Fix annotation/label filter setting (#3008)

* fix how options are loaded by removing special casing

* oop

* chlog

* update to specific test

* oop

.chloggen/fix-annot-again.yaml

@@ -0,0 +1,19 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. collector, target allocator, auto-instrumentation, opamp, github action)
+component: collector
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Fixes a bug that was preventing regexes from being loaded correctly. Now the filter provide is exactly what's used.
+
+# One or more tracking issues related to the change
+issues: [3007]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: |
+  This is technically a breaking change if a user relied on the previously broken regex functionality.
+  This change will actually fix their regex to work where it didn't before. I expect that users would rather their
+  regexes work than break silently.

.github/workflows/e2e.yaml

@@ -40,7 +40,7 @@ jobs:
          - group: e2e-multi-instrumentation
            setup: "add-multi-instrumentation-params prepare-e2e"
          - group: e2e-metadata-filters
-           setup: "add-operator-arg OPERATOR_ARG='--annotations-filter=.*filter.out --labels=.*filter.out' prepare-e2e"
+           setup: "add-operator-arg OPERATOR_ARG='--annotations-filter=.*filter.out --annotations-filter=config.*.gke.io.* --labels=.*filter.out' prepare-e2e"
          - group: e2e-automatic-rbac
            setup: "add-rbac-permissions-to-operator prepare-e2e"
     steps:

internal/config/options.go

@@ -15,9 +15,6 @@
 package config
 
 import (
-	"regexp"
-	"strings"
-
 	"github.com/go-logr/logr"
 	"go.uber.org/zap/zapcore"
 
@@ -211,24 +208,7 @@ func WithRBACPermissions(rAuto autoRBAC.Availability) Option {
 
 func WithLabelFilters(labelFilters []string) Option {
 	return func(o *options) {
-
-		filters := []string{}
-		for _, pattern := range labelFilters {
-			var result strings.Builder
-
-			for i, literal := range strings.Split(pattern, "*") {
-
-				// Replace * with .*
-				if i > 0 {
-					result.WriteString(".*")
-				}
-				// Quote any regular expression meta characters in the
-				// literal text.
-				result.WriteString(regexp.QuoteMeta(literal))
-			}
-			filters = append(filters, result.String())
-		}
-		o.labelsFilter = filters
+		o.labelsFilter = append(o.labelsFilter, labelFilters...)
 	}
 }
 
@@ -237,23 +217,7 @@ func WithLabelFilters(labelFilters []string) Option {
 // * kubectl.kubernetes.io/last-applied-configuration.
 func WithAnnotationFilters(annotationFilters []string) Option {
 	return func(o *options) {
-		filters := o.annotationsFilter
-		for _, pattern := range annotationFilters {
-			var result strings.Builder
-
-			for i, literal := range strings.Split(pattern, "*") {
-
-				// Replace * with .*
-				if i > 0 {
-					result.WriteString(".*")
-				}
-				// Quote any regular expression meta characters in the
-				// literal text.
-				result.WriteString(regexp.QuoteMeta(literal))
-			}
-			filters = append(filters, result.String())
-		}
-		o.annotationsFilter = filters
+		o.annotationsFilter = append(o.annotationsFilter, annotationFilters...)
 	}
 }
 

tests/e2e-metadata-filters/annotations/00-error.yaml

@@ -4,6 +4,7 @@ metadata:
   name: test-annotations-collector
   annotations:
     annotation.filter.out: "true"
+    configmanagement.gke.io/token: "asdfasdf"
 spec:
   updateStrategy:
     rollingUpdate:

tests/e2e-metadata-filters/annotations/00-install.yaml

@@ -4,6 +4,7 @@ metadata:
   name: test-annotations
   annotations:
     annotation.filter.out: "true"
+    configmanagement.gke.io/token: "asdfasdf"
 spec:
   mode: daemonset
   config: |