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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14 views

Remove members from Google bucket policy

I want to remove service accounts from google cloud bucket policies. As a start, I used the example provided at the GCP examples repo: here. However, the service accounts remain and the policy is ...
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12 views

Load Balancers with different droplets

I recently learned about the concept of load balancer, and I was not able to answer this (perhaps silly) question: Does it make any sense to load balance between droplets containing different server ...
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1answer
54 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 ...
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2answers
49 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 ...
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2answers
49 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 (...
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2answers
57 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 ...
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1answer
20 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 ...
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0answers
23 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 ...
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10 views

Application monitoring on cloud foundry

On Pivotal cloud foundry, cf env <app_name> gives JSON data about the environment of each app deployed on bosh instance For example: On every cf push with updated manifest.yml that has env: ...
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2answers
28 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 ...
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73 views

What is Amazon's Borg?

I know that Kubernetes was inspired by software called Borg used internally at Google. Is there a name for what Amazon AWS uses internally to manage its hardware resources as internal platform?
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3answers
59 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 ...
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1answer
29 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 ...
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1answer
71 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?
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2answers
70 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 ...
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1answer
12 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://...
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1answer
31 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 ...
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18 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 ...
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28 views

Tooling to get AWS STS credentials with an MFA device and a SAML identity provider

A little bit exotic topic and quite many abbreviations. The background is here that you want to use AWS federated identity management i.e. you can use your enterprise identity management system as ...
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2answers
123 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?
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30 views

Open source private cloud metadata service repository

I was wondering if anyone has come across an open source metadata service repository that you can run on-premise to facilitate private cloud deployments. I've been Googling around about this but I ...
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3answers
51 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 ...
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10 views

Mocking CloudStack API

Is it anyhow possible to have a mock interface for the Apache Cloud Stack API? For example, in this bug report for Python Cloud Stack client I test an SSH key upload to CloudStack; a mock could help ...
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2answers
35 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 ...
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2answers
68 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 ...
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6answers
613 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....
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1answer
25 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 ...
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1answer
283 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 ...
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1answer
21 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
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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
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1answer
151 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
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3answers
253 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
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1answer
71 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
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1answer
180 views

Geographically, where are the travis-ci jobs run?

Where are the travis-ci servers located? Does travis-ci leverage AWS EC2?
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2answers
137 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
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1answer
64 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
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1answer
377 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
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1answer
644 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
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1answer
84 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? ...
18
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4answers
2k 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?
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2answers
1k 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. ...
26
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2answers
4k 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 ...