fix initial map (#497)

* fix initial map

* changelog

* go 1.18

* go 1.18

* revert the proto change

Makefile

@@ -7,7 +7,7 @@ PACKAGE_PATH:=github.com/solo-io/solo-kit
 OUTPUT_DIR ?= $(ROOTDIR)/_output
 SOURCES := $(shell find . -name "*.go" | grep -v test.go)
 
-GO_BUILD_FLAGS := GO111MODULE=on CGO_ENABLED=0 GOARCH=amd64
+GO_BUILD_FLAGS := GO111MODULE=on CGO_ENABLED=0
 
 #----------------------------------------------------------------------------------
 # Version, Release

changelog/v0.30.1/fix-emitter-initial-map.yaml

@@ -0,0 +1,6 @@
+changelog:
+  - type: FIX
+    issueLink: https://github.com/solo-io/gloo/issues/5554
+    resolvesIssue: false
+    description: >
+      Ensure that the emitter namespaced map is hydrated with the initial list data.

pkg/code-generator/codegen/templates/snapshot_emitter_template.go

@@ -178,6 +178,12 @@ func (c *{{ lower_camel .GoName }}Emitter) Snapshots(watchNamespaces []string, o
 
 	currentSnapshot := {{ .GoName }}Snapshot{}
 
+	{{- range .Resources}}
+	{{- if not .ClusterScoped }}
+			{{ lower_camel .PluralName }}ByNamespace := make(map[string]{{ .ImportPrefix }}{{ .Name }}List)
+	{{- end }}
+	{{- end }}
+
 	for _, namespace := range watchNamespaces {
 {{- range .Resources}}
 {{- if (not .ClusterScoped) }}
@@ -188,6 +194,7 @@ func (c *{{ lower_camel .GoName }}Emitter) Snapshots(watchNamespaces []string, o
 				return nil, nil, errors.Wrapf(err, "initial {{ .Name }} list")
 			}
 			initial{{ upper_camel .Name }}List = append(initial{{ upper_camel .Name }}List, {{ lower_camel .PluralName }}...)
+			{{ lower_camel .PluralName }}ByNamespace[namespace] = {{ lower_camel .PluralName }}
 		}
 		{{ lower_camel .Name }}NamespacesChan, {{ lower_camel .Name }}Errs, err := c.{{ lower_camel .Name }}.Watch(namespace, opts)
 		if err != nil {
@@ -282,11 +289,6 @@ func (c *{{ lower_camel .GoName }}Emitter) Snapshots(watchNamespaces []string, o
 			}
 		}
 
-		{{- range .Resources}}
-		{{- if not .ClusterScoped }}
-				{{ lower_camel .PluralName }}ByNamespace := make(map[string]{{ .ImportPrefix }}{{ .Name }}List)
-		{{- end }}
-		{{- end }}
 		defer func() {
 			close(snapshots)
 			// we must wait for done before closing the error chan,