--- layout: default title: Secrets parent: Configuration nav_order: 8 --- # Secrets Configuration of Authelia requires some secrets and passwords. Even if they can be set in the configuration file, the recommended way to set secrets is to use environment variables as described below. ## Environment variables A secret can be configured using an environment variable with the prefix AUTHELIA_ followed by the path of the option capitalized and with dots replaced by underscores followed by the suffix _FILE. The contents of the environment variable must be a path to a file containing the secret data. This file must be readable by the user the Authelia daemon is running as. For instance the LDAP password can be defined in the configuration at the path **authentication_backend.ldap.password**, so this password could alternatively be set using the environment variable called **AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE**. Here is the list of the environment variables which are considered secrets and can be defined. Any other option defined using an environment variable will not be replaced. |Configuration Key |Environment Variable | |:----------------------------------:|:------------------------------------------------:| |jwt_secret |AUTHELIA_JWT_SECRET_FILE | |duo_api.secret_key |AUTHELIA_DUO_API_SECRET_KEY_FILE | |session.secret |AUTHELIA_SESSION_SECRET_FILE | |session.redis.password |AUTHELIA_SESSION_REDIS_PASSWORD_FILE | |storage.mysql.password |AUTHELIA_STORAGE_MYSQL_PASSWORD_FILE | |storage.postgres.password |AUTHELIA_STORAGE_POSTGRES_PASSWORD_FILE | |notifier.smtp.password |AUTHELIA_NOTIFIER_SMTP_PASSWORD_FILE | |authentication_backend.ldap.password|AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE| ## Secrets exposed in an environment variable Prior to implementing file secrets you were able to define the values of secrets in the environment variables themselves in plain text instead of referencing a file. This is still supported but discouraged. If you still want to do this just remove _FILE from the environment variable name and define the value in insecure plain text. See [this article](https://diogomonica.com/2017/03/27/why-you-shouldnt-use-env-variables-for-secret-data/) for reasons why this is considered insecure and is discouraged. **DEPRECATION NOTICE:** This backwards compatibility feature will be **removed** in 4.18.0+. ## Secrets in configuration file If for some reason you prefer keeping the secrets in the configuration file, be sure to apply the right permissions to the file in order to prevent secret leaks if an another application gets compromised on your server. The UNIX permissions should probably be something like 600. ## Kubernetes Secrets can be mounted as files using the following sample manifests. ### Kustomization - **Filename:** ./kustomization.yaml - **Command:** kubectl apply -k - **Notes:** this kustomization expects the Authelia configuration.yml in the same directory. You will need to edit the kustomization.yaml with your desired secrets after the equal signs. If you change the value before the equal sign you'll have to adjust the volumes section of the daemonset template (or deployment template if you're using it). ```yaml #filename: ./kustomization.yaml generatorOptions: disableNameSuffixHash: true labels: type: generated app: authelia configMapGenerator: - name: authelia files: - configuration.yml secretGenerator: - name: authelia literals: - jwt_secret=myverysecuresecret - session_secret=mysessionsecret - redis_password=myredispassword - sql_password=mysqlpassword - ldap_password=myldappassword - duo_secret=myduosecretkey - smtp_password=mysmtppassword ``` ### DaemonSet - **Filename:** ./daemonset.yaml - **Command:** kubectl apply -f ./daemonset.yaml - **Notes:** assumes Kubernetes API 1.16 or greater ```yaml #filename: daemonset.yaml #command: kubectl apply -f daemonset.yaml #notes: assumes kubernetes api 1.16+ apiVersion: apps/v1 kind: DaemonSet metadata: name: authelia labels: app: authelia spec: selector: matchLabels: app: authelia updateStrategy: type: RollingUpdate template: metadata: labels: app: authelia spec: containers: - name: authelia image: authelia/authelia:latest imagePullPolicy: IfNotPresent env: - name: AUTHELIA_JWT_SECRET_FILE value: /usr/app/secrets/jwt - name: AUTHELIA_DUO_API_SECRET_KEY_FILE value: /usr/app/secrets/duo - name: AUTHELIA_SESSION_SECRET_FILE value: /usr/app/secrets/session - name: AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE value: /usr/app/secrets/ldap_password - name: AUTHELIA_NOTIFIER_SMTP_PASSWORD_FILE value: /usr/app/secrets/smtp_password - name: AUTHELIA_STORAGE_POSTGRES_PASSWORD_FILE value: /usr/app/secrets/sql_password ports: - name: http containerPort: 80 startupProbe: httpGet: path: /api/configuration port: http initialDelaySeconds: 10 timeoutSeconds: 5 periodSeconds: 5 failureThreshold: 4 livenessProbe: httpGet: path: /api/configuration port: http initialDelaySeconds: 60 timeoutSeconds: 5 periodSeconds: 30 failureThreshold: 2 readinessProbe: httpGet: path: /api/configuration port: http initialDelaySeconds: 10 timeoutSeconds: 5 periodSeconds: 5 failureThreshold: 5 volumeMounts: - mountPath: /etc/authelia name: config-volume - mountPath: /usr/app/secrets name: secrets readOnly: true - mountPath: /etc/localtime name: localtime readOnly: true volumes: - name: config-volume configMap: name: authelia items: - key: configuration.yml path: configuration.yml - name: secrets secret: secretName: authelia items: - key: jwt_secret path: jwt - key: duo_secret path: duo - key: session_secret path: session - key: redis_password path: redis_password - key: sql_password path: sql_password - key: ldap_password path: ldap_password - key: smtp_password path: smtp_password - name: localtime hostPath: path: /etc/localtime ```