How to calculate cycle time (process time) ?

Hello everyone, me and my team (one other guy) are working on a project, we have a Github and we decided to follow Devops principles to learn. We also created a Kanban board for the project directly on Github. Now, we'd like to use the github API to calculate the process time for each given task (issue), but it seems the Github API is lacking in terms of what issue is on any given column, so that we could get the issues in the todo progress and save their dates when they were first added in the column, so that we could use this date (minus) the date the issue is closed at to get the process time. Does anyone know how to use the github api to get the cycle/process time?

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How did you get into devops?



View Poll

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Y’all fixed ur sudo yet?

Sudo where is my sandwich? (Another user ate it.. ;) )

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Decentralize Infrastructure As Code

As a developer I love infrastructure as code, especially collocated with my service code. For example, having Jenkins pipelines or k8s manifests in the same codebase as the source code for the service. One problem I face though is that I work with a couple of centralized repositories that manage things like secrets or Terraform definitions for my stateful backend pieces like storage (e.g. one large repository for all terraform).

There are some good reasons these things are centralized: auditing, human gating for cost and security reviews, as well as an ability to bootstrap it all in case a new environment needs to be spun up.

The downside as a developer is that it adds friction. I need to go make changes in a separate repository, possibly wait for team-external review, etc.

I'm curious if anyone has run into similar issues and find a compromise. I was hoping to allow service teams to "mount" (maybe use git submodules from the centralized repository) config related to their service, and get the benefits of having the service dev team be more independent.

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I've got some Kubernetes diagrams to share

Hi folks!

As a Kubernetes freshman, I've been looking into ways to customize it. And, to my surprise, I came to the conclusion that the Kubernetes API plays a very important role there. Custom resources seem to be a very good design decision because they can be manipulated in the same manner as any other built-in resources, such as Pods, Namespaces, or Services. However, the documentation is a bit bloated and the API structure is far from being trivial. So, I ended up drawing this diagram with Kubernetes API structure. Then I turned to the Operator Pattern because apparently custom resources without code actually have very little use. And found myself reading tons of vague articles full of some marketing speech. So, when I finally figured out that operators are simply Pods with custom controller logic watching and manipulating custom resources, I ended up making an animation of one of the operator's logic (or full-sized GIF, but be careful, it's 16 MB). Since operators are actually control loops, I thought that it might be easier to grasp the idea by looking at a dynamic visualization, not a static diagram. And finally, I also wrote an introductory but concrete article about the Operators Pattern with some useful (in my opinion) links in the end.

Sharing my findings because I hope it may safe time for people on a similar journey!

https://redd.it/l9gp5b
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Getting into DevOps from full stack web - what, where and how

Hey there. While I work as full stack, I've also worked with gscripts, python, java, aws s3, and other technologies before. I was told that DevOps kind of includes different technologies and languages in order to deliver a product. To be fair, I don't know a lot. What I know is that AWS certification is very important however. So where would you recommend me to start? Some udemy course I presume? I saw plenty about AWS solutions and Kubernets, but honestly I have no idea what they mean by that, nor do I know what's Kubernets. I just want to know what the best possible road I can take to reach a satisfactory level in order to take the AWS exams, and even which one of those should I take. Thank you.

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Production-grade Kubernetes (self-hosted)

Hi guys,

I have been looking for production ready kubernetes on self-hosted environment. But could not really find anything that was for my need or was a bit suspicious of the security.

So far, i have only used kubernetes on local machine using Docker Desktop, which was pretty straightforward to use.

I have onpremise server and hosted server on Hetzner. Both has ESXi running and ready to be used.

I know that 3 masters is recommended, but i have 2 for now, and that is unfortunately the budget for now.

What i am thinking is:

2 masters = 1x master on each server

2 nodes = 1x nodes on each server

How can i build such an environment?

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News AWS Re:Invent Re:Cap 2020 - Summary of the Latest AWS Features

I made a summary of the latest features announced by AWS from the Re:Cap session.

You can read the summarized version below:

https://kevinvr.medium.com/aws-re-cap-2020-summary-latest-amazon-web-services-features-290a9d5de718

Which feature are you excited about? I particularly like the 1ms billing granularity for lambdas, but the mac1 instances are also quite neat (except the cost which I believe could be improved, as summarised).

https://redd.it/l9n4qg
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AWS: How to see S3 Bucket request metrics, egress and costs

Vantage posted this blog post on how to enable S3 Bucket Request Metrics (and showing associated costs which is really nice) and thought the AWS folks here might appreciate it: https://www.vantage.sh/blog/how-to-see-s3-bucket-request-metrics-egress-and-costs

https://redd.it/l9qkcd
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MongoDB - set replication to DocumentDB

We're setting up a local MongoDB cluster - Locally, we'll have one primary and one node, and we want to have another node in AWS. Is it possible to have that node as the DocumentDB service instead of an EC2 instace?

Also, I know I must have an odd number of total nodes, is it possible to first add one node and then add another one?
Thanks ahaed.

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SSH to Dell switch without password

When I SSH to a dell switch, it asks me for a password. I'm trying to set the SSH keys so it wouldn't ask me for that but I just can't get it to work. I couldn't find anything useful online or in Dell's documentation.

How do I edit the authorized keys so that I could SSH without a password?

Also, when I log in, I have to type en to start the shell. Can I disable the need for that too?

Model is PowerConnect 6248.


Thanks ahaed.

https://redd.it/l9bsnz
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Run Python Code in a Shell Script

I recently wrote a blog post on how to run Python directly from a shell script. As DevOps professionals, we oftentimes have to mix complexity that is best done in Python, but we don't want to manage or maintain multiple files for the script functionality.

This post shows how you can embed your Python code directly in your shell script. Also it can show some things you need to consider. And finally it explains how to debug that Python code!

https://redd.it/la4x3t
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Monthly 'Getting into DevOps' thread - 2021/02

What is DevOps?

[AWS has a great article](https://aws.amazon.com/devops/what-is-devops/) 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](https://www.amazon.com/dp/1942788002) - 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](https://landing.google.com/sre/workbook/toc/) - The practical companion to the Google's Site Reliability Engineering Book
The Unicorn Project - the "sequel" to The Phoenix Project.
[DevOps for Dummies](https://www.amazon.com/DevOps-Dummies-Computer-Tech-ebook/dp/B07VXMLK3J/) - 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](https://github.com/kamranahmedse/developer-roadmap#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](https://gist.github.com/jpswade/4135841363e72ece8086146bd7bb5d91) - 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.

Previous Threads
https://www.reddit.com/r/devops/comments/koijyu/monthlygettingintodevopsthread202101/

https://www.reddit.com/r/devops/comments/k4v7s0/monthlygettingintodevopsthread202012/

https://www.reddit.com/r/devops/comments/jmdce9/monthlygettingintodevopsthread202011/

https://www.reddit.com/r/devops/comments/j3i2p5/monthlygettingintodevopsthread202010/

https://www.reddit.com/r/devops/comments/ikf91l/monthlygettingintodevopsthread202009/

https://www.reddit.com/r/devops/comments/i1n8rz/monthlygettingintodevopsthread202008/

https://www.reddit.com/r/devops/comments/hjehb7/monthlygettingintodevopsthread202007/

https://www.reddit.com/r/devops/comments/gulrm9/monthlygettingintodevopsthread202006/

https://www.reddit.com/r/devops/comments/gbkqz9/monthlygettingintodevopsthread202005/

https://www.reddit.com/r/devops/comments/ft2fqb/monthlygettingintodevopsthread202004/

https://www.reddit.com/r/devops/comments/fc6ezw/monthlygettingintodevopsthread202003/

https://www.reddit.com/r/devops/comments/exfyhk/monthlygettingintodevopsthread2020012/


https://www.reddit.com/r/devops/comments/axcebk/monthlygettingintodevopsthread/

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

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Do DevOps Engineers need to know how to code?

I'm starting to work in DevOps Engineering and want to value add... I'm reading, listening and learning fast and furiously.

I see people coming from solutions architect, software engineer, sys admin... how much does a devops engineer need coding skill?

https://redd.it/laf6um
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Automated deployment of ssh public key to 1000s Windows nodes

We use Chef for config management of 1,000s Windows 2012/2016+ servers. Have a need to deploy a public key into C:\\Users\\<user>\\.ssh\\authorized_keys.

However, while refining the requirement I recall that during a server's initial configuration a local user's profile is not created, so the C:\\users\\<user> folder doesn't exist. If I create in code it won't be associated with the user.

I am interested in how people have managed this in their environments. Perhaps I have missed a subtlety of ssh.

Servers have WinSCP and OpenSSH installed.

The Supermarket cookbook https://supermarket.chef.io/cookbooks/ssh\_authorized\_keys does not support Windows.

Regards

https://redd.it/la7n8h
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What's cooking in your Kubernetes namespace?

As Kubernetes platform engineers, have you ever wondered what all things are running in the various namespaces that you have provisioned for your product teams?

We have developed a kubectl plugins to help answer that question. Check it out:

https://cloudark.medium.com/whats-cooking-in-your-kubernetes-namespace-9200be114f8

https://redd.it/lakvn7
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Transitioning from current role into a DevOps role

Hello,

I want to transition from my current role as a network engineer to DevOps. I have previous experience as a sysadmin dealing with mostly a Windows environment and some Linux. I also managed the VMWare infrastructure in that previous role. From reading some of the posts with similar questions it seems the sentiment is to work on projects and not to focus too much on certifications. What projects should I work on that I could leverage when applying to DevOps roles? Any advice is appreciated.

https://redd.it/la9isc
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Building Docker Images The Proper Way

Hi /r/devops

Today I published a new article about optimization and improvements of Docker builds, such as caching, reducing image size or making images more secure and I thought some you might be interested in this kind of an article. So, here is the link:

https://itnext.io/building-docker-images-the-proper-way-3c9807524582

https://redd.it/labibx
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CI vendor comparisons?

I'm looking for an in-depth comparison of CI vendors. My company uses many CI providers and we're looking to consolidate. I figured there are already some good comparisons written.

Must be a recent comparison ideally written in 2020 or 2021.

Feature set, usability, reliability, and cost are the dimensions I'm most interested in.

https://redd.it/lab9v0
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Setting up Samba on Docker?

I hope this is the appropriate place to ask this question. If not, please direct me to the appropriate subreddit. I'm just barely getting into devops. I wanted to try to set up a Docker container for an SMB server, create a share, and then access that share with smbclient. I tried downloading the dperson samba image from https://hub.docker.com/r/dperson/samba. It looks like I was able to run it correctly and, following the instructions on the page, was able to create some shares. The exact command I used was:

&#x200B;

sudo docker run -it -d dperson/samba -p \\

\-u "example1:badpass" \\

\-u "example2:badpass"

\-s "public;/share" \\

\-s "users;/srv;no;no;no;example1,example2" \\

\-s "example1 private share;/example1;no;no;no;example1"

\-s "example2 private share;/example2;no;no;no;example2"

&#x200B;

When I try to use smbclient to connect to it, I can even see the names of the shares. Trouble is, I cannot figure out how to open up the SMB terminal! Smbclient just returns me to my original terminal every time! It shows a message saying "no workgroup available". It also says "SMB1 disabled", but I think that is mitigated with the `-m SMB3` option.

&#x200B;

smbclient -I <IP address of docker container> -L <name of container> -U example1%badpass -m SMB3

&#x200B;

I'm pretty new to both Samba and smbclient so I may be making just a dumb mistake. If there is a more appropriate Docker image to use on Docker hub, let me know.

Thanks.

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Starting a Junior DevOps Engineer position in a week. My experience is 2 internships in full stack engineering. Will it be hard to return to the world of development after a year in DevOps? Worried I will miss coding too much.

background:
I'm compelled to take this position because income is a priority at the moment and this was the highest offer I received among all my junior dev/DevOps positions. However, the team is made up of friendly people who I get along with very well and are very interested in training me and I love the company culture and perks so its not by any means a loss. I also am genuinely interested in developing DevOps skills. I am told that there is ample opportunity to perform tasks programmatically.

my issue:
I can't help but worry I'm putting myself in a box very early on in my career. I love programming and developing features. If I wanted to return to development, would it be very hard to convince employers I have wake it takes to do development after a year in DevOps?

https://redd.it/lam85o
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