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  • How to push Docker Images to AWS ECR(Elastic Container registry)?

    calendar Aug 2, 2022 · 11 min read  ·
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    How to push Docker Images to AWS ECR(Elastic Container registry)?

    Docker is all about containerizing your applications. For a developer, running containers locally through docker can be a bit overwhelming as there are multiple dimensions involved, such as ensuring that containers can communicate over a network, provisioning persistent storage, pushing, pulling, and copying images …


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  • How to Copy Docker images from one host to another host?

    calendar Jul 27, 2022 · 6 min read  ·
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    How to Copy Docker images from one host to another host?

    Docker uses prebuilt images to run containers. If there's a need to run a particular container on multiple hosts, we first need to ensure that the required container image is present on all hosts. The container images can vary in size and their actual size depends upon the type of packages present in the container. If …


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  • What is persistent storage in docker and how to manage it

    calendar Jun 27, 2022 · 10 min read  ·
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    What is persistent storage in docker and how to manage it

    When working with containers, one major point of concern is the persistent storage of data. Container storage is ephemeral, meaning that the data written by the containerized application is not preserved if the container is removed. Containerized applications work on the assumption that they always start with empty …


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  • Docker Installation on MacOS, Linux and Windows

    calendar Jun 21, 2022 · 10 min read  ·
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    Docker Installation on MacOS, Linux and Windows

    This is blog series on Docker we will start with Docker installation on all the Machines . i.e. macOS, Linux and Windows. Also along with the installation, we will focus on all the possible issues which you can encounter during the pre-installation as well as post-installation. Table of Content Installation of Docker …


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  • Docker - ADD, Update, Export Environment variable

    calendar Jan 7, 2022 · 6 min read  ·
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    Docker - ADD, Update, Export Environment variable

    When writing a Dockerfile or docker-compose.yml you often need to rely on the ENVIRONMENT variable and there could be many reasons behind it, for example - If your container is using Python then you might wanna rely on the Python version which is set into the host machine's environment variable. another use case could …


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  • How to fix-Docker docker failed to compute cache key not found

    calendar Dec 20, 2021 · 2 min read  ·
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    How to fix-Docker docker failed to compute cache key not found

    The Docker failed to compute cache key error is result of docker buildcommand which is executed on a directory where the Dockefile is not present. I had this issue when I was working with one of my project on my windows laptop and my directory structure looked like this - 1\parent-directory 2- test-file-1.py 3- …


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  • How to fix docker driver failed programming external connectivity on endpoint webserver?

    calendar Dec 9, 2021 · 3 min read  ·
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    How to fix docker driver failed programming external connectivity on endpoint webserver?

    This blog post will address how to fix the docker issue EADDRINUSE (PORT or ADDRESS already in use). Here is a little error snapshot which I have taken from my docker container which I was aiming to run on port 1313 but unfortunately the port is already occupied by some other process. 1docker: Error response from …


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  • How to fix docker error executable file not found in $PATH?

    calendar Nov 25, 2021 · 3 min read  ·
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    How to fix docker error executable file not found in $PATH?

    You might have encountered the error executable file not found in $PATH when you are trying to run your docker container. There could be many reasons for an error like this. But in simple words, the docker can not find the binary which you want to run inside the docker container. Let's take some examples to identify …


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  • How to expose port on live containers?

    calendar Sep 21, 2021 · 5 min read  ·
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    How to expose port on live containers?

    As DevOps, we often make quite a lot of mistakes and one of the most oversight mistakes we generally do is forget to expose a port for the container. When you realize that you have not exposed any port for the container then you start looking for ways to change the port mapping of a live container or in other words, we …


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  • How to expose multiple ports with Docker?

    calendar Sep 16, 2021 · 7 min read  ·
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    How to expose multiple ports with Docker?

    When we package any application using Docker then either we create Dockerfile or docker-compose.yaml, even you can create both the files and share the files with others. There is one important aspect in both the files .i.e. PORT. Any container which you build and ship to other developers has to have one or more defined …


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Rahul Wagh

Its all about Open Source and DevOps, here I talk about Kubernetes, Docker, Java, Spring boot and practices.
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