Today we will use Docker Secrets, more specifically store our MySQL Passwords in Secrets, which will be passed to our containers, so that we don't use clear text passwords in our Compose files. What is Docker Secrets: In Docker, Docker…
Docker
A collection of 23 posts
Populate Environment Variables from Docker Secrets with a Flask Demo App
In this post we will create a basic Python Flask WebApp on Docker Swarm, but we will read our Flask Host, and Flask Port from Environment Variables, which will be populated from Docker Secrets, which we will read in from…
Forwarding The Docker Socket via a SSH Tunnel to Execute Docker Commands Locally
With automation in mind, when you want to execute docker commands remotely, you want to do it in a secure manner, as you don't want to expose your Docker port to the whole world. One way in doing that, is…
Docker Environment Substitution with Dockerfile
The 12 Factor way, is a general guideline that provides best practices when building applications. One of them is using environment variables to store application configuration. What will we be doing: In this post we will build a simple docker…
Guide to Setup Ranchers Convoy Volume Driver for Docker Swarm with NFS
In this post we will setup Rancher's Convoy Storage Plugin with NFS, to provide data persistence in Docker Swarm. The Overview: This essentially means that we will have a NFS Volume, when the service gets created on Docker Swarm, the…
Create a Docker Persistent MySQL Service backed by NFS
Docker Containers are stateless, if you want a persistent service like MySQL I always recommend having your database services outside the swarm, but if you need to look at Persistent Storage, there's a lot, including GlusterFS and NFS. Using Docker…
Docker Stacks - Creating a Nodejs Hostname Application on Swarm
Create a Nodejs Application that responds GET requests with its Hostname. We will be using Docker Swarm to create a Stack of our Nodejs application, which will sit beind a HAProxy Load Balancer, we are mounting the docker.sock from…
Create a Elasticsearch Cluster on Docker Swarm with Alpine
I personally believe that databases should reside outside your swarm, but for testing we will create a Elasticsearch Container from a Alpine Image to keep the size of our image small, which is also great for a testing environment. The…