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 12.15
edited by Diana Strebkova
on 2025/12/12 13:22
Change comment: There is no comment for this version

Summary

Details

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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 +363,99 @@
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 + You can modify the existing repository directly:
375 +Change the target to “OCI Repository”.
376 +
377 +* Update the URL as required (the repository name cannot be changed).
378 +
379 +After saving, installed apps will automatically start using the updated repository.
380 +
381 +Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
382 +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”).
383 +The other charts will no longer receive updates through this repo, and you will still need to create additional repositories for each individual chart.
384 +
385 +1. Add New Repositories One by One (Recommended)
386 +
387 +This approach allows a smooth transition while the old ChartMuseum repository continues to function.
388 +You can:
389 +
390 +* Create a new OCI repository for each chart,
391 +* Keep the old ChartMuseum repo enabled during the migration,
392 +* Migrate applications gradually following the steps described in the main migration guide.
393 +
394 +This avoids disruptions and allows controlled migration.
395 +
396 +Special Case: Old Repo Targeting Multiple Chart Repos
397 +
398 +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.
399 +
400 +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
401 +
402 +(% class="box" %)
403 +(((
404 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
405 +)))
406 +
407 +| Term | Meaning
408 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
409 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
410 +
411 +##__**Why This Migration Is Required:**__##
412 +
413 +* ##ChartMuseum is deprecated and will be removed.##
414 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
415 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
416 +
417 +## Migration Steps:##
418 +
419 +1. ##Create the New OCI Repository in Rancher##
420 +11. Go to **Apps → Repositories**.
421 +11. Add a new repository of type **OCI**.
422 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
423 +11. Point it to the new OCI endpoint.
424 +1. ##Disable the Old ChartMuseum Repository Temporarily## 
425 +##This step ensures that Rancher resolves charts from the new OCI repo.##
426 +11. Go to **Apps → Repositories**.
427 +11. Disable the old HTTP(S)-based repository.
428 +11. Keep it disabled until the migration is done.
429 +1. ##Update Existing Applications to Use the New OCI Repo##
430 +Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
431 +11. Go to **Apps → Installed Apps**.
432 +11. Open the application that was deployed using the old repo.
433 +11. Click **Upgrade**.
434 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
435 +11. Choose the chart version you want to deploy (same or newer).
436 +11. Click **Upgrade**.
437 +1. ##Re-enable the Old Repository (Optional) ##
438 +If you still need the old repo for other apps, re-enable it after the migration steps above.
439 +**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
440 +
441 +----
442 +
443 +## Reverting the Migration (If Needed)
444 +If you want to move an app back to the old repository:##
445 +
446 +1. Temporarily disable the new OCI repo.
447 +1. Enable the old ChartMuseum repo.
448 +1. Open the application → **Upgrade**.
449 +1. Select the chart from the old repo.
450 +1. Save.
451 +
452 +This will reconnect the app to the old repository.
453 +
454 +=
455 +Automated deployments with Jenkins =
456 +
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 ==