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 12.11
edited by Diana Strebkova
on 2025/12/12 13:13
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
... ... @@ -364,105 +364,73 @@
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 2 ways to "migrate" the repos:
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. You can do direct transition  and edit already existing repository – choose //Target: OCI repository, //adapt the url (__repo name can't be changed__), then the installed apps will pick app the repo change automatically. The problem is that the OCI repository recommends to target chart repos in the url, not the whole folder anymore.  That means if you deployed previously different apps using the old repo, for example "bitbucket" and "jira", now you can only target one repo, for example "bitbucket", you will still need to create a new repo targeting "jira".
374 +1. Or you can add new repositories one by
372 372  
373 -We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.
376 +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
374 374  
375 ------
378 +(% class="box" %)
379 +(((
380 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
381 +)))
376 376  
377 -## Terminology##
383 +| Term | Meaning
384 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
385 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
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`). |
387 +##__**Why This Migration Is Required:**__##
383 383  
384 ------
389 +* ##ChartMuseum is deprecated and will be removed.##
390 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
391 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
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**.##
393 +## Migration Steps:##
390 390  
391 ------
395 +1. ##Create the New OCI Repository in Rancher##
396 +11. Go to **Apps → Repositories**.
397 +11. Add a new repository of type **OCI**.
398 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
399 +11. Point it to the new OCI endpoint.
400 +1. ##Disable the Old ChartMuseum Repository Temporarily## 
401 +##This step ensures that Rancher resolves charts from the new OCI repo.##
402 +11. Go to **Apps → Repositories**.
403 +11. Disable the old HTTP(S)-based repository.
404 +11. Keep it disabled until the migration is done.
405 +1. ##Update Existing Applications to Use the New OCI Repo##
406 +Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
407 +11. Go to **Apps → Installed Apps**.
408 +11. Open the application that was deployed using the old repo.
409 +11. Click **Upgrade**.
410 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
411 +11. Choose the chart version you want to deploy (same or newer).
412 +11. Click **Upgrade**.
413 +1. ##Re-enable the Old Repository (Optional) ##
414 +If you still need the old repo for other apps, re-enable it after the migration steps above.
415 +**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
392 392  
393 -## Migration Steps##
417 +----
394 394  
395 -### 1. Create the New OCI Repository in Rancher##
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 -
402 ------
403 -
404 -### 2. Disable the Old ChartMuseum Repository Temporarily
405 -This step ensures that Rancher resolves charts from the new OCI repo.##
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.
410 -
411 ------
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.##
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**.
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.
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.
423 +1. Enable the old ChartMuseum repo.
424 +1. Open the application → **Upgrade**.
425 +1. Select the chart from the old repo.
426 +1. Save.
445 445  
446 446  This will reconnect the app to the old repository.
447 447  
448 ------
430 +=
431 +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 ==