whereabouts | A CNI IPAM plugin that assigns IP addresses cluster-wide | TCP library
kandi X-RAY | whereabouts Summary
kandi X-RAY | whereabouts Summary
CNI (Container Network Interface) plugins typically have a configuration element named ipam. CNI IPAM plugins can assign IP addresses, and Whereabouts assigns IP addresses within a range -- without having to use a DHCP server. Whereabouts takes an address range, like 192.168.2.0/24 in CIDR notation, and will assign IP addresses within that range. In this case, it will assign IP addresses from 192.168.2.1 to 192.168.2.255. When an IP address is assigned to a pod, Whereabouts tracks that IP address in a data store for the lifetime of that pod. When the pod is removed, Whereabouts then frees the address and makes it available to assign on subsequent requests. Whereabouts always assigns the lowest value address that's available in the range. You can also specify ranges to exclude from assignment, so if for example you'd like to assign IP addresses within the range 192.168.2.0/24, you can exclude IP addresses within it by adding them to an exclude list. For example, if you decide to exclude the range 192.168.2.0/28, the first IP address assigned in the range will be 192.168.2.16. In respect to the old equipment out there that doesn't think that IP addresses that end in .0 are valid -- Whereabouts will not assign addresses that end in .0. The original inspiration for Whereabouts comes from when users have tried to use the samples from Multus CNI (a CNI plugin that attaches multiple network interfaces to your pods), which includes examples that use the host-local plugin, and they find that it's... Almost the right thing. Sometimes people even assume it'll work across nodes -- and then wind up with IP address collisions. Whereabouts is designed with Kubernetes in mind, but, isn't limited to use in just Kubernetes. To track which IP addresses are in use between nodes, Whereabouts uses etcd or a Kubernetes Custom Resource as a backend. The goal is to make Whereabouts more flexible and to use additional storage backends, we welcome any contributions towards this goal. Issues and PRs are welcome! Some of the known limitations are found at the bottom of the README.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- LoadIPAMConfig loads the ipam configuration file
- IPManagementKubernetesUpdate updates IP address
- IPManagementEtcd creates an ip address pool
- IPManagement creates a new IP management interface
- IterateForAssignment iterates over the given range and iterates over the resolver .
- cmdAdd adds a new IP address to a pod
- configureStatic is used to configure static IP
- newLeaderElector creates a new leader election .
- handle environment variables
- GetIPRange returns the host and IP range of the given IP range
whereabouts Key Features
whereabouts Examples and Code Snippets
Community Discussions
Trending Discussions on whereabouts
QUESTION
I want to create my own custom package for System.Data.SQLite. I have the all the dll's I need but I'm unsure how to structure it and create the nuspec for it. Current folder structure of the dll's is this, whereabouts would I put the different interop dlls to have them copied correctly to the output and what do I need to add to the nuspec?
...ANSWER
Answered 2021-Apr-15 at 01:47SQLite.Interop.dll does not act as a lib assembly dll. That is not its role. And it should be a content file rather than a assembly dll. So it should not be packed as lib.
To create such custom nuget package, you should first pack System.Data.SQLite.dll, System.Data.SQLite.Linq.dll, System.Data.SQLite.EF6.dll as lib. See this document.
and then pack SQLite.Interop.dll as content.
Also, to make the content file be copied into the output folder of the main project when you install the nuget package, you have to use a .props or targets file to realize it.
1) create a file called .props into your class library project. And it should be the same name as your nuget package. In your side, it should be named as Custom.SQLite.Name.props. Otherwise, it will not work.
And then add these into the file:
QUESTION
I've looked at similar cases but they are not the same.
I've got a pandas frame. Each row is a study. In a particular column, I need to find out how many times a specific word, i.e. bed, comes after another specific word, i.e. home.
I need to find out how many cases in the pandas frame this situation happens.
I've seen questions that ask about extracting whatever text comes after a specific word but not a case like this. I'm assuming this might be regex but can't figure out how to do it.
My code to create a sample dataframe.
...ANSWER
Answered 2021-Mar-07 at 02:32To find the number of times that "bed" appears after "home" in the whereabouts column, use the following code.
The function second_after returns True if
the input text contains the second word after the first word (rfind
finds the last second word). This can be applied to the whereabouts column
of the dataframe, generating a new column results for easy cross-checking.
Finally, the method .sum is applied to the results column, counting all the
True values ("like 1") and not False values ("like 0"):
QUESTION
I have issues understanding this Perl module, I am very new to Perl, where main logic is within the ExternalLibrary::registerJob and it is executed as listed below, the mentioned ExecutionBlock is a black box for me and all I do know I can list several unitFunc() within tasksequence.
ANSWER
Answered 2021-Feb-20 at 08:37If I understand correctly, the question can be summarized as follows:
I have an array of rows
@res. Each row is a reference to a hash with aJOB_NAMEelement.I want to do the following such that each row results in a task with
jobNamegiven by the value of the row'sJOB_NAMEelement:
QUESTION
I have a problem where I have a Kubernetes cluster with two worker nodes, and one master. Let's lab them W1, W2, and M. I have a deployment that creates a set of CentOS7 pods, some on each worker. I use Multus so that there is an extra net1 interface on each pod that is mapped to eth1 on the workers. All the pods have net1 connected to the same macvlan named ‘up-net’.
On both W1 and W2 I can ping between pods that run on the same node, but a pod in W1 can't ping another one in W2 and vise-versa. Pinging over the standard kube network on eth0 works in all cases. It’s just the macvlan that has this problem.
That's the problem in short. So let me now describe the setup we're using in more detail.
We have a lab with 3 physical servers, on which we've deployed Kolla (which is Openstack installed on Kubernets). In this Openstack installation, I'm again trying to set up a Kubernetes installation were the master and worker nodes are hosted in Openstack virtual machines (i.e. W1, W2, M) are VM's running in Openstack. This means that we have three layers of virtualization in total. Just wanted to mention it should anyone know any potential leads based on that. But I haven’t bumped into any problem I think is related to the virtualization. Can also mention that these vm's have two interfaces eth0, and eth1. Eth1 is the device I want the macvlan on. Lastly, for both vm's and physical servers the operating system is CentOS7.
About the Kubernetes installation:
- The Kubernetes (overcloud) was installed using Kubespray.
- I edited the host files to make node1 master node2 W1 and node3 W2.
- I set kube_network_plugin_multus to true to.
- Whereabouts is used to assign ip addresses to the net1 interfaces.
- I use calico as the networking driver.
Here’s the configurations used for the macvlan network:
...ANSWER
Answered 2021-Feb-01 at 07:41To conclude I've managed to find the answer myself. It turned out it was the OpenStack security group that caused the problem. All I needed to change to get things running was to disable port security on all of the eth1-network ports. This is the command I used for every such port:
QUESTION
Small question on how to achieve horizontal pod autoscale please
I have a SpringBoot app that has Actuator/Micrometer/Prometheus plugins deployed in Kubernetes
Hence, very happy, I am seeing my metrics while making queries to the app
...ANSWER
Answered 2021-Jan-08 at 07:41Custom metrics in Kubernetes requires a further integration in order to make it work.
In general, if you use custom metrics with prometheus, you can connect the prometheus server to the actual custom metrics in Kubernetes with prometheus adaptor here, https://github.com/DirectXMan12/k8s-prometheus-adapter.
You can install it through helm and connect it to your prometheus server. Once you have successfully set it up, you can get the custom metrics from the following command, depending on your Kubernetes version.
QUESTION
I keep getting the error message "Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'."
According to stackoverflow question transformClassesAndResourcesWithProguardForRelease FAILED I need to just add the following code to my proguard-rules.pro:
...ANSWER
Answered 2020-Nov-26 at 11:20First, we will enable shrinking in the build file. Find build.gradle file which sits inside /android/app/ folder and add lines in bold
QUESTION
TransactionScope throwing exception I am using .net core 2.2
In this example I am first creating scope of TransactioScop then opening SQL transaction for one database which is working fine then after the first transaction I am calling commit which will commit SQL transaction then I trying to open call transaction for another database while creating transaction system throwing an exception
as Message "This platform does not support distributed transactions."
tried to remove SQL transaction
c#
...ANSWER
Answered 2020-Jan-15 at 16:32.NET Core doesn't support Distributed Transactions because it would require a different transaction manager on each platform. It may appear in the future (here's the issue in-progress), but for now any Transaction that would require two different resource managers will throw this exception.
Instead you coordinate separate transactions. Have two seperate transactions complete their work, and then commit them both. There is a possibility that the first one succeeds and the second one fails, but for SQL Server, that would be a very rare occurance. Something like:
QUESTION
I am using the TMDb API to get data for my program in VB and I am trying to get an array of all the ids of the movies returned from the raw response of JSON, but it keeps coming up with an error. my code is in VB.net and my code looks like this:
...ANSWER
Answered 2020-Mar-17 at 20:51Your results are in an array - a list of Movies.
Try changing the type on this from As String to As JObject and then working with the results from there.
Dim obj2 As String = JObject.Parse(obj.SelectToken("results"))
QUESTION
I have a HTML5 application which has a table (ID is #myTable in the remainder of this question). The table is populated by an ajax request.
Following the ajax response a single row of the table looks like this:
...ANSWER
Answered 2020-Feb-18 at 11:25You can use the target property of the event object to check what element was clicked.
QUESTION
I'm following Devdactic's http tutorial and I can't tell if I'm misunderstanding the response or not executing something else correctly.
When I execute it, I keep getting an error within the browser attempting to render the array.
My ionic app says
...ANSWER
Answered 2020-Jan-16 at 13:40The endpoint returns a JSONObject. You need to use the result array inside that JSONObject for your *ngFor.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install whereabouts
Installing Whereabouts itself (it's just a binary on disk).
Creating IPAM CNI configurations.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
