In other words, this is a great opportunity to make things really confusing if you're not thoughtful. This is an area where you want to put some management thought into place. Note that the pod name and the name of the image do not need to match. This will pull an image down from my public repository to your system and run it using Kubernetes.Ī little more detail: This creates a pod named qotd, retrieves the image, starts the image in a container, and uses port 10000 to route to it. Kubectl run qotd -image=quay.io/donschenck/qotd:v2 -port=10000 To do this, let's run an image in a pod and then run curl to make sure it's all working as expected.
Oc login -u kubeadmin -p 7z6T5-qmTth-oxaoD-p3xQF An image to runįinally, it's a good idea to run a very basic image as a Kubernetes pod to test your setup. If you don't, and you need to log in, the only workaround will be to stop and then again start the cluster. You might want to save it for the sake of convenience. If you want to use only kubectl and be a purist, you can follow this blog post " Logging Into a Kubernetes Cluster With Kubectl." Lucky for us, the login instructions are displayed right there on the screen. If we didn't use them, we'd have to alter our Kubernetes configuration and create a user and grant access. We're going to cheat here and use some OpenShift commands. When that finishes, we need a few commands to get "attached," if you will, to our cluster. Note: If, at any time, you want to start fresh with CRC, use the commands crc stop and crc delete -force -clear-cache. Then mash the Enter key and CRC will start. You will be prompted for your pull secret. It's quite simple at the command line, use the following command: Copy it to your Mac's clipboard so you can paste it into the terminal window. It's one command, but, you'll need your "pull secret" first. There are several option you can set, such as how much memory and number of CPUs, but to keep it simple let's go with the defaults. What is this upstream talk all about? It's part of Red Hat's strategy.)īefore you can start using CRC, you need to initialize it. OKD is the upstream version of OpenShift. (Or, you can use the DIY instructions at the okd page. (If that fails, there is a more in-depth explanation on the kubectl installation page.)
#KUBERNETES WITH DOCKER FOR MAC INSTALL#
The Kubernetes command-line tool, kubectl, is a breeze to install on macOS: Note that, depending on when you do this, you may have a newer version than shown here.īonus: It's included in CRC. This will be used for authentication the first time you start your Kubernetes (OpenShift, actually) cluster.
#KUBERNETES WITH DOCKER FOR MAC DOWNLOAD#
While you at the CodeReady Containers downloads page, go ahead and download the pull secret the button is just a bit further down the page.Make sure the directory is in your system PATH.Make sure the file is where you want it to reside (e.g., ~/crc directory).
The easiest way to do this is to double-click on the file, or use tar. Keep this page open you'll need it for the step five.
So let's install CodeReady Containers on macOS. This will run on our local machine yet give us the power of Kubernetes (and OpenShift, by the way) without spending any money. We'll keep things simple and forward-looking by choosing CodeReady Containers (abbreviated as "CRC"). Options include Minikube, Minishift, CodeReady Containers, and a Red Hat OpenShift cluster (running on, say, AWS). We need some sort of environment to run containers. The oc command-line tool for Red Hat OpenShift.The Kubernetes command-line tool, kubectl.Unlike a certain brand of kitchen cabinets that I recently purchased that had instructions only as diagrams with a stick figure person and some numbers and arrows, we'll lay out the items and steps with diagrams and words. In this blog post, we'll get our Kubernetes environment up and running on macOS, spin up an image in a container, and head to Coderland. Now it's time to move into the spotlight, walk the red carpet, and own the whole Kubernetes game. It was much easier than you anticipated, and you've updated your resume. By following my previous article in this series, you've crushed the whole containers thing.
0 kommentar(er)
