Microk8s vs docker reddit From Googling I've found how to handle a Deployment from YAML using a local Docker image IF I were using minikube, but I'm unsure how to do the same with microk8s, as the guides seem to revolve around the minikube docker-env command. io etc. To make all the stuff work in the cloud I would need kubernetes. All my devs are still using docker but clusters have been containerd for years. Doing high availability with just VMs in a small cluster can be pretty wasteful if you're running big VMs with a lot of containers because you need enough capacity on any given node to Sep 14, 2021 · MicroK8s does not rely on Docker (unlike KinD and Minikube with Docker as driver), and uses containerd as runtime. probably some years ago I would say plain docker/dcompose, but today there are so many helm charts ready to use that use k8s (maybe lightweight version like k3s,microk8s and others) even on single node is totally reasonable for me. I don’t know how performant or simple is swarm compared to k3s but I do know that it lacks features like ingress. That's really important for learning purposes. For testing in dev/SQA and release to production we use full k8s. Its why we see Docker and Docker Swarm used by most PLC vendors that offer containers on their hardware. io, quay. I'd say it's better to first learn it before moving to k8s. I have setup k3s as a 3 node cluster already, but part of me wonders if I should just go for a kubeadm cluster install and have vanilla full fat kubernetes as my base. I am completely new to kubernetes. I'm running microk8s on bare metal, the foremost reason is the docker swarm model: I only need three machines to run the control plane and worker nodes in ha. I like k3s since it's a single binary and it had k3os if you get serious. The big difference is that K3S made the choices for you and put it in a single binary. For anyone used to working with Packer/Terraform this will be pretty simple to grasp. Get the Reddit app Scan this QR code to download the app now If you want to experiment with Kata Containers + Docker (or containerd in Microk8s), just fork & run One of the nodes runs Pfsense, and the other two docker containers like; Vaultwarden, Grafana, Databases, Pterodactyl game-server manager, and duplicati. No pre-req, no fancy architecture. Most of the things that aren't minikube need to be installed inside of a linux VM, which I didn't think would be so bad but created a lot of struggles for us, partly bc the VMs were then Posted by u/[Deleted Account] - 77 votes and 46 comments Docker failed with Docker EE so they pivoted to the developer experience. I use the pauses because the CMD calling the PowerShell script to restart docker doesn't wait and just dies. 04LTS on amd64. The k8s platform market is dominated by a few successful incumbents. It also has a hardened mode which enables cis hardened profiles. If you are not using Docker for Desktop, you can remove the pauses. IIUC, this is similar to what Proxmox is doing (Debian + KVM). Postgres can work fine for reporting & analytics: it has partitioning, a solid optimizer, some pretty good query parallelism, etc. If you want K8s v1. work but I cannot access the dashboard or check version or status of microk8s Running 'microk8s dashboard-proxy' gives the below: internal error, please report: running "microk8s" failed: timeout waiting for snap system profiles to get updated. Its low-touch UX automates or simplifies operations such as deployment, clustering, and enabling of auxiliary services required for a production-grade K8s environment. Apr 20, 2024 · Local Kubernetes environments like Minikube, Kind, Docker Desktop, K3s, and Microk8s provide lightweight, isolated clusters for development and testing. Microk8s also needs VMs and for that it uses Multipass. Still working on dynamic nodepools and managed NFS. I haven't used k3s as well. I'm designing my infrastructure at the moment since I'm still in time to change the application behavior to take advantage of k8s, my major concern was whether I'd be more likely to encounter issues along the road going full vanilla or using an out of the box solution, I'm more of a developer than a sysadmin but I still need to think ahead of time and evaluate whether an easy setup would work Docker compose dir is replicated around via seafile. 6/ For small applications, I think Docker Compose will be enough; there are plenty of ready-made tutorials and examples of how to run nginx, certbot, etc. I tried k3s, alpine, microk8s, ubuntu, k3os, rancher, etc. com Open. In particular, I need deployments without downtimes, being more reliable than Swarm, stuff like Traefik (which doesn't exist for Docker Swarm with all the features in a k8s context, also Caddy for Docker wouldn't work) and being kind of future-proof. Of the 3 Harbor has the nicest Ui, but Nexus has the most features. Proxmox and Kubernetes aren't the same thing, but they fill similar roles in terms of self-hosting. For me the easiest option is k3s. There is more options for cni with rke2. Currently running fresh Ubuntu 22. For my dev usecase, i always go for k3s on my host machine since its just pure kubernetes without the cloud provider support (which you can add yourself in production). Microk8s is kubernetes (maybe think of it as a k8s distro?). docker able to run an amd64 image on arm64(mac m1) but microk8s can't, how can I help microk8s do the same? Using Docker desktop on mac, I'm able to run a bitnami kafka image that was built only for amd64. Docker has dashboards too. You might want to give k3s a try just for the ease-of-use that comes with using a very small binary. k3d makes it very easy to create single- and multi-node k3s clusters in docker, e. What are your thoughts on the matter? If iX moves to a different container engine under kubernetes (and there are many much-better ones available than docker), it could mean docker gets removed as well. Aside from MySQL*, the rest of those databases have great native support for horizontally scaling and replication. all pretty much same same. KIND would be something much closer to upstream than whatever Docker for Mac/Docker for Windows packages, as would Minikube. While they share some similarities, they cater to different use cases and offer distinct features. I know you mentioned k3s but I definitely recommend Ubuntu + microk8s. yml file and run it with an ssh command. This hardly matters for deciding which tool to create/develop containers with. Docker is native on linux - other platforms involve a level of virtualization or emulation. Microk8s monitored by Prometheus and scaled up accordingly by a Mesos service. When you put all those replicas on the same backend storage, you couple the worst-case performance resource constraint bottleneck (usually disk) to a bunch of other (potentially unknown) services. KinD is my go-to and just works, they have also made it much quicker than the initial few versions. You largely have to forego network abstractions with the latter, or use filthy hacks. It can also be deployed inside docker with k3d. It adds a buttload of complexity that is well worth while if you need it but is absolutely overkill and not worth while if you don't need it. Harbor and Docker can do ssl without any external proxies. OpenShift is great but it's quite a ride to set up. service: Unit docker. From my (albiet very limited) experience from managing LXC containers, they aren't a solution to deploying NextCloud from a docker-compose-like file. Also I'm using Ubuntu 20. K8s is enterprise-grade production-level multi-node container management. Just put it on an appropriate piece of hardware, use a dimensional model, and possibly also build pre-computed aggregate or summary tables. If you need a GUI, install portainer. Want to add nodes? Microk8s join. 04, and running "snap install microk8s --classic". 4. One is running PostgreSQL the other is running apache with a Perl CGI script. Nov 8, 2018 · Microk8s is a new solution for running a lightweight Kubernetes local cluster. You can run docker/k8s directly within your Ubuntu guest, yes. Something like Microk8s will provide a better single node Kubernetes experience. But imo doesnt make too much sense to put it on top of another cluster (proxmox). ) from my laptop, but when trying to merge/flatten my ~/. Those are just one more container in your docker-compose RKE and docker swarm lost, Kubernetes won. Docker images today are just OCI images, pretty much all images are. D'Oh! I am experienced with docker and am used to developing with it (I actually love docker) but kubernetes is new to me. For the hypervisor, I don't use ESXi or Proxmox. So I need to translate docker-compose file into kubernetes instructions, using tools like `Kompose`. 13, you need to switch to Docker edge channel). e. Compare Docker vs. 0 Start docker container/compose when URL is accessed r/selfhosted • EmailFlare is a webapp packaged as single worker file, you can configure and self host to send emails from your domain At Portainer (where im from) we have an edge management capability, for managing 1000’s of docker/kube clusters at the edge, so we tested all 3 kube distros. In a way, K3S bundles way more things than a standard vanilla kubeadm install, such as ingress and CNI. GitLab and GitHub are finding substantial success by focusing on the developer (even though their messaging is a consolidated DevOps platform). There is not really much difference from a single Node Swarm vs Vanilla Docker Compose. The security issue mentioned in the article is on the microk8s team todo list and will hopefully be soon resolved. Some co-workers recommended colima --kubernetes, which I think uses k3s internally; but it seems incompatible with the Apache Solr Operator (the failure mode is that the zookeeper nodes never reach a quorum). I would prefer to use Kubernetes instead of Docker Swarm because of its repository activity (Swarm's repository has been rolling tumbleweeds for a while now), its seat above Swarm in the container orchestration race, and because it is the ubiquitous standard currently. I can't really decide which option to chose, full k8s, microk8s or k3s. I've been using it for months and see massive improvements over Docker Desktop distributions. This is why, imo, Docker (as a container platform) is dying - when it was only the docker around, many of its design flaws were overlooked. Not as easy to destroy and start a new K8s cluster. 10. Docker if possible to minimize machines. k. I don't think there's an easy way to run Kubernetes on Mac without VMs. Honestly for one node, docker compose is fine. It's a lot more complicated than docker-compose, but also much more powerful. In the previous articles of the series, we have seen the Get the Reddit app Scan this QR code to download the app now Alternatively, check out kind (Kubernetes in Docker) or MicroK8s. Let’s take a look at Microk8s vs k3s and discover the main differences between these two options, focusing on various aspects like memory usage, high availability, and k3s and microk8s compatibility. Among other things this is needed to run dockerd straight from WSL without any Docker for Desktop shenanigans. minikube has --vm-driver=none which will just use the host's docker daemon, but has some limitations. I think manually managed kubernetes vs Microk8s is like Tensorflow vs PyTorch (this is not a direct comparison, because tensorflow and PyTorch have different internals). Docker Host (2 Core 1GB RAM Centos 8 stream) (Will scale up as needed) *arr/Usenet machine (4 Core 4GB RAM Centos 8 stream) Containers: Bitwarden Heimdall Right now my only future plan is to get suricata setup, but i'm sure i'll be finding plenty of other apps to host as well. 04) and guess what? Docker Desktop has zero support for linux. My goals are to setup some Wordpress sites, vpn server, maybe some scripts, etc. I can say, what you're looking for you're not going to get with docker and docker-compose without building out your own infrastructure. You can choose an environment based on platform support, complexity of setup, flexibility, and community support. I'm a Docker (docker-compose) user since quite a while now It served me well so far. I agree with the Linux sentiment. As for k8s vs docker-compose: there are a few things where k8s gives you better capabilities over compose: actionable health checks (compose runs the checks but does nothing if they fail), templating with helm, kustomize or jsonnet, ability to patch deployments and diff changes, more advanced container networking, secrets management, storage I have been using docker-in-docker in kubernetes pod for various docker operations like image building, image pull and push, saving images as tar and extracting it. I have 2 clusters in my homelab, and its been rock solid for me. Boom. For k8s I'd recommend starting with a vanilla distro like Kubeadm. (no problem) As far as I know microk8s is standalone and only needs 1 node. Nexus is java so its slow to start up and requires an nginx service to act as a reverse proxy for https. So for these containers, I'll be using Docker still. I use Microk8s to develop in VS Code for local testing. Hi, I'm pretty new to docker and one of the things that I find most troublesome are cron jobs inside docker containers. Docker is just there as a container engine, below kubernetes. Ok, but I'm a linux user (pop os 18. on my team we recently did a quick tour of several options, given that you're on a mac laptop and don't want to use docker desktop. minikube and others just significantly simplify the k8s setup process and run best when they have their own VM to work with. or any other services. Note - you'll need Business Edition 2. Mesos, Openvswitch, Microk8s deployed by firecracker, few mikrotik CRS and CCRs. Getting a cluster up and running is as easy as installing Ubuntu server 22. What is Microk8s? These restarts clear the busy file issue. Hey there, I want to upgrade my Docker Homelab into a multi node microK8s Cluster, but the provided options seems not to work. Local Kubernetes for Mac– MiniKube vs Docker Desktop. Portainer will install MicroK8s, configure the cluster and deploy the Portainer Agent for you, getting you up and running on Kubernetes. MicroK8s - Low-ops, minimal Kubernetes, for cloud, clusters, Edge and IoT. podman) but most tutorials/examples are Docker so it's probably a better choice. I'm using Ubuntu as the OS and KVM as the hypervisor. For an individual developer without a paid docker account it really doesn't get you much. Hard to speak of “full” distribution vs K3S. There're many mini K8S products suitable for local deployment, such as minikube, k3s, k3d, microk8s, etc. I've seen a lot of people talking about running Docker in an LXC container or a VM but I've not found any discussions comparing the two. You can run them with any compatible runtime - if you get something today from Docker Hub, then it is an OCI image. As soon as you hit 3 nodes the cluster becomes HA by magic. Docker compose, docker swarm and kubernetes are the docker 'orchestrators' and what you use locally is usually going to mirror production. flant. for local development on Kubernetes. VM for miscellaneous docker-compose services like pull through caches for various registries (docker. Next time around I'll probably start with debian and put docker and proxmox on top, the one VM is all I need usually, but it would be nice to have proxmox to handle other one-offs as k3s/k8s is great. Jan 23, 2024 · Two distributions that stand out are Microk8s and k3s. Add rancher as an UI (put it on a separate single node k3s cluster or docker host, docker will use less memory but only k3s can be upgraded to a HA setup) if you want an even easier time for your team, it's also very nice for "showing" the cluster to management. rke2 is built with same supervisor logic as k3s but runs all control plane components as static pods. 18. service not found. That easy. There are other container runtimes (e. Get the Reddit app MicroK8s, kind, k3s, and Minikube blog. K3s needs 3 + n worker nodes. That said, with WSL2 I'd just avoid Docker Desktop. It doesnt need docker like kind or k3d and it doesnt add magic like minikube/microk8s to facilitate ease of provisioning a cluster. I need to set up a cluster in microk8s with 2 docker containers i have on ubuntu. Docker still uses a VM behind the scenes but it's anyway lightweight. ) so that my Kubernetes nodes do not reach out to the internet every time they want to pull images. Full k8s allows things like scaling and the ability to add additional nodes. Maybe I can go with using docker compose and swarm (v3 integrates between the two). That is not k3s vs microk8s comparison. Also use Docker engine on a Linux VM, rather than Docker desktop on Windows/Mac if you want to explore what's going on. You'll also not get it with docker swarm, which will fight you every step of the way. DIY self-hosted portainer does not have licensing fees and you can manage your k3 or K8 however you want. One for restarting docker. Thus the manual hotkey. Docker for Mac/Windows now ships with a bundled Kubernetes offering. Ubuntu) It sets the cluster to multiple master clusters automatically if the node count exceeds three. I have done some searching and i found stuff about adding nodes to a cluster but i havent found anything about how to create these nodes? Based on personal experience, I have only worked with Cloud managed K8S clusters (AKS, EKS) for over an year. a. The contribution of this paper is a comparison of MicroK8s, k3s, k0s, and MicroShift, investigating their minimal resource usage as well as control plane and data plane performance in stress scenarios. But now as Kubernetes has deprecated the dockerd and most of managed K8s cluster are using containerd. If you have use of k8s knowledge in work or want to start using AWS etc, you should learn it. https://k3d. Then on the ashes of old-timers, RKE2 rancher standalone Kubernetes distribution was born. Welcome to /r/SkyrimMods! We are Reddit's primary hub for all things modding, from troubleshooting for beginners to creation of mods by experts. Wrote a blog post detailing step-by-step how to deploy a k3d cluster in docker Do you happen to know if k3s can survive network changes to the host like microk8s can? Right now im forced into mk8s or docker desktop for the edge nodes that have changing ips on the public internet adapter. I'm not entirely sure what it is. Also, I assigned a couple Windows hot keys. k3d vs k3s vs kind vs microk8s vs minikube : a comprehensive guide to choose for local Kubernetes development !! Docker is a lot easier and quicker to understand if you don't really know the concepts. I could never scale a single microk8s to the meet the number of deploys we have running in prod and dev. For WordPress, there are Helm I'm a beginner setting up a "Hello world" type Deployment using microk8s on Ubuntu. Eh, it can, if the alternative is running docker in a VM and you're striving for high(ish) availability. You can configure your host kubectl to point to the MicroK8s cluster, as an extra step. Edit: I think there is no obvious reason to why one must avoid using Microk8s in production. You can use a tool like kompose to convert docker compose files to kubernetes resources. Microk8s is similar to minikube in that it spins up a single-node Kubernetes cluster with its own set of add-ons. MicroK8s has addons as for example mayastor, which is great in theory, but it only creates 1 of 3 pools and keeps failing. My assumption was that Docker is open source (Moby or whatever they call it now) but that the bundled Kubernetes binary was some closed source thing. MicroK8s using this comparison chart. Full kubernetes vs k3s microk8s etc… for learning with a cluster I’ve bought 3 minipcs for the sole purpose of kubernetes self hosting and learning. Or, not as far as I can tell. Desktop Docker. One for running the backup script. It also handles multimaster without an external database. Those deploys happen via our CI/CD system. 1 LTS Exiting due to RT_DOCKER_EXIT_5: sudo systemctl start docker: exit status 5 stdout: stderr: Failed to start docker. Docker is not used directly, even though the name "launch docker" suggests otherwise. Vlans created automatically per tenant in CCR. For a homelab you can stick to docker swarm. Most people just like to stick to practices they are already accustomed to. k3d is a lightweight wrapper to run k3s (Rancher Lab’s minimal Kubernetes distribution) in docker. Since I use linux I'm using microk8s for my kubernetes local environment. UPDATE Minikube is much better than it was, having Docker support is a big win, and the new docs site looks lovely. Compare price, features, and reviews of the software side-by-side to make the best choice for your business From the microk8s config, all of them are named 'microk8s-cluster'. Like minikube, microk8s is limited to a single-node Kubernetes cluster, with the added limitation of only running on Linux and only on Linux where snap is installed. io/v5. On Mac you can create k3s clusters in seconds using Docker with k3d. kube/config file, changing the context will set to the first instance found with that particular name. The Kubernetes that Docker bundles in with Docker Desktop isn't Minikube. Docker still produces OCI-compliant containers that work just fine in K8s. I manage all of them (and other AKS, Kubernetes, GKE, etc. EDIT: RKE now works beautifully again, I just had to pin a specific docker-version, which was perfectly documented, I was just too thick-headed to read it and follow it. Pick your poison, though if you deploy to K8S on your servers, it makes senses to also use a local K8S cluster in your developer machine to minimize the difference. I use Lens to view/manage everything from Vanilla Kubernetes K8s to Microk8s to Kind Docker in Kubernetes. I tried it and shared my experience, so other trying out microk8s are aware of the unexpected implications that I ran into myself. Both provide a cluster management abstra The ramp up to learn OpenShift vs deploying a microk8s cluster is way steeper. Using Windows + Powershell + Task Scheduler you can write a series of monitors that can restart the service if st Jun 30, 2023 · MicroK8S It is lightweight K8S, developed by Canonical(a. Otherwise I'd just stay with Docker Swarm. g. I have it running on my Windows Laptop. Questions: - What is better a single docker swarm or multiple docker hosts per VLAN? - How does the storage work within the docker swarm? Currently, all docker containers use binds. Docker stable channel ships with K8s v1. Sometimes that doesn't work for me so I will do a standalone docker installation and just use the standalone docker partainer install. Docker - Enterprise Container Platform for High-Velocity Innovation. 04 on WSL2. Had a swarm which also worked great but went back to 1 box because of electricity costs vs bragging rights. 2 to access this feature. It has allowed me to focus on transforming the company where I work into Cloud Native without losing myself in the nitty-gritty of Kubernetes itself. Lens is great because it can see / manage more than one cluster all from one spot. Docker is no longer supported as a containerd for K8s. You can use the official docker documentation to get a registry up in 2 seconds but you dont get a UI. By far! Rancher is awesome - its shipped as a docker container, so install docker, do a docker run command, and you can do the rest (setup cluster etc) in the web UI that the initial docker container provides. Installs with one command, add nodes to your cluster with one command, high availability automatically enabled after you have at least 3 nodes, and dozens of built in add-ons to quickly install new services. I know k8s needs master and worker, so I'd need to setup more servers. Doing some research it seems there have been mainly three different approaches to solve this problem: use Dockerfile HEALTHCHECK create a bash infinite loop use the host system cron and docker exec Docker stack files, and nomad job specs are certainly not compatible. Deploying microk8s is basically "snap install microk8s" and then "microk8s add-node". I was interested in exploring microk8s in general and as an option for CI/CD workloads. Strangely 'microk8s get pods', 'microk8s get deployment' etc. . What's the advantage of microk8s? I can't comment on k0s or k3s, but microk8s ships out of the box with Ubuntu, uses containerd instead of Docker, and ships with an ingress add-on. But I want to automate that process a little bit more, and I'm kinda facing my limits with bash scripting etc. 💡 Suggestion: Ensure that Docker is installed and healthy: Run 'sudo systemctl start docker' and 'journalctl -u docker'. I can't speak to vanilla k8s, but it's performance is comparable to microk8s For a new role at work, production will be on either of Amazon or Azure's hosted Kubernetes; but development will be done locally on a mac. It's not good for reimplementing and centralizing what you have. Personally- I would recommend starting with Ubuntu, and microk8s. MicroK8s is the easiest way to consume Kubernetes as it abstracts away much of the complexity of managing the lifecycle of clusters. Swarm is good for pure stateless, replicated nodes. My CI/CD is simple, I build my app image in CI, and for CD I just push (scp) to my VPS the docker-compose. 04. But anyway - many commands with Docker? That’s not really a plattform issue. Cluster is up and going. TLDR: in production use RKE2, in Homeland or development use whatever suits you,for example minikube. Eventually they both run k8s it’s just the packaging of how the distro is delivered. That said, I don't advise using docker-compose for production when microk8s now exists personally, and predominantly on my team, minikube with hyperkit driver. We ask that you please take a minute to read through the rules and check out the resources provided before creating a post, especially if you are new here. K8S has way more ”kubectl-typing” than Docker anyway. In my opinion, the choice to use K8s is personal preference. It also offers features, that are not present in docker, but somebody wanting to migrate, there are hurdles: the API does not support network configs, yet and therefore tools like traefik will not work with the docker provider currently docker compose is not fully supported, which will change with podman 3. I agree that setting up Lens and maybe another one as a supplement. Nomad can use (being it's a hashicorp product) HCL for job definitions. MicroK8s comes with its own packaged version of kubectl, and you use that with “microk8s kubectl” command, which is not convenient. ℹ️ OS release is Ubuntu 20. If needed, you can add another couple of servers and run some services on one node and some on another. as I understand it the flow goes like this - I'm working with docker to create an image, and I'm using docker-compose to work with multiple images. (I think) Swarm is dying and really a Multi Node version of Docker-compose. This means it can take only a few seconds to get a fully working Kubernetes cluster up and running after starting off with a few barebones VPS running Ubuntu by Aug 28, 2024 · MicroK8s and Docker Desktop are two popular tools for managing containerized applications on your local machine. k8s generally sounds way over-complicated for this, something to manage docker containers might be better, but if you're doing this for a paying client, you ought to use a thing you know and can do competently. May 16, 2022 · Canonical and microk8s All Linux distributions have some kind of CAAS (container as a service offering) basically using the upstream Kubernetes and building enterprise wrappers providing either opinionated PaaS solutions (like openshift ) or their own Kubernetes distributions and services like canonical’s Kubernetes distribution. It's particularly handy if you're on a corporate desktop and don't want to deal with the DfD license funk or merging the two environments. Also, the format isn't all that different. However: Kubernetes versions are tightly coupled with the Docker version (i. As to k3s, I have no experience with it, so take it with a grain of salt. It's easy to install docker and docker-compose on a Linux distro. rbdj hbznsd ufs qajpd otsxbni pauf comma sixorrl gmdkn nnccg hrhsrn jpqt fklsw kinx mfw