{"id":27500,"date":"2017-04-09T13:47:51","date_gmt":"2017-04-09T11:47:51","guid":{"rendered":"https:\/\/mamchenkov.net\/wordpress\/?p=27500"},"modified":"2017-04-09T13:47:51","modified_gmt":"2017-04-09T11:47:51","slug":"containers-are-not-a-real-thing","status":"publish","type":"post","link":"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/containers-are-not-a-real-thing\/","title":{"rendered":"Containers are not a real thing!"},"content":{"rendered":"<!-- google_ad_section_start -->\n<p><a href=\"https:\/\/blog.jessfraz.com\/\">Jessie Frazelle<\/a> reiterates her point on containers in the\u00a0blog post &#8220;S<a href=\"https:\/\/blog.jessfraz.com\/post\/containers-zones-jails-vms\/\">etting the Record Straight: containers vs. Zones vs. Jails vs. VMs<\/a>&#8220;:<\/p>\n<blockquote><p><strong>The Design of Solaris Zones, BSD Jails, VMs and containers are very different.<\/strong><br \/>\nSolaris Zones, BSD Jails, and VMs are first class concepts. This is clear from the <a href=\"https:\/\/us-east.manta.joyent.com\/jmc\/public\/opensolaris\/ARChive\/PSARC\/2002\/174\/zones-design.spec.opensolaris.pdf\">Solaris Zone Design Spec<\/a> and the <a href=\"https:\/\/www.freebsd.org\/doc\/handbook\/jails.html\">BSD Jails Handbook<\/a>. I hope it can go without saying that VMs are very much a first class object without me having to link you somewhere :P.<\/p>\n<p>Containers on the other hand are not real things.<\/p>\n<p>A \u201ccontainer\u201d is just a term people use to describe a combination of Linux namespaces and cgroups. Linux namespaces and cgroups ARE first class objects. NOT containers.<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<!-- google_ad_section_end -->\n","protected":false},"excerpt":{"rendered":"<!-- google_ad_section_start -->\n<p>Jessie Frazelle reiterates her point on containers in the\u00a0blog post &#8220;Setting the Record Straight: containers vs. Zones vs. Jails vs. VMs&#8220;: The Design of Solaris Zones, BSD Jails, VMs and containers are very different. Solaris Zones, BSD Jails, and VMs are first class concepts. This is clear from the Solaris Zone Design Spec and the &hellip; <a href=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/containers-are-not-a-real-thing\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Containers are not a real thing!<\/span><\/a><\/p>\n<!-- google_ad_section_end -->\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Containers are not a real thing! #Linux #containers #virtualization #SysAdmin","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,6,133,62],"tags":[3421,3104],"keyring_services":[],"class_list":["post-27500","post","type-post","status-publish","format-standard","hentry","category-general","category-linux","category-sysadmin","category-technology","tag-containers","tag-virtualization"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Jessie Frazelle reiterates her point on containers in the blog post &quot;Setting the Record Straight: containers vs. Zones vs. Jails vs. VMs&quot;: The Design of Solaris Zones, BSD Jails, VMs and containers are very different. 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This is clear from the Solaris Zone Design Spec and the","twitter:creator":"@mamchenkov","twitter:image":"https:\/\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2026\/03\/leonid-sailing-beer.jpg"},"aioseo_meta_data":{"post_id":"27500","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"BlogPosting","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2023-07-19 22:06:36","updated":"2026-01-15 12:51:45","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/mamchenkov.net\/wordpress\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/mamchenkov.net\/wordpress\/category\/technology\/\" title=\"Technology\">Technology<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/mamchenkov.net\/wordpress\/category\/technology\/linux\/\" title=\"Linux\">Linux<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tContainers are not a real thing!\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/mamchenkov.net\/wordpress"},{"label":"Technology","link":"https:\/\/mamchenkov.net\/wordpress\/category\/technology\/"},{"label":"Linux","link":"https:\/\/mamchenkov.net\/wordpress\/category\/technology\/linux\/"},{"label":"Containers are not a real thing!","link":"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/containers-are-not-a-real-thing\/"}],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":26286,"url":"https:\/\/mamchenkov.net\/wordpress\/2016\/07\/25\/serverlessconf-2016-new-york-city-a-personal-report\/","url_meta":{"origin":27500,"position":0},"title":"Serverlessconf 2016 \u2013 New York City: a personal report","author":"Leonid Mamchenkov","date":"July 25, 2016","format":false,"excerpt":"Serverlessconf 2016 \u2013 New York City: a personal report - is a fascinating read. \u00a0Let me get you hooked: This event left me with the impression (or the confirmation) that there are two paces and speeds at which people are moving. There is the so called \u201clegacy\u201d pace. This is\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":27262,"url":"https:\/\/mamchenkov.net\/wordpress\/2017\/01\/20\/10-things-to-avoid-in-docker-containers\/","url_meta":{"origin":27500,"position":1},"title":"10 things to avoid in Docker containers","author":"Leonid Mamchenkov","date":"January 20, 2017","format":false,"excerpt":"10 things to avoid in Docker containers provides a handy reminder of what NOT to do when building Docker containers. \u00a0Read the full article for details and explanations. \u00a0For a brief summary, here are the 10 things: Don\u2019t store data in containers Don\u2019t ship your application in two pieces Don\u2019t\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":28416,"url":"https:\/\/mamchenkov.net\/wordpress\/2018\/02\/27\/7-ways-to-do-containers-on-aws\/","url_meta":{"origin":27500,"position":2},"title":"7 ways to do containers on AWS","author":"Leonid Mamchenkov","date":"February 27, 2018","format":false,"excerpt":"\"7 ways to do containers on AWS\" covers a variety of different ways to run containers on the Amazon AWS cloud infrastructure.\u00a0 These include most of the usual suspects, like Amazon Elastic Container Service (ECS), Amazon Elastic Container Service for Kubernetes (EKS), and hand-rolled vanilla containers on EC2, as well\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2018\/02\/amazon-containers-500x250.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":46349,"url":"https:\/\/mamchenkov.net\/wordpress\/2020\/02\/05\/ctop-top-like-interface-for-monitoring-docker-containers\/","url_meta":{"origin":27500,"position":3},"title":"ctop &#8211; top-like interface for monitoring Docker containers","author":"Leonid Mamchenkov","date":"February 5, 2020","format":false,"excerpt":"ctop is a very simple, but very useful tool for when you run a number of Docker containers and want to have a top-like overview of their CPU, memory, and network usage. This article provides more details on how to install, run, and use ctop effectively, including container filtering, single\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2020\/02\/Docker-Container-Monitoring.gif?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2020\/02\/Docker-Container-Monitoring.gif?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2020\/02\/Docker-Container-Monitoring.gif?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2020\/02\/Docker-Container-Monitoring.gif?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2020\/02\/Docker-Container-Monitoring.gif?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":36993,"url":"https:\/\/mamchenkov.net\/wordpress\/2019\/03\/04\/on-the-future-of-docker-containers-and-serverless\/","url_meta":{"origin":27500,"position":4},"title":"On the future of Docker, containers, and serverless","author":"Leonid Mamchenkov","date":"March 4, 2019","format":false,"excerpt":"I came across this blog post - \"Goodbye Docker and Thanks for all the Fish\" - which talks about the not-so-eminent, but very predictable death of Docker as both the technology, and the company. The gist of it is that container orchestration kicked in, and made Docker very replaceable with\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2019\/03\/Cloud-Has-Come-Of-Age.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2019\/03\/Cloud-Has-Come-Of-Age.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2019\/03\/Cloud-Has-Come-Of-Age.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2019\/03\/Cloud-Has-Come-Of-Age.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2019\/03\/Cloud-Has-Come-Of-Age.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":26085,"url":"https:\/\/mamchenkov.net\/wordpress\/2016\/05\/03\/algorithm-economy-and-containers\/","url_meta":{"origin":27500,"position":5},"title":"Algorithm Economy and Containers","author":"Leonid Mamchenkov","date":"May 3, 2016","format":false,"excerpt":"Containers (Docker, et al) have been getting all the hype recently. \u00a0I've played around with these a bit, but I'm not yet convinced this is the next greatest thing for projects that I am involved with currently. \u00a0However, it helps to look at these from different perspectives. \u00a0Here's a blog\u2026","rel":"","context":"In &quot;All&quot;","block_context":{"text":"All","link":"https:\/\/mamchenkov.net\/wordpress\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts\/27500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/comments?post=27500"}],"version-history":[{"count":0,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/posts\/27500\/revisions"}],"wp:attachment":[{"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/media?parent=27500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/categories?post=27500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/tags?post=27500"},{"taxonomy":"keyring_services","embeddable":true,"href":"https:\/\/mamchenkov.net\/wordpress\/wp-json\/wp\/v2\/keyring_services?post=27500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}