{"id":456,"date":"2015-05-04T11:23:08","date_gmt":"2015-05-04T10:23:08","guid":{"rendered":"https:\/\/www.inovex.de\/\/?p=456"},"modified":"2026-03-17T07:59:05","modified_gmt":"2026-03-17T06:59:05","slug":"docker-a-comparison-of-minimalistic-operating-systems","status":"publish","type":"post","link":"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/","title":{"rendered":"A Comparison of Minimalistic Docker Operating Systems [Update]"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\">With the Hype around containers and especially Docker many new Linux distributions were created to run containers. Compared to\u00a0traditional operating systems, there are some benefits when using such a Linux distribution. In this article we compare 5 popular and promising distributions.<\/span><!--more--><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\"><\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Overview-Docker-Operating-Systems\" >Overview: Docker Operating Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Container-Linux-by-CoreOS\" >Container Linux by CoreOS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Project-Atomic\" >Project Atomic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Ubuntu-Core\" >Ubuntu Core<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#RancherOS\" >RancherOS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#VMware-%E2%80%93-Photon\" >VMware \u2013 Photon<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Some-other-OSs-to-look-at\" >Some other OSs to look at<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Were-hiring\" >We&#8217;re hiring!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Get-in-touch\" >Get in touch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/#Read-on\" >Read on<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Overview-Docker-Operating-Systems\"><\/span>Overview: Docker Operating Systems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are some benefits when using a Linux distribution which is designed for running containers:<\/p>\n<ul>\n<li>Pretty small \u2192 you only want a minimal OS<\/li>\n<li>Minimize the overhead of tools<\/li>\n<li>Atomic updates<\/li>\n<li>Most of them clustered by default<\/li>\n<li>Run Docker daemon automatically<\/li>\n<li>Read-only root file system<\/li>\n<li>Rollback of atomic updates (dual-partition update scheme)<\/li>\n<li>Improved stability and security<\/li>\n<\/ul>\n<p>For this\u00a0comparison I chose 5 different Linux distributions:<\/p>\n<ol>\n<li><a href=\"https:\/\/coreos.com\" target=\"_blank\" rel=\"noopener\">Container Linux by CoreOS<\/a><\/li>\n<li><a href=\"https:\/\/www.projectatomic.io\" target=\"_blank\" rel=\"noopener\">Project Atomic<\/a><\/li>\n<li><a href=\"https:\/\/developer.ubuntu.com\/en\/snappy\" target=\"_blank\" rel=\"noopener\">Ubuntu Snappy<\/a><\/li>\n<li><a href=\"https:\/\/rancher.com\/docs\/os\/v1.x\/en\/\" target=\"_blank\" rel=\"noopener\">RancherOS<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/vmware\/photon\" target=\"_blank\" rel=\"noopener\">Photon<\/a><\/li>\n<\/ol>\n<p>Each of these distributions uses cloud-init which provides a multi-distribution package that handles early initialization of cloud instances. It is important that you have a close\u00a0look at each distribution&#8217;s cloud-init as\u00a0they support different options.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Container-Linux-by-CoreOS\"><\/span>Container Linux by CoreOS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><em>CoreOS is a new Linux distribution that has been re-architected to provide features needed to run modern infrastructure stacks. The strategies and architectures that influence CoreOS allow companies like Google, Facebook and Twitter to run their services at scale with high resilience.<\/em><\/p>\n<p>key\u00a0feature is\u00a0that Container Linux comes with two container runtimes (e.g. Docker and Rocket) which are automatically configured on each Container Linux machine. Also Container Linux provides automatic OS updates which means you get all Updates per default\u00a0and you don&#8217;t have to worry about old versions.<\/p>\n<p>Container Linux is using the own built <a href=\"https:\/\/coreos.com\/ignition\/docs\/latest\/\">ignition<\/a> instead of cloud init. Ignition is a provisioning tool that runs on the first boot and let you configure your nodes in an immutable way. The preferred way to run your applications on Container Linux is to run them in a container like CoreOS <a href=\"https:\/\/coreos.com\/blog\/toward-etcd-v3-in-container-linux.html\">runs etcd on Container Linux<\/a>.<\/p>\n<p>A major benefit of\u00a0running Container Linux is <em>etcd<\/em>. etcd is a distributed key value store which is used by many projects like <u><a href=\"http:\/\/kubernetes.io\/\">Kubernetes<\/a><\/u>, <u><a href=\"http:\/\/www.cloudfoundry.org\/index.html\">Cloud Foundry<\/a><\/u> and many more. You can use etcd for simple service discovery and much\u00a0more.\u00a0Also major cloud providers offer\u00a0Container Linux support. In the meantime CoreOS, the company behind Container Linux, was acquired by <a href=\"https:\/\/www.redhat.com\/en\/about\/press-releases\/red-hat-acquire-coreos-expanding-its-kubernetes-and-containers-leadership\">Redhat<\/a>. The <a href=\"https:\/\/coreos.com\/blog\/fedora-coreos-red-hat-coreos-and-future-container-linux\">future of Container Linux and Fedora\/Redhat CoreOS<\/a> is not really clear, let\u2019s see what the future will bring.<\/p>\n<p><a href=\"https:\/\/www.flatcar-linux.org\/\">Flatcar Linux<\/a> is a friendly fork of Container Linux by <a href=\"https:\/\/kinvolk.io\/\">Kinvolk<\/a>. Flatcar Linux is a drop-in replacement for Container Linux. The main idea behind Flatcar is to support Container Linux (or the ideas behind it) in an community driven fashion.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Project-Atomic\"><\/span>Project Atomic<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><em>Project Atomic integrates the tools and patterns of container-based application and service deployment with trusted operating system platforms to deliver an end-to-end hosting architecture that&#8217;s modern, reliable, and secure.<\/em><\/p>\n<p>For the Red Hat family members Fedora, RHEL and CentOS there are independent Atomic releases. If you are familiar with one of these you can use them as an Atomic host as well. The Atomic Host Red Hat replaces yum with the rpm-ostree which is used to manage the OS packages with atomic updates which means you can rollback to a previous tree. Also you can create your own custom images for Atomic with the rpm-ostree-toolbox.<\/p>\n<p>One major benefit of Project Atomic is the mature environment of Red Hat. You are able to use tools like SELinux, Kickstart, Anaconda etc. on your Atomic Host.<\/p>\n<p>When I tried\u00a0their\u00a0<u><a href=\"http:\/\/www.projectatomic.io\/docs\/quickstart\">quick start<\/a><\/u>\u00a0guide\u00a0at first\u00a0it didn&#8217;t work because it\u00a0pointed to an old version of Atomic. After I downloaded <u>Fedora Atomic<\/u> however\u00a0the I got it running. Since the acquisition of CoreOS by Redhat it seems like Project Atomic will be replaced by <a href=\"https:\/\/www.projectatomic.io\/blog\/2018\/06\/welcome-to-fedora-coreos\/\">Fedora\/Redhat CoreOS<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ubuntu-Core\"><\/span>Ubuntu Core<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><em>Ubuntu Core is a tiny, transactional version of Ubuntu for IoT devices and large container deployments. It runs a new breed of super-secure, remotely upgradeable Linux app packages known as snaps <\/em><em>\u2010<\/em><em> and it\u2019s trusted by leading IoT players, from chipset vendors to device makers and system integrators.<\/em><\/p>\n<p>Ubuntu Core supports Canonical&#8217;s AppArmor kernel security system for delivering human-friendly security. This means\u00a0Ubuntu Core lets you isolate applications from one another completely. Ubuntu Core is easily extensible with so called <a href=\"https:\/\/snapcraft.io\/store\">snaps<\/a> (e.g. Docker) \u2013 after adding a <a href=\"https:\/\/snapcraft.io\/\">snap<\/a> to your Ubuntu Core you can run apps on it.<\/p>\n<p><a href=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-460 size-full\" src=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy.png\" alt=\"Sauce: https:\/\/assets.ubuntu.com\/sites\/ubuntu\/latest\/u\/img\/cloud\/tools\/snappy\/how-it-works.png\" width=\"748\" height=\"338\" srcset=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy.png 748w, https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy-300x136.png 300w, https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy-400x181.png 400w, https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/ubuntu-snappy-360x163.png 360w\" sizes=\"auto, (max-width: 748px) 100vw, 748px\" \/><\/a><\/p>\n<p>All OS and application files in Ubuntu Core are kept separate and as read-only images. This means updates on Ubuntu Core are easy and predictable. With delta management Ubuntu Core can also keep the size of downloads minimal. Of course Ubuntu Core provides roll backs for system and application updates.<\/p>\n<p>Per default Ubuntu Core doesn&#8217;t come shipped with Docker but you can easily install Docker as a snap to run Docker containers. The installation is pretty simple:<\/p>\n<pre class=\"lang:sh decode:true\">sudo snappy install docker<\/pre>\n<p>The first time you try Ubuntu Core you will notice that you need an <a href=\"https:\/\/login.ubuntu.com\/\">Ubuntu account<\/a>. The Ubuntu account will be used for the <a href=\"https:\/\/www.reddit.com\/r\/Ubuntu\/comments\/5c33yq\/why_does_ubuntu_core_require_you_to_sign_up_with\/\">initial provisioning of the ssh keys<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"RancherOS\"><\/span>RancherOS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><em>When we started the RancherOS project, we set out to build a minimalist Linux distribution that was perfect for running Docker containers. We wanted to run Docker directly on top of the Linux Kernel, and have all user-space Linux services be distributed as Docker containers. By doing this, there would be no need to use a separate software package distribution mechanism for RancherOS itself.<\/em><\/p>\n<p>Basically RancherOS is an OS made of Containers. It\u00a0runs the Docker daemon as PID 1 which means that the Docker daemon is the first process that\u00a0gets started by the kernel. Now another interesting fact is that RancherOS runs 2 Docker daemons, one for the system (<em>System Docker<\/em>) and one for the user (<em>User Docker<\/em>) which of course runs <em>within<\/em> the System Docker. The System Docker is responsible for initiating all system services like udev, DHCP and the console. So instead of systemd, sysvinit or upstart RancherOS uses Docker as an init system and manages all system services as Docker containers.<\/p>\n<p><a href=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/rancheros.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-459 size-full\" src=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/rancheros.png\" alt=\"Sauce: http:\/\/rancher.com\/wp-content\/uploads\/2015\/02\/rancherOS_lighter.png\" width=\"826\" height=\"552\" \/><\/a><\/p>\n<p>One of the reasons why RancherOS comes with two Docker daemons is that when you accidentally stop\/delete all containers from\u00a0the user Docker your system still works.<\/p>\n<p>As you run\u00a0everything in Docker containers you always get latest Docker version with RancherOS. You can easily extend RancherOS by running additional system containers, e.g. you can run your own console container to access\u00a0your favorite\u00a0console. Resulting from the small footprint you have to monitor less for security vulnerabilities which means less patches and increased stability.<\/p>\n<p>Since all system services are delivered as Docker containers you don&#8217;t need any package management tools\u00a0such as\u00a0apt-get or yum. As\u00a0the kernel and initrd are not Docker containers RancherOS uses Docker packaging and distribution to deliver kernel and initrd updates as well.<\/p>\n<p>RancherOS can\u00a0also be considered a solution for embedded systems and IoT devices.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"VMware-%E2%80%93-Photon\"><\/span>VMware \u2013 Photon<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><em>Photon is a technology preview of a minimal Linux container host. It is designed to have a small footprint and boot extremely quickly on VMware platforms. Photon is intended to invite collaboration around running containerized applications in a virtualized environment.<\/em><\/p>\n<p>VMware jumped onto the train of creating a new OS for containerized apps. VMware Photon is a minimal Linux container host which is optimized for vSphere. Photon supports all common containers like Docker, rocket and the Pivotal Garden container specifications, which are based on Vmware Warden. Also VMwares photon comes with an efficient lifecycle management which contains a yum-compatible package manager.<\/p>\n<p><a href=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/photon.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-458 size-full\" src=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/photon.png\" alt=\"Sauce: http:\/\/www.vernak.com\/wp-content\/uploads\/2015\/04\/Identity-Access-Management.png\" width=\"946\" height=\"479\" \/><\/a><\/p>\n<p>A major benefit of using Photon is Lightwave by\u00a0VMware. Lightwave offers a centralized identity management for authentication and authorization. It supports many open standards like LDAP, Kerberos, SAML and OAuth 2.0. Basically, you can say Lightwave brings a new layer of container security into your environment. In the figure above\u00a0you can see how Lightwave supports a centralized identity and access management.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Some-other-OSs-to-look-at\"><\/span><strong style=\"font-size: 16px;\">Some other OSs to look at<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The ordering in the following enumeration is based on an alphabetical order and no preferences:<\/p>\n<ul>\n<li>SmartOS<\/li>\n<li><a href=\"https:\/\/resinos.io\/\">ResinOS<\/a><\/li>\n<li><a href=\"https:\/\/en.opensuse.org\/Kubic:MicroOS\">MicroOS<\/a><\/li>\n<li>ClearLinux<\/li>\n<li>Nano Server<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As so often in Computer Science there is no silver bullet. Your best choice\u00a0highly depends on your project \u2013 if you have a greenfield project you may go with new technologies and if you got a brownfield project you may need to use the proven technologies. This however\u00a0does not mean that both cannot co-exist. On the other hand, you have to know what you need and what your team is familiar with. Also don&#8217;t forget that some of these technologies are still in their infancy and have some issues you might not\u00a0want to have in production. Another point\u00a0you have to consider is that these new projects are in constant development, so update\u00a0might\u00a0break some processes.<\/p>\n<p>Time will tell\u00a0how these new operating systems will affect the Server\/Cloud\/Datacenter world. I think for now proven OSes and these new OSes will exist side by side depending on the workload and your environment.<\/p>\n<p>In conclusion you\u00a0can say there are many great choices for running your Docker infrastructure. And don&#8217;t forget: you can also run your containers on the most <em>old-school<\/em> OS \u2013 no need\u00a0to switch everything right now.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Were-hiring\"><\/span>We&#8217;re hiring!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Looking for a change? We&#8217;re hiring DevOps Engineers experienced with NodeJS, Git, Jenkins, Puppet and of course Docker. <strong>Apply now!<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Get-in-touch\"><\/span>Get in touch<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Interested in <a href=\"https:\/\/www.inovex.de\/de\/leistungen\/replatforming\/microservices\/\" target=\"_blank\" rel=\"noopener\">containerization, microservices and replatforming<\/a>? Have a look at our full portfolio on <a href=\"https:\/\/www.inovex.de\/de\/leistungen\/\" target=\"_blank\" rel=\"noopener\">our website<\/a>, drop us an <a href=\"mailto:list-blog@inovex.de\">email<\/a> or call <a href=\"tel:+497216190210\">+49 721 619 021-0<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Read-on\"><\/span>Read on<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Looking for another perspective? Codeship recently published a similar comparison, additionally taking into account Mesosphere&#8217;s DCOS. Head over to <a href=\"https:\/\/blog.codeship.com\/container-os-comparison\/\" target=\"_blank\" rel=\"noopener\">their blog<\/a> to find out what they think about it.<\/p>\n<p>You might also be interested in our <a href=\"https:\/\/www.inovex.de\/docker-plugins\/\" target=\"_blank\" rel=\"noopener\">step-by-step tutorial about Docker plugins<\/a>. If you&#8217;re new to Docker we recommend having a look at our introduction to <a href=\"https:\/\/www.inovex.de\/docker-an-introduction-to-easy-containerization\/\" target=\"_blank\" rel=\"noopener\">easy containerization<\/a> an read our three compelling reasons to use Docker with <a href=\"https:\/\/www.inovex.de\/three-reasons-why-you-should-use-google-container-engine\/\" target=\"_blank\" rel=\"noopener\">Google Container Engine<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the Hype around containers and especially Docker many new Linux distributions were created to run containers. Compared to\u00a0traditional operating systems, there are some benefits when using such a Linux distribution. In this article we compare 5 popular and promising distributions.<\/p>\n","protected":false},"author":22,"featured_media":465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"ep_exclude_from_search":false,"footnotes":""},"tags":[71,79],"service":[],"coauthors":[{"id":22,"display_name":"Johannes M. Scheuermann","user_nicename":"jscheuermann"}],"class_list":["post-456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-cloud","tag-replatforming"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Comparison of Minimalistic Docker Operating Systems<\/title>\n<meta name=\"description\" content=\"In this article we compare the benefits of 5+ popular and promising minimalistic distributions best suited as a Docker Operating Systems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Comparison of Minimalistic Docker Operating Systems\" \/>\n<meta property=\"og:description\" content=\"In this article we compare the benefits of 5+ popular and promising minimalistic distributions best suited as a Docker Operating Systems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.inovex.de\/de\/blog\/docker-a-comparison-of-minimalistic-operating-systems\/\" \/>\n<meta property=\"og:site_name\" content=\"inovex GmbH\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/inovexde\" \/>\n<meta property=\"article:published_time\" content=\"2015-05-04T10:23:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-17T06:59:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.inovex.de\/wp-content\/uploads\/2015\/05\/docker-os-vergleich.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2300\" \/>\n\t<meta property=\"og:image:height\" content=\"678\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Johannes M. 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