Book a free consultation (opens in a new tab)

Cloud & DevOps / Docker

Docker Containerization Services

Containerizing your application with Docker: Dockerfiles, image builds, registries and dev/local parity, so it runs the same on a laptop, in staging and in production.

  • 1Dockerfile per service, versioned
  • 1-3 wksTypical time to containerize
  • 100%Parity between local, staging
  • Fewer"Works on my machine" surprises

Why It Matters

"Works on my machine" is a symptom of environment drift

The same image runs locally, in staging and in production

Instead of three separate installation processes drifting apart over time, one image is built once and promoted through each environment unchanged, so what passed staging is exactly what reaches production.

  • The same image, promoted, not rebuilt per environment
  • Dependency versions locked into the image itself
  • Fewer environment-specific bugs to chase down

A new developer runs one command instead of a setup guide

Once the application is containerized, a new team member can get a working local environment by pulling the images rather than following a long list of manual installation steps.

  • A working local setup in minutes, not a full day
  • No manual installation guide to keep updated
  • Local behavior matches what runs in production

From a bare application to a set of versioned images

  1. Map dependencies

    We identify what each part of the application needs to run, including anything currently installed by hand.

  2. Write the Dockerfiles

    A Dockerfile is written for each service, declaring dependencies and build steps explicitly.

  3. Build and test images

    Images are built and tested locally to confirm they behave the same as the current setup.

  4. Set up the registry

    A container registry is configured to store and version images across environments.

  5. Confirm dev/local parity

    Local, staging and production are checked to confirm they run the same image and configuration pattern.

Everything covered in a Docker containerization engagement

  • Dockerfile authoring

    A Dockerfile written for each service in your application, not a generic template.

  • Image builds

    Images built, tagged and tested against your current application behavior.

  • Registry setup

    A container registry configured to fit your existing cloud provider or infrastructure.

  • Dev/local parity

    A developer's local environment matches staging and production, not a separate setup.

  • Configuration separation

    Environment-specific settings are separated from the image, so one image serves every environment.

  • Documentation

    Build and run instructions documented for the team to maintain going forward.

Why teams choose TCB Infotech for Docker containerization

  • We test against real application behavior

    Images are verified to behave the same as your current setup, not just to build without errors.

  • Registry choice fits your infrastructure

    We configure the registry that matches your existing cloud provider, not a fixed default.

  • Dev/local parity is checked, not assumed

    We confirm local, staging and production actually match before calling the work done.

  • A clean base for what comes next

    Containerized services are ready to move into Kubernetes or a managed pipeline when you are.

  • Documentation from day one

    Build and run steps are documented, so the work does not sit in one engineer's memory.

Docker Containerization, answered

What exactly do you set up when you containerize an application?

We write the Dockerfiles for each part of the application, build and tag the images, set up a container registry to store them, and configure the application so a developer's local environment matches staging and production.

Does this work for an application that was not built with containers in mind?

Yes. Most applications we containerize were not designed for it originally. The work usually involves separating configuration from code and making sure dependencies are declared explicitly, so the application behaves the same in a container as it did before.

What is dev/local parity and why does it matter?

It means a developer's local setup uses the same container images and configuration as staging and production, so a bug that only appeared on one machine because of a version mismatch stops being a routine problem.

Which registry do you use to store images?

We set up the registry that fits your existing cloud provider or infrastructure, whether that is a managed registry from your cloud provider or a self-hosted one, rather than forcing a specific vendor.

Do containers replace the need for Kubernetes?

No. Containerizing an application is the step before orchestration. Once your application runs reliably in containers, Kubernetes or another orchestrator can be layered on to manage scaling and deployment across a cluster.

How long does containerizing an application usually take?

A single application with a straightforward stack typically takes one to three weeks, including writing Dockerfiles, testing image builds, setting up the registry and verifying dev/local parity.

Related

The other services in this section, and related pages from TCB Infotech.

Start Containerizing Your Application

No commitment. See the container plan before you decide.