I want to have a boolean passed into a task in the Azure DevOps YAML build if a variable is not populated.

I want to set a variable during build, which I can then check during release. Below is what I have tried after doing my research.

I want to set a variable during build, which I can then check during release. Below is what I have tried after doing my research.

I want to set a variable during build, which I can then check during release.

I have 3 environments A, b & C

I have a main pipeline and a template file. The main pipeline calls the template. The template has 2 jobs that passes a variable from one job to the other. If I have this in just the main pipeline file without the template file, it successfully passes the variable from job to job.

I know that it is possible to use a yaml template from a different organization using this but, how can I enforce it as a required yaml template on a service connection and/or a variable group? Seems that in the required yaml template dialogue you can only specify templates in the same organization:

The following pipeline, with a each .. in .. iteration, the jobs will run in parallel.

Have the following structure:

Can I dynamically iterate steps over a set variable with Azure Devops pipelines?