Code structure to build a single image and apply multiple environments.

Hi, my source code and manifest are stored in the same repository.

Every time the developer commits new code, CI bake and deploys an image to Kubernetes. Target Namespace and Cluster selected based on the source code's branch. ( e.g. branch test/env1-> deploy to namespace env1 @ testbed ).

This strategy is easy and simple but can't archive the immutable infrastructure.. since CI builds an image for development and production separately.

I thinking about having a single image apply to all environments. To archive that I think I need to separate code from the manifest.

That will make the code structure make complicated. So I would like to listen to your advice.

Thank you.

https://redd.it/e8oios
@r_devops

First DevOps project -> Start with using AWS?

TLDR:

Team asked me to set up something that can serve as a dev environment and showcase current status of projects to simplify collaborating with clients. Send halp! Team leaning towards using AWS.

​

Full:

I usually do front-end dev work and am currently working for a consultancy company. Company is cool but some things are very old school and take a lot of meetings to change. One thing my team wants is to have some sort of portfolio-like environment to hold our current projects where we can work locally, push up our changes, and have some sort of pipeline that updates this portfolio so that we can more easily see the most current version of whatever we're working on as well as have an easy way to have our clients see where we are at and get feedback at all stages of development. My team figures it will be quicker to just build our own and, since none of us are experts, just get into AWS because we're gluttons for punishment, it is industry standard, they have a million tools and products, and it is something we could keep building on to try new ideas in the long term.

I have no idea what I'm doing but I'm happy to learn whatever I need to get this done, I just need:

1.) Feedback if AWS is the right choice for us or did we just pick that because we're too clueless to know that there is something better for the long-haul.

2.) What products on AWS I should be focusing on to get this done. So far I think just a simple S3 account to hold static projects and we could have some sort of login that can be created for clients to only see their project. I don't know if we'll have more complicated projects in the future (like ones that require server traffic) and not sure how hard it is to migrate stuff or add that kind of functionality later. I'd rather put in the extra work at the beginning to future proof this some (and because if I'm going to do this I might as well do this right) but also do not want to just waste company time and money on something that we will never use.

Any pointers would be greatly appreciated!

Thanks so much in advance :D

https://redd.it/e9pame
@r_devops

Suggestion request: a kubernetes-like service discovery without the cluster

I am hoping I can get some interesting ideas from people with more experience and knowledge in this domain. What I basically want to achieve is having multiple nodes, on each node having multiple services names a, b, c in any combination (each node can have any combination of a, b, c instances). I want each service to be able to communicate with other services via dns with the service names, so when a makes a request to [https://b/api/resource](https://b/api/resource), it will go to a container with the b service on any node. I am thinking that some kind of mesh proxy sitting locally that will route the traffic as needed would be the best to go, but I can't seem to find anything that can run outside of a kubernetes cluster.

I looked into envoy proxy but it seems like a more cloud native nginx alternative and other solutions seem to target specifically the kubernetes market. Having a kubernetes cluster is not a possibility for me as it has quite some overhead with the control plane and is too much overkill just for what I am planning to do (probably 3 nodes with some replicas).

Another solution I thought about is having a nginx in front on each node that knows about the local services and can route based on host, a "centralized" load balancer where all service name dns will point to and when a services makes a request to [https://b/api/resource](https://b/api/resource), it will be routed by the main load balancer to a nginx that has at least a container with **b** running

What other (open source) solutions are there that be more appropriate for these kinds of requirements?

https://redd.it/e9npsg
@r_devops

When just starting out as a startup, what's the most affordable storage service do you recommend when developing apps?

I am working on a music and movie streaming service for my country but I don't know what would be the most affordable, scalable and efficient storage service for my platform. At first I was thinking either firestore or AWS but companies like Spotify use like Hadoop so I would like to hear your own opinions!

https://redd.it/e9sa9c
@r_devops

How to actually get good at basic DevOps if i'm not already hired

I'm a full stack developer. and i recently was interested in getting into the devops world. learned about docker, clustering, kubernetes but only the very basics, like tutorials level basics. How should i actually get good in Devops if i'm not working for a company that requires me to solve such problems? as a developer, i would just build stuff and scale it since theyre just apps.

https://redd.it/e9nl05
@r_devops

Kemp 360 Central

Hey - we've build Kemp 360 central to allow admins and devops to see traffic across multiple load balancer products - and its 100% free. We think the multicloud might make it more difficult to understand how many users are hitting your applications in one or more locations and across more and more devices.

https://redd.it/e9ppv8
@r_devops

CI testing Linux/Windows integration

I have a application that interfaces with a Microsoft SQL Server database. I can test it on Appveyor under a complete Windows environment. However, I would also like to try testing the code on Linux, while some SQL Server is also out there on a Windows test environment. I know Appveyor does have Linux testing containers. Does anyone know if there is a way to sync two test containers up, one Linux, one Windows to try this? If not, any suggestions on workarounds?

https://redd.it/e9vmrp
@r_devops

Spot instance and custom domain

Hi, apologies if this is not the right sub.

I have a custom domain and currently and EC2 instance server where the application is hosted. Long story short, it's only used a few times a month but I am still paying for the "unused time".

I decided to change it to a spot request instance but I am confused with something: can I point my domain to this instance ( I have an Elastic IP associated with it)? What happens when the instance is not "allocated"?


Appreciate any help. Many thanks.

https://redd.it/e9o6x2
@r_devops

Dockerfile linters wanted!

Looking for some ideas for Dockerfile syntax linters and how they integrate in your CI flow. Do you use one? Are you happy with it or do you see shortcomings in using it?

I've found hadolint ( [https://github.com/hadolint/hadolint](https://github.com/hadolint/hadolint) ) and am trying it out locally at the moment. Curious if you have experience with this one or with other Dockerfile linters.

Where do you integrate it into your CI? Local git-hook before pushing to repository, remote git-hook on PR or build stage in CI? Why?

https://redd.it/e9xwj1
@r_devops

Docker and Sonatype got acquired, what next?

Recently, Docker got acquired by Mirantis and Sonatype Nexus got acquired by a private equity firm. The future of these firms may not be the same and we cannot predict anything since the ownership has changed.

Looks like Docker has gone into the good hands, Mirantis helps companies run Kubernetes and OpenStack with ease and the addition of Docker surely feels like an enhancement in the cloud-native field. But it also concludes that Docker won’t be Docker anymore, like all acquisitions, strategic business objectives will change and this might also affect some microservices developers.

But when it comes to Sonatype Nexus, an equity firm buying it makes no sense to me as a developer.

What can be the future of container registries?

https://redd.it/e9j8vk
@r_devops

DB in containers

What are the pros and cons of running a DB inside a container ? Is it recommended for a production system ?

https://redd.it/e9zcx5
@r_devops

I have one month to prep for a mid/senior level Devops/full stack interview at Capital One

Has anyone gone through this? What was their focus? I am told it will be a full day of 5-7 interviews.

I have about 5 years experience, 2.5 in mobile app development, 2.5 in the systems engineering/devops space. I feel like I have a broad surface level knowledge of almost everything, but I don't know one thing particularly well.

My current goal is to review that Devops learning flowchart that's running around and fill in my gaps on that chart. I will probably practice a hackerrank problem every other day, as I know there will probably be at least one whiteboard session. I will probably review and buff up my AWS and infrastructure knowledge, as I can't currently do a VPC from memory.

What are on-site interviews for Devops like? Will I be asked to bring up a LAMP stack?

Really any general tips for an interview day like this would be appreciated.

​

Note to Mods: this is a repost, my other post was hidden for some reason

https://redd.it/e9zalm
@r_devops

Why Apps like Uber or Tinder need a lot of money to start? is the server cost high?

**Are server costs high? I'm asking to dev-ops people here because you are familiar with server usage and costs in general. I'm finishing to code my own Tinder app (it's for a specific niche, but maybe adoption grows a lot) because I don't have an initial investment like the successful known companies had maybe I'll fail. I'm not sure if I'm going to get money from my users so maybe I won't be able to pay for the server cost with my salary. I'm not looking to make profit with my project, I'm fine if I can pay for the server. I'm going to host it on AWS by the way.**

**I'm not looking for "the perfect answer" just what your dev-ops experience can say about the costs of hosting in general.**

https://redd.it/e9z8yp
@r_devops

Any advice on what's the best Scalable and Affordable database for a startup?

So I am developing an app like Spotify or Tidal, I am thinking about using either AWS/Digital Ocean for Blob storage (For music mp3 files) but would like to know how what would be the best database that's affordable, Scalable and allows data replication (i.e. Move all the data from one database into another). I welcome all opinions and suggestions.

https://redd.it/e9viwj
@r_devops

Simple explanation of what Hadoop is and how it works?

Sorry but I am not a backend expert but I do know the basics. So I stumbled upon something called Hadoop that is being used by big companies such as Spotify but I have searched google but I have not yet found a simple explanation about what it is and how it works.

https://redd.it/e9u01q
@r_devops

Free RevDeBug Test Suite License

Hello DevOps

I'm a network technician and won a license for RevDeBug program.

I wont be using it, so here is the key: E80217DCA5EC4F70

https://redd.it/ea3yfw
@r_devops

Consul KV or Vault KV?

So currently we have some microservices deployed with consul for service discovery and vault for a pki store. I'm not the devops man so I'm curious about both services kv stores. If I want to provide config values to a service, does it make more sense to use consuls kv store or vaults? And what is the difference in application between them?

https://redd.it/ea6dtw
@r_devops

Could I consolidate VPC stacks by importing a VPC value from another template?

I have to consolidate two vpcstacks...one is 3000+ lines, the other is 300+ lines. I did not create these templates, and they are not super modular...as a quick and dirty, could I import the 3000 line vpc template's vpcid into the smaller vpc template and call it a day? What would be the easiest way to do this? :) Thanks.

https://redd.it/ea5t4b
@r_devops

How do you deal with snacking at work, is it a problem ?

As Developers I know that it is not very easy to stay in shape and lose weight. Most people have one problem that can be difficult to deal with and that is having snacks around. I'd like to offer some tips that I personally use for this problem.

1. **Bring your own snacks that are healthy**
2. **Identify the times of the day where you get the hungriest and prone to snacking.** Schedule either a time for those particular times to go for a brief walk or eat healthy snacks that you bring to work that are filling (Oatmeal/fruit or a protein source is my favorite.)
3. **Get out of habit of going to the snack area.** Once you are in the habit of no longer going to the snack area, you will not be faced with this urgency. This will take couple weeks get used to. Make a commitment starting today and try to stay away for 2 weeks straight from the snack bar!
4. **Communicate to people around you** to stop offering snacks because you have decided to take care of your health! They might even hold you accountable and create more leverage!
5. **Implement a version of Intermittent fasting**. Once you decide that you won't eat until a certain period of time and the eating is just simply out of question, it will also mean that you won't be looking for snacks.
6. **Drink tea or coffee through out the day** (Tea is better since it doesn't have so much caffeine.) you will notice that it suppresses your appetite

**Also let me know if this is a challenge for you and what are some of the strategies you use ?**

https://redd.it/eabqr2
@r_devops

Any thoughts on New Relic One?

Sounds like it going to be the default launch page in early 2020. Anyone play around with it and have any thoughts?

https://redd.it/ea51dv
@r_devops