NG: secret manager and VW

k8s-ng/external-secrets/Dockerfile-bitwarden-cli

@@ -0,0 +1,26 @@
+FROM debian:sid
+
+ENV BW_CLI_VERSION=2025.12.1
+
+RUN apt update && \
+    apt install -y wget unzip && \
+    wget https://github.com/bitwarden/clients/releases/download/cli-v${BW_CLI_VERSION}/bw-linux-${BW_CLI_VERSION}.zip && \
+    unzip bw-linux-${BW_CLI_VERSION}.zip && \
+    chmod +x bw && \
+    mv bw /usr/local/bin/bw && \
+    rm -rfv *.zip && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Build entrypoint script
+RUN echo '#!/bin/sh\n\
+set -e\n\
+bw config server ${BW_HOST}\n\
+export BW_SESSION=$(bw login ${BW_USER} --passwordenv BW_PASSWORD --raw)\n\
+bw unlock --check\n\
+echo "Running \`bw server\` on port 8087"\n\
+bw serve --hostname 0.0.0.0\n' > /entrypoint.sh && \
+    chmod +x /entrypoint.sh
+
+CMD ["/entrypoint.sh"]
+

k8s-ng/external-secrets/app.yaml

@@ -0,0 +1,21 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: external-secrets
+  namespace: argocd
+spec:
+  project: core
+  destination:
+    namespace: external-secrets
+    server: https://kubernetes.default.svc
+  source:
+    repoURL: https://gt.hexor.cy/ab/homelab.git
+    targetRevision: main
+    path: k8s-ng/external-secrets
+  syncPolicy:
+    automated:
+      selfHeal: true
+      prune: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true

k8s-ng/external-secrets/bitwarden-store.yaml

@@ -0,0 +1,153 @@
+# ---
+# apiVersion: v1
+# kind: Secret
+# metadata:
+#   name: bitwarden-cli
+#   namespace: external-secrets
+# data:
+#   BW_HOST: base64(url)
+#   BW_USERNAME: base64(name)
+#   BW_PASSWORD: base64(pass)
+# Vaultwarden bot - 81212111-6350-4069-8bcf-19a67d3964a5
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: bitwarden-cli
+  labels:
+    reloader.stakater.com/auto: "true"
+    app.kubernetes.io/instance: bitwarden-cli
+    app.kubernetes.io/name: bitwarden-cli
+spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: bitwarden-cli
+      app.kubernetes.io/instance: bitwarden-cli
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: bitwarden-cli
+        app.kubernetes.io/instance: bitwarden-cli
+    spec:
+      nodeSelector:
+        kubernetes.io/arch: amd64
+      containers:
+        - name: bitwarden-cli
+          image: ultradesu/bitwarden-client:2025.12.1
+          imagePullPolicy: Always
+          resources:
+            requests:
+              memory: "128Mi"
+              cpu: "300m"
+            limits:
+              memory: "512Mi"
+              cpu: "1000m"
+          env:
+            - name: BW_HOST
+              valueFrom:
+                secretKeyRef:
+                  name: bitwarden-cli
+                  key: BW_HOST
+            - name: BW_USER
+              valueFrom:
+                secretKeyRef:
+                  name: bitwarden-cli
+                  key: BW_USERNAME
+            - name: BW_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: bitwarden-cli
+                  key: BW_PASSWORD
+          ports:
+            - name: http
+              containerPort: 8087
+              protocol: TCP
+          livenessProbe:
+            exec:
+              command:
+                - wget
+                - -q
+                - http://127.0.0.1:8087/sync
+                - --post-data=''
+            initialDelaySeconds: 20
+            failureThreshold: 3
+            timeoutSeconds: 1
+            periodSeconds: 120
+          readinessProbe:
+            tcpSocket:
+              port: 8087
+            initialDelaySeconds: 20
+            failureThreshold: 3
+            timeoutSeconds: 1
+            periodSeconds: 10
+          startupProbe:
+            tcpSocket:
+              port: 8087
+            initialDelaySeconds: 10
+            failureThreshold: 30
+            timeoutSeconds: 1
+            periodSeconds: 5
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: bitwarden-cli
+  labels:
+    app.kubernetes.io/instance: bitwarden-cli
+    app.kubernetes.io/name: bitwarden-cli
+  annotations:
+spec:
+  type: ClusterIP
+  ports:
+    - port: 8087
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    app.kubernetes.io/name: bitwarden-cli
+    app.kubernetes.io/instance: bitwarden-cli
+---
+kind: NetworkPolicy
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: external-secret-2-bw-cli
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: bitwarden-cli
+      app.kubernetes.io/name: bitwarden-cli
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/instance: external-secrets
+              app.kubernetes.io/name: external-secrets
+
+---
+apiVersion: external-secrets.io/v1
+kind: ClusterSecretStore
+metadata:
+  name: vaultwarden-login
+spec:
+  provider:
+    webhook:
+      url: "http://bitwarden-cli:8087/object/item/{{ .remoteRef.key }}"
+      headers:
+        Content-Type: application/json
+      result:
+        jsonPath: "$.data.{{ .remoteRef.property }}"
+---
+apiVersion: external-secrets.io/v1
+kind: ClusterSecretStore
+metadata:
+  name: vaultwarden-fields
+spec:
+  provider:
+    webhook:
+      url: "http://bitwarden-cli:8087/object/item/{{ .remoteRef.key }}"
+      result:
+        jsonPath: "$.data.fields[?@.name==\"{{ .remoteRef.property }}\"].value"
+

k8s-ng/external-secrets/kustomization.yaml

@@ -0,0 +1,17 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - app.yaml
+  # Enable after the Vaultwarden bot account exists and the bitwarden-cli
+  # secret is created (see the header of bitwarden-store.yaml):
+  # - bitwarden-store.yaml
+
+helmCharts:
+  - name: external-secrets
+    repo: https://charts.external-secrets.io
+    version: 2.11.0
+    releaseName: external-secrets
+    namespace: external-secrets
+    valuesFile: values.yaml
+    includeCRDs: true

k8s-ng/external-secrets/values.yaml

@@ -0,0 +1 @@
+installCRDs: true

k8s-ng/postgresql/databases/vaultwarden.yaml

@@ -0,0 +1,81 @@
+# Database "vaultwarden": password, role, database and read access for the app.
+# To add another database copy this file and replace the name.
+
+# Generated once; the role and the application both read this Secret.
+apiVersion: external-secrets.io/v1
+kind: ExternalSecret
+metadata:
+  name: vaultwarden-db
+  namespace: psql
+spec:
+  refreshPolicy: CreatedOnce
+  target:
+    name: vaultwarden-db
+    template:
+      type: kubernetes.io/basic-auth
+      metadata:
+        labels:
+          cnpg.io/reload: "true"
+      data:
+        username: vaultwarden
+        password: "{{ .password }}"
+  dataFrom:
+    - sourceRef:
+        generatorRef:
+          apiVersion: generators.external-secrets.io/v1alpha1
+          kind: Password
+          name: db-password
+---
+apiVersion: postgresql.cnpg.io/v1
+kind: DatabaseRole
+metadata:
+  name: main-vaultwarden
+  namespace: psql
+spec:
+  cluster:
+    name: main
+  name: vaultwarden
+  login: true
+  passwordSecret:
+    name: vaultwarden-db
+---
+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: main-vaultwarden
+  namespace: psql
+spec:
+  cluster:
+    name: main
+  name: vaultwarden
+  owner: vaultwarden
+  databaseReclaimPolicy: retain
+---
+# Lets the vaultwarden namespace read only its own credentials Secret.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: vaultwarden-db-reader
+  namespace: psql
+rules:
+  - apiGroups: [""]
+    resources: [secrets]
+    resourceNames: [vaultwarden-db]
+    verbs: [get, list, watch]
+  - apiGroups: [authorization.k8s.io]
+    resources: [selfsubjectrulesreviews]
+    verbs: [create]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: vaultwarden-db-reader
+  namespace: psql
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: vaultwarden-db-reader
+subjects:
+  - kind: ServiceAccount
+    name: db-credentials-reader
+    namespace: vaultwarden

k8s-ng/postgresql/kustomization.yaml

@@ -4,3 +4,5 @@ kind: Kustomization
 resources:
   - app.yaml
   - cluster.yaml
+  - password-generator.yaml
+  - databases/vaultwarden.yaml

k8s-ng/postgresql/password-generator.yaml

@@ -0,0 +1,12 @@
+# Random passwords for database roles. Referenced by the ExternalSecrets in databases/.
+apiVersion: generators.external-secrets.io/v1alpha1
+kind: Password
+metadata:
+  name: db-password
+  namespace: psql
+spec:
+  length: 40
+  digits: 10
+  symbols: 0 # the password ends up inside a connection URL
+  noUpper: false
+  allowRepeat: true

k8s-ng/vaultwarden/app.yaml

@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: vaultwarden
+  namespace: argocd
+spec:
+  project: apps
+  destination:
+    namespace: vaultwarden
+    server: https://kubernetes.default.svc
+  source:
+    repoURL: https://gt.hexor.cy/ab/homelab.git
+    targetRevision: main
+    path: k8s-ng/vaultwarden
+  syncPolicy:
+    automated:
+      selfHeal: true
+      prune: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true
+      - SkipDryRunOnMissingResource=true # the external-secrets Application installs the CRDs

k8s-ng/vaultwarden/deployment.yaml

@@ -0,0 +1,64 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: vaultwarden
+  labels:
+    app: vaultwarden
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate # the RWO local volume cannot be mounted by two pods
+  selector:
+    matchLabels:
+      app: vaultwarden
+  template:
+    metadata:
+      labels:
+        app: vaultwarden
+    spec:
+      containers:
+        - name: vaultwarden
+          image: vaultwarden/server:1.37.3
+          resources:
+            requests:
+              memory: 128Mi
+              cpu: 100m
+            limits:
+              memory: 512Mi
+          env:
+            - name: DOMAIN
+              value: https://vw.hexor.cy
+            - name: ORG_GROUPS_ENABLED
+              value: "true"
+            - name: DATABASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: vaultwarden-db-url
+                  key: DATABASE_URL
+            - name: ADMIN_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: admin-token
+                  key: ADMIN_TOKEN
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          readinessProbe:
+            httpGet:
+              path: /alive
+              port: http
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /alive
+              port: http
+            initialDelaySeconds: 30
+            periodSeconds: 30
+          volumeMounts:
+            - name: data
+              mountPath: /data
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: vaultwarden-data

k8s-ng/vaultwarden/ingress.yaml

@@ -0,0 +1,23 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: vaultwarden
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+spec:
+  rules:
+    - host: vw.hexor.cy
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: vaultwarden
+                port:
+                  number: 80
+  tls:
+    - secretName: vaultwarden-tls
+      hosts:
+        - vw.hexor.cy

k8s-ng/vaultwarden/kustomization.yaml

@@ -0,0 +1,10 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - app.yaml
+  - secrets.yaml
+  - pvc.yaml
+  - deployment.yaml
+  - service.yaml
+  - ingress.yaml

k8s-ng/vaultwarden/pvc.yaml

@@ -0,0 +1,12 @@
+# Attachments, sends, icon cache and RSA keys live here; the database is in PostgreSQL.
+# A local-path volume is bound to one node: the pod stays on the node it first ran on.
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: vaultwarden-data
+spec:
+  accessModes: [ReadWriteOnce]
+  storageClassName: local-path
+  resources:
+    requests:
+      storage: 2Gi

k8s-ng/vaultwarden/secrets.yaml

@@ -0,0 +1,78 @@
+# Read-only access to the vaultwarden-db Secret in the psql namespace
+# (see postgresql/databases/vaultwarden.yaml for the other half).
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: db-credentials-reader
+---
+apiVersion: external-secrets.io/v1
+kind: SecretStore
+metadata:
+  name: psql-credentials
+spec:
+  provider:
+    kubernetes:
+      remoteNamespace: psql
+      server:
+        caProvider:
+          type: ConfigMap
+          name: kube-root-ca.crt
+          key: ca.crt
+      auth:
+        serviceAccount:
+          name: db-credentials-reader
+---
+apiVersion: external-secrets.io/v1
+kind: ExternalSecret
+metadata:
+  name: vaultwarden-db-url
+spec:
+  refreshInterval: 1h
+  secretStoreRef:
+    kind: SecretStore
+    name: psql-credentials
+  target:
+    name: vaultwarden-db-url
+    template:
+      data:
+        DATABASE_URL: "postgresql://{{ .username }}:{{ .password }}@main-rw.psql.svc:5432/vaultwarden"
+  data:
+    - secretKey: username
+      remoteRef:
+        key: vaultwarden-db
+        property: username
+    - secretKey: password
+      remoteRef:
+        key: vaultwarden-db
+        property: password
+---
+# Admin panel token (/admin). Generated once; read it with:
+#   kubectl -n vaultwarden get secret admin-token -o jsonpath='{.data.ADMIN_TOKEN}' | base64 -d
+apiVersion: generators.external-secrets.io/v1alpha1
+kind: Password
+metadata:
+  name: admin-token
+spec:
+  length: 48
+  digits: 10
+  symbols: 0
+  noUpper: false
+  allowRepeat: true
+---
+apiVersion: external-secrets.io/v1
+kind: ExternalSecret
+metadata:
+  name: admin-token
+spec:
+  refreshPolicy: CreatedOnce
+  target:
+    name: admin-token
+    template:
+      data:
+        ADMIN_TOKEN: "{{ .password }}"
+  dataFrom:
+    - sourceRef:
+        generatorRef:
+          apiVersion: generators.external-secrets.io/v1alpha1
+          kind: Password
+          name: admin-token

k8s-ng/vaultwarden/service.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: vaultwarden
+spec:
+  selector:
+    app: vaultwarden
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: http