imagebuilder: use APK feed on snapshot

roles/cfg_openwrt/files/falter.snapshot.pem

@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEE1NSmLpdMjXJpDQki9ziqW3Ve0aIX99t
+uAc1Yn5TexwhBhHsGxUxICHS63pDXYj9xg1AZHlvbEnFrBNrsdjJQQ==
+-----END PUBLIC KEY-----

roles/cfg_openwrt/tasks/imagebuilder.yml

@@ -72,24 +72,37 @@
     instr_set: "{{ instr_set_result.stdout_lines | first }}"
   when: 'instr_set is not defined and feed_version is defined'
 
-- name: Insert falter feed
+- name: Insert falter opkg feed
   lineinfile:
     path: "{{ build_dir }}/repositories.conf"
     line: "{{ feed | replace('__INSTR_SET__', instr_set) | replace('__FEED_VERSION__', feed_version) }}"
-  when: 'feed_version is defined'
+  when: 'feed_version is defined and openwrt_version != "snapshot"'
+
+- name: Insert falter apk feed
+  lineinfile:
+    path: "{{ build_dir }}/repositories"
+    line: "{{ feed | replace('__INSTR_SET__', instr_set) | replace('__FEED_VERSION__', feed_version) }}"
+  when: 'feed_version is defined and openwrt_version == "snapshot"'
 
 - name: Define Key-Dir
   stat:
     path: "{{ build_dir }}/keys/"
   register: keydir
 
-- name: Add falter feed key
+- name: Add falter opkg feed key
   copy:
     src: "files/packagefeed_master.pub"
     dest: "{{ build_dir }}/keys/61a078a38408e710"  # matches fingerprint
     mode: "preserve"
   when: 'feed_version is defined and keydir.stat.exists'
 
+- name: Add falter apk feed key
+  copy:
+    src: "files/falter.snapshot.pem"
+    dest: "{{ build_dir }}/keys/"
+    mode: "preserve"
+  when: 'feed_version is defined and keydir.stat.exists'
+
 - name: Disable Signature verification if required
   lineinfile:
     path: "{{ build_dir }}/repositories.conf"