k8scd/vault/configure-oidc.yaml

apiVersion: external-secrets.io/v1beta1
kind: ExternalSecret
metadata:
  name: vault-oidc-config
spec:
  secretStoreRef:
    name: vault-backend
    kind: ClusterSecretStore
  refreshInterval: 15m
  target:
    name: vault-oidc-config
    creationPolicy: Owner
  data:
    - secretKey: client_secret
      remoteRef:
        key: kv/vault-oidc
        property: client_secret
    - secretKey: admin_token
      remoteRef:
        key: kv/vault-oidc
        property: admin_token
---
apiVersion: batch/v1
kind: Job
metadata:
  name: vault-configure-oidc
  annotations:
    argocd.argoproj.io/hook: PostSync
    argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
spec:
  backoffLimit: 3
  template:
    spec:
      containers:
        - name: configure
          image: hashicorp/vault:1.15
          env:
            - name: VAULT_ADDR
              value: "http://vault-active.vault.svc:8200"
            - name: VAULT_TOKEN
              valueFrom:
                secretKeyRef:
                  name: vault-oidc-config
                  key: admin_token
            - name: OIDC_CLIENT_SECRET
              valueFrom:
                secretKeyRef:
                  name: vault-oidc-config
                  key: client_secret
          command: ["/bin/sh", "-c"]
          args:
            - |
              vault auth enable oidc 2>/dev/null || true
              vault auth tune -listing_visibility=unauth oidc/
              vault policy write admin - <<'POLICY'
              path "*" {
                capabilities = ["create", "read", "update", "delete", "list", "sudo"]
              }
              POLICY
              vault write auth/oidc/config \
                oidc_discovery_url="https://authentik.rubenhensen.nl/application/o/vault/" \
                oidc_client_id="vault" \
                oidc_client_secret="$OIDC_CLIENT_SECRET" \
                default_role="default"
              vault write auth/oidc/role/default \
                allowed_redirect_uris="https://vault.rubenhensen.nl/ui/vault/auth/oidc/oidc/callback" \
                allowed_redirect_uris="http://localhost:8250/oidc/callback" \
                user_claim="preferred_username" \
                oidc_scopes="openid,profile,email" \
                groups_claim="groups" \
                policies="default,admin"
      restartPolicy: OnFailure