Introduce v2beta1 and migrate v2alpha1 POST API calls to GET

Makefile

@@ -99,8 +99,13 @@ breaking: $(BUF)
 .PHONY: build
 build: $(BUF)
 	buf generate
+
+	sed -i'.bak' 's/"version": "version not set"/"version": "v2alpha1"/' release/openapi/swagger/src/api.swagger.json && rm -f release/openapi/swagger/src/api.swagger.json.bak
 	swagger flatten --with-flatten=remove-unused release/openapi/swagger/src/api.swagger.json -o release/openapi/swagger/src/api.swagger.json
 
+	sed -i'.bak' 's/"version": "version not set"/"version": "v2beta1"/' release/openapi/swagger/src/api_v2beta1.swagger.json && rm -f release/openapi/swagger/src/api_v2beta1.swagger.json.bak
+	swagger flatten --with-flatten=remove-unused release/openapi/swagger/src/api_v2beta1.swagger.json -o release/openapi/swagger/src/api_v2beta1.swagger.json
+
 # Make sure build is up to date
 .PHONY: check
 check: $(BUF)

buf.gen.yaml

@@ -30,3 +30,12 @@ plugins:
       - visibility_restriction_selectors=V2
       - merge_file_name=api
       - use_go_templates=true
+  - name: openapiv2
+    out: release/openapi/swagger/src
+    strategy: all
+    opt:
+      - generate_unbound_methods=true
+      - allow_merge
+      - visibility_restriction_selectors=v2beta1
+      - merge_file_name=api_v2beta1
+      - use_go_templates=true