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Using Docker and a Private Registry with VPN On Windows

Wasn’t that a very specific title? Docker has a very good documentation and reading that alone is enough for most of the straightforward tasks we might want to do. But as always some practical tasks are not straightforward, hence this blog. What we are going to see here today is how to setup docker toolbox on a Windows machine, make it work even when VPN is connected, make it talk to a private, insecure docker registry (that is why VPN) and configure it so it can run docker compose and see how we can set this config as a one-time activity. That’s quite a mouthful, but yes this is what we are going to do. All ready? Let us begin then.

Install Docker ToolboxGo and download the docker toolbox and install it. That should create a shortcut called “Docker Quickstart Terminal”. Run it. That should show you an error about virtualization.

Enable VirtualizationRestart your machine, enter the BIOS settings and enable virtualization. It may be under advanced settings. On this Laptop, it is under th…

Yet another packager for node

Yet another packager for node There are so many packaging systems for node already, or maybe not as many, so here I am presenting another way to package your applications into an self extracting executable that has no dependencies. Ah well, a few dependencies, like the processor architecture, and Linux operating system may be, but that is all. What is it? It is a modified shell script originally used to create self-extracting and installing applications for Linux platforms. What it does is, it creates a tarball which includes your code, the modules it depends on, the specific node binary it uses, and appends it to a script with the command to execute your code. It is essentially a binary merge of the files, the shell script and the tar.This is not something new, people have used such a system in the past to deliver applications for Linux, every time you see an obscenely large ‘.sh’ file (for being that, a shell file) that can install or execute an application without requiring any ot…

Redis Cluster: Fact Sheet (Not Just Issues)

Redis and the Redis clustering works very differently from the other data stores and data store clusters. The differences are not always as obvious and may come up as realizations down the line while using Redis, like what happened in our case. We are using a Redis cluster, with which, fortunately, we have not faced many issues so far. But that does not mean we will not and we shall need to be prepared.
Recently we were working on getting a Redis cluster up and working with docker compose and was enlightened to some of the differences which later led to disillusionment for me. Thought that there should be a ‘document of facts‘ on Redis and Redis cluster which people/myself can refer to. So I decided to create one, enjoy:
Redis is great as a single server. In a Redis cluster, all your masters behave as if they are simultaneously active (not sure if they all are masters at the same time technically, but they behave as such). Every master in a cluster knows every other master/node in the clu…