How can I deploy ThingWorx Docker images on Azure Kubernetes Service (AKS)? Kaya. imagePullSecrets is a type of a Kubernete Secret whose sole purpose is to pull private images from a Docker registry. In the previous post, we built a Docker image and then pushed it to Azure Container Registry to host. Time to Complete. It has attracted a lot of attention over the last few years. On the last article ( The lifecycle of a Kubernetes Pod ) we discussed what a pod is in theory, now let’s see what it actually looks like in practice. Deploy a React Application on Kubernetes with Bitnami's Apache Helm Chart Introduction. Earlier, I had written about how to build a custom SQL Server 2017 Docker image and also how to integrate SQL Server 2017 Linux with ASP. A Pod contains one or more containers, such as Docker container. In this tutorial we will install Docker-for-Desktop Edge release and enable the built in Kubernetes engine to run your own personal instance of Rancher 2. After that, I needed to configure the kubectl from within WSL to connect to my Docker Edge Kubernetes instance. Push the image to a cloud repository. Microsoft Azure DevOps (ADO) is a fully managed suite of tooling that empowers developers and operators to implement DevOps techniques. The CLI is installed on the image as the az command in /usr/local/bin. How to install Docker on Fedora. If you want to install it locally, you can use the az acs kubernetes install-cli command. Tilt is currently available for MacOS and Linux. Example Kubernetes yaml to pull a private DockerHub image - gist:b9a0e342c56479f5e58d654b1341f01e. io/brendanburns' The extension can install kubectl, helm and draft for you if they are. So I had to install kubectl in WSL and then configure it to connect to my Docker Edge Kubernetes instance on windows. This needs to be installed on Kubernetes Master. 04 Bionic Beaver Linux. If you have installed Docker before, you may need to place your PATH entry before the one added by Docker installer or remove the Docker’s kubectl. Minikube runs a simple, single-node Kubernetes cluster inside a virtual machine (VM). Deploy Kubernetes to the dev environment. To list docker images located on minikube VM (which has docker deamon installed by default) we need to do. Docker follows a unique approach to networking that is very different from the Kubernetes approach. If you have kubectl already installed and pointing to some other environment, such as minikube or a GKE cluster, be sure to change context so that kubectl is pointing to docker-for-desktop:. Nick Janetakis has well written the trick on his blog post. io/brendanburns' The extension can install kubectl, helm and draft for you if they are. Push Docker Image to DockerHub (Docker Images Central Official repository) d. Run: create a new container of an image, and execute the container. At this custom I will add kubectl into custom image that for using kubectl later to create deployment and expose service in Google Cloud. $ kubectl config use-context docker-for-desktop Switched to context "docker-for-desktop". Please note that this walk-through is for demonstration purposes only, not for use in production. az login If the CLI can open your default browser, it will do so and load an Azure sign-in page. After that has happened, you continue to run the Docker commands you’re used to, but now they are executed on a cluster by a swarm manager. Running a Java application in a production environment like Kubernetes is the best way to automate the deployment, scaling and management of the application. Docker can be run at the antsle's command line. When I first published this blog, I wrote a bunch of steps to install and configure kubectl in WSL. docker push /node-example. ) set the image in the pod spec like the build tag (eg my-image) set the imagePullPolicy to Never, otherwise Kubernetes will try to download the image. Our guides below should be of great help. #Install component kubectl in gcloud # In order to use the platform for pull image. After that, I needed to configure the kubectl from within WSL to connect to my Docker Edge Kubernetes instance. Recreate the image and return to the beginning of the guide. Docker Cloud uses DockerHub as its native registry for storing both public and private repositories. az login If the CLI can open your default browser, it will do so and load an Azure sign-in page. 04 Docker Hello World Application Nginx image - share/copy files, Dockerfile Working with Docker images : brief introdution Docker image and container via docker commands (search, pull, run, ps, restart, attach, and rm). Restart your terminal. On the last article ( The lifecycle of a Kubernetes Pod ) we discussed what a pod is in theory, now let’s see what it actually looks like in practice. Perhaps you want to build containers on a remote machine. Google Cloud Platform (GCP) is a cloud computing service by Google that offers a set of enterprise cloud services that leverages the same techologies that are used at Google. 03 Release, a new flag –gpus have been added for docker run which allows to specify GPU resources to be passed through to the Docker Image(NVIDIA GPUs). Here you go we should be able to see the image called myapp, myapp is the name i used to tag the image. Run the following command: kubectl apply -f. In JHipster terms, a gateway is a normal JHipster application. Docker is one of the most widely used container technologies and works directly with Kubernetes. 04 Docker Hello World Application Nginx image - share/copy files, Dockerfile Working with Docker images : brief introdution Docker image and container via docker commands (search, pull, run, ps, restart, attach, and rm). We'll be using the default orchestrator later in the post for the docker stack command. $ eval $(minikube-linux-amd64 docker-env) $ docker loadChef: . class: title, self-paced Deploying and Scaling Microservices. Now install the kubernetes packages kubeadm, kubelet, and kubectl using the yum command below. Using the -t flag with docker build will allow you to tag the image with your Docker Hub username so that you can push it to Docker Hub once you’ve tested it. So, my FIFO buffer fills up, and I forget the simple command-line options to make Docker work. [[email protected] ~]# systemctl start docker. While Docker Hub is great for public images, setting up a private image repository on the site involves some security key overhead that we don’t want to deal with. docker build. container-registry - The Docker registry where you pushed the image. kubectl run mariadb --image Docker images in the Google Image. Run the Pipeline to build the Docker image. These features are intended for testing and feedback only as they may change between releases without warning or can be removed entirely from a future release. Deploy Pod, Replication Controller and Service in Kubernetes 1. kubectl get po -o wide Json and Jq. A Pod contains one or more containers, such as Docker container. If you are using a private Docker registry, you need to pull the following 2 docker images: appscode/voyager; appscode/haproxy; To pass the address of your private registry and optionally a image pull secret use flags --docker-registry and --image-pull-secret respectively. With KubeCon EU happening in Copenhagen, we looked back at the most popular posts with our readers on Docker and Kubernetes. May 2, 2016. The problem is, Docker works so well, I rarely need to interact with it. Setting up CI/CD for Docker Container Running in Kubernetes using VSTS extension installed from Marketplace. It’s possible to have a multi-master setup (for high availability), but by default there is a single master server which acts as a controlling node and point of contact. Our guides below should be of great help. For cluster level metrics, one Snap pod is also deployed to the cluster. NET Core 2 Docker images in Kubernetes using Azure Container Service and Azure Container Registry Configure Alias on Windows for Kubectl Configure Ingress on Kubernetes using Azure Container Service Recent blogposts. There was an era of monolithic software applications where the whole application was packaged and deployed on a single server running as a single process. 03 Release, a new flag –gpus have been added for docker run which allows to specify GPU resources to be passed through to the Docker Image(NVIDIA GPUs). 15-20 minutes. Verify from the following command. NET Core 2 Docker images in Kubernetes. Here's a diagram of the various parts in play in this codelab to help you understand how pieces fit together. This needs to be installed on Kubernetes Master. kubectl CLI • Command: Specifies the operation that you want to perform on one or more resources, for example create, get, delete. With this cluster, you can run kubectl commands, deploy helm, the Kubernetes dashboard, or any other facility that can run in Kubernetes. 0, which has gcloud, kubectl, docker, node, etc installed. sudo reboot. After that, I needed to configure the kubectl from within WSL to connect to my Docker Edge Kubernetes instance. Read Azure docs always in en-us instead of local language; Stop using ARM templates! Use the Azure CLI instead. Kured then takes care of the reboots for you so only one node is restarted at a time. Possible resources include (case insensitive): pod (po), replicationcontroller (rc), deployment (deploy), daemonset (ds), replicaset (rs) Options--all=false. At work, he is working on building the technology for clients leveraging the Red Hat technology stacks like BPM, PAM, Openshift, Ansible, and full stack development using Java, Spring Framework, AngularJS, Material design. In AWS we use an Elastic Load Balancer (ELB) to expose the NGINX Ingress controller behind a Service of Type=LoadBalancer. Please refer to the Docker Hub page or our Github repository for the latest instructions. May 2, 2016. When the pipeline is successful, a new Docker image should exist in your Docker registry. The Azure CLI is a command-line tool providing a great experience for managing Azure resources. …We're going to connect to our cluster. In my new series on the Project Calico blog, I started off by sharing some of the challenges enterprises are facing today with their current infrastructures and architectures. Using the credentials provided to Juju. Since we'll be using a prebuilt Docker container, we won't need to first build a Docker image. Now run the docker images command to list the images. Every time you push or pull an image from Amazon ECR, you specify the registry and repository location so that Docker is able to push the image or pull the image from the right location. The Kubernetes project released patches yesterday for kubectl 1. The --replica switch to specify that 3 replicas are needed for the application. Learn to deploy microservices, built with. In this article, we will be deploying a containerized NodeJS application to GCP with Kubernetes, thanks to the platform's. You can even setup Docker Compose to deploy pods to Kubernetes directly from a compose file by using docker. containerd node images. Click Repositories to find the docker image that has been uploaded to registry. In order to use SSL you need a certificate. We will go through a quick install of kubernetes on top of docker. Deploy a Java Application on Kubernetes with Helm Introduction. We need two tools for this to work. Actually, we install kubernetes on windows 10 bash on Ubuntu, in this way, the bash on ubuntu works as a master, base on Linux, we can't run windows docker image on it. Finding plugins elsewhere. Kubectl cluster-info. This guide will help you configure Bitbucket Pipelines to automatically deploy a containerized application to Kubernetes. Docker for Mac is very easy to install, but it also comes with limited configuration options. $ kubectl config set-context $(kubectl config current-context) --namespace=spring-into-kubernetes-1 Context "cluster1" modified. Create a values. Customers must install them manually or use any of the publicly available Helm Charts or Kubernetes YAMLs to deploy them. Minikube runs a simple, single-node Kubernetes cluster inside a virtual machine (VM). The reason for using a custom image is that I wanted a base image that has all the required tools for this project. 12/19/2018; 8 minutes to read; In this article. Also, because I like charts and graphs, I decided to install a Docker GUI. For a background on how Docker in Docker can help us to set up a local Kubernetes cluster, see the Background section in the blog post Setting up a Docker Swarm cluster using Docker in Docker. And Docker for Mac auto-updates so you continue getting the latest Docker product revisions. ) Docker Networks - Bridge Driver Network Docker Persistent Storage File sharing between host and container (docker run -d -p -v) Linking containers and volume for datastore. 0 it is possible to use a classic load balancer (ELB) or network load balancer (NLB) Please check the elastic load balancing AWS details page. I personally like the simplicity of Docker Swarm and have found in my teaching experience with developers, that it was easier for most people to understand what Container Management solutions are all about when they see a few simple. Using the external name host. container-registry - The Docker registry where you pushed the image. The controlplane also. Therefore, it is advised that, you should follow that article to install Docker CE before Kubernetes (K8s) installation on both machines. Step 1: Install Docker. The sample Pipeline is complete. This needs to be installed on Kubernetes Master. Our guides below should be of great help. Kubernetes pulls the new docker image from the docker registry. This is because your Docker image was created in your host but the Docker instance of Kubernetes is within the virtual machine. This is the command-line interface that lets you interact with Kuberentes. The procedure for installing Docker varies according to your OS, but in most cases, it can be done easily through the package manager (yum and dnf on RHEL and Fedora). Create the MedRec Docker Image Open a browser, and log into the Docker Store. It’s possible to have a multi-master setup (for high availability), but by default there is a single master server which acts as a controlling node and point of contact. class: title, self-paced Deploying and Scaling Microservices. minikube ssh >docker images. kubectl get nodes kubectl describe nodes kubectl get all --all-namespaces. Once logged in, you can push any existing docker image to your ACR instance. Every time you push or pull an image from Amazon ECR, you specify the registry and repository location so that Docker is able to push the image or pull the image from the right location. Package your Java EE applications using Docker and Kubernetes Arun Gupta, @arungupta Red Hat. Login to the 'k8s-master' server and create new deployment named 'nginx' using the kubectl command. Run the kubectl run command. Enable Kubernetes by selecting the checkbox, also select Kubernetes as the default orchestrator. We previously ran a public image from Docker Hub. 04 Docker container vs Virtual Machine Docker install on Ubuntu 14. In this example we’ll push our Docker image of the application to the Azure Container Registry. Alexandrite If you're using Azure Cloud Shell, kubectl is already installed. If you have installed kubectl with Homebrew or other installers and have some issues to work with, remove it from /usr/local/bin/kubectl. Chocolatey is trusted by businesses to manage software deployments. 06 Stable or higher and includes a Kubernetes server and client, as well as integration with the Docker executable. Fluentd will be collecting logs both from user applications and cluster components such as kube-apiserver and kube-scheduler, so we need to grant it some permissions. Altogether I have spent way too much time to discover how to talk to containers running in Kubernetes from outside the Kubernetes cluster (Kubernetes for Docker, Oracle, GKE). Since we'll be using a prebuilt Docker container, we won't need to first build a Docker image. Recipe SSL without DNS A lot of times during development I need to make a “box” accessible to the internet using SSL (HTTPS). Edit the data in docker-registry. Feel free to use your own docker image with a working web application. Here are the errors:. systemctl start docker && systemctl enable docker. When you’re building Docker images in your host machine and attempt to run those images within your Minikube’s Kubernetes cluster, you’ll discover that Minikube is unable to find your Docker image. Installing IBM Event Streams on OpenShift. Kubectl installed in an alpine based image from docker. Required: This tutorial uses the app created in the Hello World Microservice tutorial. However, if you make changes to the helm chart or wish to change the controller’s arguments, such as to change the logging level, you may also update it with the following:. $ kubectl config use-context docker-for-desktop Switched to context "docker-for-desktop". This will guide you through the setup of your user locally, so you can use Google Cloud. Connect to your Ubuntu VM using the following credentials: openebs/password. io container registry, you need to transfer the docker credentials into the cluster. This is the description of another one of neat little tools we made for our toolkit: Docker OpsBox, a portable runtime environment for an error-proof Ansible-AWS CLI-Kubectl launch on any admin. 15, and also released kubectl 1. Learning objectives. The other big difference here is that this is not with Minikube, which you can still install on a Mac. Docker Cloud uses DockerHub as its native registry for storing both public and private repositories. Docker developed it, then donated it to the Cloud Native Computing Foundation in 2017. This article follows on from the first article in this series, and describes how to build and deploy a basic IBM Integration Bus (IIB) node in a Bluemix environment, using Kubernetes as a management tool for the IIB containers. The advantage of the minimal images is that they often remove a whole bunch of software that’s not needed in a container. For this tutorial, we’ll create a simple ASP. There are a number of advantages to continuing to use Docker EE including: Pre-installed Kubernetes. kubectl get nodes kubectl describe nodes kubectl get all --all-namespaces. It has been used as a reliable and realistic application performance benchmark for over 10 years. 04 Docker container vs Virtual Machine Docker install on Ubuntu 14. For this, we will use the Docker image of Logstash running in your development machine. It was a bit of an adventure, so I thought I'd share the ins and outs of my experience. $ minikube service. IBM is deploying the open-source software Kubernetes to manage container-based applications in the Bluemix environment. Note: If you are using minikube you can use the minikube docker socket and skip pushing the image up to a registry. and see if azds shows up in the result. Install Docker on Linux. Select New Spec. Nick Janetakis has well written the trick on his blog post. \kubectl scale –replicas=3 deployment/hello-nginx. Example Kubernetes yaml to pull a private DockerHub image - gist:b9a0e342c56479f5e58d654b1341f01e. Open docker-compose. Update the deployment to use updated Docker image. It is with a Edge version of Docker on Mac. 9- Install docker-compose. Ghost Riding The Whip -- A complete Kubernetes workflow without Docker, using CRI-O, Buildah & kpod 20 Sep 2017. yum install -y kubelet kubeadm kubectl. Log in again to the server and start the services, docker and kubelet. We will explain how to to deploy and setup Docker security scanning: both on private Docker repositories, and as a CI/CD pipeline validation step. Minikube is a tool used to run a single-node Kubernetes cluster locally. For this guide you will need a couple of tools to manage and deploy to your local Kubernetes instance. Run brew install kubectl in your Terminal. Install Docker. Learn to deploy microservices, built with. In this article, we talk about MacOS and take a look at Docker Desktop and Minikube…. set the environment variables with eval $(minikube docker-env) build the image with the Docker daemon of Minukube (eg docker build -t my-image. Prerequisites. 0 minishift addon enable admin-user #cdk 3. Gitkube is a tool for building and deploying docker images on Kubernetes using git push. AWS CLI Dockerfile with kubectl and Helm. Pushing a Docker image to ACR. To view a local version of the Kubernetes dashboard and to deploy apps into your clusters, install the Kubernetes CLI (kubectl). Install Docker. It was recently handed over to the Cloud Native Computing Foundation, and its development is now driven by the open-source community. Learn Step 1 - Start Minikube, Step 2 - Cluster Info, Step 3 - Deploy Containers, Step 4 - Dashboard, via free hands on training. And we’ll build another Docker image. You create your Docker image and push it to a registry before referring to it in a Kubernetes pod. I have recently covered multiple posts (1 & 2)on getting started with Docker Swarm. Using the external name host. In this tutorial, we will install Docker from the Ubuntu repository. Installing IBM Event Streams on OpenShift. You can look up this information for the different cloud registries. Create Docker Compose, user-defined Network, configure HRM, troubleshoot issues. The Docker images must be pushed to a Docker registry that is accessible to the Kubernetes cluster. Take a previously created microservice and deploy it to Azure, using DockerHub and Azure Kubernetes Service (AKS). kube\config. Step 3 − Install the Docker Engine using the following command. Docker Desktop gives you easy access to the tools that allow you to develop and deploy containers. Prerequisites. docker build -t node_image:v1. If you have kubectl already installed and pointing to some other environment, such as minikube or a GKE cluster, be sure to change context so that kubectl is pointing to docker-for-desktop:. Kubernetes follows a client-server architecture. This pipeline describes our build process, and a usual process when we work with Kubernetes is to build a Docker image, push it to a image repository then to some work with kubectl (like update the image for a deployment), or with helm (update a chart, or deploy a new one). Kured then takes care of the reboots for you so only one node is restarted at a time. 04 Docker container vs Virtual Machine Docker install on Ubuntu 14. kubectl create secret docker-registry. Our guides below should be of great help. For Rails apps there’s a Ruby image, which comes in various flavours. So far I was using it to offload docker builds and use some VMs on a hyperV. 6, build 481bc77. Kubernetes provides the next step, allowing you to balance loads between containers and run multiple containers across multiple sy. CRI makes it easy to plug in a new Container runtime to Kubernetes. Docker image and container via docker commands (search, pull, run, ps, restart, attach, and rm) More on docker run command (docker run -it, docker run --rm, etc. Hopefully, by using the above steps you are able to provision a standalone PostgreSQL instance on a Kubernetes Cluster. Set the — image-pull-policy flag to Never to always use the local image, rather than pulling it from your Docker registry (since you haven't pushed it there):. Install Docker using the apt command below. kubectl delete -f. Docker Cloud uses DockerHub as its native registry for storing both public and private repositories. A brief introduction to Kubernetes using MiniKube on a local environment. $ eval $(minikube-linux-amd64 docker-env) $ docker loadChef: . Create account on hub. With Docker, you distribute your apps in lightweight containers complete with all dependencies. Now install the kubernetes packages kubeadm, kubelet, and kubectl using the yum command below. Docker - Working of Kubernetes - In this chapter, we will see how to install Kubenetes via kubeadm. kubectl delete deployment apibmongo kubectl delete service apibmongo kubectl delete hpa apibmongo Conclusion. 9- Install docker-compose. Required: This tutorial uses the app created in the Hello World Microservice tutorial. In this post, we will cover how you can create a local development workflow using Minikube and tools such as Make to iterate fast without the wait imposed by your continuous. Using this we can delete any docker images from our local system. Setting Up Kubernetes Cluster On Google Cloud. For Rails apps there’s a Ruby image, which comes in various flavours. Failure to build node image 🔗︎. This along with the Docker Engine API triggered the adoption of containers at a large scale. This includes the need to be able to adapt, and to. Docker-CE has a different way to be installed and Docker has a document for it. Firstly each image is started with the environment variable required for the docker image. kubectl create-f. [push image] docker push. Last active $ apt-get install -y kubelet kubeadm kubectl kubernetes-cni weaveworks/weave-kube:1. In this post, we will cover how you can create a local development workflow using Minikube and tools such as Make to iterate fast without the wait imposed by your continuous. Run brew install kubectl in your Terminal. If you have installed Docker before, you may need to place your PATH entry before the one added by Docker installer or remove the Docker’s kubectl. gcloud auth login. Used for container building and k8s deployments in CI/CD. It powers our Private SaaS deployments and we have found it to be a very powerful tool. And Docker for Mac auto-updates so you continue getting the latest Docker product revisions. The best way to get started developing containerized applications is with Docker Desktop, for OSX or Windows. You can run the following to see if your nodes. Tutorial: Update an application in Azure Kubernetes Service (AKS) 12/19/2018; 4 minutes to read +8; In this article. Since Kubernetes v1. The 2020 Recession: How To Prepare For The Next Market Crash - Duration: 13:00. Before you can push the image to a private registry, you've to ensure a proper image name. For training and demo purposes, on my Windows laptop, I needed an environment with a guest Operating System, Docker and Minikube available within an Oracle VirtualBox appliance. This can be achieved using the docker tag command. Review the output of the above commands. The best way to get started developing containerized applications is with Docker Desktop, for OSX or Windows. The Spinnaker pipeline is triggered when Amazon ECR receives the new Docker image. In the previous articles of the series, we have seen the local Kubernetes solutions for Windows and Linux. Learn Step 1 - Start Minikube, Step 2 - Cluster Info, Step 3 - Deploy Containers, Step 4 - Dashboard, via free hands on training. We previously ran a public image from Docker Hub. Understanding how Docker works help later in understanding the Kubernetes model, since Docker containers are the fundamental unit of deployment in Kubernetes. sudo reboot. For a background on how Docker in Docker can help us to set up a local Kubernetes cluster, see the Background section in the blog post Setting up a Docker Swarm cluster using Docker in Docker. Connect to your Ubuntu VM using the following credentials: openebs/password. We won't detail kubernetes so much in this post. The way most people are using Docker is as a “better VM” in that they’re taking Ubuntu LTS releases and deploying on top of them. The kubectl CLI has been installed at version 1. For “kubectl describe nodes”, become familiar with the output. You can verify this. sudo apt install docker. At some point I need to install a few python packages with pip3 install. A kubectl command line tool installed and configured to communicate with the cluster. Building resilient microservices with Kubernetes, Docker, and Or you can install Kubernetes yourself in AWS $ kubectl run qotm-ws --image= section below. Run `deploy. Deploy a Java Application on Kubernetes with Helm Introduction. In rke the etcd role is specified separatately but can be placed on the same host as the controlplane. However, you may need to update your. This blogpost shows you the bare minimal steps to run. CI/CD connects all the bits. We'll use the Azure CLI. Docker install on EC2 Ubuntu 14. In the Forrester New Wave ™: Enterprise Container Platform Software Suites, Q4 2018 report, Docker was cited as a leader in enterprise container platform category with Docker and our Docker Enterprise Container platform receiving a "differentiated" rating in eight criteria including runtime and orchestration, security, image management. GitHub Gist: instantly share code, notes, and snippets. After that, I needed to configure the kubectl from within WSL to connect to my Docker Edge Kubernetes instance. This guide will help you configure Bitbucket Pipelines to automatically deploy a containerized application to Kubernetes. Install PX Generate the specs. chianingwang / Install Kubernetes with Docker. However, you may need to update your. The Kubernetes command line tool is located in the path below and if you are not adding this path to windows you will need to navigate to it if you want to run Kubernetes commands. You can look up this information for the different cloud registries. This is because your Docker image was created in your host but the Docker instance of Kubernetes is within the virtual machine. Follow the official Install Minikube guide to install it along with a Hypervisor (like VirtualBox or HyperKit), to manage virtual machines, and Kubectl, to deploy and manage apps on Kubernetes. Docker Enterprise includes a fully-conformant Kubernetes environment, complete with the industry-leading Docker Engine, an integrated image registry and developer desktops. Therefore, follow the steps described below to install Kubernetes on both the Ubuntu nodes. $ kubectl config use-context docker-for-desktop Switched to context "docker-for-desktop". (Last Updated On: March 1, 2019)In this guide, I’ll take you through the steps to install and set up a working 3 node Kubernetes Cluster on Ubuntu 18. • Type: Specifies the resource type. kubectl config set-cluster docker-for-desktop --insecure-skip-tls-verify=true Then validate you are talking to the Kubernetes in Docker by entering these commands: $ kubectl cluster-info Kubernetes master is running at https://docker-for-desktop:6443 To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'. Some platforms do not support LoadBalancer service objects. imageUser - Image prefix for the container images e. When you create a GKE cluster or node pool, you can choose the operating system image that runs on each node.