k3s-oci-cluster
containerd
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k3s-oci-cluster | containerd | |
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6 | 125 | |
210 | 16,292 | |
- | 2.1% | |
0.0 | 9.9 | |
5 months ago | 7 days ago | |
HCL | Go | |
GNU General Public License v3.0 only | Apache License 2.0 |
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k3s-oci-cluster
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K8s cluster with OCI free-tier and Raspberry Pi4 (part 1)
After you've cloned the repo, go to oci/terraform.tfvars and edit all values with the ones from your notes file. This build uses the great terraform configuration files from this repo of garutilorenzo (using version 2.2; if you have errors running all of this, you should check what changed in this repo since v2.2, or 01.02.23). You can read here if you want to customize your configuration and edit the main.tf file. This is the diagram that garutilorenzo made and how your deployment will look like (this tutorial is without Longhorn and ArgoCD, with 1 server nodes + 3 worker nodes and with ingress controller set as Traefik): *note - I've got some problems with clock of WSL2 not being synced to Windows clock. And provisioning didn't worked so if you receive clock errors too, verify your time with datecommand, if out of sync just run sudo hwclock -s or sudo ntpdate time.windows.com. Now just run terraform plan and then terraform apply. If everything was ok you should have your resources created.
- Is there a step by step guide to Oracle Free Tier setups?
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OCI free Kubernetes cluster, new terraform module release
This new release v2.0 introduces:
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Deploy Kubernetes (K8s) on Amazon AWS using mixed on-demand and spot instances
We use the same stack used in this repository. This stack need longhorn and nginx ingress.
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Deploy a Kubernetes cluster for free, using k3s and Oracle always free resources.
This module will deploy a Kubernetes cluster for free, using K3s and Oracle always free resources.
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Deploy a Kubernetes cluster for free, using K3s and Oracle always free resources
Var Required Desc region yes set the correct OCI region based on your needs availability_domain yes Set the correct availability domain. See how to find the availability domain compartment_ocid yes Set the correct compartment ocid. See how to find the compartment ocid cluster_name yes the name of your K3s cluster. Default: k3s-cluster k3s_token yes The token of your K3s cluster. How to generate a random token my_public_ip_cidr yes your public ip in cidr format (Example: 195.102.xxx.xxx/32) environment yes Current work environment (Example: staging/dev/prod). This value is used for tag all the deployed resources compute_shape no Compute shape to use. Default VM.Standard.A1.Flex. NOTE Is mandatory to use this compute shape for provision 4 always free VMs os_image_id no Image id to use. Default image: Canonical-Ubuntu-20.04-aarch64-2022.01.18-0. See how to list all available OS images oci_core_vcn_cidr no VCN CIDR. Default: oci_core_vcn_cidr oci_core_subnet_cidr10 no First subnet CIDR. Default: 10.0.0.0/24 oci_core_subnet_cidr11 no Second subnet CIDR. Default: 10.0.1.0/24 oci_identity_dynamic_group_name no Dynamic group name. This dynamic group will contains all the instances of this specific compartment. Default: Compute_Dynamic_Group oci_identity_policy_name no Policy name. This policy will allow dynamic group 'oci_identity_dynamic_group_name' to read OCI api without auth. Default: Compute_To_Oci_Api_Policy kube_api_port no Kube api default port Default: 6443 public_lb_shape no LB shape for the public LB. Default: flexible. NOTE is mandatory to use this kind of shape to provision two always free LB (public and private) http_lb_port no http port used by the public LB. Default: 80 https_lb_port no http port used by the public LB. Default: 443 k3s_server_pool_size no Number of k3s servers deployed. Default 2 k3s_worker_pool_size no Number of k3s workers deployed. Default 2 install_longhorn no Boolean value, install longhorn "Cloud native distributed block storage for Kubernetes". Default: true longhorn_release no Longhorn release. Default: v1.2.3 unique_tag_key no Unique tag name used for tagging all the deployed resources. Default: k3s-provisioner unique_tag_value no Unique value used with unique_tag_key. Default: https://github.com/garutilorenzo/k3s-oci-cluster PATH_TO_PUBLIC_KEY no Path to your public ssh key (Default: "~/.ssh/id_rsa.pub) PATH_TO_PRIVATE_KEY no Path to your private ssh key (Default: "~/.ssh/id_rsa)
containerd
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Exploring 5 Docker Alternatives: Containerization Choices for 2024
Containerd and nerdctl
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The Road To Kubernetes: How Older Technologies Add Up
Kubernetes on the backend used to utilize docker for much of its container runtime solutions. One of the modular features of Kubernetes is the ability to utilize a Container Runtime Interface or CRI. The problem was that Docker didn't really meet the spec properly and they had to maintain a shim to translate properly. Instead users could utilize the popular containerd or cri-o runtimes. These follow the Open Container Initiative or OCI's guidelines on container formats.
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Fun with Avatars: Containerize the app for deployment & distribution | Part. 2
Container Engine: A runtime that executes and manages containers. Docker and containerd are popular container engines.
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Complexity by Simplicity - A Deep Dive Into Kubernetes Components
Multiple container runtimes are supported, like conatinerd, cri-o, or other CRI compliant runtimes.
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macOS Containers v0.0.1
This is a failed attempt to upstream part of containerd changes: https://github.com/containerd/containerd/pull/8789
Other part of containerd changes waits for gods-know-what: https://github.com/containerd/containerd/pull/9054
But I haven't gave up yet.
- Latest versions of Docker cause memory leak in MySQL 5.7
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Kubernetes Setup With WSL Control Plane and Raspberry Pi Workers
containerd is required by kubernetes to handle containers on its behalf. A big thanks to the HostAfrica blog for the information on setting containerd up for debain. So the containerd install will need to happen on both the WSL2 instance and the Raspberry Pis. For WSL2 you can just install containerd directly:
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Bingo of the Kubernetes problems I found myself debugging over the past weeks. AMA :p
The context deadline exceeded: unknown is also in containerd, and is a known problem.
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Hi peeps, I am getting error installing docker. Now let me give you some context. I was trying to install docker on the google colab notebook. As google colab is ubuntu under the hood. So I just followed the docker linux terminal installation commands.
Get:1 https://download.docker.com/linux/ubuntu focal/stable amd64 containerd.io amd64 1.6.21-1 [28.3 MB]
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Docker Explained - Again
Docker Desktop adds a bunch of stuff to simplify local development and that’s why it has a larger memory footprint. You don’t use that when deploying but something like https://containerd.io/.
What are some alternatives?
oracle-cloud-terraform-examples - Oracle cloud terraform examples, provision oracle cloud resources using terraform
podman - Podman: A tool for managing OCI containers and pods.
k3s-aws-terraform-cluster - Deploy an high available K3s cluster on Amazon AWS
cri-o - Open Container Initiative-based implementation of Kubernetes Container Runtime Interface
longhorn - Cloud-Native distributed storage built on and for Kubernetes
Moby - The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems
terraform-oci-tdf-network-security - (OCI) Oracle Cloud Infrastructure module to manage security policies
podman-compose - a script to run docker-compose.yml using podman
flannel - flannel is a network fabric for containers, designed for Kubernetes
colima - Container runtimes on macOS (and Linux) with minimal setup
terraform-hcloud-kube-hetzner - Optimized and Maintenance-free Kubernetes on Hetzner Cloud in one command!
sysbox - An open-source, next-generation "runc" that empowers rootless containers to run workloads such as Systemd, Docker, Kubernetes, just like VMs.