Questions tagged [cloud]

for questions about cloud computing: running servers or services in a virtualized environment that is usually run off-site by a third party.

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8
votes
7answers
2k views

Is there one website that contains all relevant DevOps news and gets updated on a daily basis?

I am looking for some DevOps news channel like https://nos.nl/teletekst#101 that shows the headlines of the Dutch news. I am aware of https://tweakers.net/ and github.com, but this does not contain ...
0
votes
0answers
23 views

How to host a Perl script as a web service?

I have a Perl script and want to run it as a web service so it can be called using a HTTP endpoint. The Perl script uses GNU Diffutils so I'm wondering the best way to accomplish this. My initial ...
0
votes
1answer
17 views

How to dynamically create digital ocean droplets without password change?

I am working on a web app where that I divided into two blocks: 1. One for front-end. 2. One for backend doingheavy computation which won't be used every time Both parts of the web service are hosted ...
1
vote
1answer
29 views

What considerations should be taken into account for a good log file format?

We have a practical question I struggle to answer : What is a good logfile schema? Here are the caveats: There are several workloads, each writing more than one log file Applications are on more ...
0
votes
0answers
73 views

Unable to import pyodbc in an Azure function

I have an Azure function which runs fine locally but when I run it after deploying to azure it gives an error: "No module named 'pyodbc'". Any help?
0
votes
1answer
67 views

Reset time vs alerting window size in alerting strategies for SLOs

In https://landing.google.com/sre/workbook/chapters/alerting-on-slos/#pros_and_cons_of_alerting_based_on_burn_r I don't understand how the reset time can be 58 min when the alerting window size is one ...
1
vote
2answers
53 views

What does 1 vcpu mean precisely/exactly?

When we are talking about "1 vcpu" in different cloud solutions: Q: What exactly does it mean? Ex.: if I will use a 10 vcpu machine for the same cpu intensive process (which only uses CPU) then I ...
0
votes
2answers
51 views

Is OpenStack the same type of software as Azure, AWS, etc.?

I'm not sure how to ask it. Is something like OpenStack the same thing as AWS and Azure, except it is Open Source? If I wanted to create an onsite cloud for a Production environment, can OpenStack (...
5
votes
2answers
71 views

Securing communication between cloud VMs without private networks. Any strategy besides building own VPN? Spiped?

I am working on an application that requires a number of different services (web application + database + worker queues, XMPP server for messaging, redis, central authentication via LDAP, etc). For my ...
0
votes
1answer
25 views

Is FaaS required to have an official “Cloud”?

I'm in the process of refining my DevOps skills, but my "Cloud" is more like a lot of scripted virtual machines and monitoring the system. For example, if I have Oracle VM Server, and I install ...
1
vote
0answers
24 views

Next “big thing” in the virtual infrustucture?

Are there actually some emerging but not hyped cloud technologies to watch for? I mean, cloud solutions we use have been there since some years, but as they came out, they had been around for some ...
0
votes
2answers
30 views

Any suggestion for a provider to deploy a first Dockerized application?

To conclude my Docker course, I would like to make my students deploying an app on some cloud provider. A priori, the deployment will be on a single host using docker-compose (i.e., no swarm, no ...
1
vote
3answers
61 views

What are the tools you recommend for deploying / automating / organizing vm in the private cloud

I manage a set of virtual servers in a private cloud on vSphere. In this private cloud we have several sets of servers that host several web applications such as: -Webpress web sites -Phone ...
0
votes
1answer
37 views

Is openstack public cloud like Google drive, aws where we can store data?? Or something else?

I am using cloudberry to backup data. There are lot of options where we can store data like Google drive , aws and also openstack. I got confused because I was thinking openstack as operating system ...
1
vote
1answer
86 views

Is there any latest technology which will replace Docker, Kubernetes in future? [closed]

What's the future of engineers starting career in tools like Docker, Kubernetes?
1
vote
2answers
74 views

When is it not appropriate to use serverless technology such as AWS Lambda?

With serverless computing using AWS lambda, Amazon(AWS) is taking the ownership of architecture, administration & deployment aspect of AWS services(VPC/EC2/ELB/AScaling/Rtables/SGroups/etc...) for ...
0
votes
1answer
20 views

Quest for a missing release of Apache Cloud Stack 4.7.1.3

Is there any public evidence of Apache Cloud Stack release 4.7.1.3? Namely, what I can find so far, there is only 4.7.1.1, but an instance I can observe reports to be a 4.7.1.3. See also: https://...
0
votes
1answer
32 views

Are there dialects of YAML or just differences in parsing it?

We use YAML in several frameworks to define types and structures for our deployments. I read an article about why some people don't like YAML and they stated that the parsing of YAML is very different ...
1
vote
0answers
20 views

How to confugure proxy for Python Apache Cloud Stack client?

For example in the requests library you can set proxy explicitely. With exoscale/cs (a Python client for Apache Cloud Stack) it does not work for me. Environment variables are set correctly to ...
4
votes
2answers
156 views

What is a “mesh”?

In this context and cloud computing, I read about "service mesh" and/or "serverless mesh" but I don't fully understand what it is. Can you explain?
0
votes
3answers
71 views

Availability/Reproducibility of Ubuntu Minimal as Docker image

While for Debian you find on Docker Hub "slim" distributions, it seems not the case with Ubuntu. Now there is a "minimal Ubuntu for public clouds" distro from Canonical, but I can find just cloud VM ...
2
votes
2answers
36 views

Identifying a benchmark to compare overall performance of VM virtualization vs hardware

Which performance index is most suitable to find out real performance of your VM limited by sharing and quotas? For example, if you have a physical server with 4 cores and 16 GB RAM, its performance ...
2
votes
2answers
74 views

How to install a private managed Kubernetes on-premise?

Where do you start in case you need something like a managed Kubernetes solution to setup a multi-tenant orchestration solution on-premises? Any entity with its own container infrastructure has an ...
7
votes
6answers
779 views

Cheapest and easiest way to run a periodic Docker process

I have a dockerized Python process that a client would like to run once or twice a month. It calls a number of Google APIs and stores the results in a Google Sheet. It does not accept network requests....
0
votes
1answer
28 views

What are best practices for securing connections between CI and artifact managers in the cloud?

Bitbucket, github, circleci are examples of Continuous Integration and Continuous Deployment (CI/CD) tools in the cloud. In the past, a lot of companies ran all services, like CI/CD and artifact ...
-3
votes
1answer
329 views

How much it will cost for AWS for deploying a inventory management application [closed]

I am developing an inventory management application i want to use AWS EC2 . which will have 10-15 users and storage about 2GB .as a newbie i could not understand the pricing can somebody help me how ...
1
vote
1answer
22 views

simulate SQL DB usage pattern of a typical cloud native web app with sysbench?

As far as I understand sysbench is for bencharking / test max. performance of a database server. I wish to simulate DB usage pattern of a typical cloud native web app (Twelve-Factor App). Is this ...
3
votes
1answer
36 views

Is it possible to securely delete a file from a virtual disk in a cloud provider?

Considering that virtual hard drives are generally formatted using something like ext3 that abstracts away from the underlying block device, which in and of itself is an abstraction over the top of a ...
3
votes
1answer
231 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 ...
7
votes
3answers
291 views

Running unmanaged Hardware Security Modules (HSMs) in the Cloud

I have to admit to never having asked, or been asked, the question if it is possible to have a Hardware Security Module in a public cloud, by which I mean Google, Amazon or Azure. Has anyone found ...
5
votes
1answer
72 views

Large number of host emulation

What would be the best way to emulate (or really to instantiate) a large number of hosts / virtual machines / docker containers in the cloud? Assume I want to run a scenario where 10,000 hosts are ...
5
votes
1answer
256 views

Geographically, where are the travis-ci jobs run?

Where are the travis-ci servers located? Does travis-ci leverage AWS EC2?
5
votes
2answers
156 views

How to shut down a stateless app gracefully?

Quote from CF training on twelve-factor app’s processes are disposable: Apps should also shut down gracefully (but can also die unexpectedly). Cloud Foundry stops routing traffic nearly ...
5
votes
1answer
65 views

Defined start sequence of containers

AFAIK you cannot influence the order how Docker Swarm starts containers for services. Is that possible with: Mesos? K8s (Kubernetes)? Rancher? Other? This question is not about specific ...
4
votes
1answer
411 views

CI/CD with a GPU cluster

With typical continuous integration environments, you configure an environment capable to execute compilation and test batches (agent, slave..) coordinated by a scheduler (master, server..) But what ...
2
votes
1answer
767 views

openstack instance metadata

With Openstack Nova CLI I could set or get instance metadata with nova meta set/get ... but with the openstack "all-in-one" CLI that option does not exist. Is it possible to work with instance ...
4
votes
1answer
85 views

How can I calculate costs of deploying 1000 instances of Drupal?

What are the things that should I investigate for making an estimate of the cost of deploying 1000 instances of Drupal, for example? I was thinking in: Database space Database usage (in ops/second? ...
19
votes
4answers
3k views

How can I experiment with Cloud (Azure, AWS, Google, etc) without going broke?

Cloud technologies are very hot right now, but they can be expensive. What are the best strategies for learning/trying cloud services without racking up a huge bill?
10
votes
2answers
2k views

How to avoid “retry storms” in distributed services?

A "retry storm" is caused when clients are configured to retry a set number of times before giving up, a retry policy is necessary because of packets loss will occur in normal operation of a service. ...
28
votes
2answers
7k 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 ...