Got a 3hr interview coming up. Tips/advice appreciated.

I got through the recruiter screening, a meeting with their main DevOps guy and CTO. I got notified that I'll be moving forward to the next round which is a 3 hour interview with other members of the team. I doubt it's going to be 3 straight hours and it'll probably be more like 3 1 hour blocks.

Anyways,
Any tips, advice, or suggestions? The interviews I already did were pretty chill and I think this might be the last round. The company is pretty cool and in a space where I have some expertise which I think gave me a leg up, I really want the job so help me get through the final push. A little background, I got about 10 years of full stack engineering experience and about the last 5ish years I've been exclusively doing DevOps

Oh edit to add: this is all completely remote

https://redd.it/1kffm0m
@r_devops

Best CI/CD tool

I love TeamCity, it looks great, it's easy to setup and it's easy to work with. The issue at hand tho, it is written in Java and requires over of 4GB free RAM which is just insane.

Is there a product that is as easy to deploy via Docker Compose, is as quality of a product and is more optimized?

https://redd.it/1kfi1d7
@r_devops

How do you inspect what actually changed in container images? (My Git-based approach)

Hey everyone,

When working with CI images or debugging build issues, I often need to understand *exactly* what changed in a container layer - not just which files were added or removed, but what was inside them.

[**Dive**](https://github.com/wagoodman/dive) is a great tool for exploring layers, but it mainly shows file names and status changes - not full file diffs. I wanted something more powerful and familiar.

So I built [**oci2git**](https://github.com/Virviil/oci2git), a tool that converts any OCI-compatible container image into a Git repo. Each image layer becomes a commit.

With it, you can:

* Run `git diff` between layers and see actual content changes, even better - use VSCode for ex, or [**lazygit**](https://github.com/jesseduffield/lazygit)
* Use `git blame` to find which layer added or modified a file
* Explore the entire filesystem history with regular Git commands

It’s been helpful for auditing, debugging, and understanding image composition more deeply. Would love feedback, and I’m curious how others inspect images: Dive? manual tarballing? something else?

https://redd.it/1kfkb6c
@r_devops

Personal Blog and Portfolio: Feedback?!

I have posted many blog articles on GitHub and other sites before and decided I want to have a personal homepage where they are all to find. I want to use this website as my portfolio as well.

It's fully open source if anyone is interested:

Repo: https://github.com/LukasNiessen/personal-website

Website: https://lukasniessen.com

Any feedback or thoughts are highly welcome :-)

https://redd.it/1kfmav7
@r_devops

Grafana Dashboard + Metrics For MCP Servers

I put together a Grafana Dashboard and metrics implementation for MCP servers. I thought some of you, might find it helpful. full post and code source here

https://redd.it/1kfnh0t
@r_devops

Any advice for fake it till you make it with AWS specifically?

Need some input on how to appear to know what I'm doing with AWS lol

https://redd.it/1kfrc3t
@r_devops

Snyk/Bitbucket?

Anyone here have practical experience using the Snyk integration on Bitbucket? We're pursuing SOC 2 compliance and one of the checks requires CVE scanning of code during CI/CD.

Other major CI/CD platforms offer free scanning like Dependabot, but sadly, we are on Bitbucket (constant irritation/constant disappointment), so we're looking at our options. They offer a Snyk integration, which (at our scale) will require a non-free Snyk plan.

Anyone gone through this? Happy to entertain alternatives, but we are likely to stay on BB because our company is all-in on Atlassian.

https://redd.it/1kftph6
@r_devops

Got ghosted after 3rd round

Hey everyone,

Just wanted to share my recent experience and see if others are going through the same thing.

I’ve been applying for DevOps roles for the past few months, and finally landed an interview. It started with a quick HR screen, followed by a technical round, which went well and I was immediately moved to the next stage.

The third round was a DevOps challenge, which I completed over my weekend. I presented it, answered all their technical questions, and felt the interview went smoothly.

I followed up with HR the next day — no response. I waited a week and followed up again — still nothing. Then I sent a message on LinkedIn just in case, and even followed up with the second HR contact mentioned in the original email — still complete silence.

At this point, I’m feeling pretty frustrated. It’s disappointing to invest so much time and effort, only to be met with no closure. Is this kind of ghosting becoming normal now?

Would appreciate hearing if others have gone through something similar, or any advice on how to deal with it.

https://redd.it/1kfuk0z
@r_devops

Anyone facing issue with Cloudflare recently of suddenly not honoring "Access-Control-Allow-Headers" set by origin?

Is anyone facing this recent issue lately where all the sudden, you're getting thrown Access-Control-Allow-Headers error across all proxied domains. Cloudflare proxy, out-of-the-blue, decided not to honor the Access-Control-Allow-Headers set by origin, and decided to block most headers, including "Authorization". This caused temporary downtime across all our services, totally unacceptable.

We had to remove proxy across multiple of our domains temporary and we can't find any changelogs, issues, etc. regarding any changes or reported issues to Cloudflare proxy anywhere (which is strange).

https://redd.it/1kfue56
@r_devops

Stategies for scaling out MySQL/MariaDB when database gets too large for a single host?

What are your preferred strategies when a MySQL/MariaDB database server grows to have too much traffic for a single host to handle, i.e. scaling CPU/RAM or using regular replication is not an option anymore? Do you deploy ProxySQL to start splitting the traffic according to some rule to two different hosts?

Has anyone migrated to TiDB? In that case, what was the strategy to detect if the SQL your app uses is fully compatible with TiDB?

https://redd.it/1kfwpne
@r_devops

LogWhisperer – AI-powered log summarizer that runs locally (no OpenAI keys, no cloud)

I built an open-source CLI tool called LogWhisperer that uses a local LLM to summarize Linux system logs into human-readable summaries. It’s useful for triaging noisy logs, quick postmortems, or just getting a sense of what the hell happened without manually parsing journalctl.

Key features:

Uses a local model (via [Ollama](https://ollama.com)) — supports `mistral`, `phi`, etc.
Parses logs from journalctl or file paths (e.g. /var/log/syslog)
CLI-friendly with flags for source, priority, model, entries
Outputs markdown reports for easy archiving
Includes a spinner so it doesn't feel frozen when summarizing large logs
100% offline (after install) — no OpenAI keys or cloud dependencies

Use case: you're SSH'd into a flaky VM, and you just want a summary of the last 500 err\-level logs without sifting through pages of noise.

Install it with a one-liner shell script — it sets up the Python env, installs Ollama, and pulls the model.

GitHub: https://github.com/binary-knight/logwhisperer

Would love feedback from fellow infra folks. I'm also thinking of extending this into scheduled cron-based summaries, Slack alerts, and anomaly tagging if anyone’s interested in contributing or ideas.

https://redd.it/1kfyv61
@r_devops

What really makes an Internal Developer Platform succeed?

Hey, I work at Pulumi as a community engineer and as we are doubling down on IDP features I’ve been looking around at various other platform tools and it's hard for me to tell which features are great for demos and which are really the important pieces of an ongoing platform effort.

so, in your experience what features are essential for a real world internal developer platform? and how are you handling infrastructure lifecycle management or how would you like to be handling it? I’m more interested in the day-2-and-beyond messy bits of a platform approach but if you are successfully using a 1-click to provision portals I'd love to hear about that as well.

https://redd.it/1kg3gj4
@r_devops

Was pushed into a Devops role. Never got the chance to learn properly

I was pushed into a devops role. And since then there was always a deadline on head and was never able to learn things properly. I am still good at my job and can do what is required but somewhere feel like I don't know stuff in depth. Or some not trivial things like Istio or monitoring tools or something else.

Want to change that. But because devops is so fast, don't have the slightest clue where to begin or how to start. Should I follow some roadmaps? Or implement things? If yes what?



https://redd.it/1kg53p9
@r_devops

Junior sysadmin looking for project ideas to modernize a simple infra

Junior sysadmin looking for project ideas to modernize a simple on-prem infra

Hey everyone,

I’m a junior sysadmin working with a fairly basic on-prem infrastructure with about 45 users, and I’m looking for ideas to improve, automate, and modernize it, ideally to make it more secure, more efficient, and a bit more DevOps-friendly.
The current setup is kind of “freestyle”: backups aren’t really solid yet, and a lot of things could be more structured

Here’s the current setup:
• 5 Ubuntu servers on-prem, used by data scientists to run AI/GPU workloads and experiments.
• Users currently have sudo access, which isn’t very secure - I’m looking for ways to improve that.
• 1 Proxmox server, where I run personal/admin VMs for Docker apps (Grafana, Prometheus, etc.).
• I occasionally spin up temporary VMs for test environments (no GPU) and give users access.
• Using Snipe-IT for asset management and Intune for endpoints.

Some project ideas I’m considering:
• Securing user access more effectively (e.g. removing full sudo, implementing access control or centralized auth).
• Setting up a Proxmox cluster for better flexibility and redundancy — not sure how well that works with GPU passthrough yet.
• Building a web portal where users can request or deploy their own VMs (via Proxmox API) and get direct access (ansible+terraform?).
• Improving asset and VM lifecycle management, to track what’s running, who owns it, and clean up unused resources automatically.

If you’ve done similar projects or have any ideas especially around automation, user access control, or Proxmox + GPU setups, I’d love to hear your thoughts!

https://redd.it/1kg8puy
@r_devops

What Platform Engineering Really Means (and How It Differs from DevOps and SRE)

Hey all,
I just wrote a piece breaking down what Platform Engineering is — not just as a buzzword, but as a real discipline that’s emerging in many engineering organizations.

🔧 Key takeaways:

Platform Engineering is not just “DevOps rebranded.” It's about productizing the platform for developers — treating the internal developer platform (IDP) like a real product.
It focuses on golden paths, developer self-service, and abstracting complex infra behind sensible defaults.
It complements SRE by focusing on enablement, not just reliability.
The role is deeply cross-functional — blending infrastructure, developer experience, automation, and even elements of UX.

I also share real-world examples and tools/platforms that embody these ideas (e.g., Backstage, Kratix, Humanitec, etc.).

If you're navigating the gray area between DevOps, SRE, and Platform roles — or building an internal platform yourself — I’d love your thoughts.

👉 Full post here

Would love to hear:

How do you define platform engineering in your org?
What tooling or practices have helped you build your IDP?

https://redd.it/1kg7q10
@r_devops

Services which don't quite mesh with devops

Hey folks,

Do you have stories about teams or products which don't quite fit into devops? - for any reason.
How did your org or you approached these?

-

At my current org (midsized insurance enterprise) there are many teams with valid "buts" why devops as a culture and bag of methods/technologies is not or at least not fully applicable. While I always will argue that devops can be at least partially be useful for them, or that it is only about changing the teams processes or boundaries.. there are some external factors which can dampen acceptance.

for example:

- product releases/deployment is tied to a quarterly rythm cause of accounting rules / deployment frequency is flat. It could be grown with feature flags and decoupling of release and deployment, but the mindset of "why bother, we only need to deploy it every quarter" is strong

- onpremise infrastructure services / these are in various states, in-between "send me an jira ticket for your postgres" and "here is the self service/endpoint". In some of these, the day to day includes very little development. Base onprem infra teams are currently not in the nearest thing we have to a "platform team/product"

My first impuls tells me these or others similar to these are just valid and have to be looked at on a case by case basis or need an org restructure to see if and what of devops fits.

Would love to hear your thoughts on this.
Cheers

https://redd.it/1kgd7iq
@r_devops

What does Fastly need to do to be more enticing to developers?

I've seen a lot of people praise fastly for having great tech, but Cloudflare is much more popular.

What makes Cloudflare so much better than Fastly, and what can Fastly do to be better?

https://redd.it/1kgdc9l
@r_devops

Backstage feels like a fools errand

The employee I replaced was promoting backstage and now its all my company wants to talk about.

Recently I looked up the custom runner he had to develop in react to get templates to run bash scripts, and now script updates requires a full upgrade of backstage.

I've also decided that I'd like to add some bash one-liners to my templates, but of course there's no runner for that so I can develop my own or find a 3rd party (not approved by the security team, so it wont ever see the light of day, however)

Context aside, why are so many people advocating for making a react app handle all of my infra provisioning?

https://redd.it/1kgfqys
@r_devops

Is there sometimes no hope?

Good afternoon, DevOps people of Reddit. I want to know if anyone else is feeling this. I have been brought on a project to help this company achieve DevOps practices. My main issue is that I am getting pushback on all my suggestions. I am looking at how things are done and thinking to myself that to even begin to achieve anything, everything would need to be changed. So my question to everyone is, as the way I am seeing it, this place will never achieve anything close to a DevOps mindset, is there any point in trying to do so? I just give up and roll with the insanity that is sanity, and look for a new role.

https://redd.it/1kgguq6
@r_devops

docker_pull.py: Script to pull lots of container images in parallel

[https://github.com/joshzcold/docker\_pull](https://github.com/joshzcold/docker_pull)

Not sure who needs this, but I wrote as part of my work and this task seems to be lacking from the docker cli or equivilient.

Pulls lots of images in parallel using python multiprocessing and the docker engine api

Requirement is that you supply the full image like \`docker.io/nginx:latest\` instead of \`nginx:latest\`

At work we use this to consistently update a series of images from our private registry.

Supports auth through plaintext in \~/.docker/config.json or through the \`secretservice\` credential helper from [https://github.com/docker/docker-credential-helpers](https://github.com/docker/docker-credential-helpers)

[https://github.com/user-attachments/assets/98832e30-0a05-4789-b055-a825cbba1ba5](https://github.com/user-attachments/assets/98832e30-0a05-4789-b055-a825cbba1ba5)




https://redd.it/1kghgi7
@r_devops

How Liquibase Simplifies Schema Management

If you've ever deployed schema changes manually, you know the pain: tracking SQL scripts, guessing what's applied where, and praying nothing breaks in prod.

I recently wrote a post on how **Liquibase** helps database admins and DevOps teams version-control and automate PostgreSQL migrations—like Git for your database schema.

It covers:

* Why traditional schema management breaks at scale
* How Liquibase tracks, applies, and rolls back changes safely
* Real YAML examples for PostgreSQL
* CI/CD automation tips
* Rollback strategies and changelog best practices

Check it out here 👉 [https://blog.sonichigo.com/how-liquibase-makes-life-easy-for-db-admins](https://blog.sonichigo.com/how-liquibase-makes-life-easy-for-db-admins)

Would love feedback from folks using other tools too—Flyway, Alembic, etc.

https://redd.it/1kgpm70
@r_devops