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[Ortiz Ullery]

Ive been working on developing some guides on how to use version control with Ignition in a team-based environment. If you've never used git, or just don't understand the nuances of how to use it with Ignition, you may find these documents useful to get you started. These are by no means comprehensive and are not any gold standard, but merely some guideposts as you find what will work best for you.

This is a basic style guide for version control in a team-based environment. Everyone has their two cents on how this should be done, here's mine. If you already have a convention, you may not need this.

This is a sample of what we in Application Engineering use internally on our projects. This is basically a copy of what @Kevin.Collins has put together in previously, but all in one place and curated for a small-medium sized project.

Don't expect any first party Git (or any other VCS) integration in 8.3.0.

Capabilities will expand significantly, since gateway config is moving to the filesystem in a similar manner to the existing project resource mechanism.

Expect some other improvements in the management of resources on disk, such as less hassle with the resource.json file.

@Eric_Knorr @Kevin.Collins would you be able to provide some context around your use of the project template? It's using git to manage a compose stack including a .gwbk and other assets to spool up, correct? But are you using SCM for the gwbk and projects within this? Do you also have a repo for your /data (gwbk) directory? That's what we've been testing as a root dir for our repo, then we can all run local dev gateways and push changes into SCM with a DevOps pipeline to update test gateways.

The way we use this in Application Engineering is pretty much only to source control whatever is currently held in files, so projects, any non-standard modules, additional icons, etc. Then the gateway backup is there to hold everything else. The only difference is that the gateway backup has the projects stripped out of it (using the script in the repo) such that when the -r flag is run on docker-compose up, it doesn't overwrite the bind mounted project folder. I'm working on a way to version control tags using Design Group's Tag CICD module, but it's still WIP.

To answer your last question, we do not have a separate repo for the data dir. We do mount a volume to hold data, but that's more of a convenience thing to save the gateway data - we haven't had a need to version control any deeper than that. So if a gateway change was made, we would take a new gateway backup, strip the projects, then commit that to the repo.

Sure, that's exactly correct. After bringing the docker stack up, running the download-gateway-backups.sh script will go through the running containers, take backups, strip the projects, and put them in the gw-init/ dir. I have a short paragraph in the readme about how to use this script as well.

Hey @wdougmiller, there shouldn't be any issues with project inheritance and version control. Inherited project resources aren't copied into the child project unless the resource is overridden, so there is no duplication of resources that would look funny from a version control perspective. In the case that you do have overridden resources, it will be found in the child project (with any saved changes) as well as in the parent project (as the unchanged version).

How are you guys setting up your workflow with Perspective/Vision projects and Designer? What I'm doing feels clunky but I'm not too sure how to improve it at the moment. Nothing I'm doing is mission critical and I'm a developer of one, but we've been successful enough with Ignition that it is at risk of becoming otherwise

'projects' folder of the Ignition install is set up in a git repo, so all projects are contained in one folder - I had it this way to manage .resource folder. Is this managed now and I'm out of touch?

My designer is connected to the server gateway, I work on 'Dev' projects and then when satisfied I push it to server, and export data in Designer to the relevent 'Prod' project. This means I could accidently overwrite a project in production

I want to build this export workflow in DevOps, any issue there?

Thanks! Yeah I'm not sure at all why I had one repo for everything, it's been a particular pain and not at all how I work my 'regular' software development pipeline. Thanks for the clarify on the .resources/, I think when I set this all up I just saw changes in that whenever I saved and figured they needed to be captured.

Glad to hear if I get that going 8.3 will improve the experience.

The local repo makes sense as well - I think early on I was doing more work just getting devices working with our network that working directly with projects on the gateway that this all would connect to seemed logical, but I like working locally and just moving a connection over when ready.

I might keep my Dev Projects because being able to open up a Vision Client on a custom machine with like, three different devices on the floor in the exact setup it'll be used on is nice, when I have only 15-30 minutes to do so between shifts >_

Are you using the Projects folder to hold all projects in the gateway or for an individual project? I see that one repo per project is recommended by @PGriffith but this template seems to work more like a monorepo to me. Obviously there's more than one way to do things. Just curious what the intention was.

I would like to use containers for development but still be able to use a VM in production. With this project structure how would I be able to strip out the project files for production? I played around with Git submodules so the project/projects and the project template have their own repos. It works but adds an extra layer of complexity.

If the objective I'm working on has more than one project, such as an inherited project, I would create a bind mount for each of the projects, but I would keep this to only related projects to the objective. Some of our initiatives such as the Public Demo have many projects in one gateway. We use 1 repo to hold all of those projects.

That makes a lot of sense. I would prefer to keep the projects folder limited to only related projects. I will probably create separate repos for anything gateway scoped (e.g. tags, gateway backups, images, etc.) and manually move those resources into the project repos when necessary.

I would like to eventually run containers in production, but for the time being I will most likely perform manual project exports between different VM environments. I also played around with git sparse-checkout and it seemed to be more trouble than it was worth.

I am afraid if I upgrade all the projects, that we will try to do stuff on the old projects that has changed and end up chasing a few rabbit tails. Our customers have no plans to upgrade, so I know we will continue to face this.

Besides that, you can install multiple Ignitions on the same computer. You should only have one of them running at a time though. To install multiple Ignitions you cannot use the Ignition installer, you have to use the Windows zip files that you can download from our website. Follow these instructions:

I have the 7.5.3 program in Program Files and did the install-ignition BAT, and the Ignition service installed, but when I run the launch-gcu.bat, the Gateway Control Utility showes both the web server and gateway are stopped.

This is sort of asking for an update to this post, and what might be planned for 8.3. Our team is working on better version control solutions, so it would be really helpful to know what sorts of things may help to solve problems going forward.

For example, are there any manual steps to be automated or changes to Ignition 8 Deployment Best Practices Inductive Automation for the new version? Or any integration with Git planned? Or any changes to the SDK, or Gateway configs, etc. that may help with version control?

One of the highlight features planned for 8.3 is for all gateway config to end up on the filesystem in a human & machine readable file format, similar to 8.0 moving all project configuration to the filesystem.

Exact details on how that will work have yet to be determined. That's by far the biggest change planned with regard to version control.

Note that 'Gateway Events', as in 'Gateway Event Scripts', are a regular project resource and already stored on the filesystem. Their actual storage format is also planned to be revamped in 8.3, so that they're broken up into distinct resources in a human-readable format, but that's orthogonal to gateway configuration itself (db connections, device drivers, etc).

What is the procedure to downgrade ignition from 7.5.10 to 7.5.4? We have experienced numerous issues with 7.5.10, and need to go back to the last working version. The stability of OPC connections with 7.5.10 is terrible even after upgrading Kepserverex to 5.12.

I think that our licence is hooked to 8.0.x version, I also have a gateway backup from 8.0.9

the problem is precisely the licence, I tried to update from 8.0.9 to 8.1.25 but the licence does not work, the gateway still in trial mode even if the modules are listed as applied licence... so I'm considering to roll-back the version to 8.0.17 (last one from 8.0.x major version).

it should work, isn't it?

thanks for you prompt reply!

kind regards,

MF

If you must. Don't expect any changes you made in v8.1 to work after roll back. Consider de-activating your license, wiping the machine, installing 8.0.17, restoring your 8.0.9 backup, and then activating.

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