apr-18 at 17:01You need to grant neccessary permissions to your spring app, with dependency spring-cloud-starter-kubernetes-fabric8-all that you're using, you will need to grant these permissions: "configmaps", "pods", "services", "endpoints", "secrets".
Below is an example from Spring Cloud document :
QUESTION
I am trying to create a very simple cluster on aws with kops with one master and 2 worker nodes. But after creating, kops validate cluster complains that cluster is not healthy.
cluster created with:
...ANSWER
Answered 2021-Feb-11 at 06:41I don't see anything particularly wrong with the command you are running. However, t2.micro are very small, and may be too small for the cluster to function.
You can have a look at the kops-operator logs why it is not starting. Try kubectl logs kops-controller-xxxx and kubectl describe pod kops-controller-xxx
QUESTION
I am working on a dynamic kubernetes informer to watch over my kubernetes cluster for events and the discovery of all kubernetes components.
But, When I am trying to access the KUBECONFIG via the InClusterConfig method, I am getting the following error:
ANSWER
Answered 2020-Nov-08 at 14:22First of all, thanks to @ShudiptaSharma. His comment helped me in figuring out that I was trying to get the cluster config from outside of the cluster which was leading the program on my local machine (127.0.0.1) from where I am not able to access the cluster.
Further, I tried to figure out how to access the cluster from outside the cluster and found that InClusterConfig is used for running inside cluster use case, when running outside the cluster, something like the following can be used:
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