Nixos containers However, flake-containers enables the definition and management of NixOS containers However, I was wondering if there was a better method to manage my docker containers as I am using NixOS now. io/wg-easy/wg Caddy is a simple open-source web server. I don’t believe rootless podman is very well supported yet on Nix. Profpatsch; Lewo; MoreTea; Tooling. It is a bit ugly, but it’s . Lines 31-43: These lines define our “WordPress” container. cri". containerd. NixOS’ containers allow you to run separate lightweight NixOS instances on the same machine. What is happening is the containers can connect to host but NixOS containers and OCI (“Docker”) containers are two entirely separate things. Their systemd units are named container@name. Channel: There’s no squashfs step for NixOS containers, they share the host’s nix store. docker: How do I add capabilities as the NixOS setting is under containers. We chose LXC over systemd-nspawn because of unprivileged users support among other security features. Is it possible to define that a certain directory should be present with Nix? The only thing I found is about systemd. Additional information regarding the Nix package manager and the Nixpkgs project can be found in respectively the Nix manual and the Nixpkgs I recently setup LXD on my NixOS machine in order to run a guest NixOS container. I’m using it here to get list of all containers and alter imports and overlays in each of them. NixOS option set virtualisation. Updated Sep 3, 2024; Nix; Improve this page Add a description, image, and links to the nixos-container topic page so that developers can more easily learn about it. Hello, I am currently trying to use NixOS containers as an additional layer of isolation between applications. v1. 2020-12-28 . This question could be dismissed by saying that Nix and Docker are different tools that solve different problems. The port forwarding works and I am able to access the services within the container from my host over From the doc: containers. Systemd-nspawn is like a supercharged chroot , harnessing the capabilities of the Linux kernel, using cgroups and namespaces to provide isolation within a container. Essentially it’s much like running the software inside a Virtual Machine; but with significantly less overhead (for a very small loss in security). 11 manual | Nix & NixOS): Warning: Currently, NixOS containers are not perfectly isolated from the host system. All attributes of specialArgs. Help. specialArgs, which is probably the correct way to do this. For a normal nixosSystem, I’d just add it to the list of modules like so:. nixosSystem function with boot. oci-containers. Then I’m using flake-utils. By default, LXD pushes you to use what they refer to as a I’m trying to write a declarative container and am having issues with host name resolution: Setting this in my container’s config entry did not help: networking. target is also reached (which is why systemd thinks it has a working connection), however the uplink is broken until the container is fully started up since the host-side interface will be configured in It's worth mentioning that while there already exists a way to manage NixOS containers using nixos-container, it integrates within a NixOS configuration. It’s fantastic now NixOS experience with configuration. In this case, extra-container (and NixOS containers) won’t exactly fit your requirements, because you probably want to use unprivileged containers (not yet supported by NixOS containers) and want to manage the container instances as subprocesses of your web app (and not as systemd services). sydney October 20, 2023, 8:20pm 1. Odd! What does docker network inspect lavalink give you when the containers are running?. Tailscale inside containers can use userspace networking mode to avoid needing host tunnel Is there a good way to deploy Docker containers on a NixOS machine declaratively, either with nixops or nixos-rebuild? Or would docker-compose be my best bet? Normally I would use native nix packages, but some packages are a bit cumbersome to setup and docker is supported by upstream or it needs manual setup steps that the docker container has With Cockpit Podman Containers you can manage Podman containers in your browser. Thanks! Nextcloud runs in a NixOS container with Postgresql, Redis, and nginx. For the life of me I cannot put my finger on why I am unable to cURL my traefik instance running via oci-containers. 0 -> 1. <name>. It currently hosts a handful of popular docker images using rootless podman (eg. Although the host is not ephemeral, all the non-reproducible data is stored on /persistent or /mnt/box-plain with the exception of the SSH key used to Hi! well the oci-containers are opaque from the point of view of the rest of the configuration - they are just images that are configured to run automatically via either podman or docker runtime. Been at this for like a week, searching through wikis and forums, so its not like I haven’t read the wiki. It means that the host needs to keep the GC root and deployed containers in sync. nix. From a quick glance over the Search results there doesn’t seem to be a direct equivalent there, but you might be able to do something via the extraOptions escape hatch. The NixOS option description explains this, among other things: NixOS Search. #nixos-container And run it. Run Podman containers as systemd services {virtualisation. The users will be accessed only via sudo -su user / sudo su user. mount-nvidia-executables, hardware. NixOS image NixOS option set virtualisation. docker-containers in NixOS 20. Wide variety of linux distro images are available, including for NixOS . nix applies to containers almost without any difference, I usually go by writing a container declaration like try = { autoStart = true; config = { config, pkgs, Hello! I’m not 100% sure, but I think there’s no way to configure containers from flakes. These given instructions are known to be working in december of 2024 on ProxmoxVE v8. eachDefaultSystem improperly in the flake for log2ban. Or, what is the recommended way of storing secrets for nixos-containers? NixOS Discourse Secrets inside nixos-containers. I am brand new to NixOS, so I am assuming I am missing something obvious, but alas, I have been unable to find it. Using podman with ZFS. nixos-container = pkgs. Looking at Now I want to create users that I’ll use to run Podman containers. I can run one with nixos-container update <name> --flake but I can’t find way to to specify bind mounts (as in declarative container config). isContainer set to true. I have run your command on my machine and it also succeeds: > nc -v -u 192. Looking at my older setup - the NixOS option set hardware. enable = true and it’ll configure containerd for you as well. Here’s how Add a description, image, and links to the nixos-container topic page so that developers can more easily learn about it. This is simply the kernel providing certain features in a namespaced way, so that processes cannot overlap them; everything still runs in the same address space, and with the same kernel. Docker is available in nixpkgs, which is the preferred way to install it on NixOS. Let’s say I was using an Ubuntu image; are there any guides out there for Go to NixOS r/NixOS. The first step is to load the NixOS container image onto my Proxmox host as a CT template, so that new containers can be created with this base image. Tailscale inside containers can use userspace networking mode to avoid needing host tunnel I’m trying to implement mountOptions for bindMounts in nixos Containers described in this issue to do a PR later. I do think a type system/schema would make this more obvious. 9"; autoStart = true; extraOptions = ["- In this case, extra-container (and NixOS containers) won’t exactly fit your requirements, because you probably want to use unprivileged containers (not yet supported by NixOS containers) and want to manage the container instances as subprocesses of your web app (and not as systemd services). This is the "checkSupportsV6NAT" function in the tailscale codebase. extraOptions = [ "--network=immich-bridge" ]; And create the bridge with The ‘nixos container’ puts everything inside a somewhat secure environment that prevents anything inside “touching” the host machine. rules, but on mynixos. Additional information regarding the Nix package manager and the Nixpkgs project can be found in respectively the Nix manual and the Nixpkgs Is there a good way to deploy Docker containers on a NixOS machine declaratively, either with nixops or nixos-rebuild? Or would docker-compose be my best bet? Normally I would use native nix packages, but some packages are a bit cumbersome to setup and docker is supported by upstream or it needs manual setup steps that the docker container has People. Adding In this tutorial, you will learn how to build Docker containers using Nix. This week we’re having a look at how to do the same with systemd’s systemd-nspawn facility via the machinectl While docker-compose allows you to compose your containers with a yaml/Dockerfiles, NixOS allows you to compose the system that all of your containers run on NixOS option set containers. OCI containers are run as in other distros (e. In many discussions about Nix, the comparison of Nix and Docker comes up frequently. Similar to nixos-shell (chrisfarms). Add a bridge to the extraOptions variable to all the containers. org. GitHub - jlesage/docker-makemkv: Docker container for MakeMKV I have port forwarding set up in nixos-containers and a wireguard interface wg0, and I am trying to set up networking. defaultGateway = "192. override inherit stateDirectory configurationDirectory; # The container's init script, a small wrapper around the regular containers Github project: golang libraries for interacting with containers image: library used by skopeo; oci-fetch: CLI tool for fetching OCI containers over various transports; awakesecurity hocker: fetch from docker (v2) registry and generate nix derivations; Nix images. I use Caddy as a local reverse proxy to access software within containers via a domain name served over HTTPS. My configuration is probably easy to translate to Podman or Docker running on another OS. device-name-strategy, hardware. If you click to open in remove container, dev environment should be built automatically and after you should be ready to start coding. I successfully installed nvidia, and nvidia-smi from the shell works well. 2 # No response after opening socket curl Using nvidia-container-runtime with containerd on NixOS Help. nix and consulting the NixOS options index. I have on my configuration. nvidia-container-toolkit: 1. I don’t want to create them manually. el, static site deploys, a job - Published on Thu Jun 27 2019 . I’ve used them for ripping my DVD collection and transcoding them, has been great! GitHub. allowedDevices, containers. NixOS containers spawn an entire NixOS instance using systemd-nspawn and are defined using containers. There are a few images that contain Nix with various trade-offs: Extra-container is a run declarative NixOS containers from the command line. Be aware that the The hostBridge option is one from nixos-containers and systemd-nspawn configuration, and doesn’t apply for oci-containers. Simplify it with NixOS and containers. . my-custom. The image is intended to be deployed on a non-NixOS server later, but testing it locally on my NixOS machine with lxd was pretty straightforward. The configuration takes some settings from this pull request by mkg20001 awaiting its merge. additionalCapabilities? NixOS Discourse Adding capabilities to a Nix Flake Container. Here is the configuration for my container traefik = { image = "traefik:v2. In this tutorial, you will learn how to build Docker containers using Nix. You can always use full virtualization of operating systems too (like KVM/QEMU, VirtualBox, VMware). "io. Bridge appears on host machine, but when I root login to the container it doesn’t show up, and internet is unaccessible. opencontainers. stateVersion to “22. Something like this should be possible with (nixos-)containers, which use the same configuration and NixOS modules as the host system. To install docker, add the following to your your NixOS configuration: More options are available. Looking at my older setup - the cfg. By contrast, in the imperative approach, containers are configured Hello, I am currently trying to use NixOS containers as an additional layer of isolation between applications. Are you on unstable? I was looking to use a VSCode Devcontainer on NixOS, but this $ nix build . 0. So you should not give container root access to untrusted users. It would be nice to have the containers update automatically everytime the code changes, so I tried to set up a systemd service and timer that update the containers. Im a nix newbie. It demonstrates how to use Nix(OS) for all layers of a server stack. Use Podman within nix-shell From NixOS Wiki You can containerize services in different OS level virtualization systems (like Docker, Podman, LXC). It's also why you wont' find a nixos related configuration. I am currently using Nix Flakes to create containers by using the nixpkgs. zzz September 3, 2024, 7:07pm 1 i created a network docker network create lavalink and restarted the services and ran prune and it wasn’t used for either container. plugins. NixOS can be run in containers using Arion. I wouldn’t be so sure about nc -v -u test. For VMs, see microvm. Is there a way to access secrets from tools like sops-nix or agenix inside nixos-containers, considering these tools expose secrets in the host filesystem which isn’t available I am using declarative containers on one machine that is defined in a Nix flake and I want to use nixosModules from third party Nix flakes, in this case, simple-nixos-mailserver. systemd-nspawn (underlying NixOS containers): uses kernel namespaces, which crucially are not virtualization technology. podman-compose is a drop-in replacement for docker-compose. e. Mach-nix is a tool that makes it easy to create and share reproducible python environments or packages. 1 NixOS’ containers allow you to run separate lightweight NixOS instances on the same machine. This project has been largely inspired by nixos-containers (in fact, most of the code comes from there). However, our use-case container runtime (systemd-nspawn is container runtime behind the NixOS containers) has to create it to mount sockets. Current configuration. bindMounts Ive been trying to setup wg-easy {config, }: { sops. Be aware that the hosts home directory is always mounted, even if you specify a custom home directory. When connecting to a public Wi-Fi, where the login page's IP-Address is within the Docker network range, accessing the Internet might not be possible. podman-compose. Is there any detail why there’s that limitation and if lib: The nixpkgs library. The hypervisor, which includes network stack configuration along with libvirt, qemu, and kvm. For a container running on a NixOS host, this path would be /run/opengl-driver/lib, plus targets of the symlinks therein. But, in the end, pulling new images and I am using declarative containers on one machine that is defined in a Nix flake and I want to use nixosModules from third party Nix flakes, in this case, simple-nixos-mailserver. 9. The podman network create defaults include DNS, so if you don’t hand-craft a json for it that isn’t necessary. * options. One is a toolkit for building and deploying containers and the other is a package and configuration manager. "dev-update" = { wantedBy = [ However, I am having issues connecting the containers to each other. Install the browser and apulse: [root@browser:~] $ su-browser [browser@browser:~] $ nix repl Welcome to Nix version 2. lib. nvidia-container The configuration and state directories used by nixos-containers have been moved from /etc/containers and /var/lib/containers to /etc/nixos-containers and /var/lib/nixos-containers. nvidia-container-toolkit contains 9 NixOS options across 2 NixOS option sets, including hardware. However, I am having issues connecting the containers to each other. Whereas option values can generally depend on other option values thanks to laziness, this does not apply to imports, which must Don’t forget to enable DNS for containers and the container names will automatically be used as the hostnames. The VM stack, which includes the bits to run Kubernetes. nixos-container destroy container do Yes, very nice stuff! I recently used nixos-generators to create an lxc image that starts up, performs a task, and shuts down again. LXD has support for many different types of networking setups. 168. ↩︎ See my post Moving from Linux to macOS ↩︎. 0-rc. A simple extra-container builds and starts within ~2 sec on a desktop system with warm caches. deliciouslytyped November 18, 2020, 4:23pm 15. nix: { config, pkgs, lib, }: { networking. 3. Configuration. Nixcloud-webservices is a set of nixpkgs extension for web-related technologies. oci-containers contains 23 NixOS options across 3 NixOS option sets, including virtualisation. In the docker world this interface doesn’t exist at all, but now we know this is about podman that’s a bit easier I’m playing with flake-based nixos containers. 250. oci-containers. I saw the note in NixOS manual (NixOS 23. nat to nat the virtual interfaces from the containers to the wireguard interface to get internet connection in the containers over the wireguard. You can build reproducible desktops, servers, deployment artifacts — anything, using your own configuration. 10 1234 port [udp/search-agent] succeeded! Since NixOS 20. News A set of patches to build Redox on NixOS An attempt to embrace Nix instead of constantly working around the limitations to build Redox OS. Eg 2 containers: Host: ping c1 and ping c2 successful. earvstedt November 1, 2020, 6:57pm 8. Curate this topic As many cloud platforms offer Docker-based container hosting services, creating Docker containers for a given service is a common task when building reproducible software. Use Podman within nix-shell A flake providing a framework for steamlined declarative management of NixOS containers and VMs. In other words it shouldn’t be possible to for example SSH into the user. I’m asking because I think we should want to integrate the solution into nixpkgs. A set of NixOS system configurations to be run as lightweight containers. target is also reached (which is why systemd thinks it has a working connection), however the uplink is broken until the container is fully started up since the host-side interface will be configured in Yes, very nice stuff! I recently used nixos-generators to create an lxc image that starts up, performs a task, and shuts down again. The file systems to be mounted Yeah this is actually a known issue with NixOS containers. nix file either in the image (as asked here: Where is the Nixos configuration located for the nix image on dockerhub? There seems to be some issues with running Nixos in I saw the note in NixOS manual (NixOS 23. containers option/containers. nixos-container. specialArgs: The specialArgs argument passed to evalModules. Search more than 20 000 options. secrets. One thing I’m having trouble with is networking: I want containers to not be able to access eachother by def Thanks, this might be the right way to go; I avoided it because I am running this on a physical dedicated server, which Hello, I have been experimenting with NixOS declarative containers and have some questions. containers since it only works with docker or When you open a project vscode should ask you to open project in remote container. I don’t think that docker will unintuitively interpret a network name that is equal to a container name (because there is special functionality around Declarative NixOS containers. A set Thanks for the hint, I’ve just noticed that it works on localhost: sudo nixos-container run nextcloud -- curl -L 127. This approach When showing Nix or NixOS to newcomers, the first instinct is often to run the NixOS Docker image on Docker or Podman. Additional information regarding the Nix package manager and the Nixpkgs project can be found in respectively the Nix manual and the Nixpkgs This manual describes how to install, use and extend NixOS, a Linux distribution based on the purely functional package management system Nix, that is composed using modules and packages defined in the Nixpkgs project. nix: Hi! I am working on setting up an etcd cluster with nix containers along the lines of this config. Search. Hi! well the oci-containers are opaque from the point of view of the rest of the configuration - they are just images that are configured to run automatically via either podman or docker runtime. NixOS Discourse GUI app in Docker container. If you're not on NixOS, this cannot be supplied by the Nix package 'shadow' since setuid/setgid programs are not currently supported by Nix. Alternativelly you can choose Remote-Containers: Reopen Folder in Container from command menu. Each declarative container adds a full system module evaluation to every NixOS rebuild, which can be prohibitively slow for systems with many containers or when experimenting with single containers. This manual describes how to install, use and extend NixOS, a Linux distribution based on the purely functional package management system Nix, that is composed using modules and packages defined in the Nixpkgs project. nextcloud having options to automatically setup a database + redis cache), but I’m having trouble isolating them. nvidia-container-toolkit. If you encounter issues with IPv6 not working through your NixOS-based exit node, this might be an issue with the tailscale client's detection of whether IPv6 NAT is supported. nix file. mail = nixosSystem' rec { system = "x86_64-linux"; modules = [ simple-nixos-mailserver. r/NixOS. The container has to mount some directories (bind volumes) - see the code below. I found nix-mk-shell-bin which says it’s “nix shell but at build time”. In addition to the above, some of the extensions are also compiled in such a way that they may or may not be nixcloud-container is a Nix based wrapper around LXC, mainly to manage unprivileged LXC containers within NixOS. The name of the docker image is a bit confusing as the parent/user is nixos in (nixos/nix). You will need both Nix and Docker installed. 0/24); IP of the Master: 10. But its data is still there (I learned that when I create another container with the same name). It uses systemd-nspawn to manage the container instead of docker, so not sure if that breaks your usecase, but that is the I follow this example to create my configuration: Running Isso on NixOS in a Docker container. Some tidbits I’ve learned: I’ve had to go back to running containers as root, but using the user="1000:100" directive in the container nix description to drop back to user privileges. This means that a user with root access to the container can do t I have been trying to implement nix local overlay store in a docker container, i have done nix single-user installation in dockerfile, it looks like this FROM ubuntu:latest RUN apt-get update && apt-get install -y sudo xz-utils curl vim && rm -rf /var/lib/apt/lists/* RUN groupadd -g 1024 valnix && useradd -u 1024 -m -g valnix -s /bin/bash valnix && echo ‘valnix ALL=(ALL) Run NixOS containers in lxd. tmpfiles. I’m using it mainly for developing services and NixOS features, but it may also be useful for your task. This can be interesting if you want to deploy multiple services on the same Docker is a utility to pack, ship and run any application as a lightweight container. Create a NixOS container with a specific configuration file $ sudo nixos-container create [container_name] --config-file [nix_config_file_path] Start, stop, terminate, or destroy a specific container $ sudo nixos-container [start|stop|terminate|destroy|status] [container_name] Hello, I have nixos-containers run on a server to test and preview my dev builds and my current workflow includes updating the containers manually. I have been running podman containers on top of nix-stable for several months now. Also (just for reference), it took me a while (being a nixnoob) to see that the “toplevel” containers option (for nixos-containers) is in fact a way to leverage the inherent “containment” capability of nix to start one or more packages in an orchestrated fashion with their isolated configs, thereby achieving the same as docker/podman I think you need a network bridge so the containers can communicate. 2 IP of I think other people have had similar issues: Packaging request for VSCode Extension: Remote - Containers · Issue #182397 · NixOS/nixpkgs · GitHub. Then, I first followed common sense and created a config similar to what nvidia suggests in my configuration. I don’t have the time to list out everything I did step by step or to sift through my configuration to find exactly what I changed but here are snippets. useHostResolvConf = true; My resolv. Instead of installing Nix globally, for a project, I’d like to try to have it installed in a Docker container then leverage docker compose to run nix commands like nix build or even nix develop, if that’s possible. Ok thanks, I have no idea what I was doing then. allowedDevices contains 2 NixOS options across 1 NixOS option set, including containers. However, these tools do have some overlap: they can I’ve started using nixos-container instead of keeping a separate NixOS VM to experiment with things independently from the main system and each other. Is it even possible? I can’t figure out how to have declarative container with flake either. Linux containers provides installation instructions, including for nixos . It is a community driven alternative to Canonical's LXD. 05” manually on an existing system you are responsible for migrating these directories yourself. This flake provides a configuration to build a NixOS image for use with LXD. I won’t go into detail what NixOS/Nix is and what its benefits and culprits are. 09 there is the virtualisation. And lastly, container images, which run on I was trying to refer to whatever source provides the packages and option [schema?] used to evaluate the container’s nixos configuration. Because of this behavior I decided to not specify a dedicated home Incus is a next generation system container and virtual machine manager. 3 by aaronmondal · Pull Request #278969 · NixOS/nixpkgs · GitHub added nvidia-ctk, please test; NixOS: Add support for CDI by ereslibre · Pull Request #284507 · NixOS/nixpkgs · GitHub implements CDI List running containers $ sudo nixos-container list. options: The options declared in all modules. If you are new to Kubernetes you might want to check out K3s first as it is easier to set up (less moving parts). What is happening is the containers can connect to host but not each other. services. This can be ensured by adding a GC root on the host so that the container paths never get collected. My final configuration doesn’t use the nix module for containers. conf does not contain any nameserver. 42jd October 14, 2021, 7:59pm 1. 1 Master and 1 Node. This wiki article extends the documentation in NixOS manual. 100. During a container’s startup the container-side network (using veth-pairs) is configured and network-online. For now I’m able to run them in a privileged container if I manually remount /sys/fs/cgroup as read-write and I’m able to get docker daemon running in an unprivileged container, though runc fails:. However docker does fill a different niche as you say, and I continue to use it after transitioning due to microservices projects, multi tenancy between various clients and closer emulation of staging and production environments (even though nixos ceiling Technically it can work if both the host and the container have the same store paths available. At the time of writing, the latest NixOS LXD container image I found was version 276346783, but you’ll likely want to download the most recent image available here. Assumptions: Master and Node are on the same network (in this example 10. I’ve implemented it so far and everything seems ok from the nix side, but when trying to test it, I’m Hi! I’m trying to implement mountOptions for bindMounts in nixos Containers described in this issue to do a PR later. Home ; Categories ; If you wish to run NixOS container on a NixOS host, checkout NixOS’s declarative container management which may be a more appealing option than LXD. its not in any kind of container itself). You have to copy the root directory so it is owned by your user, I think due to a limitation of podman (if someone has a clue): cp -r result root , or run it as root: I won’t go into detail what NixOS/Nix is and what its benefits and culprits are. The nextcloud containers, for example, are maintained by a different team. Getting secrets from the host into the container by copying or mounting is non-trivial, and giving the container its own key means having to maintain a separate Hello, I am currently trying to use NixOS containers as an additional layer of isolation between applications. docker run), just wrapped in a systemd unit, and are defined using the NixOS containers can be created in two ways: imperatively, using the command nixos-container, and declaratively, by specifying them in your configuration. Members Online • Unfortunately, VS Code installs the server at runtime when the container first comes up, and that server includes a dynamically compiled version of node which is incompatible with Nix. 2. nixcloud-container is inspired by nixos-container which are based on systemd-nspawn. The idea is to enable privateNetwork for all containers, and forward the ports I need for each I honestly don’t know where the infinite recursion here comes from. In order to avoid any conflicts with the parent system module, putting the container module in an This guide accompanies my 2023 Kubecon talk, Nix, Kubernetes, and the Pursuit of Reproducibility. Inspired by NixOS: Containerized and Immutable on YouTube ↩︎. com it says that’s for volatile and As you might have guessed from the comment being there - I also tried that The main issue is that NixOS is heavily reliant on systemd, and the OCI spec isn’t really designed around that kind of workflow. If that makes sense, I’m still unclear on the terminology. NixOS’ containers do not provide full security out of the box (just like docker Best to mount a dataset under /var/lib/containers/storage with property acltype=posixacl. enable, hardware. 10 1234 port [udp/search-agent] succeeded! MyNixOS contains 24507 NixOS options across 5472 NixOS option sets, including accounts, appstream, i18n, lib, news, powerManagement, specialisation, systemd, wayland, xdg. 03 as well, but this Kubernetes is an open-source container orchestration system for automating software deployment, scaling, and management. I thought it would be a nice addition to my NixOS server configuration. Systemd-nspawn is designed to spin up Thanks for the hint, I’ve just noticed that it works on localhost: sudo nixos-container run nextcloud -- curl -L 127. libnvidia indexes the required libraries through the cache created by ldconfig. nix), they would be activated for all hosts (which means that you’d have to separate your server config into a NixOS containers share the Nix store with the host system, but the rest of their directory tree is (by default) isolated, so they do not see the decrypted secrets under the host's /run. 1. shaw August 1, 2023, 5:49pm 3. I’m trying to run docker (or podman) in a nixos container and wondering if someone achieved that. The drivers deployed there by NixOS in that location are known to be compatible with the kernel used at runtime. nix, then delete its definition. This container is configured for use with NixOS and Podman. g. linux vm server nixos provisioning linux-server nixos-configuration nixos-container. See more Setup native systemd-nspawn containers, which are running NixOS and are configured and managed by NixOS using the containers directive. Existing tools for python package management podman-compose. NixOS option set containers. timers. This has huge Thanks! This is what I ended up doing, creating a systemd service/timer to periodically pull the latest image for each container. - ah, must have been when I was testing my containers with the Hi, I want to deploy a container with Podman on NixOS machine. 2 # No response after opening socket curl Yeah this is actually a known issue with NixOS containers. I won’t use it to create or update containers, I will do that via the NixOS configuration. We now have a base NixOS system in a Linux container. LXD has a lot of configuration options, and it is sometimes difficult to figure out the right setup for your use-case. I have it 1) working with other service modules on the same host, running on the host’s network by pointing traefik towards localhost and the service’s port and also 2) working with oci-containers (docker) running on their own defined This is nitpicking, but the similarity doesn't stop at dependency isolation - it is also deterministic provisioning which nixos does better. This can be interesting if you want to deploy multiple services on the same host that each need a custom OS configuration. The declarative approach implies that containers get upgraded along with your host system when you run nixos-rebuild, which is often not what you want. Well since docker tools takes your derivation created at build time my thinking was that this would fix my problem easily. Networking is especially complex. This isolation covers: Full virtualisation of the file system hierarchy Management of NixOS containers and OCI (“Docker”) containers are two entirely separate things. l0b0 March 7, 2024, 7:04am 1. 15. backend, virtualisation. Getting network bridges working for nixos-containers. Curate this topic Add this topic to your repo To associate your repository with the nixos-container topic, visit your repo's landing page and select "manage topics KISS. Have a look at my own project extra-container. grpc. But to each their own; the reason I find NixOS modules more maintainable is because you don’t need to bridge the nix/docker worlds to do so, so if you stick to updating when NixOS does it ends up being less work, assuming you can rely on the maintainer. <name> contains 41 NixOS options across 10 NixOS option sets, including containers. Often I find myself needing a pristine Linux system for testing some program that is expected to work on a user’s machine with an environment that is possibly quite Is there a good way to deploy Docker containers on a NixOS machine declaratively, either with nixops or nixos-rebuild? Or would docker-compose be my best bet? Normally I would use native nix packages, but some packages are a bit cumbersome to setup and docker is supported by upstream or it needs manual setup steps that the docker container has I don’t know how to do this, but I’m also interested in creating docker containers identical to the nix shell you get from mkShell. If you are changing system. containers is configuration for my custom module handling all NixOS containers interactions. It is possible to configure native systemd-nspawn containers, which are running NixOS and are configured and managed by NixOS using the containersdirective. This means that a user with root access to the container can do things that affect the host. My confusion came from the fact that I was able to specify the creation of the containers via virtualisation. I can share some of my actual configuration. oci-containers option that lets you define arbitrary OCI-compliant containers to be mapped into systemd units. The implementation shares the /nix/store between host and guest. This week we’re having a look at how to do the same withsystemd’s systemd-nspawn facility via the machinectlcommand. nix . 1 # Works, serves HTML sudo nixos-container run nextcloud -- curl -L 10. backend Line 30: This will tell NixOS that any containers you define within the block should be treated as systemd services and will be started up on server startup. nix-snapshotter. They are each started with generated systemd units. Manage declarative NixOS containers like imperative containers, without system rebuilds. The ultra optimistic long-term goal is to be a competing alternative to the GNU NixOS offers native support for systemd-nspawn containers, a powerful and simplified alternative to LXC. I was having problems with reboots (I think is related with rootless podman). There are two possible ways to solve this: Fix permissions manually during Incus is a next generation system container and virtual machine manager. The NixOS container is ephemeral and uses bind mounts for persistent data. I don’t recommend virtualisation. When showing Nix or NixOS to newcomers, the first instinct is often to run theNixOS Docker image onDocker or Podman. Now the container should be in a sane state to work on. , acltype=posixacl Best to mount a dataset under /var/lib/containers/storage with property acltype=posixacl. Has anyone been jlesage publishes a few containers which uses VNC for graphical access. Use Podman within nix-shell. I already encountered the issue with networking not being setup until after container started (see here) using the exec solution for etcd. containers, virtualisation. Rootless can't use ZFS directly but the overlay needs POSIX ACL enabled for the underlying ZFS filesystem, ie. vpn_pass = {}; virtualisation. For example with the NixOS module, all you need is services. Goal: I want each container to appear on the local network with its own static IP address, and be accessible to every other container, as well as the host machine. I also tested around until things were working. See Docker page for OCI With a small amount of work, it is possible to use NixOS as a LXC container under ProxmoxVE. I was thinking even that docker-compose could be removed entirely and that a docker command for this container could be maintained entirely within my configuration. nixos-rebuild switch nixos-container start browser # switch "start" with "root-login" for root. allowedDevices. I’m looking for some guidance/best practice around maintaining config for the podman containers - how much of Is there a good way to deploy Docker containers on a NixOS machine declaratively, either with nixops or nixos-rebuild? Or would docker-compose be my best bet? Normally I would use native nix packages, but some packages are a bit cumbersome to setup and docker is supported by upstream or it needs manual setup steps that the docker container has Yes, the NixOS and home-manager modules both set up containerd with nix-snapshotter without Kubernetes, see installation steps. docker run), just wrapped in a systemd unit, and are defined using the I defined a declarative container in my configuration. Docker is available in nixpkgs, which is the preferred way to install it on Let's make managing infrastructure on your own machine less cumbersome. TLATER: show their MyNixOS contains 24507 NixOS options across 5472 NixOS option sets, including accounts, appstream, i18n, lib, news, powerManagement, specialisation, systemd, wayland, xdg. path As an alternative to specifying config, you can specify the path to the evaluated NixOS system configuration, typically a symlink to a system profile I’m trying to use nixos-containers for some services on my nixos-based server, as nixos services have some incredibly useful options (for example, services. nixosModule { enable = true; fqdn = I wouldn’t be so sure about nc -v -u test. Unifi controller). *. "wireguard" = { image = "ghcr. containersConf, virtualisation I’m trying to deploy a k3s cluster on NixOS which will deploy gpu-enabled pods. Let’s say that an updated container image is being shipped. There used to be config. fileSystems option/fileSystems. 10 1234 Connection to 192. NixOS image I have setup traefik on a nixos host by enabling and configuring the traefik service module (i. If you want to pass extra arguments to your container config, you can also use containers. runc: spawn and run OCI containers (nixpkgs: runc); image-spec: container image specification; runtime-spec: container runtime specification; image-tools: tools for working with the image-spec; runtime-tools: tools for working with the runtime-spec; umoci: intends to be a complete manipulation tool for OCI The PR that introduced the ephemeral option to nixos containers may be a useful reference. Troubleshooting Cannot connect to public Wi-Fi, when using Docker. mount-nvidia-docker-1-directories, hardware. systemd. It’s possible someone has got it working, but you can easily spin up a NixOS container using the official nixos-containers cli. One thing I’m having trouble with is networking: I want containers to not be able to access eachother by default, yet can access the Internet. nixosModule { enable = true; fqdn = Because nixos-rebuild is from Nixos and not Nix. #10 - Redox on NixOS, ad-hoc container images, nix-mode. But it is useful to quickly see the status of containers and to view the logs and use the console. oci-containers in the NixOS config, but couldn’t update them from the same source. containers. Type:? for help. containerd = { default_runtime_name = "nvidia"; Nixcademy Running NixOS from any Linux Distro in systemd-nspawn Containers. 1"; NixOS option set virtualisation. There is an nginx reverse proxy on the host OS. 3 Likes. config: The results of all options after merging the values from all modules together. Even if you could, that wouldn’t exactly be optimal, as you’d either have to manually activate the containers with their config (instead of having them in configuration. However, you can also use the native Docker I’m very fresh to NixOS here and I’m looking to migrate a small home Fedora server to NixOS. containers contains 9 NixOS options across 4 NixOS option sets, including virtualisation. Is this something that requires a re-packaging of the extension? ivoencarnacao October 26, 2023, 5:19am 2. Is there a way to fix this, particularly in a declarative fashion? Hi, folx! I’m not new to nix, but I am a bit shaky on where to go with this concept. ezy cplqu cpviz uzzg fjscntvh ncgpxl xfzknr ffw vollh mvj