docs(README): add an ArgoCD application resource as an example

This patch remove generation of a random string for the username and password of
the basic auth credentials.

The problem with the random generated basic auth credentials is, that this leads
to a new shasum of the secret. GitOps tools like ArgoCD detects a drift trigger
a rolling update.

To avoid this must now the basic auth credentials be defined to enable
prometheus metrics.

.gitea/workflows/generate-readme.yaml

@@ -15,7 +15,7 @@ on:
 jobs:
   generate-parameters:
     container:
-      image: docker.io/library/node:24.9.0-alpine
+      image: docker.io/library/node:24.10.0-alpine
     runs-on:
     - ubuntu-latest
     steps:

.gitea/workflows/markdown-linters.yaml

@@ -15,7 +15,7 @@ on:
 jobs:
   markdown-link-checker:
     container:
-      image: docker.io/library/node:24.9.0-alpine
+      image: docker.io/library/node:24.10.0-alpine
     runs-on:
     - ubuntu-latest
     steps:
@@ -31,7 +31,7 @@ jobs:
 
   markdown-lint:
     container:
-      image: docker.io/library/node:24.9.0-alpine
+      image: docker.io/library/node:24.10.0-alpine
     runs-on:
     - ubuntu-latest
     steps:

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "yaml.schemas": {
+    "https://raw.githubusercontent.com/helm-unittest/helm-unittest/v1.0.2/schema/helm-testsuite.json": [
+      "/unittests/**/*.yaml"
+    ]
+  },
+  "yaml.schemaStore.enable": true
+}

Makefile

@@ -4,13 +4,13 @@ CONTAINER_RUNTIME?=$(shell which podman)
 # HELM_IMAGE
 HELM_IMAGE_REGISTRY_HOST?=docker.io
 HELM_IMAGE_REPOSITORY?=volkerraschek/helm
-HELM_IMAGE_VERSION?=3.19.0 # renovate: datasource=docker registryUrl=https://docker.io depName=volkerraschek/helm
+HELM_IMAGE_VERSION?=3.19.0 # renovate: datasource=docker registryUrl=https://docker.io depName=docker.io/volkerraschek/helm
 HELM_IMAGE_FULLY_QUALIFIED=${HELM_IMAGE_REGISTRY_HOST}/${HELM_IMAGE_REPOSITORY}:${HELM_IMAGE_VERSION}
 
 # NODE_IMAGE
 NODE_IMAGE_REGISTRY_HOST?=docker.io
 NODE_IMAGE_REPOSITORY?=library/node
-NODE_IMAGE_VERSION?=24.9.0-alpine # renovate: datasource=docker registryUrl=https://docker.io depName=docker.io/library/node packageName=library/node
+NODE_IMAGE_VERSION?=24.10.0-alpine # renovate: datasource=docker registryUrl=https://docker.io depName=docker.io/library/node packageName=library/node
 NODE_IMAGE_FULLY_QUALIFIED=${NODE_IMAGE_REGISTRY_HOST}/${NODE_IMAGE_REPOSITORY}:${NODE_IMAGE_VERSION}
 
 # MISSING DOT
@@ -101,4 +101,4 @@ container-run/helm-lint:
 # ==============================================================================
 # Declare the contents of the PHONY variable as phony. We keep that information
 # in a variable so we can use it in if_changed.
-.PHONY: ${PHONY}
+.PHONY: ${PHONY}

README.md

@@ -37,7 +37,7 @@ version of the chart must be in sync with the `values.yaml`. Newer *minor* versi
 versions can break something!
 
 ```bash
-CHART_VERSION=0.2.0
+CHART_VERSION=0.3.0
 helm show values volker.raschek/reposilite --version "${CHART_VERSION}" > values.yaml
 ```
 
@@ -51,7 +51,7 @@ The helm chart also contains a persistent volume claim definition. It persistent
 Use the `--set` argument to persist your data.
 
 ```bash
-CHART_VERSION=0.2.0
+CHART_VERSION=0.3.0
 helm install --version "${CHART_VERSION}" reposilite volker.raschek/reposilite \
   persistentVolumeClaim.enabled=true
 ```
@@ -72,7 +72,7 @@ connection problems.
 > error.
 
 ```bash
-CHART_VERSION=0.2.0
+CHART_VERSION=0.3.0
 helm install --version "${CHART_VERSION}" reposilite volker.raschek/reposilite \
   --set 'deployment.reposilite.env[1].name=REPOSILITE_LOCAL_SSLENABLED' \
   --set 'deployment.reposilite.env[1].value="true"' \
@@ -122,6 +122,20 @@ deployment:
     secret.reloader.stakater.com/reload: "reposilite-tls"
 ```
 
+If the application is rolled out using ArgoCD, a rolling update from stakater's
+[reloader](https://github.com/stakater/Reloader) can lead to a drift. ArgoCD will attempt to restore the original state
+with a rolling update. To avoid this, instead of a rolling update triggered by the reloader, a restart of the pod can be
+initiated. Further information are available in the official
+[README](https://github.com/stakater/Reloader?tab=readme-ov-file#4-%EF%B8%8F-workload-specific-rollout-strategy) of
+stakater's reloader.
+
+```diff
+  deployment:
+    annotations:
+      reloader.stakater.com/auto: "true"
++     reloader.stakater.com/rollout-strategy: "restart"
+```
+
 #### Network policies
 
 Network policies can only take effect, when the used CNI plugin support network policies. The chart supports no custom
@@ -187,13 +201,62 @@ be set the credentials manually.
 The following example enable Prometheus metrics with custom basic auth credentials:
 
 ```bash
-CHART_VERSION=0.2.0
+CHART_VERSION=0.3.0
 helm install --version "${CHART_VERSION}" reposilite volker.raschek/reposilite \
   --set 'prometheus.metrics.enabled=true' \
   --set 'prometheus.metrics.basicAuthUsername=my-username' \
   --set 'prometheus.metrics.basicAuthUsername=my-password'
 ```
 
+## ArgoCD
+
+### Example Application
+
+An application resource for the Helm chart is defined below. It serves as an example for your own deployment.
+
+```yaml
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: reposilite
+  ignoreDifferences:
+  - group: apps
+    kind: Deployment
+    jqPathExpressions:
+    # When HPA is enabled, ensure that a modification of the replicas does not lead to a
+    # drift.
+      - '.spec.replicas'
+    # Ensure that changes of the annotations or environment variables added or modified by
+    # stakater's reloader does not lead to a drift.
+    - '.spec.template.metadata.annotations | with_entries(select(.key | startswith("reloader")))'
+    - '.spec.template.spec.containers[].env[] | select(.name | startswith("STAKATER_"))'
+  sources:
+  - repoURL: https://charts.cryptic.systems/volker.raschek
+    chart: reposilite
+    targetRevision: '0.*'
+    helm:
+      valueFiles:
+      - $values/values.yaml
+      releaseName: reposilite
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    managedNamespaceMetadata:
+      annotations: {}
+      labels: {}
+    syncOptions:
+    - ApplyOutOfSyncOnly=true
+    - CreateNamespace=true
+    - FailOnSharedResource=false
+    - Replace=false
+    - RespectIgnoreDifferences=false
+    - ServerSideApply=true
+    - Validate=true
+```
+
 ## Parameters
 
 ### Global

package-lock.json

@@ -1078,9 +1078,9 @@
       }
     },
     "node_modules/link-check": {
-      "version": "5.4.0",
-      "resolved": "https://registry.npmjs.org/link-check/-/link-check-5.4.0.tgz",
-      "integrity": "sha512-0Pf4xBVUnwJdbDgpBlhHNmWDtbVjHTpIFs+JaBuIsC9PKRxjv4KMGCO2Gc8lkVnqMf9B/yaNY+9zmMlO5MyToQ==",
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/link-check/-/link-check-5.5.0.tgz",
+      "integrity": "sha512-CpMk2zMfyEMdDvFG92wO5pU/2I/wbw72/9pvUFhU9cDKkwhmVlPuvxQJzd/jXA2iVOgNgPLnS5zyOLW7OzNpdA==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -1137,16 +1137,16 @@
       }
     },
     "node_modules/markdown-link-check": {
-      "version": "3.13.7",
-      "resolved": "https://registry.npmjs.org/markdown-link-check/-/markdown-link-check-3.13.7.tgz",
-      "integrity": "sha512-Btn3HU8s2Uyh1ZfzmyZEkp64zp2+RAjwfQt1u4swq2Xa6w37OW0T2inQZrkSNVxDSa2jSN2YYhw/JkAp5jF1PQ==",
+      "version": "3.14.1",
+      "resolved": "https://registry.npmjs.org/markdown-link-check/-/markdown-link-check-3.14.1.tgz",
+      "integrity": "sha512-h1tihNL3kmOS3N7H4FyF4xKDxiHnNBNSgs/LWlDiRHlC8O0vfRX0LhDDvesRSs4HM7nS0F658glLxonaXBmuWw==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
         "async": "^3.2.6",
         "chalk": "^5.3.0",
-        "commander": "^13.1.0",
-        "link-check": "^5.4.0",
+        "commander": "^14.0.0",
+        "link-check": "^5.5.0",
         "markdown-link-extractor": "^4.0.2",
         "needle": "^3.3.1",
         "progress": "^2.0.3",
@@ -1157,6 +1157,16 @@
         "markdown-link-check": "markdown-link-check"
       }
     },
+    "node_modules/markdown-link-check/node_modules/commander": {
+      "version": "14.0.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.1.tgz",
+      "integrity": "sha512-2JkV3gUZUVrbNA+1sjBOYLsMZ5cEEl8GTFP2a4AVz5hvasAMCQ1D2l2le/cX+pV4N6ZU17zjUahLpIXRrnWL8A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/markdown-link-extractor": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/markdown-link-extractor/-/markdown-link-extractor-4.0.2.tgz",

renovate.json

@@ -9,6 +9,7 @@
   ],
   "customManagers": [
     {
+      "customType": "regex",
       "fileMatch": [
         "^Chart\\.yaml$"
       ],
@@ -21,7 +22,10 @@
       "versioningTemplate": "semver"
     },
     {
-      "fileMatch": ["^README\\.md$"],
+      "customType": "regex",
+      "fileMatch": [
+        "^README\\.md$"
+      ],
       "matchStrings": [
         "CHART_VERSION=(?<currentValue>.*)"
       ],
@@ -29,9 +33,47 @@
       "packageNameTemplate": "https://git.cryptic.systems/volker.raschek/reposilite-charts",
       "datasourceTemplate": "git-tags",
       "versioningTemplate": "semver"
+    },
+    {
+      "customType": "regex",
+      "datasourceTemplate": "github-releases",
+      "fileMatch": [
+        ".vscode/settings\\.json$"
+      ],
+      "matchStrings": [
+        "https:\\/\\/raw\\.githubusercontent\\.com\\/(?<depName>[^\\s]+?)\\/(?<currentValue>v[0-9.]+?)\\/schema\\/helm-testsuite\\.json"
+      ]
     }
   ],
   "packageRules": [
+    {
+      "groupName": "Update docker.io/volkerraschek/helm",
+      "matchDepNames": [
+        "docker.io/volkerraschek/helm",
+        "volkerraschek/helm"
+      ]
+    },
+    {
+      "automerge": true,
+      "groupName": "Update helm plugin 'unittest'",
+      "matchDepNames": [
+        "helm-unittest/helm-unittest"
+      ],
+      "matchDatasources": [
+        "github-releases"
+      ],
+      "matchUpdateTypes": [
+        "minor",
+        "patch"
+      ]
+    },
+    {
+      "groupName": "Update docker.io/library/node",
+      "matchDepNames": [
+        "docker.io/library/node",
+        "library/node"
+      ]
+    },
     {
       "addLabels": [
         "renovate/automerge",
@@ -76,4 +118,4 @@
     ],
     "executionMode": "update"
   }
-}
+}

templates/secretPrometheusBasicAuth.yaml

@@ -14,6 +14,6 @@ metadata:
   name: {{ include "reposilite.secrets.prometheusBasicAuth.name" . }}
   namespace: {{ .Release.Namespace }}
 stringData:
-  password: {{ default (randAlphaNum 16) .Values.prometheus.metrics.secret.new.basicAuthPassword }}
-  username: {{ default (randAlphaNum 16) .Values.prometheus.metrics.secret.new.basicAuthUsername }}
+  password: {{ required "Password for basic auth is required!" .Values.prometheus.metrics.secret.new.basicAuthPassword }}
+  username: {{ required "Username for basic auth is required!" .Values.prometheus.metrics.secret.new.basicAuthUsername }}
 {{- end }}

unittests/deployment/prometheusPodMonitor.yaml

@@ -13,6 +13,8 @@ tests:
   set:
     prometheus.metrics.enabled: true
     prometheus.metrics.podMonitor.enabled: true
+    prometheus.metrics.secret.new.basicAuthPassword: "my-password"
+    prometheus.metrics.secret.new.basicAuthUsername: "my-username"
   asserts:
   - exists:
       path: spec.template.metadata.annotations.checksum/secret-reposilite-unittest-basic-auth-credentials

unittests/deployment/prometheusServiceMonitor.yaml

@@ -13,6 +13,8 @@ tests:
   set:
     prometheus.metrics.enabled: true
     prometheus.metrics.serviceMonitor.enabled: true
+    prometheus.metrics.secret.new.basicAuthPassword: "my-password"
+    prometheus.metrics.secret.new.basicAuthUsername: "my-username"
   asserts:
   - exists:
       path: spec.template.metadata.annotations.checksum/secret-reposilite-unittest-basic-auth-credentials

unittests/secrets/basicAuth.yaml

@@ -13,9 +13,29 @@ tests:
   - hasDocuments:
       count: 0
 
+- it: Throw error for missing basic auth password
+  set:
+    prometheus.metrics.enabled: true
+    # prometheus.metrics.secret.new.basicAuthPassword: "my-password"
+    prometheus.metrics.secret.new.basicAuthUsername: "my-username"
+  asserts:
+    - failedTemplate:
+        errorMessage: "Password for basic auth is required!"
+
+- it: Throw error for missing basic auth username
+  set:
+    prometheus.metrics.enabled: true
+    prometheus.metrics.secret.new.basicAuthPassword: "my-password"
+    # prometheus.metrics.secret.new.basicAuthUsername: "my-username"
+  asserts:
+    - failedTemplate:
+        errorMessage: "Username for basic auth is required!"
+
 - it: Rendering secret with default values.
   set:
     prometheus.metrics.enabled: true
+    prometheus.metrics.secret.new.basicAuthPassword: "my-password"
+    prometheus.metrics.secret.new.basicAuthUsername: "my-username"
   asserts:
   - hasDocuments:
       count: 1
@@ -51,13 +71,13 @@ tests:
   asserts:
   - hasDocuments:
       count: 1
-  - exists:
+  - isSubset:
       path: metadata.annotations
-      value:
+      content:
         foo: bar
-  - exists:
+  - isSubset:
       path: metadata.labels
-      value:
+      content:
         bar: foo
   - equal:
       path: metadata.name

unittests/serviceAccount/serviceAccount.yaml

@@ -53,13 +53,13 @@ tests:
   asserts:
   - hasDocuments:
       count: 1
-  - exists:
+  - isSubset:
       path: metadata.annotations
-      value:
+      content:
         foo: bar
-  - exists:
+  - isSubset:
       path: metadata.labels
-      value:
+      content:
         bar: foo
   - equal:
       path: metadata.name

unittests/services/service.yaml

@@ -78,35 +78,35 @@ tests:
     service.internalTrafficPolicy: ""
   asserts:
   - failedTemplate:
-    errorMessage: No internal traffic policy defined!
+      errorMessage: No internal traffic policy defined!
 
 - it: Require port.
   set:
     service.port: ""
   asserts:
   - failedTemplate:
-    errorMessage: No service port defined!
+      errorMessage: No service port defined!
 
 - it: Require scheme.
   set:
     service.scheme: ""
   asserts:
   - failedTemplate:
-    errorMessage: No service scheme defined!
+      errorMessage: The scheme of the serviceMonitor is not defined!
 
 - it: Require sessionAffinity.
   set:
     service.sessionAffinity: ""
   asserts:
   - failedTemplate:
-    errorMessage: No session affinity defined!
+      errorMessage: No session affinity defined!
 
 - it: Require service type.
   set:
     service.type: ""
   asserts:
   - failedTemplate:
-    errorMessage: No service type defined!
+      errorMessage: No service type defined!
 
 - it: Render service with custom annotations and labels.
   set: