Shulou(Shulou.com)06/02 Report--

Kubernetes has become the standard method for deploying edited applications on a large scale (many people would say this is the standard method). But if Kubernetes can help us control disorderly and complex edited deployments, is there any way to help us control Kubernetes? After all, it can also be complex, chaotic and difficult to manage.

As Kubernetes grows and evolves, some of its excesses are likely to be controlled internally. But instead of waiting for Kubernetes to become easier to use, some people have introduced their own solutions to many common problems with Kubernetes in production.

Here, we focus on 10 projects that simplify Kubernetes in a variety of ways, from simplifying command-line interaction, to simplifying application deployment syntax, to integrating with AWS, to providing a window for multiple clusters.

Catalogue

Bitnami Cabin: Kubernetes panel for iOS and Android

Kedge: a concise definition of Kubernetes deployment

Koki Short: list of manageable Kubernetes keys

Command line operation of Kops:Kubernetes cluster

Terminal console of Kubebox:Kubernetes

Chaos Monkey of Kube-monkey:Kubernetes

Kube-ps1: smart Kubernetes command prompt

Kube-prompt: interactive Kubernetes client

Kube-shell: shell for Kubernetes CLI

Kubespy: real-time monitoring of Kubernetes resources

Bitnami Cabin: Kubernetes panel for iOS and Android

Any modern web application or service should have some kind of mobile interface. Cabin provides a version of the Kubernetes panel for Kubernetes administrators that can be accessed from iOS or Android smartphones. Many of the functions provided throughout the Kubernetes panel can be launched from Cabin, including Helm diagrams, scale-out deployment, reading pod logs, and access to Kubernetes-hosted Web-based applications.

Kedge: a concise definition of Kubernetes deployment

The most common complaint about Kubernetes is how complex and lengthy its manifest (or application definition) is. It's painful to write them, and it's painful to maintain them, so it's not surprising that people turn to third-party tools for relief. Kedge provides simpler and more concise syntax. A simple version of the Kubernetes definition file is provided to Kedge, and Kedge extends the simple definition to a complete Kubernetes counterpart. Unlike Koki Short (see below), Kedge's declaration file does not use modular syntax; it simply simplifies the application definition to a generic shortcut.

Koki Short: list of manageable Kubernetes keys

Koki Short similar to the above Kedge is a project that improves the way application definitions or listings work in Kubernetes. Like Kedge definitions, Short definitions use abbreviated syntax to describe Kubernetes pod, which can be translated into full syntax and then returned. Unlike Kedge definitions, Short definitions are also modular, which means that the details in one Short declaration can be reused in other declarations, so that many pod with common elements can be simply defined.

Command line operation of Kops:Kubernetes cluster

Kops was developed by the Kubernetes team and allows you to manage Kubernetes clusters from the command line. It supports clusters running on AWS and GCE, and VMware vSphere and other environments are also under development. In addition to automating the setup and disassembly process, Kops can help with other types of automation. For example, it can generate a Terraform configuration, which allows the cluster to be redeployed using Terraform.

Terminal console of Kubebox:Kubernetes

Kubebox is the advanced terminal console for Kubernetes, which provides more than just a landscaped command line for Kubernetes and its API. It provides interactive display of memory and CPU utilization, pod lists, running logs, and configuration editors. Most importantly, it can be used as a stand-alone application for Linux, Windows, and MaciOS.

Chaos Monkey of Kube-monkey:Kubernetes

A foolproof way to stress test a system is to break things at random. This is the theory behind Netflix's Chaos Monkey, a chaotic engineering tool that randomly terminates virtual machines and local editors running in production to "encourage" developers to build more resilient systems. Kube-monkey is the implementation of the same basic idea of stress testing Kubernetes clusters. It works by randomly destroying pod in your designated cluster and fine-tuning it within a specific time window.

Kube-ps1: smart Kubernetes command prompt

Kube-ps1 is not the first Sony PlayStation emulator for Kubernetes (although this is great). It is a simple addition to Bash that displays the current Kubernetes context and namespace at the prompt. Kube-shell includes this and many other features, but if all you want is a smarter prompt, Kube-ps1 requires little overhead.

Kube-prompt: interactive Kubernetes client

Another smallest but useful modification to Kubernetes CLI is Kube-prompt, which allows you to enter the equivalent of an interactive command session with the Kubernetes client. Kube-prompt eliminates the need for you to enter kubectl as a prefix for each command and provides context information for each command to complete automatically.

Kube-shell: Shell of Kubernetes CLI

The Kubernetes command line is powerful, but like any command line application, choosing its options can be tedious. Kube-shell packages the standard Kubernetes command line in an integrated shell that provides auto-completion and automatic advice for common commands, including suggestions provided by the Kubernetes server (such as service names). It also provides more robust command history functions, vi-style editing modes, and running context information for users, namespaces, clusters, and other installation-specific details.

Kubespy: real-time monitoring of Kubernetes resources

Pulumi's Kubespy is a diagnostic tool that allows you to track changes in Kubernetes resources in real time, providing you with a dynamic text view panel. For example, you can see the pod state change when you start pod: write the pod definition to Etcd, plan to run pod on the node, run Kubelet on the node where the pod was created, and finally mark the pod as running. Kubespy can be run as a stand-alone binary file or as a plug-in to Kubectl.

Kubernetes entry Controller for AWS

Kubernetes provides external load balancing and network services to the cluster through a service called Ingress. Amazon Web Services provides load balancing capabilities, but does not automatically couple these services with the capabilities of Kubernetes. AWS's Kubernetes entry controller makes up for this gap. The ingress controller automatically manages the AWS resources of each ingress object in the cluster, creates load balancers for new ingress resources, removes load balancers for deleted resources, and uses AWS cloud formation to ensure a consistent state of the cluster. It also automatically manages other elements used in the cluster, such as SSL certificates and EC2 auto-scaling groups.

Kube-os-view: panel for multiple Kubernetes clusters

Kubernetes has a useful panel for general monitoring, but the Kubernetes community is trying to provide useful data to Kubernetes administrators in other ways. Kube-os-view is one such experiment: it provides an overview of multiple Kubernetes clusters and is presented graphically, so you can see the CPU and memory usage and status of pod in the cluster at a glance. Note that it does not allow you to call any commands, which is purely for visualization purposes. But the visualization it provides is amazing and effective, which can be perfectly integrated with the wall monitor in the operations center.

Skaffold: superimposed × × hair of Kubernetes

Skaffold is one of the tools developed by Google for Kubernetes and is a way to perform continuous deployment of Kubernetes applications. When you make changes to the source code, Skaffold automatically detects them, triggers the build and deployment process, and warns you if errors occur. Skaffold runs entirely on the client side. It can be used in existing CI/CD channels and integrated with some external build tools, mainly Google's own Bazel.

Stern and Kubetail: log tracing for Kubernetes

Stern allows you to generate color-coded output (according to the tail command) from pod and local edits in Kubernetes. This is a quick way to transfer all output pipes of multiple resources to a stream that can be read at a glance. At the same time, you have a clear way (color coding) to distinguish streams.

Kubetail similarly aggregates logs from multiple pod into a single stream and color-codes different pod and local edits. But Kubetail is a Bash script, so it only needs a shell.

Simple PaaS for Teresa:Kubernetes

Teresa is an application deployment system that runs as a simple PaaS on Kubernetes. Users organized into teams can deploy and manage their own applications. This makes it easier for those who are trusted by a given application to use it without having to deal directly with Kubernetes.

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