regindexer: create two sets of indexes

Flatpak-1.6 expects metadata to be stored in Docker-compatible labels
rather than OCI annotations. We build Flatpaks for Fedora with both
labels and annotations for compatibility with older and newer Flatpaks,
but we also need to have two sets of indexes:

 - One that is served in response to a query for labels, and skips
   including Flatpak annotations in the response (to reduce size)
 - One that is served in response to a query for annotation, and skips
   including Flatpak labels in the response.

This commit requires regindexer-1.6. See:

 https://pagure.io/fedora-infrastructure/issue/8579

Signed-off-by: Owen W. Taylor <otaylor@fishsoup.net>

roles/httpd/reverseproxy/templates/reversepassproxy.registry-generic.conf

@@ -25,17 +25,33 @@ RewriteCond "&%{QUERY_STRING}" &tag=testing
 RewriteCond "&%{QUERY_STRING}" &architecture=([^&]+)
 RewriteRule "^/index/static$" /index/flatpak-testing-%1.json [L,PT]
 
+RewriteCond "&%{QUERY_STRING}" &label(%3A|:)org.flatpak.ref(%3A|:)exists=1
+RewriteCond "&%{QUERY_STRING}" &tag=testing
+RewriteCond "&%{QUERY_STRING}" &architecture=([^&]+)
+RewriteRule "^/index/static$" /index/flatpak-testing-%1-labels.json [L,PT]
+
 RewriteCond "&%{QUERY_STRING}" &annotation(%3A|:)org.flatpak.ref(%3A|:)exists=1
 RewriteCond "&%{QUERY_STRING}" &architecture=([^&]+)
 RewriteRule "^/index/static$" /index/flatpak-%1.json [L,PT]
 
+RewriteCond "&%{QUERY_STRING}" &label(%3A|:)org.flatpak.ref(%3A|:)exists=1
+RewriteCond "&%{QUERY_STRING}" &architecture=([^&]+)
+RewriteRule "^/index/static$" /index/flatpak-%1-labels.json [L,PT]
+
 RewriteCond "&%{QUERY_STRING}" &annotation(%3A|:)org.flatpak.ref(%3A|:)exists=1
 RewriteCond "&%{QUERY_STRING}" &tag=testing
 RewriteRule "^/index/static$" /index/flatpak-testing.json [L,PT]
 
+RewriteCond "&%{QUERY_STRING}" &label(%3A|:)org.flatpak.ref(%3A|:)exists=1
+RewriteCond "&%{QUERY_STRING}" &tag=testing
+RewriteRule "^/index/static$" /index/flatpak-testing-labels.json [L,PT]
+
 RewriteCond "&%{QUERY_STRING}" &annotation(%3A|:)org.flatpak.ref(%3A|:)exists=1
 RewriteRule "^/index/static$" /index/flatpak.json [L,PT]
 
+RewriteCond "&%{QUERY_STRING}" &label(%3A|:)org.flatpak.ref(%3A|:)exists=1
+RewriteRule "^/index/static$" /index/flatpak-labels.json [L,PT]
+
 DocumentRoot /srv/web/registry-index/
 
 <Directory /srv/web/registry-index>

roles/regindexer/build/templates/config.yaml

@@ -7,6 +7,15 @@ indexes:
         registry_public: /
         tags: ['latest']
         required_annotations: ['org.flatpak.ref']
+        skip_flatpak_labels: True
+        extract_icons: True
+    flatpak_labels:
+        output: /var/lib/regindexer/index/flatpak-labels.json
+        registry: https://registry{{ env_suffix }}.fedoraproject.org
+        registry_public: /
+        tags: ['latest']
+        required_labels: ['org.flatpak.ref']
+        skip_flatpak_annotations: True
         extract_icons: True
     flatpak_testing:
         output: /var/lib/regindexer/index/flatpak-testing.json
@@ -14,6 +23,15 @@ indexes:
         registry_public: /
         tags: ['testing']
         required_annotations: ['org.flatpak.ref']
+        skip_flatpak_labels: True
+        extract_icons: True
+    flatpak_testing_labels:
+        output: /var/lib/regindexer/index/flatpak-testing-labels.json
+        registry: https://registry{{ env_suffix }}.fedoraproject.org
+        registry_public: /
+        tags: ['testing']
+        required_labels: ['org.flatpak.ref']
+        skip_flatpak_annotations: True
         extract_icons: True
     flatpak_amd64:
         output: /var/lib/regindexer/index/flatpak-amd64.json
@@ -22,6 +40,16 @@ indexes:
         tags: ['latest']
         required_annotations: ['org.flatpak.ref']
         architectures: ['amd64']
+        skip_flatpak_labels: True
+        extract_icons: True
+    flatpak_amd64_labels:
+        output: /var/lib/regindexer/index/flatpak-amd64-labels.json
+        registry: https://registry{{ env_suffix }}.fedoraproject.org
+        registry_public: /
+        tags: ['latest']
+        required_labels: ['org.flatpak.ref']
+        architectures: ['amd64']
+        skip_flatpak_annotations: True
         extract_icons: True
     flatpak_testing_amd64:
         output: /var/lib/regindexer/index/flatpak-testing-amd64.json
@@ -30,6 +58,16 @@ indexes:
         tags: ['testing']
         required_annotations: ['org.flatpak.ref']
         architectures: ['amd64']
+        skip_flatpak_labels: True
+        extract_icons: True
+    flatpak_testing_amd64_labels:
+        output: /var/lib/regindexer/index/flatpak-testing-amd64-labels.json
+        registry: https://registry{{ env_suffix }}.fedoraproject.org
+        registry_public: /
+        tags: ['testing']
+        required_labels: ['org.flatpak.ref']
+        architectures: ['amd64']
+        skip_flatpak_annotations: True
         extract_icons: True
 daemon: 
     topic_prefix: org.fedoraproject