Changes for page Rancher 2

Last modified by Diana Strebkova on 2025/12/12 14:23

From version 10.12
edited by Diana Strebkova
on 2025/12/12 11:58
Change comment: There is no comment for this version
To version 15.2
edited by Diana Strebkova
on 2025/12/12 13:40
Change comment: There is no comment for this version

Summary

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281 281  (% class="p1" %)
282 282  In Rancher UI, switch to the intended cluster and go to Apps/Repositories using the left side menu.
283 283  
284 -(% class="p1" %)
285 285  
286 286  [[image:attach:Screenshot 2023-04-25 at 13.11.48.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="400" width="209"]]
287 287  
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336 336  (% class="wikigeneratedid" %)
337 337  Click Create.
338 338  
339 -
340 340  (% class="wrapped" %)
341 341  |=(((
342 342  Field
... ... @@ -363,10 +363,93 @@
363 363  {{/info}}
364 364  )))
365 365  
366 -=== Migrating ===
364 +=== Migrating chart repositories in rancher to new OCI Repository format ===
367 367  
368 -= Automated deployments with Jenkins =
366 +(% class="box warningmessage" %)
367 +(((
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 +)))
369 369  
371 +There are two ways to migrate your repositories:
372 +
373 +1. ##Direct Transition (Editing the Existing Repository)##
374 +1*. Change the target to “OCI Repository”.
375 +1*. Update the URL as required (the repository name cannot be changed).
376 +1*. After saving, installed apps will automatically start using the updated repository.
377 +1*. (% class="box" %)
378 +(((
379 +Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
380 +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”).
381 +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 +)))
383 +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:
384 +1*. Create a new OCI repository for each chart,
385 +1*. Keep the old ChartMuseum repo enabled during the migration,
386 +1*. Migrate applications gradually following the steps described here.
387 +
388 +This avoids disruptions and allows controlled migration.
389 +
390 +Special Case: Old Repo Targeting Multiple Chart Repos
391 +
392 +If your existing repository targets multiple chart repositories and you need the new OCI setup to behave the same way, please contact support. OCI does not support multi-chart endpoints within a single repository, and we can help you find an appropriate solution.
393 +
394 +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
395 +
396 +(% class="box" %)
397 +(((
398 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
399 +)))
400 +
401 +| Term | Meaning
402 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
403 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
404 +
405 +##__**Why This Migration Is Required:**__##
406 +
407 +* ##ChartMuseum is deprecated and will be removed.##
408 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
409 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
410 +
411 +## Migration Steps:##
412 +
413 +1. ##Create the New OCI Repository in Rancher##
414 +11. Go to **Apps → Repositories**.
415 +11. Add a new repository of type **OCI**.
416 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
417 +11. Point it to the new OCI endpoint.
418 +1. ##Disable the Old ChartMuseum Repository Temporarily## 
419 +##This step ensures that Rancher resolves charts from the new OCI repo.##
420 +11. Go to **Apps → Repositories**.
421 +11. Disable the old HTTP(S)-based repository.
422 +11. Keep it disabled until the migration is done.
423 +1. ##Update Existing Applications to Use the New OCI Repo##
424 +Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
425 +11. Go to **Apps → Installed Apps**.
426 +11. Open the application that was deployed using the old repo.
427 +11. Click **Upgrade**.
428 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
429 +11. Choose the chart version you want to deploy (same or newer).
430 +11. Click **Upgrade**.
431 +1. ##Re-enable the Old Repository (Optional) ##
432 +If you still need the old repo for other apps, re-enable it after the migration steps above.
433 +**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
434 +
435 +----
436 +
437 +## Reverting the Migration (If Needed)
438 +If you want to move an app back to the old repository:##
439 +
440 +1. Temporarily disable the new OCI repo.
441 +1. Enable the old ChartMuseum repo.
442 +1. Open the application → **Upgrade**.
443 +1. Select the chart from the old repo.
444 +1. Save.
445 +
446 +This will reconnect the app to the old repository.
447 +
448 +=
449 +Automated deployments with Jenkins =
450 +
370 370  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.
371 371  
372 372  == Prerequisites ==