Changes for page Rancher 2

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

From version 13.1
edited by Diana Strebkova
on 2025/12/12 13:29
Change comment: There is no comment for this version
To version 11.1
edited by Diana Strebkova
on 2025/12/12 12:08
Change comment: There is no comment for this version

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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" %)
284 284  
285 285  [[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"]]
286 286  
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335 335  (% class="wikigeneratedid" %)
336 336  Click Create.
337 337  
339 +
338 338  (% class="wrapped" %)
339 339  |=(((
340 340  Field
... ... @@ -363,96 +363,103 @@
363 363  
364 364  === Migrating chart repositories in rancher to new OCI Repository format ===
365 365  
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 +# Migration Guide: ChartMuseum → OCI-based Chart Repositories in Rancher
370 370  
371 -There are two ways to migrate your repositories:
370 +## Overview
371 +ChartMuseum is being deprecated. After the migration is complete, **all charts will be removed from ChartMuseum**, and **old HTTP(S)-based chart repositories will no longer work in Rancher**.
372 372  
373 -1. Direct Transition (Editing the Existing Repository)
374 - You can modify the existing repository directly:
375 -11.Change the target to “OCI Repository”.
376 -11.Update the URL as required (the repository name cannot be changed).
373 +To ensure a smooth transition, each project should **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase.
377 377  
378 -After saving, installed apps will automatically start using the updated repository.
375 +We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.
379 379  
380 -Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
381 -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”).
382 -The other charts will no longer receive updates through this repo, and you will still need to create additional repositories for each individual chart.
377 +---
383 383  
384 -1. Add New Repositories One by One (Recommended)
379 +## Terminology
380 +| Term | Meaning |
381 +|------|---------|
382 +| **Old Repository** | The existing HTTP/HTTPS ChartMuseum repository. |
383 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`). |
385 385  
386 -This approach allows a smooth transition while the old ChartMuseum repository continues to function.
387 -You can:
385 +---
388 388  
389 -* Create a new OCI repository for each chart,
390 -* Keep the old ChartMuseum repo enabled during the migration,
391 -* Migrate applications gradually following the steps described in the main migration guide.
387 +## Why This Migration Is Required
388 +- ChartMuseum is deprecated and will be removed.
389 +- Applications deployed from old repos keep a reference to that repo inside their labels.
390 +- Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions**.
392 392  
393 -This avoids disruptions and allows controlled migration.
392 +---
394 394  
395 -Special Case: Old Repo Targeting Multiple Chart Repos
394 +## Migration Steps
396 396  
397 -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 +### 1. Create the New OCI Repository in Rancher
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.
398 398  
399 -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
402 +---
400 400  
401 -(% class="box" %)
402 -(((
403 -**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
404 -)))
404 +### 2. Disable the Old ChartMuseum Repository Temporarily
405 +This step ensures that Rancher resolves charts from the new OCI repo.
405 405  
406 -| Term | Meaning
407 -| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
408 -| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
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.
409 409  
410 -##__**Why This Migration Is Required:**__##
411 +---
411 411  
412 -* ##ChartMuseum is deprecated and will be removed.##
413 -* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
414 -* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
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.
415 415  
416 -## Migration Steps:##
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**.
417 417  
418 -1. ##Create the New OCI Repository in Rancher##
419 -11. Go to **Apps → Repositories**.
420 -11. Add a new repository of type **OCI**.
421 -11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
422 -11. Point it to the new OCI endpoint.
423 -1. ##Disable the Old ChartMuseum Repository Temporarily## 
424 -##This step ensures that Rancher resolves charts from the new OCI repo.##
425 -11. Go to **Apps → Repositories**.
426 -11. Disable the old HTTP(S)-based repository.
427 -11. Keep it disabled until the migration is done.
428 -1. ##Update Existing Applications to Use the New OCI Repo##
429 -Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
430 -11. Go to **Apps → Installed Apps**.
431 -11. Open the application that was deployed using the old repo.
432 -11. Click **Upgrade**.
433 -11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
434 -11. Choose the chart version you want to deploy (same or newer).
435 -11. Click **Upgrade**.
436 -1. ##Re-enable the Old Repository (Optional) ##
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)
437 437  If you still need the old repo for other apps, re-enable it after the migration steps above.
438 -**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
439 439  
440 -----
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.
441 441  
442 -## Reverting the Migration (If Needed)
443 -If you want to move an app back to the old repository:##
435 +---
444 444  
437 +## Reverting the Migration (If Needed)
438 +If you want to move an app back to the old repository:
445 445  1. Temporarily disable the new OCI repo.
446 -1. Enable the old ChartMuseum repo.
447 -1. Open the application → **Upgrade**.
448 -1. Select the chart from the old repo.
449 -1. Save.
440 +2. Enable the old ChartMuseum repo.
441 +3. Open the application → **Upgrade**.
442 +4. Select the chart from the old repo.
443 +5. Save.
450 450  
451 451  This will reconnect the app to the old repository.
452 452  
453 -=
454 -Automated deployments with Jenkins =
447 +---
455 455  
449 +## Summary
450 +- Add new OCI repo → disable old repo → upgrade apps → reconnect to OCI repo.
451 +- After upgrade, apps no longer track versions from the old repository.
452 +- Old repository will stop functioning after ChartMuseum shutdown, so migration is required.
453 +
454 +---
455 +
456 +If you want, I can also generate:
457 +- a shorter version (1-pager),
458 +- a diagram,
459 +- a Rancher UI screenshot guide,
460 +- or a version tailored for your team’s internal wiki.
461 +
462 +
463 += Automated deployments with Jenkins =
464 +
456 456  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.
457 457  
458 458  == Prerequisites ==