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I'm starting my first project where I'll be using managed solutions. In my unmanaged solutioning, each release I create a new solution, and put only the changes that have been made into that solution, and then deploy through the environments. Can I just do the same thing in a managed sense? Or should I be having a single managed solution that contains everything that I deploy each release? This seems wrong to me. I know I could use patches, but then at what point should I do an Upgrade vs another patch? I've also seen different projects where solutions are divided up, Tables/code/other/etc. Is that helpful as well? And if so, how do I not create issues with inter managed dependencies?
Hi @Dlabar,
For a green project/system I would also recommend managed solutions all the way for some of the benefits described in the previous posts. Without going into the theory, practically in my opinion the main benefit with managed is that it automatically cleans up unused components like fields, views, etc. Whereas unmanaged every developer needs to be disciplined and manage/script those for upstream environments. This saves a lot of time and headaches in the long run. Some other benefits mentioned like the ability to uninstall/rollback a solution, in my experience is not realistic. When do we ever do that in prod? We usually roll forward with a new version or solution.
To answer “seems wrong to push full solution”: traditionally the dev environment would be the source of truth for the configuration (eg tables/entities). With the latest CI/CD practices, regardless managed or unmanaged solution, the source control should be the source of truth and place to manage conflicts, and production ready code/config. That said, whether you choose to deploy only the changed components in a small unmanaged solution or same managed solution with a new version is mostly irrelevant... As Scott alluded to, it’s probably more management to create a new unmanaged solution and determine what change for the upcoming deployment, then to simply reused your managed solution and increase version. For deployment time, technically having larger solutions will increase deployment time but in my experience that’s negligible. Having a solid CI/CD pipeline does because there are more repeatable and automatic steps/actions to ensure the target environment is in the expected state. As we know even if it takes more time the advantages outweighs immensely the time. Traditionally again, with unmanaged although not the reason but it facilitated us to directly update in prod or test and then redo the change in dev.
The most important and critical thing when choosing to go the managed route is the design of your environments which will dictate how you segment solutions. A general rule of thumb is one managed solution per dev env. In a constantly changing agile ALM, it is very hard to determine this. You might not think a component/module is “core” but then tomorrow a new business initiative arrives and becomes it!
BTW it might seem that I’m against unmanaged but I’m not, I do appreciate its simplistic approach sometimes. What matters the most is having a healthy ALM and you can have with unmanaged. It just that with managed solutions, I find it will help more with that process.
Hope this helps!
@BenediktB If a given feature is in development and you need to release a separate enhancement, you just make another patch and have them in parallel. If you need to release something big (that crosses patches and makes them impractical to release independently), you clone as upgrade and you are right back where you would have been if you'd never made a patch in the first place. Sub into that paradigm your 'spin up a new org' solution and you need minimum 3, possibly 4 orgs to get the same thing done and you can't easily see possible points of overlap/conflict between the feature releases until you try to bring them back together (at which point, you're assumedly doing it unmanaged and Dataverse won't even warn you if there is a conflict, just last one in wins).
I get that it adds overhead, I really do, but it also adds value. Not right for every situation, of course, but not something that should be dismissed out of hand.
I now dub myself "that crazy guy who has spent more effort defending patches than any person would ever consider reasonable."
One caveat with the all in one solution approach is custom connectors. Currently it's possible to get SQL deadlocks and thus a failed solution install if a custom connector is included in a single solution alongside its dependent components. See https://docs.microsoft.com/en-us/connectors/custom-connectors/customconnectorssolutions#known-limitations
I am still not convinced. How do you handle a normal release when you have a feature patch which is in development/testing for several sprints/weeks?
As you mention patches block the core solution. So they have to be short-lived. Which isn't possible when one uses them for feature development. At least I haven't seen it work.
We tend to create POC environments if we would like to test out new features or feature environment to develop them. When they are finished they get deployed to the dev environment and merged into our normal solution.
I am sorry, but I don't see patches there. Could be that I don't see the complete picture though.
@BenediktB - Agree that Patch naming (and many other aspects of patches) could really use some love from MSFT. Those are definitely among the many reasons they outwardly do not promote patches as a best practice.
The key to making patches viable, IMO, is thinking of them more as an ethereal solution branch; either as a "hotfix that we will roll into the whole solution once we can test it better" or as a "feature we will roll into the solution once we know it isn't worthless" Granted, in both cases rollback isn't as simple as it could be (I have R-rated dreams about the ability to build a managed layer directly in an environ instead of importing it) but it is definitely much better than putting a temporary addition into one monolothic managed solution only to release it and decide "that was a bad idea".
Since Holding solutions and Upgrades are only a thing with managed solutions you might not be aware of what I was referring to (and Scott as well). I tried to describe those a bit in one of my blog posts
https://benediktbergmann.eu/2020/09/20/apply-solution-upgrade-in-pipeline/#background
I do agree with @ScottDurow and partially with @cchannon.
I always use managed solutions based on the pros that were discussed and you are probably fully aware of. Two major things for me is the possibility to roll back Upgrades (until the Holding solution was applied) and that it will clean up components that were deleted from the solution. So if you delete a field from Dev it will be deleted from the following environments as well.
I also rarely use segmentation because of the complexity which comes with it and Scott described very well. One example where it is useful though is when there are several teams working on your end solution. There one team might build the core function and other teams might build on top of it (a bit like Scott described). Then every team should have at least one environment and a separated segmented solution.
As I mentioned on twitter: The approach you use at the moment with unmanaged solutions isn't usable and not at all recommended with managed solutions. You would create a dependency hell (ass @cchannon described) where you will be unable to delete anything in the future.
When I started here in Sweden over 3 Years ago my first assignment was in a project where this approach was used. It also was a CRM 2013 onPrem installation, which made it worse since there was a lot of investments in this area in the last months. We had maybe hundreds of managed solutions in prod all referencing components from each other. It is basically unmanageable and not possible to clean up.
I have to disagree with @cchannon in regards to patches. I rarely use them (the only occasion is when I have a hotfix to deploy) because I find them nearly unusable when it comes to an automated deployment process. I have the following problems with it:
@ScottDurow already touched on all the major points, so I won't repeat everything as I agree with with those statements.
I prefer to keep it as simple as possible and keep the solutions to a minimum. I think segmenting PA Flows is ok as they require a bit more work to deploy automatically with connection references.
I've never liked patches or had much success with them so I no longer attempt to. As Scott mentioned, it makes it difficult to manage in source control and requires its own ALM steps.
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@ScottDurow 's reply came in while I was writing mine so I am only seeing it now. I agree with everything he said, and I think we just have different perspectives on the cost/benefit of patches. Scott is totally right about the segmenting and not shying away from big solutions AND that patches add a lot of complexity, I would just say that the cost/benefit calculus changes a lot as the complexity of your feature releases changes. The more isolated features you are pushing out and the more you think you might need to pull them back, the more reasonable the costs of patches becomes.
Excellent topic that not nearly enough people take the time to dive into, IMO!
There are a lot of considerations to make when you jump over to managed solutions. It definitely introduces new risks to your process, but it also delivers some really excellent benefits at the same time.
My best advice is to start by thinking about the classic stratified visualization of solution layers (see my terrible MS paint skills below): As any component in Dataverse gets returned, it is evaluated against each of your solution layers in order, going from the oldest to the newest managed layers then finally the unmanged layer.
Layering managed layers therefore gives you the ability to have an almost polymorphic control of your solution components where you have mgd solution 1 define an entity "animal", then managed layer 2 says that animal is specifically of type "mammal" and managed layer 3 says that animal-->mammal is specifically of type "ape". This is a really powerful tool when you are mixing together customizations from multiple sources or teams, but if you only have one source definition (this project's dev environment) then it might just be overkill.
"but what about ease of deployment and only moving the newest customizations?" With an unmanaged solution you are always dumping to the same default solution so you can easily just add in the things you've changed and toss it from org to org, but with a managed solution this is less straightforward. You don't want to remove content from your solution just to minimize it (what a management headache!) but you also don't want a ton of managed solutions floating around your higher environments. Skipping right past the fact that it is ugly, when you have multiple managed solutions that contain references to the same components, it becomes very difficult to ever remove those components; say you have field X in mgd solution A and mgd solution B, now you want to remove it from the system. You remove it from A and go to import as an upgrade. but--oh no!--the import fails because you can't delete a component required by another managed solution. You remove it from B and try again, but still no luck because it is required by A! This kind of headache happens more often than you might think because a big advantage of managed solutions is that you can do these subtractive "upgrade" pushes which unmanaged solutions don't let you do. So, we're left with promoting this same managed solution again and again or, as you suggested, Patches.
Patches are an excellent tool, although I think they are no longer the 'preferred' approach of MSFT and may eventually be replaced with something more functional (that is still a long way off, don't worry). A Patch gives you the best of both worlds: it lets you stack managed layers on top of one another in a way that makes them very easy to remove if you want to back out a release, but also sets them up to be cleaned up eventually so you don't wind up piling up conflicts over time and making future subtractive releases unnecessarily difficult. When you generate a patch, what you're doing in your source system is creating a new unmanaged solution that is linked to your main unmanaged one, and when you export it and import it into the new org, it does not merge them, but stacks them so you get your changes, but can also easily back them out. The "Upgrade" you refer to is when you decide that all your patches are rock-solid, the solution is clean and there is no chance you will need to roll any of them out, so you are ready to again call it just one managed solution. You clone as Upgrade and it will consolidate your base solution and all patches into one Managed layer and upon importing into the new org it will do the same; flattening all patches and the base into one nice, clean managed layer again. (if it isn't already obvious, patches are the path I recommend)
So when do you consolidate your patches? That's really a question to be left to your project specifics and how you want to define a patch, but for the ISV products I manage, we do our releases in batches. We lump each of our 'preview' features as individual patches I can give out to customers to review and offer feedback and when we've incorporated feedback and are ready to finalize the release, we consolidate and issue a new major release.
Issues you'll have when using a patch:
On balance, there are of course downsides to every approach, but I find that patches let me and my teams experiment freely with new features, knowing that we can always safely rip them out of an environment if there is an issue. This is an enormous value-add that I just adore, and good enough reason for me to recommend it to anyone.
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