1. Feedback On Using The Launcher On Mini Cube And Docker-for-mac

The beauty of building with Docker for Mac or Windows is that you can deploy the exact same set of Docker container images on your desktop as you do on your production systems with Docker EE. Docker for Mac and Docker for Windows are used for building, testing and preparing to ship applications, whereas Docker EE provides the ability to secure and manage your applications in production at scale.

The following documentation is for Mac users and to help get you started using Kubernetes with Minikube. Install prerequisites Install for Mac. Install for Mac.

Install for Mac. Brew cask install minikube Install for Mac. Brew install kubectl Launch minikube with the following command. Minikube start Example minikube start Starting local Kubernetes v1.7.5 cluster. Getting VM IP address. Moving files into cluster.

Setting up certs. Connecting to cluster. Setting up kubeconfig.

Starting cluster components. Kubectl is now configured to use the cluster. You should now see minikube running in VirtualBox. Test your minikube installation with the following commands. Minikube status Example minikube status minikube: Running cluster: Running kubectl: Correctly Configured: pointing to minikube-vm at 192.168.99.100 Launch kubernetes dashboard. Minikube dashboard Or you can view the dashboard URL.

Minikube dashboard -url Example minikube dashboard -url Create a minikube directory for your project files and cd into it mkdir minikube; cd minikube Setup environment This command sets up the Docker environment variables so a Docker client can communicate with the minikube Docker daemon. Eval $(minikube docker-env) If you are managing multiple kubernetes clusters, you can view them using get-context. Kubectl config get-contexts Make sure you are using the minikube cluster.

Kubectl config use-context minikube Helloworld Demo Create httpd application Within your minkube directory, create a helloworld-v1 directory and your public-html directory. Then cd into it.

Mkdir -p helloworld/public-html; cd helloworld Echo Hello World! Into public-html/index.html. Echo 'Hello World' public-html/index.html Create docker container From within the helloworld dir, create Dockerfile.

Vi Dockerfile FROM httpd COPY./public-html/ /usr/local/apache2/htdocs/ EXPOSE 80 Build your docker image. Docker build -t helloworld:1.0. Example docker build -t helloworld:1.0. Sending build context to Docker daemon 3.584kB Step 1/3: FROM httpd - 72 Step 2/3: COPY./public-html/ /usr/local/apache2/htdocs/ - 6f2cf58784ef Step 3/3: EXPOSE 80 - Running in 7b1e2c50b246 Removing intermediate container 7b1e2c50b246 - d4c64d7e968b Successfully built d4c64d7e968b Successfully tagged helloworld:1.0 Create deployment kubectl run helloworld -image=helloworld:1.0 -port=80 Example kubectl run helloworld -image=helloworld:1.0 -port=80 deployment 'helloworld' created A few view commands (because why not). Kubectl get services # view services kubectl get deployments # view deployments kubectl get pods # view pods kubectl get events # view events kubectl config view # view kubectl config You should now be able to see your helloworld deployment within the kubernetes dashboard. Now that we’ve created a Deployment, we need to create what is called a Service to expose the application. Kubectl expose deployment helloworld -type=NodePort -name=helloworld Example kubectl expose deployment helloworld -type=NodePort -name=helloworld service 'helloworld' exposed You should now be able to see your helloworld service within the kubernetes dashboard.

Launch services minikube service helloworld Example minikube service helloworld Opening kubernetes service default/helloworld in default browser. In my case, it opened my browser to Logs View your pods. Kubectl get pods NAME READY STATUS RESTARTS AGE helloworld-hrv11 1/1 Running 0 18m View the pods logs. Kubectl logs helloworld-hrv11 Example kubectl logs helloworld-hrv11 AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.7. Set the 'ServerName' directive globally to suppress this message AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 172.17.0.7. Set the 'ServerName' directive globally to suppress this message Wed Mar 28 23:30 2018 mpmevent:notice pid 1:tid 79584 AH00489: Apache/2.4.33 (Unix) configured - resuming normal operations Wed Mar 28 23:10 2018 core:notice pid 1:tid 79584 AH00094: Command line: 'httpd -D FOREGROUND' 172.17.0.1 -28/Mar/2018:23:49:31 +0000 'GET / HTTP/1.1' 200 12 172.17.0.1 -28/Mar/2018:23:49:31 +0000 'GET /favicon.ico HTTP/1.1' 404 209 172.17.0.1 -28/Mar/2018:23:55:59 +0000 'GET / HTTP/1.1' 304 - Update your application Let’s update our application. Echo 'Hello World Again' public-html/index.html Build a new version of your image.

Docker build -t helloworld:2.0. View image on minikube vm. Minikube ssh docker images grep helloworld Example minikube ssh docker images grep helloworld helloworld 2.0 a4a1a0a3f100 55 seconds ago 177.5 MB helloworld 1.0 e6b9b5ebfd34 42 minutes ago 177.5 MB Update the image of your Deployment.

Kubectl set image deployment/helloworld helloworld=helloworld:2.0 Example kubectl set image deployment/helloworld helloworld=helloworld:2.0 deployment 'helloworld' image updated Refresh your browser to view your updated deployment or run minikube service helloworld. Minikube service helloworld Scaling We are currently running 1 pod within our deployment. Lets make it 4. First, open another terminal so you can watch the pods be created in realtime.

Kubectl get pods -w Scale the pods. You should see the pods go from Pending, ContainerCreating to Running. Kubectl scale deployment helloworld -replicas=4 Clean up This will delete the service and deployment called helloworld. Kubectl delete service,deployment helloworld.

How to Install Kubernetes on Mac This is a step-by-step guide to installing and running Kubernetes on your Mac so that you can develop applications locally. You will be guided through running and accessing a Kubernetes cluster on your local machine using the following tools:. Homebrew.

Docker for Mac. Minikube. virtualbox. kubectl Installation Guide The only pre-requisite for this guide is that you have installed. Homebrew is a package manager for the Mac.

You’ll also need, which you can install after Homebrew by running brew tap caskroom/cask in your Terminal. Docker is used to create, manage, and run our containers. It lets us construct containers that will run in Kubernetes Pods. Install using Homebrew. Run brew cask install virtualbox in your Terminal. VirtualBox lets you run virtual machines on your Mac (like running Windows inside macOS, except for a Kubernetes cluster.) Skip to step three if everything has worked to this point. In my case, I already had the non-Homebrew VirtualBox app installed which caused issues when trying to start minikube.

Introducing muscle system pro iii for mac free. If you already have VirtualBox installed, start the installation as before with brew cask install virtualbox. You will get a warning that confirms this saying Warning: Cask 'virtualbox' is already installed.

Once this is confirmed, you can reinstall VirtualBox with Homebrew by running brew cask reinstall virtualbox. If you happen to have VirtualBox already running when you do this, you could see an error saying Failed to unload org.virtualbox.kext.VBoxDrv - (libkern/kext) kext is in use or retained (cannot unload). This is because the kernel extensions that VirtualBox uses were in use when the uninstall occurred.

If you scroll up in the output of that command, beneath Warning! Found the following active VirtualBox processes: you’ll see a list of the processes that need to be killed. Kill each of these in turn by running kill firstcolumnnumber ( firstcolumnnumber is the process identifier for that process). Now re-run brew cask reinstall virtualbox and it should succeed. Install for Mac.

This is the command-line interface that lets you interact with Kuberentes. Run brew install kubectl in your Terminal. Install via the. At the time of writing, this meant running the following command in Terminal curl -Lo minikube && chmod +x minikube && sudo mv minikube /usr/local/bin/ Minikube will run a Kubernetes cluster with a single node. Everything should work! Start your Minikube cluster with minikube start. Then run kubectl api-versions.

If you see a list of versions, everything’s working! Minikube start might take a few minutes. At this point, I got an error saying Error starting host: Error getting state for host: machine does not exist. Because I had previously tried to run Minikube.

You can fix this by running open /.minikube/ to open Minikube’s data files, and then deleting and deleting the machines directory. Then run minikube start again.

Feedback On Using The Launcher On Mini Cube And Docker-for-mac

Come Together You’ve installed all these tools and everything looks like it’s working. A quick explanation of how the components relate is needed. VirtualBox is a generic tool for running virtual machines. You can use it to run Ubuntu, Windows, etc. Inside your macOS operating system host.

Minikube is a Kubernetes-specific package that runs a Kubernetes cluster on your machine. That cluster has a single node and has some unique features that make it more suitable for local development. Minikube tells VirtualBox to run. Minikube can use other virtualization tools—not just VirtualBox—however these require extra configuration. kubectl is the command line application that lets you interact with your Minikube Kubernetes cluster. It sends request to the Kubernetes API server running on the cluser to manage your Kubernetes environment. Kubectl is like any other application that runs on your Mac—it just makes HTTP requests to the Kubernetes API on the cluster.