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Questions tagged [devops]

This tag is for programming questions about DevOps ("development" and "operations"), which is a software development method that stresses communication, collaboration, integration, automation, and measurement of cooperation between software developers and other IT professionals. Non-programming related questions should be asked on the DevOps Stack Exchange site.

DevOps acknowledges the interdependence of software development, quality assurance, and IT operations, and aims to help an organization rapidly produce software products and services and to improve operations performance.

Venn diagram

DevOps integration targets product delivery, quality testing, feature development, and maintenance releases in order to improve reliability and security and provide faster development and deployment cycles. Many of the ideas (and people) involved in DevOps came from the enterprise systems management and Agile software development movements.

The adoption of DevOps is being driven by factors such as:

  • Use of agile and other development processes and methodologies
  • Demand for an increased rate of production releases from application and business unit stakeholders
  • Wide availability of virtualized and cloud infrastructure from internal and external providers
  • Increased usage of data center automation and configuration management tools

The goals of the DevOps workflow are best described as The three ways of DevOps

  1. Work flows from Business->Development->Operations->Customer as fast possible
  2. Increasing the feedback loops from Business<-Development<-Operations<-Customer
  3. Using fast feedback to build a culture of continuous experimentation and learning

While programming questions about DevOps are on-topic here, other questions should be asked on the DevOps Stack Exchange site.

Dev ops: WikiPedia

What is DevOps?

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5190 questions
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Use Ansible to remove images based on the label using docker_prune

I would like to remove all docker images, which are not labeled with 2 or more labels. Since Ansible 2.8 there is a docker_prune command, which I would like to use in combination with the images_filter options like this: docker_prune: debug: yes …
Alucard
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Can I copy files in origin branch directly without making local working copy

We are using azure devops git as our repository and after each release, we need to copy (without deleting) one of the file from one folder to another with in the same branch. I am wondering if there is any way i can achieve this without having to…
Neeraj
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Best practice for starting a service using docker images in Kubernetes cluster

What is the best way to start docker container in Kubernetes cluster? Is it better to start the service in the docker container itself or pass the command when creating Kubernetes pod with the command option? The image I am working with has…
Mikias Abebe
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Flask app isn't updating the front end templates

I have a flask app which has some front end static files (in React). However whenever I make changes to the HTML, it doesn't reflect it on the browser. I pushed it to my github and everything is correct on my github but when I go to the browser, it…
Kaisin Li
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How to make Zalenium work with AWS Fargate?

The issue I would like to use Zalenium in a container using AWS Fargate. However, to do so, we have to pull two images: Zalenium and Selenium. Indeed, during its process, Zalenium creates containers using Selenium image. Therefore it needs to find…
Eugenieo
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Azure Pipeline for .NET Core 3.0 P9 does not work

I have a simple Blazor project using 3.0 P9 which builds fine on my local machine, checked it into azure devops, created a pipe getting…
Zoinky
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If we Installed redgate tool "Schema Compare of Oracle" on a shared location

If we Installed Redgate tool "Schema Compare of Oracle" on a shared location, Can we access "SCO.exe" Command line from a different Machine or Network? If Yes, Can we run multiple instances at the same time? If we have more than on Developer than…
S S
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How to "rsync" docker image to remote host over ssh?

In a deployment bash script, I have two hosts: localhost, which is a machine, that typically builds docker images. $REMOTE_HOST, which is believed to be some production web server. And I need to transfer locally built docker image to $REMOTE_HOST,…
xakepp35
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TFS 2018 - Can't use Environment.Name within Release

When doing a Release and trying to use the variable Environment.Name I get the error: ##[error]Environment.Name : The term 'Environment.Name' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the…
Post Impatica
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.env file Flaged as not being an object when deploying trough DevOps CD pipeline

I have just created a .env file to separate my environment variables from my main docker-compose file. I can run this document on my local machine fine with no errors or issues but when I try run it through my CD pipeline I get the following…
Gizmo0
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Why are ElasticBeanstalk .ebextensions ignored when using AWSJavaScriptSDK?

When using the AWS JavaScript SDK to update an ElasticBeanstalk environment my .ebextensions/* are being ignored. I'm uploading the application source bundle as a .zip file to S3, which triggers a Lambda to deploy a new application version using…
o1y
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How to deploy docker container with azure devops in Kubernetes?

I'm discovering Kubernetes and Docker. I read lot of tutorials to deploy a DotNetCore App with Azure Devops Docker container and Kubernetes. I Restore, Build, Test, and Publish with Azure devops and i copy my output files in my docker image. By the…
TangoCharly
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MSSQL backup strategy for Disaster Recovery

Our database is MSSQL and we are currently using High Availability Group with fail over in multiple node cluster so the idea of redundancy and backup is already there. All of our current servers are in the same location; imagine a scenario where an…
Fylix
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TFS 2017 - Run powershell script from TFS server, not agent

Is there a way to run a powershell script from the actual TFS server during a release? I am running the build agent in a docker container and it's not joined to the domain so wmi won't allow the windows agent in the docker container to stop the app…
Post Impatica
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Is there way to use environment variables in build pipelines for scheduled builds?

schedules: - cron: "${cron_schedule_value}" displayName: Test branches: include: - master always: true I'd like to use something like this but didn't find examples. Is it possible to use env variables as cron value?
alexche8
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