Skip to main content

Azure Pipelines - A template expression is not allowed in this context

In my attempt to further optimize our deployment process, I tried to move most of the pipeline logic to a YAML template. This is how the template looked like(I simplified it a little bit):

However when I tried to create a pipeline using this template I got the following error message:

/cd-template.yml (Line: 14, Col: 14): A template expression is not allowed in this context

The problem is that I’m trying to use a template expression inside a pipeline resource.

First I was thinking I did something wrong but then I found the following announcement in the release notes:

Previously, compile-time expressions (${{ }}) were not allowed in the resources section of an Azure Pipelines YAML file. With this release, we have lifted this restriction for containers. This allows you to use runtime parameter contents inside your resources, for example to pick a container at queue time. We plan to extend this support to other resources over time.

As stated above, compile time expressions are not allowed in the resources section. With the change above it becomes possible but only when using the container resource.

So no luck for me! Hopefully this will change in future versions…

Labels:

Popular posts from this blog

DevToys–A swiss army knife for developers

As a developer there are a lot of small tasks you need to do as part of your coding, debugging and testing activities.  DevToys is an offline windows app that tries to help you with these tasks. Instead of using different websites you get a fully offline experience offering help for a large list of tasks. Many tools are available. Here is the current list: Converters JSON <> YAML Timestamp Number Base Cron Parser Encoders / Decoders HTML URL Base64 Text & Image GZip JWT Decoder Formatters JSON SQL XML Generators Hash (MD5, SHA1, SHA256, SHA512) UUID 1 and 4 Lorem Ipsum Checksum Text Escape / Unescape Inspector & Case Converter Regex Tester Text Comparer XML Validator Markdown Preview Graphic Color B
Read more

Help! I accidently enabled HSTS–on localhost

I ran into an issue after accidently enabling HSTS for a website on localhost. This was not an issue for the original website that was running in IIS and had a certificate configured. But when I tried to run an Angular app a little bit later on http://localhost:4200 the browser redirected me immediately to https://localhost . Whoops! That was not what I wanted in this case. To fix it, you need to go the network settings of your browser, there are available at: chrome://net-internals/#hsts edge://net-internals/#hsts brave://net-internals/#hsts Enter ‘localhost’ in the domain textbox under the Delete domain security policies section and hit Delete . That should do the trick…
Read more

Azure DevOps/ GitHub emoji

I’m really bad at remembering emoji’s. So here is cheat sheet with all emoji’s that can be used in tools that support the github emoji markdown markup: All credits go to rcaviers who created this list.
Read more