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Top Docker Commands – You Need to Know

docker commands

Watching the demand for Cloud Computing, Docker is in high demand too. Learners want to learn Docker online. There are various options available to learn Docker online. Docker training mainly involves learning Docker Commands. There are more than 50 Docker commands.

This blog comprises a few common Docker commands, their use, architecture, and all about Docker training.

What is Docker?

Docker is a medium that allows building, deploying, and handling applications with the support of containers. A container makes an application runnable by packaging the code and all its reliances together. The container separates the application and its dependencies into a self-contained unit that can drive anywhere. Container withdraws the need for physical hardware that permits for more efficient computing resources use. Containers deliver operating-system-level virtualization. Moreover, developers can cooperate quickly without bothering regarding the software dependency they need to install.

A container is a running illustration of an image. An image is a read-only template with instructions for building a Docker container. You can make, begin, control, move, or delete a container with the Docker API or CLI. One can attach a single container to one or more networks and also attach storage to it. By checking the current state of the container, we can create a new image too!

What are the Docker Commands?

Here is a list of some Docker Commands:

  1. Docker Attach: Attach local standard input, output, and error streams to a running container.
  2. Docker Build: Build an image from a Dockerfile
  3. Docker Builder: Manage builds
  4. Docker Checkpoint: Manage checkpoints
  5. Docker Commit: Conatin a new image from the container’s changes
  6. Docker Config: Manage Config
  7. Docker Container: Mange Container
  8. Docker context: Manege Contexts
  9. Docker cp: Copy files/folders between a container and the local filesystem
  10. Docker creates: Create a new container
  11. Docker diff: Inspect changes to files or directories on a container’s filesystem
  12. Docker events: Get real-time events from the server
  13. Docker exec: Run a command in a running container
  14. Docker export: Export a container’s filesystem as a tar archive
  15. Docker history: Show the history of an image
  16. Docker image: Manage images
  17. Docker images: List images
  18. Docker import: Import the contents from a tarball to create a filesystem image
  19. Docker info: Display system-wide information
  20. Docker inspect: Return low-level information on Docker objects
  21. Docker kill: Kill one or more running containers
  22. Docker load: Load an image from a tar archive or STDIN
  23. Docker login: Login to a Docker registry
  24. Docker logout: Log out from a Docker registry
  25. Docker logs: Fetch the logs of a container
  26. Docker manifest: Manage Docker image manifests and manifest lists
  27. Docker network: Manage networks
  28. Docker node: Manage swarm nodes
  29. Docker pause: Pause all processes within one or more containers
  30. Docker plugin: Manage Plugins
  31. Docker port: List port mappings or a specific mapping for the container
  32. Docker PS: List Containers
  33. Docker pull: Pull an image or a repository from a registry
  34. Docker push: Push an image or a repository from a registry
  35. Docker rename: Rename a container
  36. Docker restart: Restart one or more containers
  37. Docker rm: Remove one or more containers
  38. Docker rmi: Remove one or more images
  39. Docker run: Run a command in a new container
  40. Docker save: Save one or more images to a tar archive (streamed to STDOUT by default)
  41. Docker search: Search the Docker Hub for images
  42. Docker secret: Manage Docker Secrets
  43. Docker service: Manage Service
  44. Docker stack: Manage Docker Service
  45. Docker start: Start one or more stopped containers
  46. Docker stats: Display a live stream of container(s) resource usage statistics
  47. Docker stop: Stop one or more running containers
  48. Docker Swarm: Manage Swarm
  49. Docker system: Manage Docker
  50. Docker tag: Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
  51. Docker top: Display the running processes of a container
  52. Docker trust: Manage trust on Docker images
  53. Docker unpauses: Unpause all processes within one or more containers
  54. Docker update: Update the configuration of one or more containers
  55. Docker version: Show the Docker version information
  56. Docker volume: Manage Volumes
  57. Docker wait: Block until one or more containers stop, then print their exit codes

What are the benefits of the Docker Commands?

Here are the reasons why a Developer must learn Docker Commands:

  • Docker facilitates how you devise and deploy your code, and handle your application.
  •  Importing your application into a container makes deployment and mounting smooth and drives automation. 
  • It makes DevOps effortless and makes your production environment rich.
  • With a more powerful push to Cloud every year, the container model will be the default model for software development, and Docker and Kubernetes will play a vital role shortly.
  • It adds an in-demand skill to their resume to get a better job.

What is the Docker use cases?

Let’s comprehend a few of the docker use cases: 

Use case 1: Developers write their code locally and share it using docker containers. 

Use case 2: Revising the bugs and employing them in the individual environments is as simple as pushing the image to the respective environment. 

Use case 3: Using docker one can propel their application to the test environment and perform computerised and manual tests.

Use case 4: One can make their deployment responsive and scalable by using docker since docker can manage dynamic workloads feasibility. 

What is the Docker Architecture?

The Docker Architecture generally consists of a Docker Engineer which is a client-server application with three major elements: 

  1. Generally, Docker pursues a client-server architecture. 
  2. The client conveys with the daemon, which takes up the task of installation, handling, and sending the docker containers. 
  3. The client and daemon convey using REST API calls. These calls work as an interface between the client and the daemon. 
  4. A command-line interface, Docker CLI executes docker commands.  
  5. The registry accumulates the docker images. 

What is a Docker Training?

Docker is an open medium that allows users to create, ship, and operate applications with ease. Docker software is packed in the form of containers- a docker standardized unit. These containers have all the components, such as system tools, libraries, runtime, and many more required by the software.

Docker training is a suite of software development tools for building, sharing, and handling individual containers. The Docker Training also trains you to use Docker commands.

What skills will you learn in the Docker Training?

The skills you will learn in the Docker Training are:

  • Container Basics
  • Docker images and public registry
  • Docker Private Registry
  • Docker Networking
  • Docker Storage
  • Building Docker Image
  • Docker Compose
  • Container Orchestration and Management
  • Deploying highly available and scalable application

What are the prerequisites for Docker Training?

Here is a list of prerequisites for Docker Training:

  • Graduation in any field.
  • Introductory knowledge of the IT industry.
  • Basic understanding of establishing and configuring applications.
  • Understanding Virtualization and Linux.
  • Fundamental knowledge of Cloud management.

What is the scope of Docker Training?

The scope of Docker Training is wide. You can enhance your Cloud Computing and Containerization skills with our Docker training. The scope of the course is as follows:

  • High salary: One can earn a considerable amount of salary with our Docker training.
  • Career advancement: You can get career advancement with a Docker certificate and learn to deploy these skills.
  • In-demand skills: Docker training is the most in-demand skill in the modern era with the increase in demand for cloud computing.
  • Diversity in learning: The learner gets a chance to learn various tools and ecosystems with the Docker training all at once as it contains numerous tools deployment.

Why Network Kings for a Docker course?

Network Kings is the best platform for the Docker course because it offers courses with experts. Let us discuss the benefits of learning a Docker course.

  • Networking: Build your network with our team to connect with them for the best Networking training. 
  • Comprehend with the best: Learn from industry professional experts. 
  • Structured Learning: Network King’s curriculum gives the best learning experience, designed by professionals.
  • Gain Certification: You will get certification with our Networking certification course. It will improve your resume and career opportunities.
  • World’s largest labs: Network Kings have 24/7 access to virtual labs with zero downtime.
  • Career Guidance: With Network Kings, you will get a career consultant via career consultants.
  • Tricks for Interviews: Network Kings will offer tips and tricks to crack interviews and AWS exams.
  • Recorded lectures: With recorded lectures, you will get access to the recorded lectures to learn at flexible hours progress.

What are the exam details of the Docker Training?

Here are the exam details of the Docker training:

Docker Certified Associate (DCA):

The details of the DCA exam are as follows:

Exam Name: DCA (Docker Certified Associate)

Exam Cost: USD 195

Exam Format: Multiple-choice questions

Total Questions: 55 questions

Passing Score: 65% or higher

Exam Duration: 90 minutes

Languages: English, Japanese

Testing Center: Pearson VUE

Certification validity: 2 years

NOTE: Know the top docker interview questions and answers by clicking on this link

What are the job opportunities after the Docker Training?

Here are the job roles after the Docker course:

  • Docker Administrator
  • DevOps Engineer
  • Cloud Engineer
  • Site Reliability Engineer (SRE)
  • Infrastructure Engineer
  • Kubernetes Developer
  • Docker Developer
  • Microservices Developer
  • Cloud Operations Engineer
  • Cloud Solutions Architect
  • Containerization Architect
  • Docker Consultant
  • Cloud Security Engineer
  • Continuous Integration and Deployment (CI/CD) Engineer
  • Systems Administrator
  • Cloud Migration Specialist
  • Cloud Automation Engineer
  • Cloud Platform Engineer

What are the salary expectations after the Docker Training?

Here are the salary prospects for Docker candidates: 

  • India: INR 6-15 lakhs per annum
  • China: CNY 150k-300k per annum
  • USA: USD 80k-150k per annum
  • UK: GBP 35k-70k per annum
  • Japan: JPY 6-12 million per annum
  • France: EUR 35k-70k per annum
  • Germany: EUR 40k-80k per annum
  • South Africa: ZAR 240k-600k per annum
  • Netherlands: EUR 45k-90k per annum
  • Singapore: SGD 50k-120k per annum
  • Australia: AUD 70k-140k per annum
  • Brazil: BRL 60k-120k per annum
  • Switzerland: CHF 80k-160k per annum

Conclusion

As we have discussed above, Docker training allows the learning of various Docker commands and Docker tools. More the knowledge, more the benefit. Also, Docker training is in demand due to the rise in Cloud computing.

One can earn a handsome salary package with Docker training in India and other countries. Also, you can learn Docker online with various benefits and ease.

You can pursue your Docker Training online with Network Kings. It will offer you various benefits and courses from industry experts.

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