Demands - Azure Pipelines (2024)

  • Article

Azure DevOps Services | Azure DevOps Server 2022 - Azure DevOps Server 2019 | TFS 2018

Note

In Microsoft Team Foundation Server (TFS) 2018 and previous versions,build and release pipelines are called definitions,runs are called builds,service connections are called service endpoints,stages are called environments,and jobs are called phases.

Use demands to make sure that the capabilities your pipeline needs are present on the agents that run it. Demands are asserted automatically by tasks or manually by you.

Note

Demands and capabilities are designed for use with self-hosted agents so that jobs can be matched with an agent thatmeets the requirements of the job. When using Microsoft-hosted agents, you select an image for the agent thatmatches the requirements of the job, so although it is possible to add capabilities to a Microsoft-hosted agent, you don't needto use capabilities with Microsoft-hosted agents.

Task demands

Some tasks won't run unless one or more demands are met by the agent. For example, the Visual Studio Build task demands that msbuild and visualstudio are installed on the agent.

Manually entered agent demands

You might need to use self-hosted agents with special capabilities. For example, your pipeline may require SpecialSoftware on agents in the Default pool. Or, if you have multiple agents with different operating systems in the same pool, you may have a pipeline that requires a Linux agent.

  • YAML
  • Classic

To add a single demand to your YAML build pipeline, add the demands: line to the pool section.

pool: name: Default demands: SpecialSoftware # exists check for SpecialSoftware

Or if you need to add multiple demands, add one per line.

pool: name: MyPool demands: - myCustomCapability # exists check for myCustomCapability - Agent.Version -equals 2.144.0 # equals check for Agent.Version 2.144.0

Note

Checking for the existence of a capability (exists) and checking for a specific string in a capability (equals) are the only two supported operations for demands.

For more information and examples, see YAML schema - Demands.

YAML Pipelines are supported in Azure DevOps Server 2019 and higher.

Register each agent that has the capability.

  1. In your web browser, navigate to Agent pools:

    1. Choose Azure DevOps, Organization settings.

      Demands - Azure Pipelines (1)

    2. Choose Agent pools.

      Demands - Azure Pipelines (2)

    1. Choose Azure DevOps, Collection settings.

      Demands - Azure Pipelines (3)

    2. Choose Agent pools.

      Demands - Azure Pipelines (4)

    1. Choose Azure DevOps, Collection settings.

      Demands - Azure Pipelines (5)

    2. Choose Agent pools.

      Demands - Azure Pipelines (6)

    1. Navigate to your project and choose Settings (gear icon) > Agent Queues.

      Demands - Azure Pipelines (7)

    2. Choose Manage pools.

      Demands - Azure Pipelines (8)

  2. Navigate to the capabilities tab for the agent:

    1. From the Agent pools tab, select the desired agent pool.

      Demands - Azure Pipelines (9)

    2. Select Agents and choose the desired agent.

      Demands - Azure Pipelines (10)

    3. Choose the Capabilities tab.

      Demands - Azure Pipelines (11)

      Note

      Microsoft-hosted agents don't display system capabilities. For a list of software installed on Microsoft-hosted agents, see Use a Microsoft-hosted agent.

    1. From the Agent pools tab, select the desired pool.

      Demands - Azure Pipelines (12)

    2. Select Agents and choose the desired agent.

      Demands - Azure Pipelines (13)

    3. Choose the Capabilities tab.

      Demands - Azure Pipelines (14)

    1. From the Agent pools tab, select the desired pool.

      Demands - Azure Pipelines (15)

    2. Select Agents and choose the desired agent.

      Demands - Azure Pipelines (16)

    3. Choose the Capabilities tab.

      Demands - Azure Pipelines (17)

    Select the desired agent, and choose the Capabilities tab.

    Demands - Azure Pipelines (18)

  3. Add something like the following entry:

First boxSecond box
SpecialSoftwareC:\Program Files (x86)\SpecialSoftware

Tip

For classic non-YAML build definitions, when you manually queue a build you can change the demands on that run.

Demands - Azure Pipelines (2024)

FAQs

What is demands in pipeline? ›

Use demands to make sure that the capabilities your pipeline needs are present on the agents that run it. Demands are asserted automatically by tasks or manually by you.

Why to use Azure pipelines? ›

Why should I use Azure Pipelines? Azure Pipelines provides a quick, easy, and safe way to automate building your projects with consistent and quality code that's readily available to users. Use Azure Pipelines to support the following scenarios: Works with any language or platform.

How many types of pipelines are there in Azure? ›

There are two main options for operating Azure Pipelines—you can define pipelines using YAML code or the classic UI.

What does demand mean for a project? ›

Demand refers to that quantity of a commodity that a consumer is willing and able to purchase at various prices and particular period of time.

What is the difference between demand pull and supply push pipelines? ›

An additional component of the strategic value of assets is determined by whether a pipeline is supply push or demand pull. Supply push pipelines provide takeaway from a specific basin, while demand pull pipelines feed a demand center, such as a refinery.

Which are the three main types of pipelines? ›

Essentially, three major types of pipelines occur along the transportation route: gathering lines, the interstate pipeline, and the distribution system.

What are the 2 types of pipelines available? ›

Declarative versus Scripted Pipeline syntax

Declarative and Scripted Pipelines are constructed fundamentally differently.

What are the three types of pipelines? ›

There are essentially three major types of pipelines along the transportation route: gathering systems, transmission systems, and distribution systems.

What is PR in Azure pipeline? ›

Pull requests (PRs) are a way to change, review, and merge code in a Git repository on Azure Repos. PRs can come from branches within the same repository or from branches in forks of the repository. Teams use PRs to review code and give feedback on changes before merging the code into the main branch.

What is PR in Yaml file? ›

A pull request trigger specifies which branches cause a pull request build to run.

How do you trigger an Azure pipeline? ›

Stages filters for pipeline resource triggers requires Azure DevOps Server 2020 Update 1 or greater. You can trigger your pipeline when one or more stages of the triggering pipeline complete by using the stages filter. If you provide multiple stages, the triggered pipeline runs when all of the listed stages complete.

What language is used in Azure Pipelines? ›

Azure Pipelines is a cloud service that is useful in automating build and testing the code project. It is implementable to any programming language or type of project. It supports languages such as C#, C++, Go, Java, Java Script, PHP, Python, Ruby, YAML and many more.

What are the limitations of Azure DevOps pipeline? ›

Azure DevOps Services limits each organization to 1000 projects per organization, an increase over the previous limit of 300 projects. Above 300 projects certain experiences, such as connecting to a project from Visual Studio, may start to degrade.

What is the difference between App Center and Azure Pipelines? ›

App Center is more of a build and release tool that is catered specifically towards iOS, Android, Windows, and macOS applications. Whereas, Azure DevOps is a full-featured project management and code repository hosting platform that can be used for any kind of development project – be it mobile, web or anything else.

What are the four types of demand? ›

The different types of demand are as follows:
  • i. Individual and Market Demand: ...
  • ii. Organization and Industry Demand: ...
  • iii. Autonomous and Derived Demand: ...
  • iv. Demand for Perishable and Durable Goods: ...
  • v. Short-term and Long-term Demand:

What is an example of a demand? ›

Demand is a consumer's desire and willingness to buy a product at a given price. For example, if the price increases, the customer might hesitate, and the willingness to buy decreases.

What are different types of demand? ›

7 types of demand
  • Joint demand. Joint demand is the demand for complementary products and services. ...
  • Composite demand. Composite demand happens when there are multiple uses for a single product. ...
  • Short-run and long-run demand. ...
  • Price demand. ...
  • Income demand. ...
  • Competitive demand. ...
  • Direct and derived demand.
Sep 6, 2022

What are 3 basic differences between demand and supply? ›

Comparison Chart
Basis for ComparisonDemandSupply
Determinants other than priceTaste and PreferencePrice of the Resources and other inputs
Number of ConsumersNumber of Producers
Price of Related GoodsPrice of factors of production
Consumer IncomeTaxes and Subsidies
7 more rows

What is the difference between Azure pipelines and release pipelines? ›

So what is the difference between Azure Pipelines and release pipelines? Well, a release represents continuous delivery in Azure DevOps. A pipeline usually takes code, builds it, tests, and creates an artifact. Release pipelines takes the artifact and deploys it.

Which is worse demand pull or cost push? ›

Measuring Inflation

Therefore Cost-Push inflation is generally considered worse for the macro-economy. By measuring price level on the vertical axis and real GDP on the horizontal axis we can use the aggregate supply and demand graph to see the effects of cost-push and demand-pull inflation.

What are 5 stage pipelines? ›

A five-stage (five clock cycle) ARM state pipeline is used, consisting of Fetch, Decode, Execute, Memory, and Writeback stages.

What are 3 important stages in pipeline? ›

ARM7 Three-stage pipeline. Fetch loads an instruction from memory. Decode identifies the instruction to be executed. Execute processes the instruction and writes the result back to a register.

What is the largest pipeline system? ›

Colonial consists of more than 5,500 mi (8,850 km) of pipeline, originating in Houston, Texas, on the coast of the Gulf of Mexico and terminating at the Port of New York and New Jersey.

What are the two types of pipeline in DevOps? ›

Components of a DevOps Pipeline

Continuous Integration and Continuous Delivery: These two components are typically mentioned together, usually referred to as CI/CD or a CI/CD pipeline.

What is the alternative to pipelines? ›

Top 10 Alternatives to Azure Pipelines
  • GitLab.
  • Red Hat Ansible Automation Platform.
  • Octopus Deploy.
  • CircleCI.
  • Jenkins.
  • GitHub.
  • Copado CI/CD.
  • CloudBees.

What are the 4 stages of pipeline? ›

A pipelined processor uses a 4-stage instruction pipeline with the following stages: Instruction fetch (IF), Instruction decode (ID), Execute (EX) and Writeback (WB).

What are pipelines in DevOps? ›

A DevOps pipeline is a set of automated processes and tools that allows both developers and operations professionals to work cohesively to build and deploy code to a production environment.

How many different types of pipelines are there? ›

There are two types of oil pipeline: crude oil pipeline and product pipeline. While the former carries crude oil to refineries, the latter transports refined products such as gasoline, kerosene, jet fuel, and heating oil from refineries to the market.

Can a Azure pipeline have multiple triggers? ›

A: Yes, you can configure multiple triggers for a single pipeline. For example, you can configure a pipeline to run on a schedule and also run when changes are pushed to the repository.

What are the stages of Azure pipelines group? ›

You can organize the deployment jobs in your release pipeline into stages. Stages are the major divisions in your release pipeline: "run functional tests", "deploy to pre-production", and "deploy to production" are good examples of release stages. A stage in a release pipeline consists of jobs and tasks.

What is the difference between Travis CI and Azure pipelines? ›

There are many differences between Travis and Azure Pipelines, including: Travis builds have stages, jobs and phases, while Azure Pipelines has steps that can be arranged and executed in an arbitrary order or grouping that you choose.

What are the different types of pipeline triggers? ›

Currently, the service supports three types of triggers: Schedule trigger: A trigger that invokes a pipeline on a wall-clock schedule. Tumbling window trigger: A trigger that operates on a periodic interval, while also retaining state. Event-based trigger: A trigger that responds to an event.

How do I create a PR in Devops? ›

Create a PR from the Pull requests page
  1. On the Repos > Pull requests page, select New pull request at upper right.
  2. Select the branch with the changes and the branch you want to merge the changes into, such as the main branch.
  3. Enter your PR details and create the PR.
Oct 31, 2022

What are the three lines in YAML file? ›

YAML uses three dashes (“---”) to separate directives from document content. This also serves to signal the start of a document if no directives are present.

How does Azure pipelines connect to Azure? ›

Choose + New service connection and select Azure Resource Manager. Select the Managed Identity Authentication option. Enter a user-friendly Connection name to use when referring to this service connection. Select the Environment name (such as Azure Cloud, Azure Stack, or an Azure Government Cloud).

How do I manually run a pipeline in Azure? ›

To trigger the pipeline manually:
  1. Go to Azure Devops and select the project for your deployment.
  2. Click Pipelines.
  3. Click the pipeline. For example, the infrastructure pipeline.
  4. Click Run Pipeline. Note. ...
  5. In the Run Pipeline dialog click Run. Azure Devops will queue the job and start the redeployment.
Apr 29, 2023

How do I migrate pipelines in Azure? ›

Sign in to your organization ( https://dev.azure.com/{yourorganization} ) and select your project.
  1. Select Pipelines, and then New pipeline.
  2. Select the location for your source code as either GitHub or Azure Repos Git.
  3. Select a repository.
  4. On the Configure your pipeline page, select Starter pipeline.
  5. Select Save and run.
Oct 4, 2022

What does it mean in pipeline? ›

If something is in the pipeline, it has already been planned or begun. Already in the pipeline is a 2.9 per cent pay increase for teachers. Synonyms: on the way, expected, coming, close More Synonyms of in the pipeline.

What does pipeline mean in finance? ›

In finance, the term pipeline is used to describe progress toward a long-term goal that involves a series of discrete stages. For example, private equity (PE) firms will use the term “acquisition pipeline” to refer to a series of companies they have flagged as potential acquisition targets.

What does pipeline mean in purchasing? ›

A sales pipeline is a visual representation of sales prospects and where they are in the purchasing process. Pipelines also provide an overview of a sales rep's account forecast and how close the rep is to making quota, as well as how close a sales team as a whole is to reaching quota.

What does pipeline mean in shipping? ›

A pipeline is a system of pipes used to transport liquids, gases, or movable solids from one place to another.

What is pipeline and how it works? ›

Pipelining is a technique where multiple instructions are overlapped during execution. Pipeline is divided into stages and these stages are connected with one another to form a pipe like structure. Instructions enter from one end and exit from another end. Pipelining increases the overall instruction throughput.

Why is it called a pipeline? ›

The name "pipeline" comes from a rough analogy with physical plumbing in that a pipeline usually allows information to flow in only one direction, like water often flows in a pipe.

What is pipelining give an example? ›

Pipelining is the process of storing and prioritizing computer instructions that the processor executes. The pipeline is a "logical pipeline" that lets the processor perform an instruction in multiple steps. The processing happens in a continuous, orderly, somewhat overlapped manner.

What does pipeline mean in project? ›

What is a pipeline in project management? In project management, a pipeline is a tool that enables managers to monitor the status of all current projects in a single window. PMs can use this detailed overview to quickly prioritize high-impact projects and handle any hurdles along the way.

What does pipeline mean in companies? ›

What is a Pipeline? A pipeline is a term, which refers to prospects or deals lined up to meet the revenue targets of a company. For example, a sales pipeline shows the number of deals lined up for closure in a month, a quarter, or a year.

What is pipeline and why is it important? ›

Pipelines transport energy safely

Networks of large transmission pipelines are energy highways. Pipelines take both natural gas and oil over vast distances -- from often-remote locations to the populated places where we need the products.

What is a pipeline DevOps? ›

A DevOps pipeline is a set of automated processes and tools that allows both developers and operations professionals to work cohesively to build and deploy code to a production environment.

What does pipeline mean in software development? ›

A pipeline is a process that drives software development through a path of building, testing, and deploying code, also known as CI/CD. By automating the process, the objective is to minimize human error and maintain a consistent process for how software is released.

What is a pipeline in AWS? ›

AWS Data Pipeline is a web service that helps you reliably process and move data between different AWS compute and storage services, as well as on-premises data sources, at specified intervals.

What is pipeline in Azure data Factory? ›

A pipeline is a logical grouping of activities that performs a unit of work. Together, the activities in a pipeline perform a task. For example, a pipeline can contain a group of activities that ingests data from an Azure blob, and then runs a Hive query on an HDInsight cluster to partition the data.

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