Pin test examples to alpine v3.22 due to ongoing usr-merge effort (#1902)

Alpine is implementing usr-merge upstream and that is breaking
assumptions in our current implementation. To avoid blocking on issues
on edge s the implementation is going on upstream, this pins the
respective examples that use `alpine-base` to v3.22.

Author: markusthoemmes

README.md

@@ -47,7 +47,7 @@ An apko file for building an Alpine base image looks like this:
 ```yaml
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
 

docs/apko_file.md

@@ -12,7 +12,7 @@ This is easier to understand by looking at a simple example:
 ```yaml
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
 
@@ -42,7 +42,7 @@ The following example builds an nginx image and covers the full range of apko fe
 ```yaml
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-baselayout
     - nginx

examples/alpine-amd64.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
 

examples/alpine-base-rootless.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
 

examples/alpine-base.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
 

examples/alpine-python3.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-base
     - python3

examples/alpine-slim.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-baselayout-data
     - apk-tools

examples/apko-devenv.yaml

@@ -20,8 +20,8 @@
 #
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
-    - https://dl-cdn.alpinelinux.org/alpine/edge/community
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/community
   packages:
     - alpine-base
     - go

examples/nginx-rootless.yaml

@@ -1,6 +1,6 @@
 contents:
   repositories:
-    - https://dl-cdn.alpinelinux.org/alpine/edge/main
+    - https://dl-cdn.alpinelinux.org/alpine/v3.22/main
   packages:
     - alpine-baselayout
     - nginx