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Changes for page Rancher 2

Last modified by Diana Strebkova on 2026/04/20 09:21
From version 1.4
edited by Diana Strebkova
on 2025/12/08 15:08
Change comment: There is no comment for this version
To version 26.1
edited by Diana Strebkova
on 2026/04/20 09:19
Change comment: Removed references to chartmuseum

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158 158  
159 159  == Add public helm chart ==
160 160  
161 -{{warning width="70" title="Chartmuseum Deprecation"}}
162 -Chartmuseum is deprecated in new Harbor versions, we are migrating all helm charts to oci-compatible repositories in Harbor! New approach to add chart repositories in rancher.
163 -{{/warning}}
164 -
165 165  In this section, we describe (% style="color:#172b4d" %)how to add public helm charts like the one of DevOps-as-a-Service to a cluster to allow manual deployments.
166 166  
167 167  (% id="HCreateAppRepositoryinRancher" class="p1" %)
... ... @@ -177,7 +177,10 @@
177 177  (% class="p1" %)
178 178  [[image:attach:Screenshot 2023-04-25 at 13.30.33.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="127" width="1100"]]
179 179  
180 -(% class="p1" %)
176 +To add public oci-repository, navigate to repository create button and click it. For target, use OCI Repository like shown below:
177 +
178 +[[image:1765207154466-828.png||height="298" width="821"]]
179 +
181 181  In the "Repository: Create" dialog, simply fill in the following fields. Authentication is not required.
182 182  
183 183  (% class="wrapped" %)
... ... @@ -189,7 +189,7 @@
189 189  |=(((
190 190  Name
191 191  )))|(((
192 -devops-as-a-service
191 +devopsaas-jenkins-auto-agent
193 193  )))
194 194  |=(((
195 195  Description
... ... @@ -199,18 +199,19 @@
199 199  |=(((
200 200  Index URL
201 201  )))|(((
202 -[[https:~~/~~/registry.sdc.t-systems.net/chartrepo/devopsaas/>>url:https://registry.sdc.t-systems.net/chartrepo/devopsaas/||shape="rect"]]
203 -)))
201 +oci:~/~/registry.sdc.t-systems.net/devopsaas-helm/**<chartname>**, for example:
204 204  
205 -[[image:attach:image-2024-2-27_14-29-17.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" width="540"]]
203 +oci:~/~/registry.sdc.t-systems.net/devopsaas-helm/jenkins-auto-agent
206 206  
207 -(% class="p1" %)
208 -Finally, click Create.
205 +{{box}}
206 +Take into account, that all internal harbor repositories with helm charts have PKEY-helm naming convention, adding repo with both docker images and helm charts is not supported in rancher.
207 +{{/box}}
208 +)))
209 209  
210 -The repository is now listed:
210 +{{info}}
211 +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 need in adding the whole project with many repositories, please contact support for finding a possible solution.**//
212 +{{/info}}
211 211  
212 -[[image:Screenshot 2024-07-03 at 15.13.55.png||data-xwiki-image-style-border="true" height="149" width="785"]]
213 -
214 214  === Deploy Helm charts ===
215 215  
216 216  Now go to Apps>Charts and filter if necessary for the devops-as-a-service Helm chart repository. Like shown below, a list of available charts is displayed. Simply click on one of the tiles to deploy them to your cluster.
... ... @@ -221,12 +221,11 @@
221 221  
222 222  == Add private chart repository ==
223 223  
224 -
225 225  === Create a robot account in Harbor ===
226 226  
227 227  To add project specific helm charts to Rancher, a Harbor robot account is needed, that is able to read helm charts and pull repositories. If you don't have such an account yet, please follow the instructions given in the [[Create Robot Account section of the Harbor documentation>>doc:Harbor.Harbor 2\.7 Robot Accounts.WebHome||anchor="create_robot_account"]] and make sure to grant at least the following permissions:
228 228  
229 -* Read Helm Chart
228 +* Read Artifact
230 230  * Pull Repository
231 231  
232 232  (% id="HCreateAppRepositoryinRancher-1" class="p1" %)
... ... @@ -234,27 +234,145 @@
234 234  
235 235  (% class="p1" %)
236 236  In Rancher UI, switch to the intended cluster and go to Apps/Repositories using the left side menu.
236 +
237 237  [[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"]]
238 238  
239 239  (% class="p1" %)
240 240  Create a new Repository by pressing the Create button.
241 241  
242 -(% class="p1" %)
242 +(% class="p1" id="HTarget:http28s29URL-1" %)
243 243  [[image:attach:Screenshot 2023-04-25 at 13.30.33.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="127" width="1100"]]
244 -\\A name for the Repository has to be set. In the screenshot, the project name CITEST is used, which corresponds to our example from above.
245 -Choose http(s) URL to an index generated by Helm and provide the Index URL ##https:~/~/registry-<domain>.devops.t-systems.net/chartrepo/<project>/##
246 246  
245 +(% id="HTarget:http28s29URL-1" class="p1" %)
246 +==== ====
247 +
248 +{{info}}
249 +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.**//
250 +{{/info}}
251 +
247 247  (% class="p1" %)
248 -Replace ##<domain>## and ##<project>## as necessary to match your set-up.
253 +Choose OCI repository in Target and for url, use  ##oci:~/~/registry-<domain>.devops.t-systems.net/<project>-helm/<chartname>##
249 249  
255 +(% class="box" %)
256 +(((
257 +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.
258 +)))
259 +
250 250  (% class="p1" %)
251 251  For Authentication, select "Create a HTTP Basic Auth Secret" and provide the Username and Password of the Harbor robot account from the previous section.
252 -[[image:attach:Screenshot 2023-04-26 at 18.10.15.png||data-xwiki-image-style-border="true" queryparams="effects=drop-shadow" height="468" width="1100"]]
253 253  
254 -(% class="p1" %)
263 +(% class="wikigeneratedid" %)
264 +[[image:1765208347952-345.36.18.png||height="449" width="849"]]
265 +
266 +(% class="wikigeneratedid" %)
255 255  Click Create.
256 256  
269 +(% class="wrapped" %)
270 +|=(((
271 +Field
272 +)))|=(((
273 +Value
274 +)))
275 +|=(((
276 +Name
277 +)))|(((
278 +sdcloud-sdportal
279 +)))
280 +|=(((
281 +Description
282 +)))|(((
283 +Sdportal charts of sdcloud project
284 +)))
285 +|=(((
286 +Index URL
287 +)))|(((
288 +oci:~/~/registry.sdc.t-systems.net/sdcloud-helm/sdportal
257 257  
290 +{{info}}
291 +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.
292 +{{/info}}
293 +)))
294 +
295 +== Migrating chart repositories in rancher to new OCI Repository format ==
296 +
297 +(% class="box warningmessage" %)
298 +(((
299 +ChartMuseum is deprecated. **All harbor charts are removed from ChartMuseum**, and **old HTTP(S)-based chart repositories no longer work in Rancher (for internal harbor charts)**.
300 +)))
301 +
302 +(% class="box" %)
303 +(((
304 +**All your charts are available in the corresponding  `<pkey>-helm` OCI project.**
305 +)))
306 +
307 +There are two ways to migrate your repositories:
308 +
309 +1. ##Direct Transition (Editing the Existing Repository)##
310 +1*. Change the target to “OCI Repository”.
311 +1*. Update the URL as required (the repository name cannot be changed) and add a new robot account for helm project, check documentation above
312 +1*. After saving, installed apps will automatically start using the updated repository.
313 +1*. (% class="box" %)
314 +(((
315 +Important limitation: OCI repositories must point directly to a single chart repository, not to a parent folder.
316 +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”).
317 +The other charts will no longer receive updates through this repo, and you will still need to create additional repositories for each individual chart.
318 +)))
319 +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:
320 +1*. Create a new OCI repository for each chart,
321 +1*. Keep the old ChartMuseum repo enabled during the migration,
322 +1*. Migrate applications gradually following the steps described here.
323 +1*. This avoids disruptions and allows controlled migration.
324 +
325 +1. //Special Case: Old Repo Targeting Multiple Chart Repos//
326 +If your existing repository targets multiple chart repositories and you need the new OCI setup to behave the same way, please **contact support.**
327 +
328 +| Term | Meaning
329 +| **Old Repository** | The existing HTTP/HTTPS Harbor ChartMuseum repository.
330 +| **New Repository** | The new OCI-based Helm chart repository created for your project (e.g. `<chart-repo-name>` in `<pkey>-helm`).
331 +
332 +##__**Why This Migration Is Required:**__##
333 +
334 +* ##ChartMuseum is deprecated.##
335 +* ##Applications deployed from old repos keep a reference to that repo inside their labels.##
336 +* ##Without updating the application to point to the new OCI repo, **Rancher will not detect new chart versions from new repository**.##
337 +
338 +## Migration Steps:##
339 +
340 +1. ##Create the New OCI Repository in Rancher##
341 +11. Go to **Apps → Repositories**.
342 +11. Add a new repository of type **OCI**.
343 +11. Name it similarly to your old repo name (e.g. `<chart-repo-name>-oci`). __**You can't name it the same and can't rename it later.**__
344 +11. Point it to the new OCI endpoint.
345 +1. ##Disable the Old ChartMuseum Repository Temporarily## 
346 +##This step ensures that Rancher resolves charts from the new OCI repo.##
347 +11. Go to **Apps → Repositories**.
348 +11. Disable the old HTTP(S)-based repository.
349 +11. Keep it disabled until the migration is done.
350 +[[image:1765548124989-482.59.06.png||height="152" width="485"]]
351 +1. ##Update Existing Applications to Use the New OCI Repo##
352 +Applications deployed with the old repository still contain the old repo name in their metadata. You must upgrade them once to transition.
353 +11. Go to **Apps → Installed Apps**.
354 +11. Open the application that was deployed using the old repo.
355 +11. Click **Edit/Upgrade**.
356 +[[image:1765548598644-830.png||height="138" width="811"]]
357 +11. In the list of available chart repositories (scroll to the bottom), select the **new OCI repository**. Or enter the chart name in search bar:
358 +[[image:1765548750604-334.png||height="293" width="308"]]
359 +11. Choose the chart version you want to deploy (same or newer).
360 +11. Click **Upgrade**.
361 +1. ##Re-enable the Old Repository (Optional) ##
362 +If you still need the old repo for other apps, re-enable it after the migration steps above.
363 +**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
364 +
365 +##If you want to move an app back to the old repository:##
366 +
367 +1. Temporarily disable the new OCI repo.
368 +1. Enable the old ChartMuseum repo.
369 +1. Open the application → **Upgrade**.
370 +1. Select the chart from the old repo.
371 +1. Save.
372 +
373 +This will reconnect the app to the old repository.
374 +
258 258  = Automated deployments with Jenkins =
259 259  
260 260  In this section, we describe(% style="color:#172b4d" %) how to set-up **automated builds, tests and deployments** for Jenkins.
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