Changes for page Rancher 2
Last modified by Diana Strebkova on 2025/12/12 14:23
From version 10.12
edited by Diana Strebkova
on 2025/12/12 11:58
on 2025/12/12 11:58
Change comment:
There is no comment for this version
To version 12.1
edited by Diana Strebkova
on 2025/12/12 12:23
on 2025/12/12 12:23
Change comment:
There is no comment for this version
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... ... @@ -281,7 +281,6 @@ 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" %) 285 285 286 286 [[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"]] 287 287 ... ... @@ -336,7 +336,6 @@ 336 336 (% class="wikigeneratedid" %) 337 337 Click Create. 338 338 339 - 340 340 (% class="wrapped" %) 341 341 |=((( 342 342 Field ... ... @@ -363,8 +363,82 @@ 363 363 {{/info}} 364 364 ))) 365 365 366 -=== Migrating === 364 +=== Migrating chart repositories in rancher to new OCI Repository format === 367 367 366 +(% 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 +))) 370 + 371 +To ensure a smooth transition, we recommend to **add an OCI-based repository alongside the existing ChartMuseum repository** during the migration phase. 372 + 373 +(% class="box" %) 374 +((( 375 +**We will make your charts available in the corresponding new `<pkey>-helm` OCI projects.** 376 +))) 377 + 378 +| Term | Meaning 379 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository. 380 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`). 381 + 382 +##__**Why This Migration Is Required:**__## 383 + 384 +* ##ChartMuseum is deprecated and will be removed.## 385 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.## 386 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.## 387 + 388 +## Migration Steps:## 389 + 390 +1. ##Create the New OCI Repository in Rancher## 391 +11. Go to **Apps → Repositories**. 392 +11. Add a new repository of type **OCI**. 393 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). You can't name it the same. 394 +11. Point it to the new OCI endpoint. 395 +1. ##Disable the Old ChartMuseum Repository Temporarily##. ##This step ensures that Rancher resolves charts from the new OCI repo.## 396 +11. Go to **Apps → Repositories**. 397 +11. Disable the old HTTP(S)-based repository. 398 +11. Keep it disabled until the migration is done. 399 +1. ##Update Existing Applications to Use the New OCI Repo## 400 +##Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.## 401 +11. Go to **Apps → Installed Apps**. 402 +11. Open the application that was deployed using the old repo. 403 +11. Click **Upgrade**. 404 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**. 405 +11. Choose the chart version you want to deploy (same or newer). 406 +11. Click **Upgrade**. 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.## 408 + 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. 410 + 411 +----- 412 + 413 +## Reverting the Migration (If Needed) 414 +If you want to move an app back to the old repository:## 415 + 416 +1. Temporarily disable the new OCI repo. 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. 421 + 422 +This will reconnect the app to the old repository. 423 + 424 +----- 425 + 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 + 368 368 = Automated deployments with Jenkins = 369 369 370 370 In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.