Find the local IP with: (you're looking for the IP of this VM on your local network) $ ip addr showģ: eth1: mtu 1500 qdisc fq_codel state UP group default qlen 1000 So let's get started creating a basic cluster configuration file.įirst, we want a name to provide access to this master node. If you want a different range, update the yaml file now. If you plan to use this range, we will push that into kubeadm next. This is the default IP range that will be used by Calico within the provided network. Changing this value after installation will have In this blog, we'll install Calico: $ wget įind the section that says (it's near the EOF): # The default IPv4 pool to create on startup if none exists. There are a few options for providing this networking support. Kubernetes networking aims to provide a unique IP to each Pod in order to allow easy service discovery and support Pod to Pod communication. $ sudo apt-mark hold kubelet kubeadm kubectl $ sudo apt-get install -y kubelet kubeadm kubectl $ sudo apt-get update & sudo apt-get install -y apt-transport-https curl These installation instructions involve pulling the Kubernetes package list from Google and then installing. ![]() Kubectl, as we've seen in other posts, is the client for communicating directly with the API Server, the brains of the cluster. Obviously, to use kubeadm to create the customer, we need to install Kubeadm! While we're here, we also need to install kubelet, which is responsible for starting and stopping containers as required. Docker, CRI-O and rkt), Docker is still the most common and is what we'll be using here. While there are a few options for the container runtime (eg. For this cluster, we will be creating a single master node. Kubeadm is capable of creating a highly-available (HA) master and/or a HA etcd database. The master node is the heart of the cluster. When creating a new VM, it is always recommended to update the image OS. This is left as an exercise for the reader. I called the master and worker-01 respectively. I've used a minimum size of 2 CPU and 4 Gb memory for each, on the same network and enabled SSH access to each. We will create a couple of VMs (Ubuntu 20 in this case) where one will be the master node and the other will be a worker. Kubeadm is an open source utility for bootstrapping a Kubernetes cluster. ![]() We are going to use KubeADM to create a cluster from some co-located virtual machines. That said, there's something exciting about working with the nuts and bolts of a Kubernetes cluster. Loaded: loaded (/lib/systemd/system/rvice enabled vendor preset: enabled)Īctive: active (running) since Tue 16:50:12 BST 6s agoĪ few tweaks to the containerd config file are required to get it working properly with Kubernetes.These days, I would recommend using a managed Kubernetes over something you've manually created, especially for production workloads. Update your package list to include the contents of the Docker repository:Ĭheck the containerd service has started up:Ĭrvice - containerd container runtime ![]() $(lsb_release -cs) stable" | sudo tee /etc/apt//docker.list > /dev/null Now you can add the correct repository for your system by running this command: $ curl -fsSL | sudo gpg -dearmor -o /etc/apt/keyrings/docker.gpg
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |