Is RHCSA a good choice to start a DevOps career?

Hi everyone,
I’m planning to build my career in DevOps but feeling confused about where to start. I’m thinking about doing the RHCSA (Red Hat Certified System Administrator) certification.
Would RHCSA be a good starting point for DevOps, or should I focus on something else like AWS or CCNA?
I’d really appreciate some advice from professionals already working in DevOps.
Thanks in advance!

https://redd.it/1oadq6n
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Multi-region testing strategy – how do you validate app behavior worldwide?

Our site behaves differently by region (pricing, redirects, language). I’m faking headers now, but I’m sure there’s a better way. How do you guys confirm regional logic actually works?

https://redd.it/1oac84h
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Azure Devops Repo to Visual Studio

Hello,
I work for a bank and we have repo on Azure DevOps. I want to push the changes I made to UAT but before that I need to build the changes on Visual Studio which is not on my local machine but on a VDI. When I am trying to import/connect with my Repo via the Visual Studio on the VDI I am getting a Git Fatal error which says something about SSL Certificate.

Does anybody have any ideas how to resolve this issue. Any help will be appreciated. Thank you!

https://redd.it/1oaat7e
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I’m building an API for a mobile app

I'm working on a new project that requires a backend and I'm planning to host it on AWS. Does anyone know if there are any current AWS credits or promotional programs available that I could apply for?

https://redd.it/1oagq1b
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Anyone preparing for AWS certifications?

Let's connect

https://redd.it/1oahyk4
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How make sense to connect desktop machine from laptop to do practice?

Hi guys. Let's assume I have job where I do nothing for 40 50min and I'm allowed to use tablet. I want to use that time to do some practice in devops but these program are too heavy for a tablet. I am planning to left my laptop open and connect it with my tablet but idk is good idea or not.
My laptop OS will be Ubuntu BTW.


https://redd.it/1oancyv
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How do you maintain observability across automated workflows?

I’ve got automations running through several systems (GitHub Actions, webhooks, 3rd-party SaaS), and tracking failures across all of them is a nightmare. I’m thinking of building some centralized logging or alerting, but curious how others handle it at scale.

https://redd.it/1oas5py
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Gartner Magic Quadrant for Observability 2025

Some interesting movement since last year. Splunk slipping a bit and Grafana Labs shooting up.

Wondering what people think about this?
What opinions do you have in the solutions you use.?
I would really appreciate the opinions of people who are experienced in more the one of the listed solutions?

https://www.gartner.com/doc/reprints?id=1-2LFAL8EW&ct=250710&st=sb

https://redd.it/1oasip4
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Trying to get precise historical resource usage from Railway — why is this so hard?

I’ve been trying to get the exact resource usage (CPU, memory, network, etc.) for a specific Railway project within a specific time range, but I can’t seem to find a proper way to do it.

The API doesn’t give me consistent data, and the dashboard only shows recent stats.
Has anyone here managed to pull accurate historical usage from Railway?

Would really appreciate any pointers or workarounds.

https://redd.it/1oat9ne
@r_devops

VPS + Managing DB Migrations in CI

Hi all, I'm posting a similar question I posed to r/selfhosted, basically looking for advice on how to manage DB migrations via CI. I have this setup:

1. VPS running services (frontend, backend, db) via docker compose (using Dokploy)
2. SSH locked down to only allow access via private VPN (using Tailscale)
3. DB is not exposed to external internet, only accessible to other services within the VPS.

The issue is I cannot determine what the right CI/CD processes should be for checking/applying migrations. Basically, my thought is I need to access prod DB from CI at two points in time: when I have a PR, we need to check to see if any migrations would be needed, and when deploying I should apply migrations as part of that process.

I previously had my DB open to the internet on e.g. port 5432. This worked since I could just access via standard connection string, but I was seeing a lot of invalid access logs, which made me think it was a possible risk/attack surface, so I switched it to be internal only.

After switching DB to no longer be accessible to the internet, I have a new set of issues, which is just accessing and running the DB commands is tricky. It seems my options are:

1. Keep DB port open and just deal with attack attempts. I was not successful configuring UFW to allow Tailscale only for TCP, but if this is possible it's probably a good option.
2. Close DB port, run migration/checks against DB via SSH somehow, but this gets complex. As an example, if I wanted to run a migration for Better Auth, as far as I can tell it can't be run in the prod container on startup, since it requires npx + files that are tree shaken/minified/chunked (migration noscripts, auth.ts file), as part of the standard build/packaging process and no longer present. So if we go this route, it seems like it needs a custom container just for migrations (assuming we spin it up as a separate ephemeral service).

How are other folks managing this? I'm open to any advice or patterns you've found helpful.

https://redd.it/1oavnun
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Building a DevOps homelab and AWS portfolio project. Looking for ideas from people who have done this well



Hey everyone,

I am setting up a DevOps homelab and want to host my own portfolio website on AWS as part of it. The goal is to have something that both shows my skills and helps me learn by doing. I want to treat it like a real production-style setup with CI/CD, infrastructure as code, monitoring, and containerization.

I am trying to think through how to make it more than just a static site. I want it to evolve as I grow, and I want to avoid building something that looks cool but teaches me nothing.

Here are some questions I am exploring and would love input on:

• How do you decide what is the right balance between keeping it simple and adding more components for realism?

• What parts of a DevOps pipeline or environment are worth showing off in a personal project?

• For hands-on learning, is it better to keep everything on AWS or mix in self-hosted systems and a local lab setup?

• How do you keep personal projects maintainable when they get complex?

• What are some underrated setups or tools that taught you real-world lessons when you built your own homelab?

I would really appreciate hearing from people who have gone through this or have lessons to share. My main goal is to make this project a long-term learning environment that also reflects real DevOps thinking.

Thanks in advance.


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

Browser Automation Tools

I’ve been playing around with selenium and puppeteer for a few workloads but they crash way too often and maintaining them is a pain. browserbase has been decent, there’s a new one called steel.dev, and i’ve tried browser-use too but it hasn’t been that performant for me. I'm trying to use it more and more for web testing and deep research, but is there is anything else where it can work well?

Curious what everyone’s using browser automation for these days; scraping, ai agents, qa? What actually makes your setup work well. what tools are you running, what problems have you hit, and what makes one setup better than another in your experience?


Big thanks!

https://redd.it/1ob3xsf
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CI/CD template for FastAPI: CodeQL, Dependabot, GHCR publishing

Focus is the pipeline rather than the framework.

Push triggers tests, lint, CodeQL
Tag triggers Docker build, health check, push to GHCR, and GitHub Release
Dependabot for dependencies and Actions
Optional Postgres and Sentry via secrets without breaking first run

Repo: https://github.com/ArmanShirzad/fastapi-production-template

https://redd.it/1ob387d
@r_devops

Job Market is crazy

The job market is crazy out there right now, I am lucky I currently have one and just browsing. I applied to one position I meet all the requirements to and was sent a rejection email before I received the indeed confirmation it felt like. I understand they cannot look at all resumes, but what are these AIs looking for when all the skills match their requirements?

I wish anyone dealing with real job hunting the best of luck.

https://redd.it/1ob6vej
@r_devops

We developed a web monitoring tool ZomniLens and want your opinion

We've recent built a web monitoring tool [https://zomnilens.com](https://zomnilens.com) to detect websites anomaly. The following features are included in the Standard plan:

* 60s monitoring interval.
* Supports HTTP GET, POST and PUT
* Each client has a beautiful service status page to ensure security and data protection. It can be made public at any time if desired. [demo page](https://dashboard.zomnilens.com/dashboard/snapshot/1pZmr4luQyVrhU1RzcABxiBytNVS8ceq?orgId=0&from=2025-10-07T20:00:21.510Z&to=2025-10-08T01:00:21.510Z&timezone=browser).
* Currently it supports email and SMS alerts. We are working on integrating other alerting channels (Slack, Webex, etc.) and they will be included in the same Standard pricing plan once available.
* Alert will be triggered on downtime, slow response time, to-be-expired SSL certificate and keyword matching failure.

We would like to hear your thoughts on:

* What are the features you think the service is missing and like us to include in future releases.
* What are the other areas the service should improve on.

Feel free to submit a free trial request via [https://zomnilens.com/pricing/](https://zomnilens.com/pricing/) and try it out and let me know if you like it or not for your personal or business needs.

https://redd.it/1ob3lwk
@r_devops

I can’t understand Docker and Kubernetes practically

I am trying to understand Docker and Kubernetes - and I have read about them and watched tutorials. I have a hard time understanding something without being able to relate it to something practical that I encounter in day to day life.

I understand that a docker file is the blueprint to create a docker image, docker images can then be used to create many docker containers, which are replicas of the docker images. Kubernetes could then be used to orchestrate containers - this means that it can scale containers as necessary to meet user demands. Kubernetes creates as many or as little (depending on configuration) pods, which consist of containers as well as kubelet within nodes. Kubernetes load balances and is self-healing - excellent stuff.

WHAT DO YOU USE THIS FOR? I need an actual example. What is in the docker containers???? What apps??? Are applications on my phone just docker containers? What needs to be scaled? Is the google landing page a container? Does Kubernetes need to make a new pod for every 1000 people googling something? Please help me understand, I beg of you. I have read about functionality and design and yet I can’t find an example that makes sense to me.

Edit: First, I want to thank you all for the responses, most are very helpful and I am grateful that you took time to try and explain this to me. I am not trolling, I just have never dealt with containerization before. Folks are asking for more context about what I know and what I don't, so I'll provide a bit more info.

I am a data scientist. I access datasets from data sources either on the cloud or download smaller datasets locally. I've created ETL pipelines, I've created ML models (mainly using tensorflow and pandas, creating customized layer architectures) for internal business units, I understand data lake, warehouse and lakehouse architectures, I have a strong statistical background, and I've had to pick up programming since that's where I am less knowledgeable. I have a strong mathematical foundation and I understand things like Apache Spark, Hadoop, Kafka, LLMs, Neural Networks, etc. I am not very knowledgeable about software development, but I understand some basics that enable my job. I do not create consumer-facing applications. I focus on data transformation, gaining insights from data, creating data visualizations, and creating strategies backed by data for business decisions. I also have a good understanding of data structures and algorithms, but almost no understanding about networking principles. Hopefully this sets the stage.

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

Who actually owns container security?

In our company, developers build Dockerfiles, ops teams run Kubernetes and security just scans results. When a vulnerability is found, nobody agrees on who should fix it. Devs say not my code, ops say not my job and security doesnt have access. Who owns container security in your org? Is it devs, ops or security?

https://redd.it/1oe24mm
@r_devops

Linux Sysadmin Competency

Hey all! I’ve recently started work in DevOps as a junior engineer, will be handling GHE administration, creating/administering CI/CD workflow, and some basic K8s stuff after those two which has priority.

My background is I’m currently on a career switch, took a course on cloud&devops..
What can do to quickly gain the skill set and competency level for Linux sysadmin role? Which exams that I can consider? What courses are there which is useful on Udemy? I’ll be getting kodekloud subnoscription once I’m proficient and moving on to Kubernetes.
Will be working in a secure air gapped environment.

https://redd.it/1oe58ra
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Which bullets are the most impressive?

Which 5-7 of these accomplishments would you prioritize for a senior/lead engineer? I have limited space and want to highlight what's most impressive to hiring managers and technical leaders.

* **Serverless architecture processing 1M+ transformations/month at 300ms latency** \- Built high-performance async content pipeline using AWS Lambda, S3, CloudFront, and httpx
* **Complete product economics infrastructure** \- Designed token-based pricing, gamified leaderboards, affiliate referral system, and usage-based metered billing handling 30K+ API calls/month
* **Multi-tenancy PostgreSQL database design** \- Implemented UUID-based multi-tenancy with SQLAlchemy ORM and Alembic migrations on AWS RDS
* **OAuth2 authentication system** \- Integrated Clerk provider with async httpx client for secure cross-platform identity management
* **£0 to $6.4K monthly revenue in 6 months** \- Architected and monetized the entire platform from scratch
* **34% churn reduction** \- Used behavioral cohort analysis and DynamoDB event tracking to drive data-driven product decisions
* **Stripe payment integration** \- Built complete billing infrastructure with webhook handlers triggering Lambda functions via API Gateway and SQS queues
* **73% deployment time reduction** \- Built automated IaC CI/CD pipelines using AWS CDK, Terraform, and Nx distributed caching across multi-stage environments
* **Production-grade Nx Python monorepo** \- Evolved codebase with clean separation of concerns, dependency injection, and modular boundaries
* **Comprehensive testing suite** \- Unit, integration, and E2E tests with IaC deployment enabling continuous delivery across dev/staging/prod
* **Scaled team from 1 to 5 developers** \- Established technical hiring process and onboarded developers while maintaining code quality
* **Developer experience infrastructure** \- Built Docker containerization and local testing suites enabling team to ship production features
* **GenAI video/image editing automation** \- Implemented AI-powered content pipeline serving production workloads

Over 2 years I have started a bootstrapped company just adding each day, these are the main things; which should I include on my result?

https://redd.it/1oed073
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New DevOps engineer — how do you track metrics to show impact across multiple clients/projects?

Hey folks,

I’ve recently been promoted to a DevOps Engineer at a large IT outsourcing company. My team works on a wide range of projects — anything from setting up CI/CD pipelines with GitHub Actions, to managing Rancher Kubernetes clusters, to creating Prometheus/Grafana dashboards. Some clients are on AWS, others on GCP, and most are big enterprises with pretty monolithic and legacy setups that we help modernize.

I love the variety (it’s a great place to learn), but I’m trying to be proactive about tracking my performance and impact — both for internal promotions and for future job opportunities.

The challenge is that since I jump between projects for different clients, it’s hard to use standardized metrics. A lot of these companies don’t track things like “deployment frequency” or “lead time to production,” and I’m not sure what’s realistic for me to track personally.

So I’d really appreciate your help:

What DevOps metrics or KPIs do you personally track to demonstrate your impact?

How do you handle this when working across multiple clients or short-term projects?

Any tips on what to log or quantify so it’s useful later (e.g., for a performance review or a resume)?

I want more oomph then things like “implemented GitHub Actions CI/CD for X project” or “migrated on-prem app to GCP”, a way to make my future work appear more impactful.

Thanks in advance

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

How is AI changing DevOps?

Hey everyone,

Most of us have been using AI tools in our DevOps work for a while now, and I think we're at an interesting point to reflect on what we're actually learning.

I'm curious to hear from the community:

What's working well? Which AI tools have genuinely improved your workflow? What use cases have been most valuable?

Where are the gaps? What hasn't lived up to the hype? Where do these tools still fall short?

How is the role changing? Are you noticing shifts in where you spend your time or what skills are becoming more important?

Best practices emerging? Have you developed any strategies or approaches that others might benefit from?

I suspect many of us are navigating similar questions about how to stay effective and relevant as the landscape evolves. Would be great to hear what you're all experiencing and how you're thinking about it.

Looking forward to the discussion!

https://redd.it/1oefomy
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