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Changes for page Rancher 2

Last modified by Diana Strebkova on 2025/12/12 14:23
From version 12.14
edited by Diana Strebkova
on 2025/12/12 13:20
Change comment: There is no comment for this version
To version 20.1
edited by Diana Strebkova
on 2025/12/12 14:21
Change comment: There is no comment for this version

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249 249  
250 250  oci:~/~/registry.sdc.t-systems.net/devopsaas-helm/jenkins-lib
251 251  
252 -{{info}}
253 -Take into account, that all internal harbor repositories with helm charts have PKEY-helm naming convention, adding repo with both docker images and helm charts may not be supported in rancher.
254 -{{/info}}
252 +{{box}}
253 +Take into account, that all internal harbor repositories with helm charts have PKEY-helm naming convention, adding repo with both docker images and helm charts is not supported in rancher.
254 +{{/box}}
255 255  )))
256 256  
257 257  {{info}}
... ... @@ -287,8 +287,8 @@
287 287  (% class="p1" %)
288 288  Create a new Repository by pressing the Create button.
289 289  
290 -(% id="HTarget:http28s29URL-1" class="p1" %)
291 -==== [[image:attach:Screenshot 2023-04-25 at 13.30.33.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="127" width="1100"]] ====
290 +(% class="p1" id="HTarget:http28s29URL-1" %)
291 +[[image:attach:Screenshot 2023-04-25 at 13.30.33.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="127" width="1100"]]
292 292  
293 293  (% id="HTarget:http28s29URL-1" class="p1" %)
294 294  ==== Target: http(s) URL ====
... ... @@ -368,19 +368,33 @@
368 368  ChartMuseum is being deprecated. After the migration is complete, **all harbor charts will be removed from ChartMuseum**, and **old HTTP(S)-based chart repositories will no longer work in Rancher (for internal harbor charts)**.
369 369  )))
370 370  
371 -There are 2 ways to "migrate" the repos:
371 +(% class="box" %)
372 +(((
373 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects. During migration, please adapt your helm push commands and url's for new oci-compatible repository.**
374 +)))
372 372  
373 -1. You can do direct transition and edit already existing repository – choose //Target: OCI repository, //adapt the url as shown above (__repo name can't be changed__), then the installed apps will pick app the repo change automatically. The issue is that the OCI repository needs to target chart repos in the url, not the whole folder anymore.  That means if you previously deployed previously different apps using the old repo, for example "bitbucket" and "jira", now you can only target one repo, for example "bitbucket", other repos updates wont be working anymore and you will still need to create a new repo targeting each chartrepo.
374 -1. Or you can add new repositories one by one taking your time, while the old chartmuseum repo will still be functioning suring migraiton. For this, you can see the next described migration process.
375 -1. If you have a repo targeting multiple repos and need that the new OCI repo behaves as the previous one, please contact support for finding out the solution.
376 +There are two ways to migrate your repositories:
376 376  
377 -To ensure a smooth transition, we recommend to **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase. If you don't w
378 -
379 -(% class="box" %)
378 +1. ##Direct Transition (Editing the Existing Repository)##
379 +1*. Change the target to “OCI Repository”.
380 +1*. Update the URL as required (the repository name cannot be changed).
381 +1*. After saving, installed apps will automatically start using the updated repository.
382 +1*. (% class="box" %)
380 380  (((
381 -**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
384 +Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
385 +If your old repository included several charts (for example “bitbucket” and “jira”), then after switching to OCI you can only target one chart (e.g. “bitbucket”).
386 +The other charts will no longer receive updates through this repo, and you will still need to create additional repositories for each individual chart.
382 382  )))
388 +1. Add New Repositories One by One (Recommended), preserve the old one till the end. This approach allows a smooth transition while the old ChartMuseum repository continues to function. You can:
389 +1*. Create a new OCI repository for each chart,
390 +1*. Keep the old ChartMuseum repo enabled during the migration,
391 +1*. Migrate applications gradually following the steps described here.
392 +1*. This avoids disruptions and allows controlled migration.
393 +1. //Special Case: Old Repo Targeting Multiple Chart Repos//
394 +If your existing repository targets multiple chart repositories and you need the new OCI setup to behave the same way, please **contact support.**
383 383  
396 +To ensure a smooth transition, we recommend to **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase. If you don't w
397 +
384 384  | Term | Meaning
385 385  | **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
386 386  | **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
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396 396  1. ##Create the New OCI Repository in Rancher##
397 397  11. Go to **Apps → Repositories**.
398 398  11. Add a new repository of type **OCI**.
399 -11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
413 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). __**You can't name it the same and can't rename it later.**__
400 400  11. Point it to the new OCI endpoint.
401 401  1. ##Disable the Old ChartMuseum Repository Temporarily## 
402 402  ##This step ensures that Rancher resolves charts from the new OCI repo.##
... ... @@ -403,12 +403,15 @@
403 403  11. Go to **Apps → Repositories**.
404 404  11. Disable the old HTTP(S)-based repository.
405 405  11. Keep it disabled until the migration is done.
420 +[[image:1765548124989-482.59.06.png||height="152" width="485"]]
406 406  1. ##Update Existing Applications to Use the New OCI Repo##
407 407  Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
408 408  11. Go to **Apps → Installed Apps**.
409 409  11. Open the application that was deployed using the old repo.
410 -11. Click **Upgrade**.
411 -11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
425 +11. Click **Edit/Upgrade**.
426 +[[image:1765548598644-830.png||height="138" width="811"]]
427 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**. Or enter the chart name in search bar:
428 +[[image:1765548750604-334.png||height="293" width="308"]]
412 412  11. Choose the chart version you want to deploy (same or newer).
413 413  11. Click **Upgrade**.
414 414  1. ##Re-enable the Old Repository (Optional) ##
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415 415  If you still need the old repo for other apps, re-enable it after the migration steps above.
416 416  **Note:** Even if a newer chart version exists in the old repository, your migrated app **will not see it**, because it is no longer connected to that repo
417 417  
418 -----
419 -
420 -## Reverting the Migration (If Needed)
435 +##
421 421  If you want to move an app back to the old repository:##
422 422  
423 423  1. Temporarily disable the new OCI repo.
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