chart: add bootstrap job (v0.2.0)

Post-install/post-upgrade Job that calls /api/bootstrap on first deploy
and stores the admin API key in a Secret (<release>-admin-key by default).
Exits cleanly on subsequent upgrades when bootstrap is already complete.
Adds ServiceAccount, Role (secrets:create), and RoleBinding as hook resources.

charts/terdut-server/Chart.yaml

@@ -2,5 +2,5 @@ apiVersion: v2
 name: terdut-server
 description: A Helm chart for Terminal Duty — on-call alert management server
 type: application
-version: 0.1.0
+version: 0.2.0
 appVersion: "latest"

charts/terdut-server/templates/_helpers.tpl

@@ -32,3 +32,7 @@ app.kubernetes.io/managed-by: {{ .Release.Service }}
 app.kubernetes.io/name: {{ include "terdut-server.name" . }}
 app.kubernetes.io/instance: {{ .Release.Name }}
 {{- end }}
+
+{{- define "terdut-server.bootstrapSecretName" -}}
+{{- .Values.bootstrap.secretName | default (printf "%s-admin-key" (include "terdut-server.fullname" .)) }}
+{{- end }}

charts/terdut-server/templates/bootstrap-job.yaml

@@ -0,0 +1,91 @@
+{{- if .Values.bootstrap.enabled }}
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ include "terdut-server.fullname" . }}-bootstrap
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "terdut-server.labels" . | nindent 4 }}
+  annotations:
+    helm.sh/hook: post-install,post-upgrade
+    helm.sh/hook-weight: "0"
+    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
+spec:
+  backoffLimit: 3
+  template:
+    metadata:
+      labels:
+        {{- include "terdut-server.selectorLabels" . | nindent 8 }}
+        app.kubernetes.io/component: bootstrap
+    spec:
+      restartPolicy: OnFailure
+      serviceAccountName: {{ include "terdut-server.fullname" . }}-bootstrap
+      containers:
+        - name: bootstrap
+          image: alpine:3
+          command:
+            - /bin/sh
+            - -c
+            - |
+              apk add --no-cache curl > /dev/null 2>&1
+
+              SERVICE_URL="http://{{ include "terdut-server.fullname" . }}:{{ .Values.service.port }}"
+              SECRET_NAME="{{ include "terdut-server.bootstrapSecretName" . }}"
+              K8S_API="https://kubernetes.default.svc"
+              SA_TOKEN="$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)"
+              CA_CERT="/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
+              NAMESPACE="$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace)"
+
+              echo "Waiting for terdut-server to be ready..."
+              RETRIES=60
+              while [ "$RETRIES" -gt 0 ]; do
+                curl -sf "$SERVICE_URL/healthz" > /dev/null 2>&1 && break
+                RETRIES=$((RETRIES - 1))
+                sleep 2
+              done
+              if [ "$RETRIES" -eq 0 ]; then
+                echo "Timed out waiting for server to be ready."
+                exit 1
+              fi
+              echo "Server is ready."
+
+              RESPONSE=$(curl -s -w "\n%{http_code}" -X POST "$SERVICE_URL/api/bootstrap" \
+                -H "Content-Type: application/json" \
+                -d '{"username":"{{ .Values.bootstrap.username }}","email":"{{ .Values.bootstrap.email }}"}')
+
+              HTTP_CODE=$(echo "$RESPONSE" | tail -1)
+              BODY=$(echo "$RESPONSE" | head -1)
+
+              if [ "$HTTP_CODE" = "403" ]; then
+                echo "Server already bootstrapped, nothing to do."
+                exit 0
+              fi
+
+              if [ "$HTTP_CODE" != "201" ]; then
+                echo "Bootstrap failed (HTTP $HTTP_CODE): $BODY"
+                exit 1
+              fi
+
+              API_KEY=$(echo "$BODY" | grep -o '"key":"[^"]*"' | cut -d'"' -f4)
+              if [ -z "$API_KEY" ]; then
+                echo "Failed to extract API key from response."
+                exit 1
+              fi
+
+              echo "Bootstrap succeeded. Storing API key in secret '$SECRET_NAME'."
+
+              HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" \
+                -X POST "$K8S_API/api/v1/namespaces/$NAMESPACE/secrets" \
+                --cacert "$CA_CERT" \
+                -H "Authorization: Bearer $SA_TOKEN" \
+                -H "Content-Type: application/json" \
+                -d "$(printf '{"apiVersion":"v1","kind":"Secret","metadata":{"name":"%s"},"stringData":{"api-key":"%s"}}' "$SECRET_NAME" "$API_KEY")")
+
+              if [ "$HTTP_CODE" != "201" ]; then
+                echo "Failed to create secret (HTTP $HTTP_CODE)."
+                exit 1
+              fi
+
+              echo "Secret '$SECRET_NAME' created successfully."
+{{- end }}

charts/terdut-server/templates/bootstrap-rbac.yaml

@@ -0,0 +1,50 @@
+{{- if .Values.bootstrap.enabled }}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "terdut-server.fullname" . }}-bootstrap
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "terdut-server.labels" . | nindent 4 }}
+  annotations:
+    helm.sh/hook: post-install,post-upgrade
+    helm.sh/hook-weight: "-1"
+    helm.sh/hook-delete-policy: before-hook-creation
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ include "terdut-server.fullname" . }}-bootstrap
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "terdut-server.labels" . | nindent 4 }}
+  annotations:
+    helm.sh/hook: post-install,post-upgrade
+    helm.sh/hook-weight: "-1"
+    helm.sh/hook-delete-policy: before-hook-creation
+rules:
+  - apiGroups: [""]
+    resources: ["secrets"]
+    verbs: ["create"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ include "terdut-server.fullname" . }}-bootstrap
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "terdut-server.labels" . | nindent 4 }}
+  annotations:
+    helm.sh/hook: post-install,post-upgrade
+    helm.sh/hook-weight: "-1"
+    helm.sh/hook-delete-policy: before-hook-creation
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ include "terdut-server.fullname" . }}-bootstrap
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "terdut-server.fullname" . }}-bootstrap
+    namespace: {{ .Release.Namespace }}
+{{- end }}

charts/terdut-server/values.yaml

@@ -14,3 +14,10 @@ storage:
 service:
   type: ClusterIP
   port: 8080
+
+bootstrap:
+  enabled: true
+  username: admin
+  email: admin@example.com
+  # secretName overrides the default of <fullname>-admin-key
+  secretName: ""