Posts about Docker

Docker

Posts about Docker and containers

A golf cart drives off into an IPv6 banner

Building an IPv6-only Caddy Docker stack for easy HTTPS with Ghost V5

AWS have announced they will begin charging for public IPv4 addresses from 1st May 2024. Lightsail 1GB images will go from $5 to $7 if they have a public IPv4 address. I am thus motivated to migrate my ageing Ubuntu 18.04 AWS Lightsail VPS' (including this very site)

Migrating from wordpress.com to Ghost

Migrating from wordpress.com to Ghost

As part of a big cleanup of my web sites, I am moving a wordpress.com site into my default Ghost Docker stack. It's a flying blog, with a few hundred MB of images.

Building a Caddy container stack for easy HTTPS with Docker and Ghost

Building a Caddy container stack for easy HTTPS with Docker and Ghost

I'm building a Caddy-stack to serve up HTTPS sessions, with a Ghost back end, using Docker containers, orchestrated with Docker Compose. You'll easily be able to replace the Ghost back end with other container-based apps such as Nginx or Wordpress. Updated January 2022.

Get ready for heavy traffic: Adding a Varnish cache to a production Docker stack

Get ready for heavy traffic: Adding a Varnish cache to a production Docker stack

All bloggers dream of the day that their site has an article that goes viral, reaching the front page of Reddit, a viral Tweet, or FB share. I've had it happen, and believe me it's an awful, awful feeling when your small VPS crashes, while 30 hits a second bounce off into oblivion.

Matomo + Apache killed my server. Then Matomo + Nginx killed my server.

Matomo + Apache killed my server. Then Matomo + Nginx killed my server.

When accessing the Matomo console, the VPS memory usage spikes, and kills the server. I suspect Apache is the memory hog.

Scheduling a Docker Compose image auto-update in linux

Scheduling a Docker Compose image auto-update in linux

My objective is to have a small script run daily which pulls any new Docker image versions and runs a docker-compose update, capturing the output to a log. The environment is Ubuntu 18.04.

Reducing memory use on my MariaDB/Mysql Wordpress docker stack

Reducing memory use on my MariaDB/Mysql Wordpress docker stack

I found that after migrating in from a locally installed Wordpress duo on a 2GB VPS, my new instance started crashing once a day, due to running out of memory.

Docker logging to the local OS that works, with compose and rsyslog

Docker logging to the local OS that works, with compose and rsyslog

My objective is to get logging output from my container applications consolidated under /var/log, with logfile names matching their origin container. Logfile cohabitation will allow me to incorporate them in the housekeeping rotation ritual of the rest of my system,

This time it's Multisite - Migrating locally installed Wordpress to a Traefik Dockerised stack

This time it's Multisite - Migrating locally installed Wordpress to a Traefik Dockerised stack

I still have a locally installed Wordpress Multisite instance on my old server, and I will need to migrate it to a docker stack too, before I can decommission.

Migrating a Wordpress local install to a Traefik Dockerised stack

Migrating a Wordpress local install to a Traefik Dockerised stack

I have two legacy Wordpress sites on a VPS with 2GB memory. I'd like to move them to an upgraded Ubuntu keeping Nginx, and at the same time - Dockerise!

Building a twin Wordpress stack with Traefik, Nginx and Docker

Building a twin Wordpress stack with Traefik, Nginx and Docker

I am going to build a dual Wordpress stack with Traefik, Nginx, PHP-fpm, and MariaDB in Docker, using Docker-compose. I plan to eventually migrate into this from an older server I have with locally installed Wordpress.

A move to truly private web analytics - self hosting Matomo with Docker, Traefik and MariaDB

A move to truly private web analytics - self hosting Matomo with Docker, Traefik and MariaDB

Moving away from Google Analytics has been on my to-do list for quite a long time. As we all know, if you are not paying for the product, you are the product. In the case of GA it's worse, everyone that visits your web site becomes the product as well, whether they like it or not.

Building a self-hosted Commento system for embedding comments with Docker and Traefik

Building a self-hosted Commento system for embedding comments with Docker and Traefik

As part of my mission to build a lean and fast blog with privacy features, I have settled on Commento for my embedded comment system, and need to get it installed and embedded in this blog.

Filling up a 1GB server with a stack of Ghost blogs

Filling up a 1GB server with a stack of Ghost blogs

I have a kind of rudimentary "Ghost multisite" in the form of a Docker stack, so just how many Ghost blogs can I stuff into a single 1GB virtual server?

Comparing blog comment systems with privacy features

Getting Started

Comparing blog comment systems with privacy features

I am looking for an embedded comment system heavy on privacy features, light and fast, that I can self host in Docker. Time to get installing!

Building Ghost in a docker container with Ubuntu, Traefik, and SQLite

Building Ghost in a docker container with Ubuntu, Traefik, and SQLite

My early experiments with installing Ghost presented a curio: it's so light, how do I install without eating a whole VPS server. Or even make use of this one server for more than one Ghost blog, effectively a Ghost multisite.