What is Docker? A Beginner’s Guide on Docker

141 Comments / Uncategorized / By / December 20, 2021
What is Docker? A Beginner’s Guide on Docker

Docker is an open-source software development program that helps developers build portable software containers for faster application development and deployment.

Why Docker?

Infrastructure development is an extensive process that requires writing thousands of lines of code. The sheer size of the operation makes it extremely hard to find and rectify errors. Compatibility also creates issues as the developer creates and optimizes the code onto his/her machine, and initiating the same code on a different system can fetch completely different results. This error occurs due to the lack of libraries and dependencies the code requires to operate as intended, which were present on the developer machine but not on the other system. This other machine can be someone from the operations trying to deploy the code for configuration or the client trying to use the software.

To counter the above-mentioned issues, Solomon Hykes created Docker in 2013. Docker simplifies the process of developing, deploying, and running applications. It does so by using containers. Containers allow a developer to create one complete package of an application and libraries and dependencies it needs to execute. This feature enables the application to run on any other Linux machine without any problem. Docker uses the host OS kernel instead of requiring a special one to run the application. This feature results in better performance, and the application stays lightweight. Docker is beneficial for both developers and operations. It helps developers code with ease without worrying about the machine on which it will ultimately run. As for the operations team, Docker gives them a lot of flexibility due to its small footprint, higher compatibility, and proves to be a lower-cost alternative.

How does Docker work?

Docker starts with the Dockerfile. It is a text file that includes syntax instructions to build a Docker image. Dockerfile is used to create an image. Docker image is a portable file that contains specifications required for the container to run. Docker build helps to create an image from the Dockerfile. Docker run helps to launch the container. 

The entire process revolves around the Docker engine, the client-server technology that is used to create and run the containers. 

Docker Hub

Docker Hub is like a social media for Dockers. Hub is a platform for sharing and managing containers and is the world’s largest of its kind repository. It is a community of developers, open-source projects, and independent developers building and distributing codes in containers.

Docker Engine

There are two different versions of the Docker engine. One is Community Edition, and the other one is Enterprise edition. While the Community edition is free Enterprise version costs $1500 per node per year and contains an advanced management machine compared to its free counterpart. 

Docker revolutionized infrastructure building, making it easier for developers to code, operations to configure. Docker also helped in providing an error-free experience for the end-user. 

Docker can be the solution your organization needs for fast-paced and efficient operations. Consult the TeamITServe team today for help.

If you are looking for experienced Automation professionals for your organization, contact us at vic@teamitserve.com. 

141 thoughts on “What is Docker? A Beginner’s Guide on Docker”

  55. Nilda

    Great post. I was checking constantly this blog and I
    am impressed! Very helpful info specially the last part 🙂 I care for such info
    much. I was seeking this particular information for a very long time.
    Thank you and good luck.

  59. Hershel

    hello there and thank you for your info – I’ve definitely picked up anything new from right here.
    I did however expertise some technical issues using this web site, as I experienced to reload
    the web site a lot of times previous to I
    could get it to load correctly. I had been wondering if your web hosting
    is OK? Not that I am complaining, but slow loading instances times will often affect your placement in google and could damage your quality score if ads and
    marketing with Adwords. Well I am adding this RSS
    to my email and can look out for a lot more of your respective intriguing content.
    Ensure that you update this again very soon.

  60. Melvina

    Howdy! I know this is kind of off topic but I was wondering which blog platform are
    you using for this website? I’m getting tired of WordPress because I’ve had issues with hackers
    and I’m looking at options for another platform. I would be great if you
    could point me in the direction of a good platform.

  61. Nilda

    obviously like your web-site however you need to test the spelling on quite a few of your posts.
    Many of them are rife with spelling issues and
    I in finding it very troublesome to tell the truth on the other hand I’ll definitely come
    again again.

  63. Vivien

    Hello! This post couldn’t be written any better! Reading
    through this post reminds me of my good old room mate!
    He always kept talking about this. I will forward this page to him.
    Fairly certain he will have a good read.
    Many thanks for sharing!

  64. Roderick

    You’re so awesome! I don’t believe I’ve read anything like that before.
    So nice to find another person with some original thoughts on this subject.
    Seriously.. many thanks for starting this up. This site is one thing that
    is needed on the web, someone with some originality!

  68. tcsgroupv

    micafungin, sold under the brand name mycamine, is a polyene antifungal medication used to treat and prevent invasive fungal infections including candidemia, abscesses and esophageal candidiasis. it inhibits the production of beta-1,3-glucan, an essential component of fungal cell walls. micafungin is administered intravenously. it received final approval from the u.s. food and drug administration (fda) on march 16, 2005, and gained approval in the european union on april 25, 2008.

    indications
    micafungin is indicated for the treatment of candidemia, acute disseminated candidiasis, candida peritonitis, abscesses and esophageal candidiasis. since january 23, 2008, micafungin has been approved for the prophylaxis of candida infections in patients undergoing hematopoietic stem cell transplantation (hsct).

    micafungin works by way of concentration-dependent inhibition of 1,3-beta-d-glucan synthase resulting in reduced formation of 1,3-beta-d-glucan, which is an essential polysaccharide comprising one-third of the majority of candida spp. cell walls. this decreased glucan production leads to osmotic instability and thus cellular lysis.

  74. Aundrea

    If some one wishes to be updated with newest technologies afterward he must
    be go to see this site and be up to date every day.

  75. Lyle

    Have you ever thought about including a little bit more than just your articles?

    I mean, what you say is fundamental and all. Nevertheless think of
    if you added some great graphics or video clips to give your posts more,
    “pop”! Your content is excellent but with images and videos, this website could
    undeniably be one of the best in its niche.
    Fantastic blog!

  77. Layla

    Undeniably imagine that that you stated. Your favourite reason appeared
    to be at the internet the simplest factor to take into accout of.
    I say to you, I certainly get annoyed while other
    folks think about concerns that they just do not recognize
    about. You controlled to hit the nail upon the top as well as defined out the entire thing with no need side-effects , people could take a signal.
    Will probably be back to get more. Thanks

  78. Krystyna

    I all the time used to read post in news papers but now as I am a user
    of internet therefore from now I am using net for articles, thanks to web.

  81. Glenna

    Good day! This is my first visit to your blog! We
    are a team of volunteers and starting a new initiative in a community in the same niche.
    Your blog provided us useful information to work on. You have
    done a wonderful job!

  82. Aracely

    Have you ever considered publishing an ebook or guest authoring on other blogs?

    I have a blog based on the same ideas you discuss and would love to
    have you share some stories/information. I know my visitors would enjoy your work.
    If you are even remotely interested, feel free to send me an email.

  86. Elaine

    Hey There. I discovered your blog using msn. That is a very neatly written article.
    I’ll be sure to bookmark it and come back to learn extra of your useful information. Thanks for
    the post. I’ll definitely comeback.

  101. Annabelle

    My brother recommended I might like this web site. He used to be
    entirely right. This post truly made my day. You cann’t believe just how
    so much time I had spent for this info! Thanks!

  103. Reuben

    Hello there! This is kind of off topic but I need some advice from
    an established blog. Is it tough to set up your own blog?
    I’m not very techincal but I can figure things out pretty fast.
    I’m thinking about creating my own but I’m not sure where to start.
    Do you have any tips or suggestions? Thanks

  105. Abbey

    Hi, Neat post. There is a problem with your site in web
    explorer, may check this? IE nonetheless is the market chief
    and a good component of other people will miss your great writing because of this problem.

Leave a Comment

Your email address will not be published.