fix(httpRoute): avoid Argo CD drift

The following patch avoids a drift in Argo CD. Argo CD detects the missing
`group` of the backendRef.

.gitea/scripts/add-annotations.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -e
+set -eo pipefail
 
 CHART_FILE="Chart.yaml"
 if [ ! -f "${CHART_FILE}" ]; then
@@ -8,9 +8,9 @@ if [ ! -f "${CHART_FILE}" ]; then
   exit 1
 fi
 
-rc_pattern='-rc(\.[0-9]+)?$'
+rc_pattern="\-rc([-\.][0-9]+)?$"
 
-# Exclude prerelease tags (matching -rc or -rc-<digits>) from default tag selection
+# Exclude prerelease tags (matching -rc or -rc.<digits>) from default tag selection
 DEFAULT_NEW_TAG="$(git tag --sort=-version:refname | grep --invert-match --perl-regexp "${rc_pattern}" | head --lines 1)"
 DEFAULT_OLD_TAG="$(git tag --sort=-version:refname | grep --invert-match --perl-regexp "${rc_pattern}" | head --lines 2 | tail --lines 1)"
 

.gitea/workflows/release.yaml

@@ -71,8 +71,9 @@ jobs:
 
       - name: Add Artifacthub.io annotations
         run: |
-          NEW_TAG="$(git tag --sort=-version:refname | head -n 1)"
-          OLD_TAG="$(git tag --sort=-version:refname | head -n 2 | tail -n 1)"
+          rc_pattern="\-rc([-\.][0-9]+)?$"
+          NEW_TAG="$(git tag --sort=-version:refname | grep --invert-match --perl-regexp "${rc_pattern}" | head --lines 1)"
+          OLD_TAG="$(git tag --sort=-version:refname | grep --invert-match --perl-regexp "${rc_pattern}" | head --lines 2 | tail --lines 1)"
           .gitea/scripts/add-annotations.sh "${OLD_TAG}" "${NEW_TAG}"
 
       - name: Extract meta information

templates/httpRoute.yaml

@@ -24,7 +24,8 @@ spec:
   {{- end }}
   rules:
     - backendRefs:
-        - kind: Service
+        - group: ''
+          kind: Service
           name: {{ include "athens-proxy.service.name" . }}
           namespace: {{ .Release.Namespace }}
           port: {{ .Values.service.port }}

unittests/httpRoutes/httpRoute.yaml

@@ -92,6 +92,7 @@ tests:
   - contains:
       path: spec.rules[0].backendRefs
       content:
+        group: ''
         kind: Service
         name: athens-proxy-unittest
         namespace: testing