Changes for page Rancher 2

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

From version 11.2
edited by Diana Strebkova
on 2025/12/12 12:09
Change comment: There is no comment for this version
To version 14.1
edited by Diana Strebkova
on 2025/12/12 13:32
Change comment: There is no comment for this version

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335 335  (% class="wikigeneratedid" %)
336 336  Click Create.
337 337  
338 -
339 339  (% class="wrapped" %)
340 340  |=(((
341 341  Field
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364 364  
365 365  === Migrating chart repositories in rancher to new OCI Repository format ===
366 366  
367 -(% class="wikigeneratedid" %)
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 +)))
368 368  
369 -##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)**.##
371 +There are two ways to migrate your repositories:
370 370  
371 -To ensure a smooth transition, we recomment should **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase.
373 +1. ##Direct Transition (Editing the Existing Repository)##
374 +11. Change the target to “OCI Repository”.
375 +11. Update the URL as required (the repository name cannot be changed).
372 372  
373 -We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.
377 +1. Direct Transition (Editing the Existing Repository).You can modify the existing repository directly:
378 +Change the target to “OCI Repository”.Update the URL as required (the repository name cannot be changed).
374 374  
375 ------
380 +After saving, installed apps will automatically start using the updated repository.
376 376  
377 -## Terminology##
382 +Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
383 +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”).
384 +The other charts will no longer receive updates through this repo, and you will still need to create additional repositories for each individual chart.
378 378  
379 -| Term | Meaning |
380 -| |-|
381 -| **Old Repository** | The existing HTTP/HTTPS ChartMuseum repository. |
382 -| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`). |
386 +1. Add New Repositories One by One (Recommended)
383 383  
384 ------
388 +This approach allows a smooth transition while the old ChartMuseum repository continues to function.
389 +You can:
385 385  
386 -## Why This Migration Is Required
387 -- ChartMuseum is deprecated and will be removed.
388 -- Applications deployed from old repos keep a reference to that repo inside their labels.
389 -- Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions**.##
391 +* Create a new OCI repository for each chart,
392 +* Keep the old ChartMuseum repo enabled during the migration,
393 +* Migrate applications gradually following the steps described in the main migration guide.
390 390  
391 ------
395 +This avoids disruptions and allows controlled migration.
392 392  
393 -## Migration Steps##
397 +Special Case: Old Repo Targeting Multiple Chart Repos
394 394  
395 -### 1. Create the New OCI Repository in Rancher##
399 +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.
396 396  
397 -1. Go to **Apps → Repositories**.
398 -2. Add a new repository of type **OCI**.
399 -3. Name it exactly like your old repo name (e.g. `<chart-repo-name>`).
400 -4. Point it to the new OCI endpoint.
401 +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
401 401  
402 ------
403 +(% class="box" %)
404 +(((
405 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
406 +)))
403 403  
404 -### 2. Disable the Old ChartMuseum Repository Temporarily
405 -This step ensures that Rancher resolves charts from the new OCI repo.##
408 +| Term | Meaning
409 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
410 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
406 406  
407 -1. Go to **Apps → Repositories**.
408 -2. Disable the old HTTP(S)-based repository.
409 -3. Keep it disabled until the migration is done.
412 +##__**Why This Migration Is Required:**__##
410 410  
411 ------
414 +* ##ChartMuseum is deprecated and will be removed.##
415 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
416 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
412 412  
413 -### 3. Update Existing Applications to Use the New OCI Repo
414 -Applications deployed with the old repository still contain the old repo name in their metadata.
415 -You must upgrade them once to transition.##
418 +## Migration Steps:##
416 416  
417 -1. Go to **Apps → Installed Apps**.
418 -2. Open the application that was deployed using the old repo.
419 -3. Click **Upgrade**.
420 -4. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
421 -5. Choose the chart version you want to deploy (same or newer).
422 -6. Click **Upgrade**.
420 +1. ##Create the New OCI Repository in Rancher##
421 +11. Go to **Apps → Repositories**.
422 +11. Add a new repository of type **OCI**.
423 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
424 +11. Point it to the new OCI endpoint.
425 +1. ##Disable the Old ChartMuseum Repository Temporarily## 
426 +##This step ensures that Rancher resolves charts from the new OCI repo.##
427 +11. Go to **Apps → Repositories**.
428 +11. Disable the old HTTP(S)-based repository.
429 +11. Keep it disabled until the migration is done.
430 +1. ##Update Existing Applications to Use the New OCI Repo##
431 +Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
432 +11. Go to **Apps → Installed Apps**.
433 +11. Open the application that was deployed using the old repo.
434 +11. Click **Upgrade**.
435 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
436 +11. Choose the chart version you want to deploy (same or newer).
437 +11. Click **Upgrade**.
438 +1. ##Re-enable the Old Repository (Optional) ##
439 +If you still need the old repo for other apps, re-enable it after the migration steps above.
440 +**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
423 423  
424 -After this upgrade:
425 -- Your application is now linked to the **new OCI repository**.
426 -- Rancher will show upgrade notifications only for versions available in the new repo.
442 +----
427 427  
428 ------
429 -
430 -### 4. Re-enable the Old Repository (Optional)
431 -If you still need the old repo for other apps, re-enable it after the migration steps above.##
432 -
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 -
437 437  ## Reverting the Migration (If Needed)
438 438  If you want to move an app back to the old repository:##
439 439  
440 440  1. Temporarily disable the new OCI repo.
441 -2. Enable the old ChartMuseum repo.
442 -3. Open the application → **Upgrade**.
443 -4. Select the chart from the old repo.
444 -5. Save.
448 +1. Enable the old ChartMuseum repo.
449 +1. Open the application → **Upgrade**.
450 +1. Select the chart from the old repo.
451 +1. Save.
445 445  
446 446  This will reconnect the app to the old repository.
447 447  
448 ------
455 +=
456 +Automated deployments with Jenkins =
449 449  
450 -## Summary
451 -- Add new OCI repo → disable old repo → upgrade apps → reconnect to OCI repo.
452 -- After upgrade, apps no longer track versions from the old repository.
453 -- Old repository will stop functioning after ChartMuseum shutdown, so migration is required.##
454 -
455 ------
456 -
457 -If you want, I can also generate:
458 -- a shorter version (1-pager),
459 -- a diagram,
460 -- a Rancher UI screenshot guide,
461 -- or a version tailored for your team’s internal wiki.
462 -
463 -
464 -= Automated deployments with Jenkins =
465 -
466 466  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.
467 467  
468 468  == Prerequisites ==