Changes for page Rancher 2

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

From version 15.2
edited by Diana Strebkova
on 2025/12/12 13:40
Change comment: There is no comment for this version
To version 12.1
edited by Diana Strebkova
on 2025/12/12 12:23
Change comment: There is no comment for this version

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... ... @@ -368,31 +368,8 @@
368 368  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  )))
370 370  
371 -There are two ways to migrate your repositories:
371 +To ensure a smooth transition, we recommend to **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase.
372 372  
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 -
396 396  (% class="box" %)
397 397  (((
398 398  **We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.**
... ... @@ -415,13 +415,12 @@
415 415  11. Add a new repository of type **OCI**.
416 416  11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same.
417 417  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.##
395 +1. ##Disable the Old ChartMuseum Repository Temporarily##. ##This step ensures that Rancher resolves charts from the new OCI repo.##
420 420  11. Go to **Apps → Repositories**.
421 421  11. Disable the old HTTP(S)-based repository.
422 422  11. Keep it disabled until the migration is done.
423 423  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.
400 +##Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.##
425 425  11. Go to **Apps → Installed Apps**.
426 426  11. Open the application that was deployed using the old repo.
427 427  11. Click **Upgrade**.
... ... @@ -428,26 +428,41 @@
428 428  11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**.
429 429  11. Choose the chart version you want to deploy (same or newer).
430 430  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
407 +1. ##Re-enable the Old Repository (Optional) If you still need the old repo for other apps, re-enable it after the migration steps above.##
434 434  
435 -----
409 + 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.
436 436  
411 +-----
412 +
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 -1. Enable the old ChartMuseum repo.
442 -1. Open the application → **Upgrade**.
443 -1. Select the chart from the old repo.
444 -1. Save.
417 +2. Enable the old ChartMuseum repo.
418 +3. Open the application → **Upgrade**.
419 +4. Select the chart from the old repo.
420 +5. Save.
445 445  
446 446  This will reconnect the app to the old repository.
447 447  
448 -=
449 -Automated deployments with Jenkins =
424 +-----
450 450  
426 +## Summary
427 +- Add new OCI repo → disable old repo → upgrade apps → reconnect to OCI repo.
428 +- After upgrade, apps no longer track versions from the old repository.
429 +- Old repository will stop functioning after ChartMuseum shutdown, so migration is required.##
430 +
431 +-----
432 +
433 +If you want, I can also generate:
434 +- a shorter version (1-pager),
435 +- a diagram,
436 +- a Rancher UI screenshot guide,
437 +- or a version tailored for your team’s internal wiki.
438 +
439 +
440 += Automated deployments with Jenkins =
441 +
451 451  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.
452 452  
453 453  == Prerequisites ==