Changes for page Rancher 2

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

From version 10.9
edited by Diana Strebkova
on 2025/12/12 11:54
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

Summary

Details

Page properties
Content
... ... @@ -316,13 +316,16 @@
316 316  ==== Target: OCI Repository ====
317 317  
318 318  {{info}}
319 -Now all internal helm charts are stored in harbor folders with -helm suffix. Adding the whole public project doesn't work natively anymore, so each separate chart should be added as a separate repo.//** If you have a real need to add the whole project, please contact support for finding a possible solution.**//
319 +Now all internal helm charts are stored in harbor folders with -helm suffix. Adding the whole public project doesn't work natively anymore, so each separate chart should be added as a separate repo.//** If you have a real need to add the whole project, please contact support for finding a possible solution.**//
320 320  {{/info}}
321 321  
322 322  (% class="p1" %)
323 323  Choose OCI repository in Target and for url, use  ##oci:~/~/registry-<domain>.devops.t-systems.net/<project>-helm/<chartname>##
324 324  
325 -Replace ##<domain>## , ##<project>##  and ##<chartname> ##as necessary to match your set-up. Your charts should be stored in ##<project>-helm repository in Harbor, which is created by default when project is created in portal.##
325 +(% class="box" %)
326 +(((
327 +Replace ##<domain>## , ##<project>##  and ##<chartname> ##as necessary to match your set-up. Your charts should be stored in ##<project>-helm ##repository in Harbor, which is created by default when project is created in portal.
328 +)))
326 326  
327 327  (% class="p1" %)
328 328  For Authentication, select "Create a HTTP Basic Auth Secret" and provide the Username and Password of the Harbor robot account from the previous section.
... ... @@ -333,6 +333,130 @@
333 333  (% class="wikigeneratedid" %)
334 334  Click Create.
335 335  
339 +
340 +(% class="wrapped" %)
341 +|=(((
342 +Field
343 +)))|=(((
344 +Value
345 +)))
346 +|=(((
347 +Name
348 +)))|(((
349 +sdcloud-sdportal
350 +)))
351 +|=(((
352 +Description
353 +)))|(((
354 +Sdportal charts of sdcloud project
355 +)))
356 +|=(((
357 +Index URL
358 +)))|(((
359 +oci:~/~/registry.sdc.t-systems.net/sdcloud-helm/sdportal
360 +
361 +{{info}}
362 +Now we should target a chart repo directly, not the whole project. In you need to reference the whole project with a lot of repos, please contact support to find a possible solution.
363 +{{/info}}
364 +)))
365 +
366 +=== Migrating chart repositories in rancher to new OCI Repository format ===
367 +
368 +# Migration Guide: ChartMuseum → OCI-based Chart Repositories in Rancher
369 +
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 +
373 +To ensure a smooth transition, each project should **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase.
374 +
375 +We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.
376 +
377 +---
378 +
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`). |
384 +
385 +---
386 +
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**.
391 +
392 +---
393 +
394 +## Migration Steps
395 +
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.
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 +## Reverting the Migration (If Needed)
438 +If you want to move an app back to the old repository:
439 +1. Temporarily disable the new OCI repo.
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.
444 +
445 +This will reconnect the app to the old repository.
446 +
447 +---
448 +
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 +
336 336  = Automated deployments with Jenkins =
337 337  
338 338  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.