Nkwocha Chinedu

I help indie authors transform their manuscripts into print-ready books. KDP | Print & eBook Formatting. Pivoting to DevOps and sharing my journey daily.

[Nkwocha Chinedu @Chinadizi]

Over ten years ago, I was running Linux on my personal PC, editing boot menu entries, hopping distros. I even had Android x86 running for fun on my PC.

I was that tech guy.

Then life pulled me sideways.

[Nkwocha Chinedu @Chinadizi]

Use .dockerignore to exclude files and folders

Make use of multi-stage builds

Use the least privileged user

Scan your images for vulnerabilities

[Nkwocha Chinedu @Chinadizi]

So far, I've learnt these best practices for using Docker

Use official docker images as base image

Use specific image versions

Use small-sized official images

Optimise caching image layers

[Nkwocha Chinedu @Chinadizi]

Finally got hands-on with Docker after three days of theory. Today was all about breaking and fixing things.

Containerised the funded startup finder app on a GCP Ubuntu VM. Wrote a multi-stage Dockerfile so the final image only carries what it needs to run.

[Nkwocha Chinedu @Chinadizi]

@GreatnessDZN Yes. 80% of all my work as a freelancer have been from cold DMs I sent.

Although I left freelancing for a while, I'm coming back and I've resumed sending cold DMs. The only other option will be running ads.

[Nkwocha Chinedu @Chinadizi]

Can't lie, it was a scrappy first hands-on Docker session today, but I learnt a lot. The plan is to tear everything down and start fresh, right from pulling the project from GitHub.

[Nkwocha Chinedu @Chinadizi]

Finally got hands-on with Docker after three days of theory. Today was all about breaking and fixing things.

Containerised the funded startup finder app on a GCP Ubuntu VM. Wrote a multi-stage Dockerfile so the final image only carries what it needs to run.

[Nkwocha Chinedu @Chinadizi]

Today was another heavy theory day on Docker, and I covered a lot of ground.

Learnt how to create custom Dockerfiles, the file structure and best practices for optimising image layers.

[Nkwocha Chinedu @Chinadizi]

The project is live over HTTP (for a short time) on the VM's public IP, as I shared in my earlier post. HTTPS isn't set up yet, and I haven't pushed to Docker Hub either. Wanted to prioritise getting it live first.

[Nkwocha Chinedu @Chinadizi]

Containerised

http://35.184.118.200:3000/

Please don't use HTTPS 😂😂

[Nkwocha Chinedu @Chinadizi]

I'm about to containerise a web app I vibe coded that finds recently funded startups for my cold outreach.

It's my first time on Docker. Wish me luck.

[Nkwocha Chinedu @Chinadizi]

I'm about to containerise a web app I vibe coded that finds recently funded startups for my cold outreach.

It's my first time on Docker. Wish me luck.

[Nkwocha Chinedu @Chinadizi]

Wrapped up with Docker Compose, including file structure, commands and how to write a Compose file for running multiple containers together.

That’s enough theory for me. My next session will be fully hands-on. It’s time to practise all I’ve learnt in the past three days.

[Nkwocha Chinedu @Chinadizi]

Today was another heavy theory day on Docker, and I covered a lot of ground.

Learnt how to create custom Dockerfiles, the file structure and best practices for optimising image layers.

[Nkwocha Chinedu @Chinadizi]

Finally started Docker. Over three weeks behind schedule, but here we are.

Spent the past two days on the fundamentals: what containerisation is, what containers are and how they differ from virtual machines.

[Nkwocha Chinedu @Chinadizi]

Also covered data persistence with named volumes and bind mounting. When a container stops, any data inside it is gone by default. Named volumes and bind mounting are the two ways to keep data alive beyond a container's lifecycle.

[Nkwocha Chinedu @Chinadizi]

I haven’t gotten hands-on yet. I want to make sure I understand the concepts properly before jumping into the terminal. Looking forward to getting into the practical side ASAP.

[Nkwocha Chinedu @Chinadizi]

Finally started Docker. Over three weeks behind schedule, but here we are.

Spent the past two days on the fundamentals: what containerisation is, what containers are and how they differ from virtual machines.

[Nkwocha Chinedu @Chinadizi]

My DevOps journey Day 28 recap.

Been inconsistent lately due to a book formatting & cover design project I've been working on. But yesterday was a good one.

[Nkwocha Chinedu @Chinadizi]

I also went through basic Docker commands, how to set up Docker on a Linux machine on AWS, using Docker Compose to run multiple containers, building Docker images and working with Dockerfiles.