chore(deps): update dependency sigstore/cosign to v3

.gitea/workflows/artifacthub-metadata.yaml

@@ -30,7 +30,7 @@ jobs:
         oras push ${GITEA_SERVER_HOSTNAME}/${REPOSITORY_OWNER}/${REPOSITORY_NAME}:artifacthub.io \
           --config /dev/null:application/vnd.cncf.artifacthub.config.v1+yaml \
           artifacthub-repo.yml:application/vnd.cncf.artifacthub.repository-metadata.layer.v1.yaml
-    - name: Push public cosign key to ${GITEA_SERVER_HOSTNAME}
+    - name: Push public cosign key
       env:
         COSIGN_PUBLIC_KEY: ${{ vars.COSIGN_PUBLIC_KEY }}
       run: |

.gitea/workflows/generate-readme.yaml

@@ -15,7 +15,7 @@ on:
 jobs:
   generate-parameters:
     container:
-      image: docker.io/library/node:25.6.0-alpine
+      image: docker.io/library/node:25.6.1-alpine
     runs-on: ubuntu-latest
     steps:
     - name: Install tooling

.gitea/workflows/markdown-linters.yaml

@@ -15,7 +15,7 @@ on:
 jobs:
   markdown-link-checker:
     container:
-      image: docker.io/library/node:25.6.0-alpine
+      image: docker.io/library/node:25.6.1-alpine
     runs-on: ubuntu-latest
     steps:
     - name: Install tooling
@@ -30,7 +30,7 @@ jobs:
 
   markdown-lint:
     container:
-      image: docker.io/library/node:25.6.0-alpine
+      image: docker.io/library/node:25.6.1-alpine
     runs-on: ubuntu-latest
     steps:
     - name: Install tooling

.gitea/workflows/release.yaml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: sigstore/cosign-installer@v4.0.0
         with:
-          cosign-release: "v2.6.2" # renovate: datasource=github-tags depName=sigstore/cosign
+          cosign-release: "v3.0.4" # renovate: datasource=github-tags depName=sigstore/cosign
 
       - uses: azure/setup-helm@v4.3.1
         with:

Chart.yaml

@@ -8,7 +8,7 @@ annotations:
   artifacthub.io/operator: "false"
   artifacthub.io/prerelease: "false"
 apiVersion: v2
-appVersion: "0.18.1"
+appVersion: "0.19.0"
 description: Prometheus metric exporter for PostgreSQL
 home: https://git.cryptic.systems/volker.raschek/prometheus-postgres-exporter
 # icon: https://annotations.example.com/icon.png

README.md

@@ -23,7 +23,8 @@ separate [chapter](#argocd).
 
 ## Helm: configuration and installation
 
-1. A helm chart repository must be configured, to pull the helm charts from.
+1. A helm chart repository must be configured, to pull the helm charts from. The helm charts can either be pulled from
+   the classic helm chart repository or OCI registry.
 2. All available [parameters](#parameters) are documented in detail below. The parameters can be defined via the helm
    `--set` flag or directly as part of a `values.yaml` file. The following example defines the `prometheus-exporter`
    repository and use the `--set` flag for a basic deployment.
@@ -36,7 +37,7 @@ separate [chapter](#argocd).
 ```bash
 helm repo add prometheus-postgres-exporters https://git.cryptic.systems/prometheus-exporters
 helm repo update
-CHART_VERSION=0.5.5
+CHART_VERSION=0.5.6
 helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheus-exporters/prometheus-postgres-exporter \
   --set 'config.database.secret.databaseUsername=postgres' \
   --set 'config.database.secret.databasePassword=postgres' \
@@ -45,13 +46,25 @@ helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheu
   --set 'prometheus.metrics.serviceMonitor.enabled=true'
 ```
 
+Alternatively, the deployment of the helm charts can also be done via an OCI registry:
+
+```bash
+CHART_VERSION=0.5.6
+helm install "oci://git.cryptic.systems/volker.raschek/prometheus-postgres-exporter:${CHART_VERSION}" \
+  --set 'config.database.secret.databaseUsername=postgres' \
+  --set 'config.database.secret.databasePassword=postgres' \
+  --set 'config.database.secret.databaseConnectionUrl="postgres.example.local:5432/postgres?ssl=disable"' \
+  --set 'prometheus.metrics.enabled=true' \
+  --set 'prometheus.metrics.serviceMonitor.enabled=true'
+```
+
 Instead of passing all parameters via the *set* flag, it is also possible to define them as part of the `values.yaml`.
 The following command downloads the `values.yaml` for a specific version of this chart. Please keep in mind, that the
 version of the chart must be in sync with the `values.yaml`. Newer *minor* versions can have new features. New *major*
 versions can break something!
 
 ```bash
-CHART_VERSION=0.5.5
+CHART_VERSION=0.5.6
 helm show values --version "${CHART_VERSION}" prometheus-exporters/prometheus-postgres-exporter > values.yaml
 ```
 
@@ -89,7 +102,7 @@ Further information about this topic can be found in one of Kanishk's blog
 > Please take care the a CPU limit < `1000m` can also lead to CPU throttling. Please read the linked documentation carefully.
 
 ```bash
-CHART_VERSION=0.5.5
+CHART_VERSION=0.5.6
 helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheus-exporters/prometheus-postgres-exporter \
   --set 'config.database.secret.databaseUsername=postgres' \
   --set 'config.database.secret.databasePassword=postgres' \
@@ -111,7 +124,7 @@ certification will be skipped by Prometheus.
 > `tls.key` and `tls.crt` of the secret can be mounted into the container filesystem for TLS authentication / encryption.
 
 ```bash
-CHART_VERSION=0.5.5
+CHART_VERSION=0.5.6
 helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheus-exporters/prometheus-postgres-exporter \
   --set 'config.database.secret.databaseUsername=postgres' \
   --set 'config.database.secret.databasePassword=postgres' \
@@ -135,7 +148,7 @@ certificate for the metrics exporter - TLS certificate verification can be enabl
 replaced:
 
 ```diff
-  CHART_VERSION=0.5.5
+  CHART_VERSION=0.5.6
   helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheus-exporters/prometheus-postgres-exporter \
     --set 'config.database.secret.databaseUsername=postgres' \
     --set 'config.database.secret.databasePassword=postgres' \
@@ -189,7 +202,7 @@ the Grafana container file system so that it is subsequently available to the us
 makes this possible.
 
 ```bash
-CHART_VERSION=0.5.5
+CHART_VERSION=0.5.6
 helm install --version "${CHART_VERSION}" prometheus-postgres-exporter prometheus-exporters/prometheus-postgres-exporter \
   --set 'config.database.secret.databaseUsername=postgres' \
   --set 'config.database.secret.databasePassword=postgres' \

renovate.json

@@ -44,13 +44,6 @@
     }
   ],
   "packageRules": [
-    {
-      "groupName": "Update docker.io/volkerraschek/helm",
-      "matchDepNames": [
-        "docker.io/volkerraschek/helm",
-        "volkerraschek/helm"
-      ]
-    },
     {
       "automerge": true,
       "groupName": "Update helm plugin 'unittest'",