ext-secrets initial

09_ExternalSecrets/external-secrets-values.yaml

@@ -0,0 +1,51 @@
+# External Secrets Operator resource configuration
+# Based on Goldilocks recommendations (Burstable QoS)
+
+podSecurityContext:
+  runAsNonRoot: true
+  runAsUser: 1000
+  runAsGroup: 1000
+  fsGroup: 1000
+  seccompProfile:
+    type: RuntimeDefault
+
+# Main controller
+resources:
+  requests:
+    cpu: 15m
+    memory: 192Mi
+  limits:
+    cpu: 50m
+    memory: 256Mi
+
+certController:
+  podSecurityContext:
+    runAsNonRoot: true
+    runAsUser: 1000
+    runAsGroup: 1000
+    fsGroup: 1000
+    seccompProfile:
+      type: RuntimeDefault
+  resources:
+    requests:
+      cpu: 15m
+      memory: 192Mi
+    limits:
+      cpu: 50m
+      memory: 256Mi
+
+webhook:
+  podSecurityContext:
+    runAsNonRoot: true
+    runAsUser: 1000
+    runAsGroup: 1000
+    fsGroup: 1000
+    seccompProfile:
+      type: RuntimeDefault
+  resources:
+    requests:
+      cpu: 15m
+      memory: 128Mi
+    limits:
+      cpu: 50m
+      memory: 256Mi

09_ExternalSecrets/justfile

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+set fallback := true
+
+export EXTERNAL_SECRETS_NAMESPACE := env("EXTERNAL_SECRETS_NAMESPACE", "external-secrets")
+export EXTERNAL_SECRETS_CHART_VERSION := env("EXTERNAL_SECRETS_CHART_VERSION", "1.1.0")
+export EXTERNAL_SECRETS_REFRESH_INTERVAL := env("EXTERNAL_SECRETS_REFRESH_INTERVAL", "1800")
+export K8S_VAULT_NAMESPACE := env("K8S_VAULT_NAMESPACE", "vault")
+export VAULT_HOST := env("VAULT_HOST", "")
+export VAULT_ADDR := "https://" + VAULT_HOST
+
+[private]
+default:
+    @just --list --unsorted --list-submodules
+
+# Add Helm repository
+add-helm-repo:
+    helm repo add external-secrets https://charts.external-secrets.io
+    helm repo update
+
+# Remove Helm repository
+remove-helm-repo:
+    helm repo remove external-secrets
+
+# Install External Secrets
+install:
+    just add-helm-repo
+    helm upgrade --cleanup-on-fail \
+        --install external-secrets external-secrets/external-secrets \
+        --version ${EXTERNAL_SECRETS_CHART_VERSION} -n ${EXTERNAL_SECRETS_NAMESPACE} \
+        --create-namespace --wait \
+        -f external-secrets-values.yaml
+
+    kubectl label namespace ${EXTERNAL_SECRETS_NAMESPACE} \
+        pod-security.kubernetes.io/enforce=restricted --overwrite
+
+    just create-external-secrets-role
+    just create-vault-secret-store
+
+# Uninstall External Secrets
+uninstall:
+    just delete-vault-secret-store
+    helm uninstall external-secrets -n ${EXTERNAL_SECRETS_NAMESPACE} --wait
+    kubectl delete namespace ${EXTERNAL_SECRETS_NAMESPACE} --ignore-not-found
+
+# Create Vault Secret Store for External Secrets
+create-vault-secret-store:
+    gomplate -f ./vault-secret-store.gomplate.yaml | kubectl apply -f -
+
+# Delete Vault Secret Store for External Secrets
+delete-vault-secret-store:
+    gomplate -f ./vault-secret-store.gomplate.yaml | kubectl delete --ignore-not-found -f -
+
+# Create Vault role for External Secrets
+create-external-secrets-role root_token='':
+    #!/bin/bash
+    set -euo pipefail
+    export VAULT_TOKEN="{{ root_token }}"
+    while [ -z "${VAULT_TOKEN}" ]; do
+        VAULT_TOKEN=$(gum input --prompt="Vault root token: " --password --width=100)
+    done
+    vault write auth/kubernetes/role/external-secrets \
+        bound_service_account_names=external-secrets \
+        bound_service_account_namespaces=${EXTERNAL_SECRETS_NAMESPACE} \
+        audience=vault \
+        policies=admin \
+        ttl=1h

09_ExternalSecrets/vault-secret-store.gomplate.yaml

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+apiVersion: external-secrets.io/v1
+kind: ClusterSecretStore
+metadata:
+  name: vault-secret-store
+spec:
+  provider:
+    vault:
+      server: http://vault.{{ .Env.K8S_VAULT_NAMESPACE }}:8200
+      path: secret
+      version: v2
+      auth:
+        kubernetes:
+          role: external-secrets
+          mountPath: kubernetes
+          serviceAccountRef:
+            name: external-secrets
+            namespace: {{ .Env.EXTERNAL_SECRETS_NAMESPACE }}
+            # Audience must match the audience configured in Vault Kubernetes auth role
+            # Required for Vault 1.21+ compatibility
+            audiences:
+              - vault
+  refreshInterval: {{ .Env.EXTERNAL_SECRETS_REFRESH_INTERVAL }}