Everything DevOps

'Getting into DevOps'

2022-11-01T16:45:29+00:00

What is DevOps?

AWS has a great article that outlines DevOps as a work environment where development and operations teams are no longer "siloed", but instead work together across the entire application lifecycle -- from development and test to deployment to operations -- and automate processes that historically have been manual and slow.

Books to Read

The Phoenix Project - one of the original books to delve into DevOps culture, explained through the story of a fictional company on the brink of failure.
The DevOps Handbook - a practical "sequel" to The Phoenix Project.
Google's Site Reliability Engineering - Google engineers explain how they build, deploy, monitor, and maintain their systems.
The Site Reliability Workbook - The practical companion to the Google's Site Reliability Engineering Book
The Unicorn Project - the "sequel" to The Phoenix Project.
DevOps for Dummies - don't let the name fool you.

What Should I Learn?

Emily Wood's essay - why infrastructure as code is so important into today's world.
2019 DevOps Roadmap - one developer's ideas for which skills are needed in the DevOps world. This roadmap is controversial, as it may be too use-case specific, but serves as a good starting point for what tools are currently in use by companies.
This comment by /u/mdaffin - just remember, DevOps is a mindset to solving problems. It's less about the specific tools you know or the certificates you have, as it is the way you approach problem solving.
This comment by /u/jpswade - what is DevOps and associated terminology.
Roadmap.sh - Step by step guide for DevOps or any other Operations Role

Remember: DevOps as a term and as a practice is still in flux, and is more about culture change than it is specific tooling. As such, specific skills and tool-sets are not universal, and recommendations for them should be taken only as suggestions.

Please keep this on topic (as a reference for those new to devops).

submitted by /u/mthode
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Monthly 'Shameless Self Promotion' thread - 2023/01

2023-01-01T18:01:55+00:00

Feel free to post your personal projects here. Just keep it to one project per comment thread.

submitted by /u/mthode
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What's the difference between a DevOps engineer and a 'Cloud Engineer'?

2023-01-28T00:04:47+00:00

See this job ad: https://www.seek.com.au/job/59885404?savedSearchID=3e94a897-166e-4df8-9ea6-7ebcb74c2169&tracking=JMC-SAU-eDM-JobMail4.06-3886

Some of the technologies that are required I've noticed are also required in Devops roles. What is the difference between the two and are these technologies used in scaling web applications?

submitted by /u/internetbl0ke
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Anyone studying for RHCSA?

2023-01-28T11:48:05+00:00

Studying for RHCSA. Anyone else doing this that wants to help keep each other accountable? Any discord servers that may have people studying for this?

submitted by /u/Perfectdarkmode
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Alternatives to Terraform

2023-01-27T15:54:37+00:00

Every project I did in the last five years used Terraform. And I started to not like it anymore. The code is becoming very complex and unreadable. Do you guys know about any alternatives? Something that is modern, lightweight, easy to understand, and easy to maintain. I was thinking about experimenting with Pulumi since it would allow my dev colleagues to do more infrastructure work. What do you guys think?

EDIT: I tried terragrunt as well, but it doesn't feel like it reduces complexity. I operate stuff in AWS btw.

submitted by /u/krypt0nyt
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is there really no way to tell if a PR came from a fork in Drone?

2023-01-28T02:29:08+00:00

I've tried adding a repo trigger condition like their docs suggests, and looking at all of the DRONE_ prefixed environment variables and none of them reference my fork or suggest that the pipeline is running because of my fork.

Even git remote -v just shows the upstream remote and not the fork.

Any ideas? I'm even open to trying the GitHub API if i have to but I'd really rather not.

submitted by /u/klm0151
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Interview for DevOps / SysOps position - need help !

2023-01-27T21:03:37+00:00

Hey fellows sysadmins, I have a technical interview monday morning, for an amazing DevOps / SysOps job. It would be my dream job, and I'm trying to prepare as much as I can.

Can any of you shoot me tricky questions (other than those 5 same questions I find over and over) ?

Also, any advice for the interview or about interview prep is welcome :)

For context, here is the stack i'd be using :

Docker, Kubernetes, Ansible, Terraform, IaaS platforms such as AWS and Azure, SaaS or multi tenant software, Elasticsearch and Kibana, Platform monitoring such as Datadog, Grafana and Prometheus

I think I'm ok with Ansible and terraform, maybe even AWS. ES, Kibana, Datadog I lack experience in.

Thanks for any help you can give and wish me luck !!

submitted by /u/Captaincactus57050
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Not getting any calls for jr DevOps roles (2 years of exp)

2023-01-27T16:03:23+00:00

Hey,

I would appreciate advice on finding jr DevOps job.

I am an international student graduating with a Masters's degree in CS in May. I have 2 years of previous experience in DevOps. And I have internship experience in a Fortune 500 company from last summer. I applied to 100+ jobs on LinkedIn and I am still not getting a single return call.

I have university projects + internship exp + my DevOps exp in my resume. However, due to the 1-page restriction, I cannot put every DevOps task I have done in my resume.

Should I make a separate resume only with my previous DevOps exp? Do uni projects matter?

What do I need to do differently ?

Edit: My Resume Link: https://postimg.cc/Wt3KXmdf

submitted by /u/mrStark3
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Cons & Pros of switching from Intel MBP to M1/M2 MBP?

2023-01-27T17:46:42+00:00

Hi.

I currently have Intel MBP 16" 2019, and considering an upgrade to new M2 (need larger HD & more RAM).If you switched, what kind of issues have you encountered? Any problems with daily tools?

In my daily DevOps work, I use:

Multiple docker containers (mostly Debian/alpine)
K8s
asdf to manage multiple local versions of Ruby, Python, Crystal, Elixir, C++, Node. Any issues compiling, especially older < 2.4 Ruby?
Assortment of CLI tools
Parallels to run Windows 7 VM sometimes to test stuff / legacy programs
VSCode
Move back and forth large amounts of data daily - mostly 7z's of SQL, TXT & CSV files, for dev databases - MariaDB & PostgreSQL
MS Office for work stuff - teams, outlook, excel.
Any more or less popular Mac Apps that would not work for you or you couldn't find decent alternatives?

Any feedback is appreciated :D

submitted by /u/kinvoki
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How to use a custom external service LB on K3s

2023-01-28T02:25:57+00:00

I am sharing my experience of using an external service LB on K3s:

https://cloudybytes.medium.com/k3s-using-loxilb-as-external-service-lb-2ea4ce61e159

Did anyone have experience of using other external LB like metalLB or Klipper with k3s ? Kindly share your experience if any.

submitted by /u/ZestyCar_7559
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I took the AWS Purity Test, I think I may spend too much time in AWS….

2023-01-26T21:34:27+00:00

Colleague sent this to me - thought this was pretty funny. I got a 43.

Not sure if this is allowed but here's the link if any of you want to take it, let me know your scores: https://www.awspuritytest.com/

submitted by /u/gjhht
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You are asked to build your CICD from scratch, what do reach for?

2023-01-28T10:37:35+00:00

New week, New Ideas, New thoughts, starting fresh

View Poll

submitted by /u/gxxgly_eyez
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IaC best practice question for build server

2023-01-27T21:09:33+00:00

Hi All -

Probably a n00b question, but curious what the best practice is for installing software dependencies on a build server for Windows OS.

Should I be installing them from their respective download mirrors during build time or grab all the binaries for the particular version I want and store them on-prem (arty) and pull them in and install during the acutal build?

My concerns with pulling from mirrors (git for example) is if the mirror is down or if my build server picks up a new version that "borks" my CI/CD jobs.

Just looking for best practices for this sort of thing..

Thanks!

submitted by /u/swiftsparky
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Any gotchas with Organization name change?

2023-01-27T19:30:00+00:00

We want to change our org name in DevOps. i.e. from https://dev.azure.com/companyA/ to https://dev.azure.com/companyB/

This seems easy enough to do Organization Settings --> Name. Change the name, then update the URL and that's it.

Aside from the obvious name and URL change, does it impact, in any way, the existing projects that are linked to the Organization name, including all source code, tickets, shared projects, and permissions?

submitted by /u/bradnerboy
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Cloudfront Response Headers

2023-01-27T15:43:08+00:00

hi everyone,

ME:

I’m a DevOps Engineer and just started my journey in AWS 3 months ago, I’ve been using Azure for the last 3 years. I don’t have much experience on deploying webapps, but I’m learning.

BACKGROUND:

One of our public websites in Prod has been flagged by vulnerable for attacks by the security team, they suggested to enable response headers in cloudfront:

csp_no_policy_v2
hsts_incorrect_v2
x_content_type_options_incorrect_v2
x_frame_options_incorrect_v2

I implemented it via Terraform and works well upon our testing and using curl, the response headers are showing properly.

Unfortunately, one of the QA told us that the website is not functioning properly, like failed logins and website could not be loaded on mobile device browsers such as Safari, and Chrome.

I reverted the changes and they did some testing again, and confirmed that it worked.

QUESTION AND CONFUSION:

How did that affect the website’s health and functionalities, when we only implemented response headers? Its not clear. Could someone please explained what happened?

I can’t find an article or resource explaing how it is connected?

For reference this is the headers that were implemented in Terraform:

security_headers_config { + content_security_policy { + content_security_policy = "default-src 'self' 'unsafe-eval' 'unsafe-inline' blob: data: https: wss://*.smooch.io;" + override = true }

 + content_type_options { + override = true } + frame_options { + frame_option = "DENY" + override = true } + strict_transport_security { + access_control_max_age_sec = 31536000 + include_subdomains = true + override = true } }

THANK YOU SO MUCH!

submitted by /u/woocats
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GitLab deciding between ArgoCD and Flux (spoiler: they went with Flux)

2023-01-26T21:27:57+00:00

Really great discussion at GitLab about adopting Flux over ArgoCD. Long thread, but great information in there and highly recommend a quick read.

Have you had to make a similar decision, choosing between ArgoCD and Flux? If so, what'd you end up with and why?

Personally I work with Flux and really enjoy it, but I don't have a ton of exposure to ArgoCD.

submitted by /u/chillysurfer
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Remediating flags from tools in the CI/CD pipeline

2023-01-27T20:04:39+00:00

Because of the great responses on our previous article on this channel, we have created one of the promised follow up articles.

This one is focused on the how-to of fixing the initial set of flags the chosen tools in the CI/CD pipeline have raised. This includes raising the test coverage, and ensuring that all third party software is configured with best practices and passing security benchmarks.

Enjoy the read, and feedback is always welcome: https://www.coguard.io/post/security-hardening-react

submitted by /u/ioah86
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Advice for a student

2023-01-27T19:41:21+00:00

Hello ,

I don't know if the right place to ask my question, so sorry in advance.

I am currently a computer science student on my penultimate year of study, and I want to start a career as a DevOps engineer (after taking a year off).

I've already had the opportunity to learn a lot of technology related to the field (docker, terraform, Jenkins ....), and I've come to wonder if I should start learning more about this technology or if by the time I work my knowledge will have become useless.

Should I already get certifications ( AWS , terraform ....) or should I wait? Or do I wait for the moment when I would like to work to get trained, to get the certifications .

Thank you in advance for your advice and feedback.

Ps: if the post doesn't fit here, can you advise me a /r where I can ask my question?

submitted by /u/Ratedworld
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Moving to another fellow EU country as remote worker

2023-01-27T23:19:07+00:00

Ok I thought to give it a go since I am sure here are some brilliant people who have broken the matrix and they are keen to look after their selfs and their best interests to live their life on the own terms so...

I am working in a company mostly remote. I am close to office but I don't go more than few times per year and I have to pay a expensive rent on a small town also that restricts me to a lot things... So I was thinking if it's possible to change country and rent to another city in another country and visit the company on these few occasions. I don't intend to inform anyone of this for obvious reasons so I was wondering if it's possible to have any legal issues... Is any way where the country government can check on that? If I am not mistaken even working full remote for a company if you are applied to country's tax system you should have a permanent resident/address and you must also be 5 or 6 months stated in the country? Anyone have done that?

submitted by /u/Felix1178
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Question about IT

2023-01-28T05:00:20+00:00

Hello hello! Can anyone explain to me please what is the difference btw a DevOps engineer, an Infrastructure engineer, and a software engineer?

submitted by /u/Alina-new-devops
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MBP M1/M2 Pro/Max .. 32 or 64 GB?

2023-01-28T01:27:24+00:00

Hey folks, I need to get a New laptop. I work mostly on devops stuff, coding, etc. I do need docker, etc.

Money aside, is 32 enough? Rather than money, my concern is that to get 64 GB I would need the Max processor, and that cpu has a bit less battery life than the Pro.

submitted by /u/Winter-Maize-6667
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Can anyone give tasks to practise in Devops and Aws?

2023-01-27T07:05:01+00:00

We are group of self learning Devops studs. We are unable to offord premium training programs. we want some real time experience persons to guide and give us simple to moderate tasks that you perform as part of your Devops job.

We have setup free GCP account for playground. Thank you in advance.

submitted by /u/parttimehuman13
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Interesting CI/CD Problem Involving GPU compute

2023-01-27T06:30:58+00:00

Due to firewalls and corp stuff we can only run Jenkins on CPU machines... but we have a use-case where we need to run an automated and long-running GPU-dependent process.

We have connectivity to AWS GPU instances from our Jenkins server, so I was trying to SSH and run the command to kick off processing from there.

My challenge is the ssh connection gets terminated while the process is running (due to sshd config params that I can't change because of security policies).

Any thoughts on a work-around for this? Essentially run a jenkins job that runs a long process on an AWS instance and retrieves the outputs to display gracefully in the console.

submitted by /u/No-Slip-5963
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How long would it take you to deploy a ECS cluster in a brand new AWS account?

2023-01-27T06:41:27+00:00

Recently I did some work for my client which included setting up an ECS cluster, load balancer and a database for prod and dev environments. Also automated deployment by using Gitlab CI/CD.

My initial estimate was between 8 and 10 hours but it took my longer.

Now I am just wondering how long would take someone else?

Just to note that deployment was trough GUI because it probably matters discussion wise.

submitted by /u/Morph707
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Anyone here burned out? How do you deal with it?

2023-01-26T15:43:32+00:00

I been at my same job for 4 years now and promoted twice. I love doing what I do, I think it's just I'm tired of working at the same place doing the same thing everyday. I implement a lot of feature requests for future releases and bug fixes from all the tickets we get. It's the same thing every release and it's repetitive as hell. I decompress by hauling equipment for companies or moving people's stuff in my truck as a side hustle, which helps my mental state some. I just wanted to vent that I'm burnt out mentally.

submitted by /u/neomorpheus1
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CalTech certification program in Devops?

2023-01-27T02:33:34+00:00

Expressed interest in a cert program -- its about $5k. I think the gamut it runs is 3 months.
CTME | DevOps Post Graduate Certificate Program (caltech.edu)

They are following up pretty often -- spoke with an instructor pushed back a little by saying that some of the curriculum is old (why are they teaching Jenkins, Chef, Ansible) -- they said they do cover Terraform, not sure why it's not listed on curriculum. I could learn on Udemy for free if disciplined -- already have Nanodegree from Udacity.) Platform for training they use is Simpliearn.

I'm told

1) Offered 20 projects to work on to add to portfolio along with a capstone project

2) 85 percentage job placement (mid-level to beginner)
3) All remote no in person (live in-person bootcamps can run north of $20k+)

Red flags are for me obviously the

1) Cost (for a certificate program -- and not sure even how the quality of the program is. Just marketed with Caltech name)

2) Classes are taught on weekend -- not sure how many hours but imagine 8 total

3) Curriculum material seems old-- seems to generalist (maybe a week or two cover Kubernetes)

Also by doing it online, you are not building networks or real-life relationships, which gets overlooked for getting jobs.

My goal is to find a somewhat legit program that could make you me more competitive in the job-market. I've been out of market 3 months and want to keep my skills sharp (partly health reasons and massive burnout). Longer I'm out harder it will be to keep my skin in the game. I'm currently doing job-hunting and even with job thinking it might be an investment to help me develop my career. There are front-end, AI, bootcamps -- don't have the interest in those and also its in person

As someone with 2 years of experience and mostly self-taught, is this something that would be helpful? Obviously you want some type of outcome and not get screwed with not getting value. Some aspects seem sus, obviously I know they want your business.

submitted by /u/defqon_39
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Tool for app testing?!

2023-01-27T17:08:11+00:00

I don't know if this is the right subreddit for this question but I have a network where I have many systems that are directly unsupported for the application our organization is working on and what to set up an in-network server for the testing application.

I've heard about Citrix and Winflactor for my use case but both cost a ton and Citrix even has a complicated learning curve.

I'm looking for an easy-to-use solution, preferred open source software, that works on Windows and Mac OS.

submitted by /u/SohilAhmed07
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