Download CoreOS Tectonic

Tectonic InstallerThe Tectonic Installer is an app for creating Tectonic clusters.See official installation documentation if you'd like to use a published release.Read on if you'd like to build and run the installer yourself.UsageNotable Flags and Environment Variablesflagenv variableexample-addressINSTALLER_ADDRESS0.0.0.0:8080-platformsINSTALLER_PLATFORMSbare-metal, aws-cookie-signing-secretINSTALLER_COOKIE_SIGNING_SECRETsecret-disable-secure-cookieINSTALLER_DISABLE_SECURE_COOKIEfalse-open-browserINSTALLER_OPEN_BROWSERfalse-log-levelINSTALLER_LOG_LEVELdebug, warn, error-versionINSTALLER_VERSIONNA-helpINSTALLER_HELPNALicenseGet a license and follow the guides to create Tectonic clusters end to end.Build prerequisitesGo 1.8Nodejs >=6.xYarn >=0.20.xThe tectonic-installer repo must be located at $GOPATH/src/github.com/coreos/tectonic-installerBuild / RunAll commands mentioned here must be run from the same working directory as this README file, ./installer/ from the root of this repo.Build the static binary.make buildRun the binary for your platform (linux, darwin)../bin/linux/installer -helpVisit DependenciesFrontendDependencies are managed with yarn and browserify. Unlike godependencies, yarn dependencies are not vendored directly, becauseyarn install will build native extensions that could break builds onother platforms/operating systems. To add a dependency, run:cd $GOPATH/src/github.com/coreos/tectonic-installer/installer/frontendyarn add $MY_PACKAGE # for a runtime dependencyIf you are adding a build dependency, run the following commands instead:cd $GOPATH/src/github.com/coreos/tectonic-installer/installer/frontendyarn add --dev $MY_BUILD_PACKAGE # for a development dependencyBoth sets of commands will update the package.json andyarn.lock files in the repository - those changes shouldthen be committed.GoDependencies are managed with glide, but committed directly to the repository.If you don't have glide, install the latest release from We require version 0.12 at a minimum.To add a new dependency:Edit the glide.yaml file to add your dependency.Ensure you add a version field for the sha or tag you want to pin to.Revendor the dependencies:make vendorIf it worked correctly it should:Clone your new dep to the /vendor dir, and check out the ref you specified.Update glide.lock to include your new package, adds any transitive dependencies, and updates its hash.For the sake of your fellow reviewers, commit vendored code changes as a separate commit from any other changes.Regenerate or Repair Vendored CodeShould you need to regenerate or repair the vendored code en-mass

Tectonic-torcxA self-contained node-helper to automatically operate torcx on Tectonic machines.BackgroundTectonic needs a specific version of Docker to be installed. Since Dockeron Container Linux is managed by torcx, this tool suite keeps the torcxconfiguration in sync with the cluster environment.The tool ensures that the correct verison of Docker is in the torcx store forany potential OS versions. In other words, it populates torcx stores for Currentand Next OS versions.DetailsThis software handles two main cases:A new node is added to the cluster and needs to be configured (bootstrap)An existing node is ready to reboot to a new OS version (pre-reboot hook)1: BootstrapTrigger an OS update (optional, default true)Determine the Kubelet version to installDetermine the correct Docker versionFetch and configure Docker torcx addons and profileSet the correct kubelet versionTrigger node reboot (if needed by updates)2: OS upgrade on a nodeWatch for pre-reboot annotationDetermine new OS versionDetermine docker versionFetch correct docker torcx addonGC unneeded imagesAdd success annotationIn both cases, it can also determine/update kubelet based on cluster status.Buildmake all to build for all supported architectures.ExecuteThis helper is normally run within a container:docker run \ --tmpfs /tmp \ -v /usr/share:/usr/share:ro \ -v /usr/lib/os-release:/usr/lib/os-release:ro \ -v /usr/share/ca-certificates/ca-certificates.crt:/etc/ssl/certs/ca-certificates.crt:ro \ -v /var/lib/torcx:/var/lib/torcx \ -v /run/metadata:/run/metadata:ro \ -v /run/systemd:/run/systemd \ -v /run/torcx:/run/torcx:ro \ -v /var/run/dbus:/var/run/dbus \ -v /etc/coreos:/etc/coreos:ro \ -v /etc/torcx:/etc/torcx \ -v /etc/kubernetes:/etc/kubernetes \ -v /dev/log:/dev/log \ quay.io/coreos/tectonic-torcx:latest-dev \ --verbose=debugSee alsobootkubekube-versiontectonic-installer

Of configuration data across the cluster, making it possible to build highly available and fault-tolerant applications that can automatically scale and recover from failures. Overall, CoreOS represents a significant advancement in cloud-native computing, providing a robust, streamlined and secure foundation for the deployment of modern containerized applications in scalable and distributed environments.Examples of CoreOSTicketmaster: Ticketmaster, a leading global event ticketing company, adopted CoreOS to transform its ticketing infrastructure and provide faster, more scalable services to its customers. The company utilized CoreOS for containerization of its applications, which helped simplify the deployment process, increase the reliability of its services, and design a highly scalable platform that could handle millions of requests per second. This implementation allowed Ticketmaster to reduce its infrastructure costs significantly and build an agile, user-friendly experience for its customers.Handy: Handy, an on-demand home services platform, leveraged CoreOS and its orchestration tool (Tectonic) to improve the scalability, manageability, and security of its cloud-based platform. By employing CoreOS, Handy was able to efficiently manage its microservices architecture, provide consistent deployment processes, and increase the overall development velocity. The use of CoreOS also enabled Handy to have a well-automated environment setup and a robust container infrastructure, which allowed the company to focus on rapidly adding new features and improving its application for users.Honeycomb: Honeycomb, an observability platform for distributed software, adopted CoreOS as a crucial part of its infrastructure to scale their applications and manage them effectively. CoreOS’s container runtime (rkt) played a significant role in delivering efficient resource consumption and easy-to-control processes for Honeycomb’s applications. Additionally, the CoreOS container linux also provided a stable and secure host for running the company’s services. Ultimately, CoreOS helped Honeycomb create a streamlined, reliable, and maintainable infrastructure to support its growing customer base.CoreOS FAQWhat is CoreOS?CoreOS is an open-source lightweight operating system that focuses on providing a minimal operating environment for deploying containerized applications. It is designed for running containerized applications at scale, providing features such as automatic updates and security patches.What are the benefits of using CoreOS?CoreOS offers several benefits, such as a lightweight footprint, ease of deployment, automatic updates, improved security, and the ability to run containerized applications efficiently. All these features contribute to a more stable, secure, and scalable environment for deploying container-based applications.What are the main components of CoreOS?CoreOS consists of three main components: the Container Linux operating system, the rkt container runtime, and the etcd distributed key-value store. These components work together to provide a minimal, secure, and easily-maintainable platform for running containerized applications.How does CoreOS compare to other container-optimized operating systems?CoreOS is often compared to other lightweight operating systems designed for running containers, such as RancherOS and Ubuntu Core. While each has its own unique features, CoreOS stands

By editing the systemd unit or adding a systemd dropin. Find the complete set of bootcfg flags and environment variables at config.sudo systemctl edit bootcfgBy default, the read-only HTTP machine endpoint will be exposed on port 8080.# /etc/systemd/system/bootcfg.service.d/override.conf[Service]Environment="BOOTCFG_ADDRESS=0.0.0.0:8080"Environment="BOOTCFG_LOG_LEVEL=debug"A common customization is enabling the gRPC API to allow clients with a TLS client certificate to change machine configs.# /etc/systemd/system/bootcfg.service.d/override.conf[Service]Environment="BOOTCFG_ADDRESS=0.0.0.0:8080"Environment="BOOTCFG_RPC_ADDRESS=0.0.0.0:8081"The Tectonic Installer uses this API. Tectonic users with a CoreOS provisioner can start with an example that enables it.$ sudo cp contrib/systemd/bootcfg-for-tectonic.service /etc/systemd/system/bootcfg.serviceCustomize bootcfg to suit your preferences.FirewallAllow your port choices on the provisioner's firewall so the clients can access the service. Here are the commands for those using firewalld:$ sudo firewall-cmd --zone=MYZONE --add-port=8080/tcp --permanent$ sudo firewall-cmd --zone=MYZONE --add-port=8081/tcp --permanentGenerate TLS CredentialsSkip this unless you need to enable the gRPC APIThe bootcfg gRPC API allows client apps (bootcmd CLI, Tectonic Installer, etc.) to update how machines are provisioned. TLS credentials are needed for client authentication and to establish a secure communication channel. Client machines (those PXE booting) read from the HTTP endpoints and do not require this setup.If your organization manages public key infrastructure and a certificate authority, create a server certificate and key for the bootcfg service and a client certificate and key for each client tool.Otherwise, generate a self-signed ca.crt, a server certificate (server.crt, server.key), and client credentials (client.crt, client.key) with the examples/etc/bootcfg/cert-gen script. Export the DNS name or IP (discouraged) of the provisioner host.$ cd examples/etc/bootcfg# DNS or IP Subject Alt Names where bootcfg can be reached$ export SAN=DNS.1:bootcfg.example.com,IP.1:192.168.1.42$

InstallationThis guide walks through deploying the bootcfg service on a Linux host (via RPM, rkt, docker, or binary) or on a Kubernetes cluster.Provisonerbootcfg is a service for network booting and provisioning machines to create CoreOS clusters. bootcfg should be installed on a provisioner machine (CoreOS or any Linux distribution) or cluster (Kubernetes) which can serve configs to client machines in a lab or datacenter.Choose one of the supported installation options:CoreOS (rkt)RPM-basedGeneral Linux (binary)With rktWith dockerKubernetes ServiceDownloadDownload the latest coreos-baremetal release to the provisioner host.$ wget wget the release has been signed by the CoreOS App Signing Key."">$ gpg --keyserver pgp.mit.edu --recv-key 18AD5014C99EF7E3BA5F6CE950BDD3E0FC8A365E$ gpg --verify coreos-baremetal-v0.4.2-linux-amd64.tar.gz.asc coreos-baremetal-v0.4.2-linux-amd64.tar.gz# gpg: Good signature from "CoreOS Application Signing Key "Untar the release.$ tar xzvf coreos-baremetal-v0.4.2-linux-amd64.tar.gz$ cd coreos-baremetal-v0.4.2-linux-amd64InstallRPM-based DistroOn an RPM-based provisioner, install the bootcfg RPM from the Copr repository using dnf or yum.dnf copr enable dghubble/bootcfgdnf install bootcfg# requires yum-plugin-copryum copr enable dghubble/bootcfgyum install bootcfgAlternately, download the repo file and place it in /etc/yum.repos.d/.CoreOSOn a CoreOS provisioner, rkt run bootcfg image with the provided systemd unit.$ sudo cp contrib/systemd/bootcfg-on-coreos.service /etc/systemd/system/bootcfg.serviceGeneral LinuxPre-built binaries are available for general Linux distributions. Copy the bootcfg static binary to an appropriate location on the host.$ sudo cp bootcfg /usr/local/binSet Up User/GroupThe bootcfg service should be run by a non-root user with access to the bootcfg data directory (/var/lib/bootcfg). Create a bootcfg user and group.$ sudo useradd -U bootcfg$ sudo mkdir -p /var/lib/bootcfg/assets$ sudo chown -R bootcfg:bootcfg /var/lib/bootcfgCreate systemd ServiceCopy the provided bootcfg systemd unit file.$ sudo cp contrib/systemd/bootcfg-local.service /etc/systemd/system/CustomizationCustomize bootcfg