We use gitlab internally for our pipelines and I've been trying to create a CI/CD pipeline for a couple of our FME Server based products. It hasn't been very easy to be honest but does work...but was pretty hacky.
You wont find a definitive guide here as it's really tricky to work with FME and git. Every time you save a workspace it gets changed significantly so the idea of merging changes across multiple branches doesn't really work. This is fine if you are working on your own workspaces, however, as soon as you make a two branches and make different modifications you run into trouble trying to merge them.
I have heard that in FME 2022 there is a new workspace change detection tool where you can perform a visual review of changes - this is a big step in the right direction but still doesn't solve the issue of working across multiple branches as far as I can tell.
As far as CI/CD goes I guess it depends a lot on what you're looking to achieve. For us we deliver several components including manuals, formats, custom transformers and an FME Server Project with it's own set of components like publishers etc. Each project component is stored as a JSON file accessible by the build pipeline.
For automatic versioning in the workspace(s) I found it pretty tricky. I've created a private parameter which I tick each time a new build is made but it's very hacky.
In the pipeline I essentially use a workspace to build the FME Server project using the required components with the FME Server REST API. The project is then imported into a fresh FME Server docker instance where I can make calls REST called to perform various automated tests.
FME Server does have some built mechanisms to connect to git for version, however, it's only for workspaces really and not for projects as far as I can tell: https://docs.safe.com/fme/html/FME_Server_Documentation/WebUI/Version-Control.htm
I've submitted this CI/CD stuff as an abstract for the UC this year because I'm really interested to see how others are doing it.
In 2017 there was this talk which is pretty interesting: https://www.safe.com/presentations/working-with-fme-in-an-agile-software-development-lifecycle/
@sseth2011 Did you use FME Server projects for this or just the api?
@virtualcitymatt - what parts were the most hacky? How did you resolve issues with connections? Our goal is to automate our deployments between DTAP environments.