The latest articles on Debug School by parameshwargouda (@parameshyuvi12). https://www.debug.school/parameshyuvi12 https://www.debug.school/images/o8oBz44pCk-pQAGndbil9ogg37uvuvcuyvPCKNytbI8/rs:fill:90:90/g:sm/mb:500000/ar:1/aHR0cHM6Ly93d3cu/ZGVidWcuc2Nob29s/L3VwbG9hZHMvdXNl/ci9wcm9maWxlX2lt/YWdlLzI5Ni9jNDZi/OWRkMC1iNDQxLTQ1/ODQtYTEwZS00MjEy/MDA5MmIzM2UucG5n https://www.debug.school/parameshyuvi12 en parameshwargouda Fri, 09 Dec 2022 07:44:06 +0000 https://www.debug.school/parameshyuvi12/my-understanding-about-docker-32a5 https://www.debug.school/parameshyuvi12/my-understanding-about-docker-32a5 <h2> <strong>what is a docker</strong>?? </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> it's a management tool , used to implement isolation for application by creating docker images and docker containers. </code></pre> </div> <h2> what is containers?? </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> it's a running instance of image include isolated root file system , user file system, app file system , network and PID tree </code></pre> </div> <h2> How docker works?? </h2> <p>it works using docker engine tool which includes <br> I) docker client API --&gt; communicate with docker server<br> ii) DockerD --&gt; communicates with container D<br> iii) container D provided by kernel OS which helps to <br> communicate with kernel</p> <h2> how container works???? </h2> <p>when we run the command--&gt; docker run {image name}<br> the above command will download the image file with the path what we specified from docker repo and it will ask the kernel to provide separate mount root file system, user file system ,app file system and network and PID</p> <h2> what are the components of docker?? </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> docker engine docker images docker container docker registry </code></pre> </div>