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Tag Archives: Docker

Building a Remote Caching System: The Sequel

Last fall, Docker made some big changes that required us to overhaul how our Codeship Pro image caching system worked. Our director of engineering, Laura Frank, published a blog post explaining everything back when we launched this new system. The gist of this was that Docker no longer allowed images pulled from a remote source to be used as a ...

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Docker Commands for Development to Deployment

The objective of this article to understand the end to end flow of container development to deployment in target environment and list down the docker commands needed for every action. 1 Introduction The overall process consists of  i) develop a container image with your code, dependent software and configurations, ii) run and test the container in development environment, iii) publish the container image ...

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Docker: Building custom Neo4j images on Mac OS X

I sometimes needs to create custom Neo4j Docker images to try things out and wanted to share my work flow, mostly for future Mark but also in case it’s useful to someone else. There’s already a docker-neo4j repository so we’ll just tweak the files in there to achieve what we want. $ git clone [email protected]:neo4j/docker-neo4j.git $ cd docker-neo4j If we ...

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Using Docker Push to Publish Images to Docker Hub

In previous articles, we explored building and running Docker containers locally using custom Dockerfiles. What we don’t explore very often is one of the most useful features of Docker and arguably the feature that has led to Docker’s success: The ability to build a Docker image and upload that image to a Docker repository. The reason I say this has ...

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A Developer’s Guide To Docker – A Gentle Introduction

Check out the Okta user management API and never build auth again! Get started in minutes with a free developer account. Register Today! It works on my machine. We’ve all heard it. Most of us have said it. It’s been impossible to get around it… until now. Not only can adding Docker to your development environment solve that issue, but it ...

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Understanding Docker’s CMD and ENTRYPOINT Instructions

When creating a Docker container, the goal is generally that anyone could simply execute docker run <containername> and launch the container. In today’s article, we are going to explore two key Dockerfile instructions that enable us to do just that. Let’s explore the differences between the CMD and ENTRYPOINT instructions. On the surface, the CMD and ENTRYPOINT instructions look like ...

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Where Is the Deployment Space Heading?

With all the time I’ve spent of late assessing different deployment options, it seemed pertinent to stop for a moment and see where the deployment space is heading over the next couple of years. However, like any form of crystal ball-gazing, what we see happening in the future is only a prediction about what we think may come — even ...

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Leveraging the dockerignore File to Create Smaller Images

Keeping container image sizes small is one of the most common “best practice” tips out there. There is good reason for this; it’s very simple to let a container with a complex Dockerfile and a large application turn into a large container image. A large container image can eventually become troublesome if left unchecked. When deploying a container into production, ...

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Using Docker Compose for NodeJS Development

Docker is an amazing tool for developers. It allows us to build and replicate images on any host, removing the inconsistencies of dev environments and reducing onboarding timelines considerably. To provide an example of how you might move to containerized development, I built a simple todo API using NodeJS, Express, and PostgreSQL using Docker Compose for development, testing, and eventually ...

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