Docker: A popular tool for packaging an application with everything it needs into a container, so it runs the same way everywhere.
Example
Instead of installing a database on your laptop, you start one with a single Docker command.
Why Docker matters for IT interns
Many teams use Docker to make setup consistent, so "it works on my machine" problems happen less often.
Where you will hear it
You will hear this term when your team builds, deploys, and runs software on servers and cloud platforms. If someone uses it and you are not sure what they mean in your project, it is completely fine to ask; every team uses terms a little differently.
Related terms
- Continuous Integration (CI): Automatically building and testing the code every time someone pushes changes, so problems are caught early.
- Deployment: Moving a new version of software onto the servers or environment where it runs, so people can use it.
- DevOps: A way of working that brings development and operations together, using automation to build, release and run…
- Environment: A separate setup where an application runs for a specific purpose — such as development, testing, staging or…
- Google Cloud: Google’s cloud platform (often called GCP), with services for computing, storage, data analytics and AI.
- Kubernetes: A system for running and managing many containers across many servers — starting them, restarting failed ones…
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Related guides
Frequently asked questions
What is Docker?
A popular tool for packaging an application with everything it needs into a container, so it runs the same way everywhere.
What is an example of Docker?
Instead of installing a database on your laptop, you start one with a single Docker command.
Why does Docker matter for IT interns?
Many teams use Docker to make setup consistent, so "it works on my machine" problems happen less often.
Explore more internship terms
The IT Internship Glossary explains 199 terms you will hear before and during your internship, with simple definitions and real examples.
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About the author
Dhaivat has 16+ years of experience in the IT industry, working on AI and cloud technologies, project delivery, and engineering leadership. He has interviewed and mentored many interns, wrote The Lost Intern, and runs the non-commercial Career Impact Initiative, mentoring students for free.