title
Top 50 Docker Interview Questions & Answers | Frequently Asked Docker Interview Questions | Edureka
description
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This Edureka session on โDocker Interview Questionsโ will discuss the most frequently asked questions that you might face in a Docker interview.
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detail
{'title': 'Top 50 Docker Interview Questions & Answers | Frequently Asked Docker Interview Questions | Edureka', 'heatmap': [{'end': 121.05, 'start': 78.862, 'weight': 1}, {'end': 267.04, 'start': 196.993, 'weight': 0.717}, {'end': 465.759, 'start': 396.783, 'weight': 0.993}, {'end': 1330.003, 'start': 1300.19, 'weight': 0.977}], 'summary': 'Covers the rise of docker, its evolution to 8 billion container image downloads by 2017, basic and advanced docker interview questions, lifecycle and commands, essential docker commands, applications, and features, and docker container management including best practices, cloud service integration, and comparison with kubernetes.', 'chapters': [{'end': 66.052, 'segs': [{'end': 39.641, 'src': 'embed', 'start': 11.741, 'weight': 0, 'content': [{'end': 15.083, 'text': 'Docker hit the IT industry in the year 2013 soon.', 'start': 11.741, 'duration': 3.342}, {'end': 21.528, 'text': 'It turned out to be a bigger hit by the end of 2017, with 8 billion container image downloads.', 'start': 15.183, 'duration': 6.345}, {'end': 26.291, 'text': 'increasing demand for Docker showed an exponential increase in job openings guys.', 'start': 21.528, 'duration': 4.763}, {'end': 31.035, 'text': 'This is Arvind here from Edureka and I welcome you all to this amazing session on Docker interview questions.', 'start': 26.331, 'duration': 4.704}, {'end': 35.558, 'text': "So before we move any further, let us have a quick look at the agenda for today's session.", 'start': 31.695, 'duration': 3.863}, {'end': 39.641, 'text': "So as you can see here, we'll be starting with the beginner level of interview questions.", 'start': 36.339, 'duration': 3.302}], 'summary': 'Docker gained popularity with 8 billion container image downloads by 2017, leading to a surge in job openings.', 'duration': 27.9, 'max_score': 11.741, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA11741.jpg'}], 'start': 11.741, 'title': 'The rise of docker', 'summary': 'Discusses the evolution of docker, from its 2013 inception to 8 billion container image downloads by 2017, driving job openings and its significance in devops.', 'chapters': [{'end': 66.052, 'start': 11.741, 'title': 'Rise of docker in it industry', 'summary': 'Discusses the rise of docker in the it industry, from its inception in 2013 to reaching 8 billion container image downloads by 2017, leading to a surge in job openings and its importance in devops.', 'duration': 54.311, 'highlights': ['By the end of 2017, Docker had 8 billion container image downloads, indicating its significant impact on the IT industry.', 'The increasing demand for Docker led to an exponential rise in job openings, highlighting its growing importance in the job market.', 'The session covers beginner, intermediate, and advanced interview questions, catering to individuals at different expertise levels.', 'The speaker encourages subscription to the Edureka YouTube channel and promotes a DevOps course, indicating the focus on educational resources related to Docker and DevOps.']}], 'duration': 54.311, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA11741.jpg', 'highlights': ['By the end of 2017, Docker had 8 billion container image downloads, indicating its significant impact on the IT industry.', 'The increasing demand for Docker led to an exponential rise in job openings, highlighting its growing importance in the job market.']}, {'end': 556.419, 'segs': [{'end': 121.05, 'src': 'heatmap', 'start': 78.862, 'weight': 1, 'content': [{'end': 83.765, 'text': 'So let us begin with our first question, and the first question here is what is hypervisor?', 'start': 78.862, 'duration': 4.903}, {'end': 86.927, 'text': 'a hypervisor is a software that makes virtualization possible.', 'start': 83.765, 'duration': 3.162}, {'end': 89.648, 'text': 'It is also called virtual machine monitor.', 'start': 87.507, 'duration': 2.141}, {'end': 96.132, 'text': 'It divides the host system and allocates the resources to each of the divided virtual environment.', 'start': 90.289, 'duration': 5.843}, {'end': 100.507, 'text': 'You can basically have multiple operating systems on a single host system.', 'start': 96.806, 'duration': 3.701}, {'end': 103.327, 'text': 'So basically there are two types of hypervisors.', 'start': 101.167, 'duration': 2.16}, {'end': 105.648, 'text': 'The first one is the type 1 hypervisor.', 'start': 103.807, 'duration': 1.841}, {'end': 109.888, 'text': 'It is also called the native hypervisor or bare metal hypervisor.', 'start': 106.348, 'duration': 3.54}, {'end': 113.309, 'text': 'It runs directly on the underlying host system.', 'start': 110.629, 'duration': 2.68}, {'end': 121.05, 'text': 'It has direct access to your host system hardware and hence does not require a base over operating system,', 'start': 114.029, 'duration': 7.021}], 'summary': 'Hypervisor enables virtualization, dividing resources for multiple os on a single host. two types: type 1 runs directly on host hardware, no base os needed.', 'duration': 42.188, 'max_score': 78.862, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA78862.jpg'}, {'end': 121.05, 'src': 'embed', 'start': 87.507, 'weight': 0, 'content': [{'end': 89.648, 'text': 'It is also called virtual machine monitor.', 'start': 87.507, 'duration': 2.141}, {'end': 96.132, 'text': 'It divides the host system and allocates the resources to each of the divided virtual environment.', 'start': 90.289, 'duration': 5.843}, {'end': 100.507, 'text': 'You can basically have multiple operating systems on a single host system.', 'start': 96.806, 'duration': 3.701}, {'end': 103.327, 'text': 'So basically there are two types of hypervisors.', 'start': 101.167, 'duration': 2.16}, {'end': 105.648, 'text': 'The first one is the type 1 hypervisor.', 'start': 103.807, 'duration': 1.841}, {'end': 109.888, 'text': 'It is also called the native hypervisor or bare metal hypervisor.', 'start': 106.348, 'duration': 3.54}, {'end': 113.309, 'text': 'It runs directly on the underlying host system.', 'start': 110.629, 'duration': 2.68}, {'end': 121.05, 'text': 'It has direct access to your host system hardware and hence does not require a base over operating system,', 'start': 114.029, 'duration': 7.021}], 'summary': 'Hypervisor divides host system, allows multiple os, 2 types: type 1 runs directly on hardware.', 'duration': 33.543, 'max_score': 87.507, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA87507.jpg'}, {'end': 175.467, 'src': 'embed', 'start': 151.089, 'weight': 4, 'content': [{'end': 158.955, 'text': 'Virtualization lets you split one system into many different sections which act like separate, distinct individual systems.', 'start': 151.089, 'duration': 7.866}, {'end': 162.798, 'text': 'a software called hypervisor makes this kind of splitting possible.', 'start': 158.955, 'duration': 3.843}, {'end': 166.801, 'text': 'the virtual environment created by the hypervisor is called a virtual machine.', 'start': 162.798, 'duration': 4.003}, {'end': 172.425, 'text': 'The next question here is what is containerization? So let me explain this with an example.', 'start': 167.701, 'duration': 4.724}, {'end': 175.467, 'text': 'Usually, in the software development process,', 'start': 173.266, 'duration': 2.201}], 'summary': 'Virtualization splits one system into multiple sections using a hypervisor to create virtual machines, while containerization is a concept used in software development.', 'duration': 24.378, 'max_score': 151.089, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA151089.jpg'}, {'end': 267.04, 'src': 'heatmap', 'start': 196.993, 'weight': 0.717, 'content': [{'end': 201.804, 'text': 'now, when you wish to run the application on another system, The container is deployed,', 'start': 196.993, 'duration': 4.811}, {'end': 207.805, 'text': 'which will give a bug-free environment as all the dependencies and libraries are wrapped together.', 'start': 201.804, 'duration': 6.001}, {'end': 211.846, 'text': 'most famous containerization environments include doctor and kubernetes.', 'start': 207.805, 'duration': 4.041}, {'end': 217.948, 'text': 'So the next question here is what is the difference between virtualization and containerization?', 'start': 212.726, 'duration': 5.222}, {'end': 222.008, 'text': 'you guys can have a look at the diagram that is present on your screen right now.', 'start': 217.948, 'duration': 4.06}, {'end': 225.809, 'text': 'containers provide an isolated environment for running the application.', 'start': 222.008, 'duration': 3.801}, {'end': 230.23, 'text': 'The entire user space is explicitly dedicated to the application.', 'start': 226.409, 'duration': 3.821}, {'end': 238.231, 'text': 'Any changes made inside the container is never reflected on the horse or even other containers running on the same host.', 'start': 230.965, 'duration': 7.266}, {'end': 244.335, 'text': 'containers are nothing but an abstraction of the application layer and each container is a different application.', 'start': 238.231, 'duration': 6.104}, {'end': 247.097, 'text': 'So this was the concept of containerization.', 'start': 245.036, 'duration': 2.061}, {'end': 254.863, 'text': 'Whereas in virtualization hypervisors provide an entire virtual machine to the guest, which includes the kernel as well,', 'start': 247.658, 'duration': 7.205}, {'end': 260.187, 'text': 'virtual machines are an abstraction of the hardware layer and each virtual machine is a physical machine.', 'start': 254.863, 'duration': 5.324}, {'end': 267.04, 'text': 'So this were the differences between virtual machines and containers or you can say virtualization and containerization.', 'start': 260.836, 'duration': 6.204}], 'summary': 'Containerization provides isolated environment for running applications, unlike virtualization.', 'duration': 70.047, 'max_score': 196.993, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA196993.jpg'}, {'end': 308.226, 'src': 'embed', 'start': 280.228, 'weight': 1, 'content': [{'end': 286.652, 'text': 'so as to ensure that your application works seamlessly in any environment, be development, testing or production.', 'start': 280.228, 'duration': 6.424}, {'end': 296.338, 'text': 'Docker containers wrap a piece of software in a complete file system that contains everything needed to run, that is, code, runtime, environment,', 'start': 287.512, 'duration': 8.826}, {'end': 298.579, 'text': 'system tools, system libraries, etc.', 'start': 296.338, 'duration': 2.241}, {'end': 303.563, 'text': 'It wraps basically anything that can be installed on a server.', 'start': 299.3, 'duration': 4.263}, {'end': 308.226, 'text': 'this guarantees that the software will always run the same, regardless of the environment.', 'start': 303.563, 'duration': 4.663}], 'summary': 'Docker containers ensure consistent software performance across environments.', 'duration': 27.998, 'max_score': 280.228, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA280228.jpg'}, {'end': 469.543, 'src': 'heatmap', 'start': 382.616, 'weight': 2, 'content': [{'end': 389.9, 'text': 'So as we saw in the previous question there has to be a registry where these docker images live this registry is known as docker hub.', 'start': 382.616, 'duration': 7.284}, {'end': 396.783, 'text': 'So users can pick up images from the docker hub and use them to create customized images and containers.', 'start': 390.52, 'duration': 6.263}, {'end': 401.606, 'text': "currently, the docker hub is the world's largest public repository of image containers.", 'start': 396.783, 'duration': 4.823}, {'end': 408.968, 'text': 'So the next question here is explain docker architecture so you can refer to the diagram that is present on your screen right now.', 'start': 402.423, 'duration': 6.545}, {'end': 415.593, 'text': 'So docker architecture basically consists of our docker engine, which is a client server application with three major components.', 'start': 409.729, 'duration': 5.864}, {'end': 420.977, 'text': 'The first one is a server which is a type of long-running program called a demon process.', 'start': 416.314, 'duration': 4.663}, {'end': 429.564, 'text': 'The second component is a rest API which specifies interfaces that programs can use to talk to the demon and instruct it what to do.', 'start': 421.658, 'duration': 7.906}, {'end': 434.93, 'text': 'The third component here is the CLI, that is, command-line interface or decline.', 'start': 430.188, 'duration': 4.742}, {'end': 444.635, 'text': 'and the fourth thing here is the CLI uses the docker rest API to control or interact with the docker demon through scripting or direct CLI commands.', 'start': 434.93, 'duration': 9.705}, {'end': 448.437, 'text': 'many other docker applications use the underlying API and the CLI.', 'start': 444.635, 'duration': 3.802}, {'end': 456.341, 'text': 'So these were the important components of docker architecture that you can answer when you face such a question in your interviews.', 'start': 449.078, 'duration': 7.263}, {'end': 459.263, 'text': 'So the next question here is what is a docker file?', 'start': 457.182, 'duration': 2.081}, {'end': 465.759, 'text': 'Docker can build images automatically by reading the instructions from a file called the docker file,', 'start': 460.074, 'duration': 5.685}, {'end': 469.543, 'text': 'or docker file is a text document that contains all the commands.', 'start': 465.759, 'duration': 3.784}], 'summary': 'Docker hub is the largest public repository. docker architecture consists of engine, api, and cli. dockerfile automates image building.', 'duration': 86.927, 'max_score': 382.616, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA382616.jpg'}, {'end': 507.734, 'src': 'embed', 'start': 485.242, 'weight': 3, 'content': [{'end': 493.586, 'text': 'A docker-compose is a yaml file which contains details about the services networks and volumes for setting up the docker application.', 'start': 485.242, 'duration': 8.344}, {'end': 501.771, 'text': 'So you can use docker-compose to create separate containers, host them and get them to communicate with each other.', 'start': 494.287, 'duration': 7.484}, {'end': 506.593, 'text': 'each container will expose a port for communicating with the other container.', 'start': 501.771, 'duration': 4.822}, {'end': 507.734, 'text': 'moving on to the next question,', 'start': 506.593, 'duration': 1.141}], 'summary': 'Docker-compose file sets up services, networks, and volumes for docker app. it creates separate containers, hosts, and enables communication via exposed ports.', 'duration': 22.492, 'max_score': 485.242, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA485242.jpg'}], 'start': 66.755, 'title': 'Docker interview questions and overview', 'summary': 'Covers basic docker interview questions, including hypervisor definition and types. it also explains virtualization, containerization, and docker, highlighting differences, benefits, key components, docker architecture, files, hub, and compose.', 'chapters': [{'end': 133.574, 'start': 66.755, 'title': 'Basic docker interview questions', 'summary': 'Covers basic docker interview questions, including the definition and types of hypervisors and their functions in virtualization.', 'duration': 66.819, 'highlights': ['Hypervisor is a software that enables virtualization, dividing the host system and allocating resources to each virtual environment, allowing multiple operating systems on a single host system.', 'There are two types of hypervisors: type 1 (native/bare metal) which runs directly on the host system, and type 2 (hosted) which uses the underlying host operating system.', 'The category comprises basic level questions which serve as the foundation for further interview questions in docker.', 'Interviewers typically start with basic level questions and gradually increase the difficulty during the interview process.']}, {'end': 556.419, 'start': 133.574, 'title': 'Virtualization, containerization, and docker overview', 'summary': 'Explains the concepts of virtualization, containerization, and docker, highlighting the differences, benefits, and key components, with details on docker architecture, docker files, docker hub, and docker compose.', 'duration': 422.845, 'highlights': ['Docker containers wrap a piece of software in a complete file system containing everything needed to run, ensuring it runs the same regardless of the environment. Docker containers bundle applications and dependencies, guaranteeing consistent performance across different environments.', 'Virtualization lets you split one system into many different sections, each acting as separate, distinct individual systems. Virtualization allows for the creation of multiple virtual environments from a single physical hardware system, facilitating resource optimization.', "Docker Hub is the world's largest public repository of image containers, allowing users to pick up images and use them to create customized images and containers. Docker Hub serves as a registry for Docker images, enabling users to access and utilize a wide variety of images for their applications.", 'Docker Compose is a YAML file used to set up Docker applications, enabling the creation of separate containers, hosting, and communication between them. Docker Compose provides a convenient way to define and manage multi-container Docker applications, streamlining the orchestration process.', 'Docker architecture consists of the Docker engine, comprising a server, a REST API, and a CLI, allowing programmatic control and interaction with Docker components. The Docker architecture includes a server, a REST API, and a CLI, providing a robust framework for managing Docker containers and images.']}], 'duration': 489.664, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA66755.jpg', 'highlights': ['Hypervisor enables virtualization, dividing the host system and allocating resources to each virtual environment.', 'Docker containers wrap a piece of software in a complete file system containing everything needed to run.', "Docker Hub is the world's largest public repository of image containers, allowing users to pick up images and use them to create customized images and containers.", 'Docker Compose is a YAML file used to set up Docker applications, enabling the creation of separate containers, hosting, and communication between them.', 'Virtualization lets you split one system into many different sections, each acting as separate, distinct individual systems.']}, {'end': 893.109, 'segs': [{'end': 611.969, 'src': 'embed', 'start': 576.954, 'weight': 3, 'content': [{'end': 580.616, 'text': 'So, first you create a container and then you run the container.', 'start': 576.954, 'duration': 3.662}, {'end': 586.679, 'text': 'after these operations or the phases, what you can do is you can pause and unpause the container,', 'start': 580.616, 'duration': 6.063}, {'end': 591.121, 'text': "depending upon your requirement or the application that you're trying to run on,", 'start': 586.679, 'duration': 4.442}, {'end': 594.803, 'text': 'and after that you stop the container and also you can restart the container.', 'start': 591.121, 'duration': 3.682}, {'end': 600.322, 'text': "and once you're done by using containers after that you can kill the container and then destroy it.", 'start': 595.399, 'duration': 4.923}, {'end': 603.984, 'text': 'So these were the lifecycle phases of a docker container.', 'start': 601.063, 'duration': 2.921}, {'end': 611.969, 'text': 'So the next question is what is docker machine docker machine is a tool that lets you install docker engine on virtual hosts.', 'start': 604.745, 'duration': 7.224}], 'summary': 'The lifecycle phases of a docker container include creating, running, pausing, unpausing, stopping, restarting, killing, and destroying. docker machine is a tool for installing docker engine on virtual hosts.', 'duration': 35.015, 'max_score': 576.954, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA576954.jpg'}, {'end': 659.914, 'src': 'embed', 'start': 634.515, 'weight': 1, 'content': [{'end': 639.417, 'text': 'So the interviewer will obviously try to know whether you have hands-on experience using docker or not.', 'start': 634.515, 'duration': 4.902}, {'end': 642.159, 'text': 'So let us move to the next question.', 'start': 640.178, 'duration': 1.981}, {'end': 647.201, 'text': 'So the next question here is how to check for the docker client and the server version.', 'start': 642.899, 'duration': 4.302}, {'end': 650.943, 'text': 'So as you can see on the screen the command for that is very simple.', 'start': 648.022, 'duration': 2.921}, {'end': 654.485, 'text': 'You simply have to type docker version in your terminal.', 'start': 651.604, 'duration': 2.881}, {'end': 656.392, 'text': 'So let me just quickly show you.', 'start': 655.071, 'duration': 1.321}, {'end': 659.914, 'text': 'So let me just log into my CentOS.', 'start': 657.573, 'duration': 2.341}], 'summary': 'Interviewer inquires about docker experience and how to check version.', 'duration': 25.399, 'max_score': 634.515, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA634515.jpg'}, {'end': 729.104, 'src': 'embed', 'start': 700.258, 'weight': 2, 'content': [{'end': 702.539, 'text': 'as you can see on the screen, the command for that is very simple.', 'start': 700.258, 'duration': 2.281}, {'end': 705.56, 'text': 'You simply have to type docker info in your terminal.', 'start': 702.959, 'duration': 2.601}, {'end': 710.082, 'text': 'So let me just quickly show you that command docker info.', 'start': 706.22, 'duration': 3.862}, {'end': 717.737, 'text': 'So as you can see here once you run this command.', 'start': 715.555, 'duration': 2.182}, {'end': 722.9, 'text': 'So here you can see the number of containers.', 'start': 721.239, 'duration': 1.661}, {'end': 726.282, 'text': 'We have 16 out of which none of them is running.', 'start': 723.56, 'duration': 2.722}, {'end': 729.104, 'text': 'None of them is paused and all are stopped.', 'start': 726.722, 'duration': 2.382}], 'summary': "Using 'docker info' command shows 16 containers, all stopped.", 'duration': 28.846, 'max_score': 700.258, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA700258.jpg'}, {'end': 802.437, 'src': 'embed', 'start': 771.823, 'weight': 0, 'content': [{'end': 778.146, 'text': 'So, once you type this command, these are the commands that you can use with docker attach, build command CP.', 'start': 771.823, 'duration': 6.323}, {'end': 780.527, 'text': 'as you can see, this is a long list here.', 'start': 778.146, 'duration': 2.381}, {'end': 786.289, 'text': 'So the docker space hyphen hyphen help command will help you on using a particular command.', 'start': 781.427, 'duration': 4.862}, {'end': 792.192, 'text': 'So say, for example, this is the list of commands here, as you can see, and so say, for example,', 'start': 787.01, 'duration': 5.182}, {'end': 794.673, 'text': 'this is the command that you wish to know more about run command.', 'start': 792.192, 'duration': 2.481}, {'end': 802.437, 'text': 'So for that what you need to do is you have to type docker the command name if an even help.', 'start': 795.233, 'duration': 7.204}], 'summary': "Docker provides a long list of commands, accessible via 'docker --help', aiding in specific command usage.", 'duration': 30.614, 'max_score': 771.823, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA771823.jpg'}, {'end': 842.224, 'src': 'embed', 'start': 815.782, 'weight': 5, 'content': [{'end': 821.684, 'text': 'So this is the description of the command here and these are the options here that you can use with the run command.', 'start': 815.782, 'duration': 5.902}, {'end': 827.025, 'text': 'So this was the usage of the help command here.', 'start': 824.244, 'duration': 2.781}, {'end': 829.286, 'text': 'So let me just clear the terminal here.', 'start': 827.786, 'duration': 1.5}, {'end': 834.361, 'text': "So let's move on to the next question here.", 'start': 832.56, 'duration': 1.801}, {'end': 842.224, 'text': 'So the next question here is how to login into a docker repository says you can see on the screen the command for that is very simple.', 'start': 835.341, 'duration': 6.883}], 'summary': 'Described command options, cleared terminal, discussed logging into docker repository.', 'duration': 26.442, 'max_score': 815.782, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA815782.jpg'}], 'start': 557.059, 'title': 'Docker container lifecycle & basic commands and docker command help and repository login', 'summary': "Discusses the life cycle of a docker container, including phases like create, run, pause, unpause, stop, restart, kill, and destroy, along with details on docker machine tool, checking docker client and server version, and the number of containers. it also covers using 'docker help' command to access a list of commands and their usage, and the process of logging into a docker repository using the 'docker login' command.", 'chapters': [{'end': 746.457, 'start': 557.059, 'title': 'Docker container lifecycle & basic commands', 'summary': 'Discusses the life cycle of a docker container, covering phases like create, run, pause, unpause, stop, restart, kill, and destroy, and also explains the docker machine tool and how to check for the docker client and server version as well as the number of containers running, paused, and stopped.', 'duration': 189.398, 'highlights': ['The life cycle of a Docker container includes phases like create, run, pause, unpause, stop, restart, kill, and destroy. The life cycle of a Docker container involves several phases like create, run, pause, unpause, stop, restart, kill, and destroy.', 'Docker machine is a tool that allows installation of Docker engine on virtual hosts and management of these hosts using docker machine commands. Docker machine is a tool used to install Docker engine on virtual hosts and manage them using docker machine commands.', "The command 'docker version' is used to check the client and server version, providing details such as client version, server version, API version, and package version. The 'docker version' command is used to check the client and server version, providing details like client version, server version, API version, and package version.", "The command 'docker info' can be used to determine the number of containers, running, paused, and stopped, and also the number of images available. The 'docker info' command can be used to determine the number of containers running, paused, and stopped, as well as the number of available images."]}, {'end': 893.109, 'start': 746.837, 'title': 'Docker command help and repository login', 'summary': "Covers using the 'docker help' command to access a list of commands and their usage, and the process of logging into a docker repository, with a demonstration of using the 'docker login' command.", 'duration': 146.272, 'highlights': ["Using 'docker help' command provides a list of commands and their usage The 'docker help' command displays a list of commands available for use with Docker, such as attach, build, and CP, enabling users to understand the usage of a specific command.", "Demonstrating the process of logging into a Docker repository using 'docker login' command The transcript demonstrates the process of logging into a Docker repository by showing the command 'docker login' and providing a step-by-step guide, including entering the username and password, and receiving a 'login succeeded' message."]}], 'duration': 336.05, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA557059.jpg', 'highlights': ["The 'docker help' command displays a list of commands available for use with Docker, such as attach, build, and CP, enabling users to understand the usage of a specific command.", "The 'docker version' command is used to check the client and server version, providing details like client version, server version, API version, and package version.", "The 'docker info' command can be used to determine the number of containers running, paused, and stopped, as well as the number of available images.", 'Docker machine is a tool used to install Docker engine on virtual hosts and manage them using docker machine commands.', 'The life cycle of a Docker container involves several phases like create, run, pause, unpause, stop, restart, kill, and destroy.', "The transcript demonstrates the process of logging into a Docker repository by showing the command 'docker login' and providing a step-by-step guide, including entering the username and password, and receiving a 'login succeeded' message."]}, {'end': 1323.418, 'segs': [{'end': 992.58, 'src': 'embed', 'start': 920.38, 'weight': 1, 'content': [{'end': 924.504, 'text': 'So as you can see here MongoDB node.js radius.', 'start': 920.38, 'duration': 4.124}, {'end': 927.107, 'text': 'These are the images that you can pull here.', 'start': 925.485, 'duration': 1.622}, {'end': 930.63, 'text': 'So say for example, you have to pull an image called Postgres.', 'start': 927.948, 'duration': 2.682}, {'end': 938.779, 'text': 'So this is basically a database here and command for that is very simple as you can see on the screen docker pull Postgres.', 'start': 931.912, 'duration': 6.867}, {'end': 950.178, 'text': 'So as you can see here docker is pulling that image from the docker up.', 'start': 946.957, 'duration': 3.221}, {'end': 953.439, 'text': 'And this might take a few seconds.', 'start': 951.879, 'duration': 1.56}, {'end': 968.124, 'text': 'Okay As you can see here docker is extracting the images related to postgres.', 'start': 959.821, 'duration': 8.303}, {'end': 977.951, 'text': "So as you can see here the image has been pulled So let's move on to the next question.", 'start': 972.905, 'duration': 5.046}, {'end': 981.293, 'text': 'How do you create a docker container from an image?', 'start': 978.511, 'duration': 2.782}, {'end': 988.778, 'text': 'So, as you can see on the screen, the command for that is very simple docker, run-it space, hyphen D and the name of the image.', 'start': 982.113, 'duration': 6.665}, {'end': 992.58, 'text': 'So let me just quickly show you before that.', 'start': 989.678, 'duration': 2.902}], 'summary': 'Using mongodb node.js, pull images with docker, and create docker container from image with simple commands.', 'duration': 72.2, 'max_score': 920.38, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA920380.jpg'}, {'end': 1054.335, 'src': 'embed', 'start': 1027.545, 'weight': 4, 'content': [{'end': 1032.328, 'text': 'So docker space PS says you can see here.', 'start': 1027.545, 'duration': 4.783}, {'end': 1034.949, 'text': 'None of the containers are running at the moment.', 'start': 1032.808, 'duration': 2.141}, {'end': 1038.152, 'text': 'So that is why all of these fields are blank.', 'start': 1035.632, 'duration': 2.52}, {'end': 1043.553, 'text': "So let's move on to the next question.", 'start': 1042.173, 'duration': 1.38}, {'end': 1046.954, 'text': 'So the next question here is how do you access a running container?', 'start': 1044.273, 'duration': 2.681}, {'end': 1054.335, 'text': 'So, as you can see the command for that is very simple docker, eccc-it, the container ID and the bash command.', 'start': 1047.714, 'duration': 6.621}], 'summary': "None of the containers are running at the moment. next: accessing a running container with 'docker exec' command.", 'duration': 26.79, 'max_score': 1027.545, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA1027545.jpg'}, {'end': 1129.757, 'src': 'embed', 'start': 1074.716, 'weight': 3, 'content': [{'end': 1084.76, 'text': 'So, let me just type this command here episode docker xec-it the container ID that we just copied here.', 'start': 1074.716, 'duration': 10.044}, {'end': 1091.223, 'text': 'Let me just paste it here and bash says you can see here.', 'start': 1084.82, 'duration': 6.403}, {'end': 1095.381, 'text': 'Right now I am inside that container and I can do whatever operations that I want.', 'start': 1091.658, 'duration': 3.723}, {'end': 1098.244, 'text': 'So this is how you access a container.', 'start': 1096.322, 'duration': 1.922}, {'end': 1100.926, 'text': "So let's just move on to the next question here.", 'start': 1099.205, 'duration': 1.721}, {'end': 1106.491, 'text': 'So how to start stop and kill a container says you can see on the screen.', 'start': 1101.827, 'duration': 4.664}, {'end': 1111.015, 'text': 'These are the simple commands to do that docker start and the container ID.', 'start': 1106.511, 'duration': 4.504}, {'end': 1115.759, 'text': 'similarly, docker stop and the container ID and docker kill space the container ID.', 'start': 1111.015, 'duration': 4.744}, {'end': 1123.773, 'text': 'So let me just quickly show you So since this container Ubuntu is already running so let me just stop it.', 'start': 1116.54, 'duration': 7.233}, {'end': 1129.757, 'text': 'Okay, so let me just clear the terminal first.', 'start': 1127.336, 'duration': 2.421}], 'summary': 'Demonstrating accessing, starting, stopping, and killing a docker container.', 'duration': 55.041, 'max_score': 1074.716, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA1074716.jpg'}, {'end': 1288.427, 'src': 'embed', 'start': 1192.051, 'weight': 6, 'content': [{'end': 1198.235, 'text': 'as you can see on the screen docker commit the container ID and after that the username and image name.', 'start': 1192.051, 'duration': 6.184}, {'end': 1201.497, 'text': 'So this was one very simple command to do this.', 'start': 1199.075, 'duration': 2.422}, {'end': 1205.679, 'text': 'So let me just quickly show you let me just clear the terminal here first.', 'start': 1202.437, 'duration': 3.242}, {'end': 1209.359, 'text': 'So the command for that is doctor comment.', 'start': 1206.758, 'duration': 2.601}, {'end': 1212.68, 'text': 'The container ID.', 'start': 1211.519, 'duration': 1.161}, {'end': 1219.001, 'text': 'This is the container ID of Ubuntu and space the image name.', 'start': 1214.46, 'duration': 4.541}, {'end': 1231.005, 'text': 'So as you can see here docker commit container ID and either you can type your image name here or the username here.', 'start': 1219.021, 'duration': 11.984}, {'end': 1235.026, 'text': 'Okay So once you do that, this will give you one SHA key.', 'start': 1231.185, 'duration': 3.841}, {'end': 1241.08, 'text': 'Okay, The next question is once you have worked with an image, how do you push it to the docker up??', 'start': 1235.206, 'duration': 5.874}, {'end': 1248.184, 'text': 'So the command for that is very simple, as you can see on the screen docker, push the username or the image name here.', 'start': 1241.86, 'duration': 6.324}, {'end': 1253.587, 'text': "Okay, let's just move on to the next question here how to delete a stopped container.", 'start': 1248.364, 'duration': 5.223}, {'end': 1259.951, 'text': 'So as we saw previously the command for stopping a container is docker stop and the container ID.', 'start': 1254.468, 'duration': 5.483}, {'end': 1268.153, 'text': 'And once you stop a container if you want to delete it, you can use the following command as you can see on the screen docker RM and the container ID.', 'start': 1260.868, 'duration': 7.285}, {'end': 1272.996, 'text': 'So the next question here is how to delete an image from the local storage system.', 'start': 1269.254, 'duration': 3.742}, {'end': 1278.94, 'text': 'So similar to RM the command for this is docker RMI and the image ID.', 'start': 1273.757, 'duration': 5.183}, {'end': 1282.523, 'text': 'The next question here is how to build a docker file.', 'start': 1279.921, 'duration': 2.602}, {'end': 1288.427, 'text': 'So once you have written a docker file, you need to build it to create an image with the required specifications.', 'start': 1283.223, 'duration': 5.204}], 'summary': 'Docker commands and procedures shown, including commit, push, delete, and build.', 'duration': 96.376, 'max_score': 1192.051, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA1192051.jpg'}, {'end': 1333.605, 'src': 'embed', 'start': 1307.493, 'weight': 0, 'content': [{'end': 1314.711, 'text': 'So the command, as you can see on the screen, is very simple docker system prune, and this command is used to remove all the stopped containers,', 'start': 1307.493, 'duration': 7.218}, {'end': 1323.418, 'text': 'all the networks that are not used, all the dangling images and all built caches, and this is one of the most useful commands in docker.', 'start': 1314.711, 'duration': 8.707}, {'end': 1330.003, 'text': 'So with this we have come to the end of the intermediate level of questions, which were basically related to the docker commands.', 'start': 1324.118, 'duration': 5.885}, {'end': 1333.605, 'text': "So now let's just move on to the advanced level of questions.", 'start': 1330.843, 'duration': 2.762}], 'summary': "The 'docker system prune' command removes stopped containers, unused networks, dangling images, and built caches, making it one of the most useful commands in docker.", 'duration': 26.112, 'max_score': 1307.493, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/ViYjHfbmBYA/pics/ViYjHfbmBYA1307493.jpg'}], 'start': 893.169, 'title': 'Docker commands overview', 'summary': "Covers essential docker commands for pulling images, creating containers, accessing and managing them, including creating, pushing, and deleting images, building a docker file, and utilizing the 'docker system prune' command to remove unused resources.", 'chapters': [{'end': 1192.051, 'start': 893.169, 'title': 'Docker commands and container management', 'summary': 'Covers the basic docker commands for pulling images, creating containers, accessing and managing them, with specific examples and clear instructions on how to execute each command.', 'duration': 298.882, 'highlights': ["The command 'docker pull' is used to download images from the docker hub website, such as MongoDB, node.js, and Postgres, which can be easily pulled using the command 'docker pull