What is the difference between Kubernetes and GKE?
What is the difference between Kubernetes and Gke? In short Kubernetes does the orchestration, the rest are services that would run on top of Kubernetes . GKE brings you all these components out-of-the-box, and you don’t have to maintain them.
What are some alternatives to Kubernetes?
What is Kubernetes?
- Basics of orchestration. While all the tools for Orchestration are classified in the terms of ease of use, the features offered and supported.
- List of Kubernetes Alternatives. Swarm and Docker Engine both make it possible to deploy the containers in Swarm mode. ...
- Recommended Articles. This has been a guide on Kubernetes Alternatives. ...
How to debug Kubernetes on the proper way?
Use Bridge to Kubernetes
- Before you begin. ...
- Connect to your cluster and debug a service. ...
- Install and use local tunnel debugging. ...
- Configure the debugger for local tunnel debugging with Bridge to Kubernetes. ...
- Set a break point. ...
- Additional configuration. ...
- Using logging and diagnostics. ...
- Running in isolation mode. ...
- Header propagation. ...
- Communicating with other services. ...
How to use kubeadm to create Kubernetes cluster?
Kubernetes Cluster Setup Using Kubeadm
- Install container runtime on all nodes- We will be using Docker.
- Install Kubeadm, Kubelet, and kubectl on all the nodes.
- Initiate Kubeadm control plane configuration on the master node.
- Save the node join command with the token.
- Install the Calico network plugin.
- Join worker node to the master node (control plane) using the join command.
How does a weave work?
Weave Net creates a virtual network that connects Docker containers across multiple hosts and enables their automatic discovery. With Weave Net, portable microservices-based applications consisting of multiple containers can run anywhere: on one host, multiple hosts or even across cloud providers and data centers.
What is cloud Weave works?
Weave Cloud is an automation and management platform for development and DevOps teams. Built-in GitOps workflows are the foundation for improved development velocity through continuous delivery and increased reliability through observability.
How do you check weave status?
Check the version of Weave Net you are running using:weave version. ... docker logs weave. ... weave report. ... $ weave report -f '' weave. ... $ weave report -f '' {"Domain":"weave.local.","Upstream":["8.8.8.8","8.8.4.4"],"Address":"172.17.0.1:53","TTL":1,"Entries":null} ... weave ps.
Is weave cloud free?
Any developer can sign up for Weave Cloud, hook up their git repository and get continuous delivery, observability, metrics, dashboards and alerts immediately. We recently launched a free tier of Weave Cloud for Google Cloud Platform (GCP) users.
What is Docker weave?
Weave Net creates a virtual network that connects Docker containers across multiple hosts and enables their automatic discovery. With Weave Net, portable microservices-based applications consisting of multiple containers can run anywhere: on one host, multiple hosts or even across cloud providers and data centers.
What is weave scope?
Weave Scope is a visualization and monitoring tool for Docker and Kubernetes. It provides a top down view into your app as well as your entire infrastructure, and allows you to diagnose any problems with your distributed containerized app, in real time, as it is being deployed to a cloud provider.
How do I clear my weave cache?
Press the keys Control + Shift + K to clear the cache on the Weave Desktop App.
How do I update my weave?
Manually Update Your Weave Desktop AppOpen the desktop app and select the Menu in the top right corner.Select Settings.Click. ... On the Updates page, select Check Now.If a new update is available, a green button will appear in the top menu bar.Click the green button and then Restart to initiate the update.
How do you remove a weave net from Kubernetes?
Remove the weave interface from all the Kubernetes nodes....Step 1: Remove Weave objects. Warning: As soon as you perform this step pods might not be able to communicate with each other, and new pods might fail to get scheduled, and Nodes can be marked as NonReady. ... Step 2: Clean CNI files. ... Step 3: Remove the weave interface.
Is weave net open source?
Weave Cloud is built using these Open Source projects: Weave Scope, a powerful container visualization tool that automatically maps Docker containers and their interactions, Weave Cortex, a horizontally-scalable version of Prometheus, and Weave Flux, a continuous deployment tool that works with Kubernetes.
Is weave open source?
Weave is a developer of innovative software technologies focused on microservices and cloud-native development. The company leverages open source tools, including Go, Docker, and Kubernetes.
What is flux GitOps?
Flux is the operator that makes GitOps happen in your cluster. It ensures that the cluster config matches the one in git and automates your deployments.
What is tracking in weaving?
Tracking is something that happens to some yarns when they are woven in plain weave—usually when the cloth is wet-finished (though I've had it happen with humidity alone). The effect makes the plain weave cloth look a bit like a twill; diagonal lines appear, sometimes quite pronounced.
What does it mean to weave out?
Move by twisting and turning or winding in and out, as in The motorcycle wove in and out of traffic, leaving us far behind. This expression is a redundancy, since weave literally means “intertwine strands of thread.”
What is weave net?
In Kubernetes, Weave Net can enforce network policy to isolate sensitive microservices. Specifically Weave Net with Kubernetes implements Network Policy to enforce firewall rules between containers. Policy is simple to set up and it uses Kubernetes labels and namespaces defined in a .yaml file and once applied, those policies and firewall rules are enforced by Weave Net.
What is weave cloud dashboard?
The Weave Cloud dashboard discovers and integrates with your application. It acts much like a monitoring tool, but instead is arranged around a broader set of DevOps activities including release management, troubleshooting and monitoring.
Why use weave cloud?
You can use Weave Cloud to observe, understand and validate the different aspects of your application and infrastructure, and drill down into the system at key points all from a single dashboard. The ability to navigate through your app in a visual way provides the basis for rich workflows that straddle multiple stages of the lifecycle from image to deployment to runtime operation.
Does weave cloud have CI?
Weave Cloud does not provide CI capability but it works with CI systems to provide end-to-end automation. You can use any CI system you like, eg. Travis, Jenkins, Gitlab, Shippable, and CircleCI. CI systems push Docker images to a container registry, and that’s where Weave Cloud hooks in. Weave Cloud observes changes to images in a container image registry, and based on a deployment policy, can deploy changes to your cluster while version controlling the changes in a centralized configuration repository in Git.
Does weave cloud require network?
Weave Cloud does not mandate the network your application uses , but if you use Weave Net as your container network overlay, you can enjoy the following extra benefits:
Before you begin
You need to have a Kubernetes cluster. Follow the kubeadm getting started guide to bootstrap one.
What's next
Once you have installed the Weave Net addon, you can follow the Declare Network Policy to try out Kubernetes NetworkPolicy. If you have any question, contact us at #weave-community on Slack or Weave User Group.
A day in the life of a Packet
Let’s track what happens when Pod-1 (actual name is net-tshoot-22drp) tries to talk to Pod-3 (net-tshoot-pbp7z).
SNAT functionality
SNAT functionality for traffic egressing the cluster is done in two stages:
Partial connectivity
One of the interesting and unique features of Weave is its ability to function in environments with partial connectivity. This functionality is enabled by Weave Mesh and its use of the gossip protocol, allowing mesh members to dynamically discover each other and build the topology graph which is used to calculate the most optimal forwarding path.
Caveats and Gotchas
The official installation guide contains a number of things to watch out for.
What is weave scope?
Weave Scope is a visualization, and monitoring tool for Docker and Kubernetes.For Microservices-based architecture,Weave scope would be useful in visualizing network bottlenecks, troubleshooting CPU consumption and troubleshooting memory leaks.It provides a top down view into your app as well as your entire infrastructure, and allows you to diagnose any problems with your distributed containerized app, in real time, as it being deployed to a cloud provider.
What is scope view in Kubernetes?
Drill down Views: For an app which is running in Kubernetes, Scope displays Pods, Replica Sets, Deployments, and related Services on clusters.So for containerized microservices running in the cloud,you can view Processes, Containers, Orchestrators, and Hosts.
What command exposes pods to the outside world?
Once all of the Pods as up and running, use kubectl expose pod command to expose the services to the outside world.
Can you use scope in weave?
Scope can also be used to feed reports to Weave Cloud. With Weave Cloud offering, you can centrally manage and share access to your Scope user interface. In this configuration, the probe is run locally and the apps are hosted on the cloud.
Can Kubernetes be deployed to Docker?
In the below example, I’m going to use Kubernetes but it can be deployed to the Docker environment as well.
What is weave npc?
Weave-npc (the Weave network policy controller) allows you to customize arguments of the running binary by setting the EXTRA_ARGS environmental variable. This can be used for debugging or for customizing the logging level of weave npc.
How many bits of entropy is weave?
The Weave network encryption is configurable by creating a weave network secret password. Weaveworks recommends choosing a secret with at least 50 bits of entropy . If no password is supplied, kOps will generate one at random.
