SREs/Infra engineers -- any advice on prepping for troubleshooting interview rounds?

Usually the candidate will be presented with a scenario, e.g. 'application server is responding w/ 5xx status code', and the candidate is expected to walk interviewer through their troubleshooting process.

​

It seems like these rounds test, at a high-level, one's networking and OS knowledge. Any tips on prepping/acing these rounds? Much thanks in advance.

https://redd.it/og4kcm
@r_devops

What are your DevOps lessons learned during COVID times?

For me, the biggest lesson was around serverless, multi-cloud, observability, and security.

Found that,

Multi-cloud has many advantages than disadvantages.
Serverless is actually more than just using lambda
Observability is what we usually miss and has to be given more importance
Security can never be neglected, if you do this then you are dead.

What are your learnings?

https://redd.it/og55r6
@r_devops

What board column combination have you found most useful. Here's a selection from Microsoft Samples

1 |ToDo |develop |peer-review |Test&QA|deploy|done

2 |Approved|Committed| Development | QA | Done
Doing | Done | Doing | Done |

3 | new | Design | Develop & Test | Done
| Doing | Done | Doing | Done |

4 | New | In Progress | Done |

5 | New | Approved | Build & Test | Deploy
| Doing | Done |

Also a question. Can someone tell the the difference between New and Approved and what does Committed mean

https://redd.it/og55uk
@r_devops

Using Chef test kitchen with k8s

Hi everyone. I'm planning to test Chef cookbooks on Jenkins that runs inside k8s and I wonder, if it's possible to run Chef test kitchen inside k8s. I've found a project that looks abandoned, so it feels like it might be a dead end. Could anyone share their experience with that? Thanks in advance.

Abandoned project for running Chef cookbook tests in k8s: https://github.com/coderanger/kitchen-kubernetes

https://redd.it/og7wtx
@r_devops

GoCD Agent Authentication??

Hi all, having some weird behaviour and need some advice. I have a GoCD server with Google OAuth user authentication. I'm trying to set up agents, but I'm getting 403 errors in the agent logs, unless I have an active OAuth session for my user on the server? This does not seem normal..

https://redd.it/og9feu
@r_devops

I am aware of sites like weworkremotely or Upwork, but what would be the best place to find remote part-time contract gigs specifically (preferably in north america, but open to others) ?

I currently work for a large firm doing devops consulting/engineering - AWS and Azure and everything in between. Loving it, but looking to get some side hustle going for some extra income, if anyone can recommend me to a site or anything.

Thank you!

https://redd.it/og90hi
@r_devops

How much devops do your feature developers know

I thought that this might be a interesting question. Yes, DevOps is a culture, not a team. But in reality, how much of devops does your feature developers know. Do they know how to modify pipelines, configure infrastructure/configuration as code. Do they know how to write a dockerfile and configure/deploy to a kubernetes cluster? Do they know how to maintain a cluster and keep it running. Do they know how to configure/view your logging and monitoring?

https://redd.it/ogbw7i
@r_devops

Kibana - segregating logs based on a specific field

I am wondering if it is possible to filter/segregate data inside Kibana based on specific field.

For example, we have a multi-tenancy production environment and sometimes we have to work with external partners. Sometimes they request access to logs which we cannot give, since they would see a logs/sensitive data which does not belong to their project.

Obviously, one solution would have one kibana instance per tenant/client but at the moment this is not so easy for us to achieve since our entire backend running on EKS is tenant agnostic; meaning all services process events/data for all tenants.

I wonder if there is a way of segregating data inside kibana based on a specific field; so show only the logs of tenant A and give it to external developer. Our kibana is running on managed elasticsearch provided by AWS.

https://redd.it/ogct81
@r_devops

devops from interview to hired. What are your guys story when it came to getting your first devops gig?

Currently practicing devops by studying for certs, creating projects, and studying LeetCode. Got my first devops gig last year which was supposed to be a regular position but got thrown into more of a senior role even though the title itself didn't reflect it. Learned a lot though there wasn't much coding (at least for me). I did get to do a whole lot of sysadmin which was nice and I helped in shaving down time for OS install automation, IaC, etc. Now, here I am, laid off because of COVID (for a while now actually). How did you guys get your first and/or second gigs? Curious to know what all of your experiences are like. Open to any questions that you may have as well!

https://redd.it/ogdchl
@r_devops

External retrieved data integrity?

Hello /r/devops

Not sure if this is the right place to ask, but since DevOps might involve with some cryptography I decided to ask my question here.

For a new system we're building, we are systematically retrieving data from an external system (Basically via a cron job pulling new information from a REST API). One of the technical requirements is that we should be able to proof that the data we locally store, is indeed coming from the external data source after X amount of time. My first thought was to store some kind of reference to the SSL certificate used in the request and/or the certificate chain and do something cryptographically with the data to verify it's integrity (Not sure how yet, it's my first gut feeling on how to approach this since the SSL certificate is identifying the server the data came from).

Anyone has experience with this kind of subject? Or is able to point me in the right direction?

Cheers!

https://redd.it/oge39q
@r_devops

Live now Tim Kadlec testing WebPerf Optimizations with Cloudflare Workers & WebPageTest

Join the stream >> https://twitch.tv/webpagetest

https://redd.it/ogc46g
@r_devops

Service Connections on Azure Dev Ops

Hey Guys, someone know if its possible to create a Sonarqube service connection on Azure DevOps, calling a internal webserver or its mandatory that the webserver must have a public ip?


https://imgur.com/XTUjDSm

https://redd.it/ogf2ab
@r_devops

Canonical Survey highlights skills shortage in Kubernetes, with 54.5% pointing to a lack of in-house skills/limited manpower as their biggest challenge when migrating to/using Kubernetes and containers.

Canonical recently ran an interesting survey where they gathered data from 1200 respondents on hybrid and multi-cloud operations, Kubernetes, VMs, bare metal, goals, benefits, challenges, operators, advanced usage, edge, and more. This blog post digs into 5 of the data points we found most interesting.

https://redd.it/ogi31q
@r_devops

GITLAB CI/CD pipeline for embedded systems

Hello,

I am currently trying to develop a CI/CD pipeline in Gitlab that performs build, Static code analysis, unit testing, flashing an Stm32 using Raspberry pi, and smoke tests of the code on the stm where it communicates the results to the Raspberry pi.

I am currently trying to make the flashing stage of the pipeline where I have a Gitlab Runner on the Raspberry pi. As I understand it, I have to specify the port before running the docker image (when performing "docker run" ). However, I am uncertain as to how I will be able to the access the USB port on the Raspberry pi to flash the device when I am not performing the "docker run" command. Do I have to specify the port in the Entry point of the dockerfile, or is there a better way of doing it? Also, is there a way to make the runner notice which USB port is connected to the stm32 so that I do not have to hard code in the port?

Thank you

https://redd.it/ofk8hb
@r_devops

Measuring 40x and 50x errors on a K8s service endpoint with Prometheus?

Hi community,

Any idea how to go about this, can't find much clear info on google, to measure the Errors (40x, and 50x) on my service endpoints. My services are up and when I delete pods just for a test, I can see in the blackbox metrics that the prometheus gets and error, but not specified like 40x type or 50x.

https://redd.it/ogitx4
@r_devops

DevOps w/emphasis on Dev

I've been around on this sub for a while; mostly lurking. I created a new account today so as not to eventually dox myself.

My impression is that a lot of folks here are in what seems to be a more Ops focused role. My team is "Engineering Operations" and our job is to develop tools that help dev teams implement devops or just generally deliver their code more quickly. Aside from using DevOps within our own team, we don't manage any infrastructure, that's done by an entirely separate team that we work closely with.

Is this fairly common? How many of you basically focus entirely on development of tools? Is that just your role, or the role of your team?

https://redd.it/oggqzy
@r_devops

Do my French salary is enough ?

Hi,
I’m actually working as a devops engineer in a French fun-tech.
I have 3 years of experiences.
I’m working on technology such as Jenkins Kubernetes Salt Ansible.
Developing with Python and Groovy.

Actually my project is the migration of an Java applications into a modern application with spring (I’m only working on the infrastructure part).
I have actually migrate 99% of the application on Kubernetes with cluster on aws, azure and on-premise cluster (which I have setup alone).

My salary is 44000€/ Years and I’m living in Paris.

Actually thinking about finding a new job to have a better salary.

Did you think I’m wrong ?

Thanks for your response and sorry for my English !
I’m available for any of your questions.

https://redd.it/ogeqwx
@r_devops

GitOps - the Evolution of DevOps (list of resources)

Sharing a curated list of GitOps resources: articles, books, podcasts and videos to help anyone interested in the topic get a profound understanding of it.

https://github.com/microtica/gitops-resources

The idea is to create a centralized place with the most valuable GitOps content.

This will be a growing list available on GitHub, so please feel free to contribute.

https://redd.it/ogx6ta
@r_devops

How do you manage Jenkins pipelines at scale?

Working in a company with over 1500 employees. 7-8 different languages. Adding complexity of versions like Python 2 and 3, Java 8 to 11 etc.

How do you manage pipelines at scale?
Keeping 1 pipeline per language? (Then how to keep things flexible)?
Keeping pipelines in repo?

Or any other way to manage?

https://redd.it/ogwps4
@r_devops

HELP Azure Pipeline DevOps



Hi guys,

I'm here because I need some advice. After all, It's my first Azure Pipeline. I'm currently developing an Azure Pipeline and I already have Build Pipeline with these stages:

Info
Copying
Test
Security
Build
Updating

So, I want to use a Release Pipeline and migrate two stages from Build Pipeline to Release Pipeline. Specifically, the stages are "Build" and "Updating" that you can find the code here.

Finally, if you see other advice from my code, please let me know.

Thank you in advance for any help you can give!

https://redd.it/ogypps
@r_devops

Any of you ever take one of those “nice to haves” out of your backlog without telling anyone to work on during your spare time?

We have a rather large back log with things we’ll probably never get to any time soon. A good chunk of these issues I’m not really familiar with. I just picked one issue, and plan to try to “build” it out myself off hours for learning/experience.

https://redd.it/oh1dqi
@r_devops