Questions tagged [architecture]

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1answer
24 views

Scale up pods of k8s deployment across spot and dedicated instances

i need to deploy a k8s deployment to be stretched across two kinds of nodes, dedicated and spot nodes. The end-goal is to have deployment which has some pods on dedicated nodes, but when scaled uses ...
4
votes
1answer
86 views

EC2 EBS Free Tier - Is Storage Reusable?

Can I delete an EC2 instance and start off from scratch on my EBS free tier usage? For instance, I was running a Red Hat server with 10 GB of EBS being used. However, I deleted that EC2 within a few ...
5
votes
1answer
381 views

What are DevOps & Ops user stories, or elements in scrum context?

What type of user stories should Operations write down while being asked to be a stakeholder in a scrum project? Following this template: "As Operations engineer, I want to.. in order to.."?! My ...
3
votes
1answer
78 views

Provide customers with access to Azure Container Registry

I'm using Azure Container Registry for private Docker images. I want to let around 500 customers pull images and use the Docker V2 HTTP API to read metadata. Service Principals are one way to go ...
0
votes
1answer
42 views

Is there a 5$-30$ IaaS that supports some rolling-release distro? [closed]

Is there a 5$-30$ IaaS that supports some rolling-release distro? I consider a rolling-rlease OS (like ArchLinux) upon non rolling ones or at least upon a rolling-combo such as a rolling Win10 + ...
7
votes
2answers
223 views

Is this an appropriate architecture, or can improvements be made?

Due to a combination of business/enterprise requirements and our architect's preferences we have arrived at a particular architecture that seems a bit off to me, but I have very limited architectural ...
4
votes
2answers
2k views

How to add rules to Kubernetes NGINX Ingress controller from different yml definitions?

I'm trying to implement a Kubernetes cluster with a fanout pattern using an NGINX Ingress which routes traffic on multiple different hosts and paths to different microservices. The code for each ...
2
votes
0answers
33 views

Is this a robust implementation of database encryption at rest? [closed]

I am looking forward to implement encryption at rest for two+ SQL database servers (Linux). My goal is (obviously) to avoid storing the clear encryption key on the server or store it in a well-known ...
4
votes
1answer
127 views

Microservices terminology i.e. distinguishing between “core ” and “other service instances”

In a standard cloud based microservice application, there could be two main categories of microservices: core services such as service registry & discovery, api-gateway, load-balancer etc. ...
5
votes
1answer
72 views

What are Design Patterns for creating images?

In Object Oriented Programming (OOP) there are Design Patterns (DP). DP are best practices for tackling certain problems. For example, a singleton is acceptable to be used in a logger class. What ...
3
votes
1answer
10k views

In ansible how to select specific tasks in a role according to the playbook or a more general parameter?

My understanding of Ansible roles is that they are the unit of reusability when implementing processes using Ansible, similarly to what a class or a package is in some computer languages. It ...
9
votes
3answers
2k views

How should GCP projects be organized? [closed]

I have recently inherited the previous director of devops duties in managing a transition from Heroku/AWS to GCP. I'm wondering what is best practice for organizing projects in GCP. Should the be ...
3
votes
1answer
483 views

availability calculation of a azure service fabric stateful application

I have looked at the question and answer in How do you calculate the compound Service Level Agreement (SLA) for cloud services? I have a service fabric application which has a stateful service which ...
5
votes
2answers
1k views

Service backend/frontend in one or two containers?

Imagine in your stack you have RESTful services which also provide some rudimentary frontends, mostly for admin/other tech user use. Do you include the UI inside the container or are these two ...
10
votes
2answers
3k views

Is it ok to have a Jenkins Server without slave node?

In my team we have one Jenkins server with one master node & one slave node in the same server. We use Jenkins Pipelines and surround everything with node{}. In a colleague's team I have seen ...
1
vote
1answer
345 views

How should I separate micro service modules for the message part(posts, reply, private) of a social network?

I have designed different part of social networking system using micro service and I have reached to the message part of the system. Messages can be private messages (maybe a separate module), the ...
1
vote
1answer
172 views

Limits of a singular Docker Swarm stack

Normally, the example you start with Docker introduce environment to right more or less one app - frontend, backend, something else.. Would you put all containers of a larger app (20-30 containers ...
46
votes
3answers
25k views

How do you calculate the compound Service Level Agreement (SLA) for cloud services?

Cloud services hosted by Amazon Web Services, Azure, Google and most others publish the Service Level Agreement, or SLA, for the individual services they provide. Architects, Platform Engineers and ...
10
votes
1answer
955 views

Should I use multiple beats input in Logstash?

After some researches around the beats input plugin and specially this rewrite I wonder if I should use only one beat input or multiples to handle multiples entry types. I'll have events coming from ...
14
votes
2answers
376 views

What is a good logging practice for distributed tasks?

I have the following setting: Create multiple workers, do a computation and terminate them after the computation is done. So, every-time it’ll be a different instance running the task, so each ...
16
votes
3answers
6k views

What are the pro and cons of SnowFlakes Servers, Phoenix Servers and Immutable Servers?

I'm curious about a matrix like comparison on security/ease of management/forensic ability for each type of server. I may forget some more key features of each type also. I've a general idea about ...