Implement images limit (#4)

* Implement image limits Signed-off-by: Andrea Mazzotti <andrea.mazzotti@suse.com> * Add documentation Signed-off-by: Andrea Mazzotti <andrea.mazzotti@suse.com> --------- Signed-off-by: Andrea Mazzotti <andrea.mazzotti@suse.com>
rancher · Jun 11, 2024 · 127347a · 127347a
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diff --git a/README.md b/README.md
@@ -1,2 +1,41 @@
-# elemental-channels
-A repository to maintain and publish Elemental image channels
+# Elemental Channels
+
+[Elemental Channels](https://elemental.docs.rancher.com/next/channels) can be used to publish a list of container images to be used by the [Elemental Operator](https://elemental.docs.rancher.com).  
+
+This repository automates and facilitates the creation of the officially distributed Elemental channels.  
+
+## Goals for this repository
+
+1. Be the single source of truth for all channel .json files that need to be published by the Elemental team
+1. Automatically refresh the channels watching container registries (Daily)
+1. (Optional) Publish images on GitHub, for development or testing
+
+## Repository Watches config
+
+The [config.yaml](./config.yaml) can be updated using the following structure:
+
+```yaml
+watches: 
+    # A flavor for the Base OS being watched. Can be "" for unflavored images.
+    # This will be used as a prefix to distinguish same versions of different flavors.
+  - flavor: "my-flavor"
+    # The resulting .json filename on the ./channels directory
+    fileName: "sle-micro-5-5-my-flavor"
+    # The OS human readable name
+    displayName: "SLE Micro 5.5 My Flavor"
+    # The repository containing the "os" type images
+    osRepo: registry.suse.com/suse/sle-micro/my-flavor-5.5
+    # The repository containing the "iso" type images.
+    # If this is not applicable, use "N/A"
+    isoRepo: registry.suse.com/suse/sle-micro-iso/my-flavor-5.5
+    # How many images to limit per (minor) version.
+    limit: 3
+```
+
+## Usage
+
+It is possible, at any moment, to run the `.refresh_channels.sh` script and integrate the changes, if any.  
+A GitHub [workflow](.github/workflows/refresh-channels.yaml) does it automatically every night, and optionally it can be triggered at any time.  
+
+Manually crated `.json` files can be directly created and maintained in the `./channels` directory, for example to maintain a channel containing arbitrary images, for development or testing.  
+When this is the case, be mindful of not creating collision with the automated [config.yaml](./config.yaml), otherwise files with the same name will be overwritten.  
diff --git a/channels/sle-micro-5-5-kvm.json b/channels/sle-micro-5-5-kvm.json
@@ -14,26 +14,26 @@
     },
     {
         "metadata": {
-            "name": "kvm-v2.0.2-2.2.20-os"
+            "name": "kvm-v2.0.2-2.2.85-os"
         },
         "spec": {
-            "version": "v2.0.2-2.2.20",
+            "version": "v2.0.2-2.2.85",
             "type": "container",
             "metadata": {
-                "upgradeImage": "registry.suse.com/suse/sle-micro/kvm-5.5:2.0.2-2.2.20",
+                "upgradeImage": "registry.suse.com/suse/sle-micro/kvm-5.5:2.0.2-2.2.85",
                 "displayName": "SLE Micro KVM 5.5 OS"
             }
         }
     },
     {
         "metadata": {
-            "name": "kvm-v2.0.2-2.2.85-os"
+            "name": "kvm-v2.0.2-2.2.20-os"
         },
         "spec": {
-            "version": "v2.0.2-2.2.85",
+            "version": "v2.0.2-2.2.20",
             "type": "container",
             "metadata": {
-                "upgradeImage": "registry.suse.com/suse/sle-micro/kvm-5.5:2.0.2-2.2.85",
+                "upgradeImage": "registry.suse.com/suse/sle-micro/kvm-5.5:2.0.2-2.2.20",
                 "displayName": "SLE Micro KVM 5.5 OS"
             }
         }

diff --git a/channels/sle-micro-5-5-rt.json b/channels/sle-micro-5-5-rt.json
@@ -14,26 +14,26 @@
     },
     {
         "metadata": {
-            "name": "rt-v2.0.2-3.2.23-os"
+            "name": "rt-v2.0.2-3.2.86-os"
         },
         "spec": {
-            "version": "v2.0.2-3.2.23",
+            "version": "v2.0.2-3.2.86",
             "type": "container",
             "metadata": {
-                "upgradeImage": "registry.suse.com/suse/sle-micro/rt-5.5:2.0.2-3.2.23",
+                "upgradeImage": "registry.suse.com/suse/sle-micro/rt-5.5:2.0.2-3.2.86",
                 "displayName": "SLE Micro RT 5.5 OS"
             }
         }
     },
     {
         "metadata": {
-            "name": "rt-v2.0.2-3.2.86-os"
+            "name": "rt-v2.0.2-3.2.23-os"
         },
         "spec": {
-            "version": "v2.0.2-3.2.86",
+            "version": "v2.0.2-3.2.23",
             "type": "container",
             "metadata": {
-                "upgradeImage": "registry.suse.com/suse/sle-micro/rt-5.5:2.0.2-3.2.86",
+                "upgradeImage": "registry.suse.com/suse/sle-micro/rt-5.5:2.0.2-3.2.23",
                 "displayName": "SLE Micro RT 5.5 OS"
             }
         }