Rootless container management with docker-compose and podman

Everyone has an opinion for the best way to manage containers, and there are many contenders depending on how much complexity you can handle and how much automation you require. One of my favorite ways to manage containers is docker-compose. Overview of docker-compose docker-compose uses a simple YAML syntax to explain what your desired end state should look like. The compose specification covers all of the relevant configurations for containers, volumes, networks, and more....

2021-07-09 路 4 min 路 Major Hayden

A new future for icanhazip

In the summer of 2009, I had an idea. My workdays were spent deploying tons of cloud infrastructure as Rackspace acquired Slicehost and we rushed to keep up with the constant demands for new infrastructure from our customers. Working quickly led to challenges with hardware and networking. That was a time where the I Can Has Cheeseburger meme was red hot just about everywhere. We needed a way to quickly check the public-facing IP address of lots of backend infrastructure and our customers sometimes needed that information, too....

2021-06-06 路 7 min 路 Major Hayden

Efficient emojis with rofimoji

Emojis brighten up any message or document. They also serve as excellent methods for testing whether your application handles strings appropriately. (This can be a lot of fun.) 馃き I constantly obsess with efficiency and shortening the time and effort required to get my work done. I noticed that I could type short text emoticons like :) and ;) so much faster than I could use emojis. This simply would not do....

2021-05-15 路 2 min 路 Major Hayden

Free resources for the stock market

Every new trader in the stock market must wade through a myriad of tools, platforms, and websites that claim to have the best stock market research around. Some are free, some are not, and some cost so much that they eat into plenty of your profits. This post rounds up all of the best research options out there that you can have for free (or almost free). I鈥檓 sure I missed a few, but these are the ones I rely on most often....

2021-04-22 路 5 min 路 Major Hayden

Selling options made simpler

馃 This is another post in a set of posts on options trading. If you are new to options trading, you may want to start with some of my earlier posts. After writing my original blog post about selling options contracts in the stock market, I received some feedback saying that the post jumped over too many steps and used too much terminology. I went back, re-read the post, and found lots of room for improvement....

2021-03-17 路 6 min 路 Major Hayden

Monitor a UPS with a Raspberry Pi Zero W

After the recent snow apocalypse that swept through Texas followed by widespread power crisis, I realized that my UPS monitoring strategy needed improvement. One had batteries that were near death and my other two had loads that were not well balanced. I have a few CyberPower UPS units and an old APC UPS. Although CyberPower does offer relatively expensive monitoring cards that puts the UPS on the local network, none of them worked with my 1350/1500VA units....

2021-03-15 路 6 min 路 Major Hayden

Defending losing options trades

馃 This is another post in a set of posts on options trading. If you are new to options trading, you may want to start with some of my earlier posts. You did your research. You waited for a good time to sell a put option. You received a decent premium for your option trade. Now your trade has turned into a loss. What can you do now?...

2021-02-10 路 6 min 路 Major Hayden

Which stock broker should you use?

馃 This is another post in a set of posts on options trading. If you are new to options trading, you may want to start with some of my earlier posts. One of my sports coaches in high school used to say: 鈥淚t鈥檚 not the tool, it鈥檚 the fool.鈥 This was his reminder that when something goes wrong in the game, it鈥檚 usually the fault of the person and not the equipment....

2021-01-24 路 10 min 路 Major Hayden

Choosing options to sell

馃 This is another post in a set of posts on options trading. If you are new to options trading, you may want to start with some of my earlier posts. You know your terminology, you know your max loss, and you are ready to start. Now you鈥檙e faced with the difficult question all new options traders face: How do I choose which option to sell? At first, you learn to look for the trades that are right for you....

2021-01-23 路 10 min 路 Major Hayden

Lessons learned from selling puts

馃 This is another post in a set of posts on options trading on the blog. If you are confused on terminology, go back and start with the first post and the series and work your way to this one. My options trading journey started back in September 2020 and I learned a lot in a short amount of time. This post covers some of the lessons I鈥檝e learned along the way....

2021-01-04 路 10 min 路 Major Hayden