Tag Archives: Docker

This is going to be a small post since it has to deal with kubernetes and secrets. Yet it is a very useful once since adding secrets is so common yet so easy to forget (guilty as charged). So we will cover username and password, key/values, file uploading, secrets. Upload username and password using command line. kubectl create secret generic ...

I managed to resolve the issue but not by uninstalling Hyper-V. I saw a couple of suggestions but I find this one suitable (it makes sense since I’m not an IT guru): STEP 1: Open the command prompt as an Administrator. STEP 2: Run the command with no argument: bcdedit After you run the above command, you will see that ...

One of the basic problems with running a docker image is that its too easy to spew up multiple instances or containers of the same image. Consider running the following container for instance: docker run -it -e AWS_ACCESS_KEY_ID="test" -e AWS_SECRET_ACCESS_KEY="test" \ --net=host "prahladyeri/testimage:latest" /bin/bash This will start a fresh container instance from image prahladyeri/testimage:latest and you may optionally pass environment ...

Its has become an oft-repeated cliche now that docker has become the latest buzzword, both in DevOps circles as well as the open source community. But being the ever cynic and contrarian, I wasn’t quite convinced of its merits until quite recently, I thought it was just another hype that will come and go like all other things. After all, ...

It happens because the docker client (on macOS or Windos 10) allows you to sign in with your email address and password. If you sign out and sign in with your Docker Username and password everything will work. So here’s a better description of the issue Description When trying to pull images from the Docker registry docker: Error response from daemon: ...

By nature, Docker containers are temporary. Yet as anyone who runs containers via Cron can tell you, it’s not always so great at cleaning up after itself. In today’s article, we are going to explore two flags that make it easier to run Dockerized Cron jobs. Before we get too far into this article, let’s explore how we would traditionally ...

Docker Compose is a great utility for anyone developing Dockerized applications. It’s a tool that I personally use daily. Recently I came across yet another powerful feature of Docker Compose: the ability to change Linux Kernel Parameters. In today’s article, we will explore how to use this often overlooked but “useful when you need it” feature of Docker Compose. To ...

In the past, I had tried to set up Docker during a few different programming competitions without ever having used it before. During the crunch time, I was unsuccessful in both setting it up and learning how it worked. But in those competitions I had the good fortune that my teammates were all able to configure their environment for the ...

Spawning services across multiple Docker engines is a very cool thing, but those services need to connect each other and be found by public-facing nodes in order to be routed to users. A way to achieve that is to use NGINX as a reverse proxy by defining one or more public-facing nodes. These nodes are going to have NGINX configured ...