cmd-push-container-manifest: add container tags pushed to meta.json

For FCOS, we'll eventually want to add the oscontainer image in the
stream metadata. We'll want it to be tag-based so that by default, users
always use the latest release.

Add a `tags` key to the image definition for this.

We include all the tags instead of just e.g. the first one, because I
think it's good practice to have `meta.json` reference all the external
resources that it pushed to. This is important for example for GC.

Author: jlebon

mantle/vendor/github.com/coreos/coreos-assembler/pkg/builds/cosa_v1.go

@@ -1,7 +1,7 @@
 package builds
 
 // generated by 'make schema'
-// source hash: 1e32ab25dfdd0724f8e8246008b9d91b88a40e9ea834cf779ab0da818bf1cf25
+// source hash: ce57421ef973f926c59065fd4eb122d5d22fe76681f952376091631178ce5dc1
 
 type AdvisoryDiff []AdvisoryDiffItems
 
@@ -148,6 +148,7 @@ type Image struct {
 	Comment string `json:"comment,omitempty"`
 	Digest  string `json:"digest,omitempty"`
 	Image   string `json:"image"`
+	Tags    []Tag  `json:"tags,omitempty"`
 }
 
 type Koji struct {
@@ -169,3 +170,5 @@ type S3 struct {
 	Key       string `json:"key,omitempty"`
 	PublicURL string `json:"public-url,omitempty"`
 }
+
+type Tag string

mantle/vendor/github.com/coreos/coreos-assembler/pkg/builds/schema_doc.go

@@ -1,5 +1,5 @@
 // Generated by ./generate-schema.sh
-// Source hash: 1e32ab25dfdd0724f8e8246008b9d91b88a40e9ea834cf779ab0da818bf1cf25
+// Source hash: ce57421ef973f926c59065fd4eb122d5d22fe76681f952376091631178ce5dc1
 // DO NOT EDIT
 
 package builds
@@ -60,6 +60,7 @@ var generatedSchemaJSON = `{
       ],
       "optional": [
         "digest",
+        "tags",
         "comment"
       ],
       "properties": {
@@ -77,6 +78,16 @@ var generatedSchemaJSON = `{
           "$id": "#/image/image",
           "type": "string",
           "title": "Image"
+        },
+        "tags": {
+          "$id": "#/image/tags",
+          "type": "array",
+          "title": "Tags",
+          "items": {
+            "$id": "#/image/tags/item",
+            "title": "Tag",
+            "type": "string"
+          }
         }
       }
     },

pkg/builds/cosa_v1.go

@@ -74,7 +74,8 @@ def main():
                 arch = 'x86_64'
             buildmetas[arch][args.metajsonname] = {
                 'image': args.repo,
-                'digest': manifest['digest']
+                'digest': manifest['digest'],
+                'tags': args.tags
             }
             buildmetas[arch].write(artifact_name=args.metajsonname)
 

pkg/builds/schema_doc.go

@@ -54,6 +54,7 @@
       ],
       "optional": [
         "digest",
+        "tags",
         "comment"
       ],
       "properties": {
@@ -71,6 +72,16 @@
           "$id": "#/image/image",
           "type": "string",
           "title": "Image"
+        },
+        "tags": {
+          "$id": "#/image/tags",
+          "type": "array",
+          "title": "Tags",
+          "items": {
+            "$id": "#/image/tags/item",
+            "title": "Tag",
+            "type": "string"
+          }
         }
       }
     },