--- layout: default title: Secrets parent: Configuration nav_order: 10 --- # 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 | |session.redis.high_availability.sentinel_password|AUTHELIA_REDIS_HIGH_AVAILABILITY_SENTINEL_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 | |identity_providers.oidc.issuer_private_key |AUTHELIA_IDENTITY_PROVIDERS_OIDC_ISSUER_PRIVATE_KEY_FILE| |identity_providers.oidc.hmac_secret |AUTHELIA_IDENTITY_PROVIDERS_OIDC_HMAC_SECRET_FILE | ## 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. ## Secrets exposed in an environment variable **DEPRECATION NOTICE:** This backwards compatibility feature **has been removed** in 4.18.0+. 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 no longer available as an option**, please see the table above for the file based replacements. See [this article](https://diogomonica.com/2017/03/27/why-you-shouldnt-use-env-variables-for-secret-data/) for reasons why this was removed. ## Docker Secrets can be provided in a `docker-compose.yml` either with Docker secrets or bind mounted secret files, examples of these are provided below. ### Compose with Docker secrets This example assumes secrets are stored in `/path/to/authelia/secrets/{secretname}` on the host and are exposed with Docker secrets in a `docker-compose.yml` file: ```yaml version: '3.8' networks: net: driver: bridge secrets: jwt: file: /path/to/authelia/secrets/jwt duo: file: /path/to/authelia/secrets/duo session: file: /path/to/authelia/secrets/session redis: file: /path/to/authelia/secrets/redis mysql: file: /path/to/authelia/secrets/mysql smtp: file: /path/to/authelia/secrets/smtp ldap: file: /path/to/authelia/secrets/ldap services: authelia: image: authelia/authelia container_name: authelia secrets: - jwt - duo - session - redis - mysql - smtp - ldap volumes: - /path/to/authelia:/config networks: - net expose: - 9091 restart: unless-stopped environment: - AUTHELIA_JWT_SECRET_FILE=/run/secrets/jwt - AUTHELIA_DUO_API_SECRET_KEY_FILE=/run/secrets/duo - AUTHELIA_SESSION_SECRET_FILE=/run/secrets/session - AUTHELIA_SESSION_REDIS_PASSWORD_FILE=/run/secrets/redis - AUTHELIA_STORAGE_MYSQL_PASSWORD_FILE=/run/secrets/mysql - AUTHELIA_NOTIFIER_SMTP_PASSWORD_FILE=/run/secrets/smtp - AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE=/run/secrets/ldap - TZ=Australia/Melbourne ``` ### Compose with bind mounted secret files This example assumes secrets are stored in `/path/to/authelia/secrets/{secretname}` on the host and are exposed with bind mounted secret files in a `docker-compose.yml` file at `/config/secrets/`: ```yaml version: '3.8' networks: net: driver: bridge services: authelia: image: authelia/authelia container_name: authelia volumes: - /path/to/authelia:/config networks: - net expose: - 9091 restart: unless-stopped environment: - AUTHELIA_JWT_SECRET_FILE=/config/secrets/jwt - AUTHELIA_DUO_API_SECRET_KEY_FILE=/config/secrets/duo - AUTHELIA_SESSION_SECRET_FILE=/config/secrets/session - AUTHELIA_SESSION_REDIS_PASSWORD_FILE=/config/secrets/redis - AUTHELIA_STORAGE_MYSQL_PASSWORD_FILE=/config/secrets/mysql - AUTHELIA_NOTIFIER_SMTP_PASSWORD_FILE=/config/secrets/smtp - AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE=/config/secrets/ldap - TZ=Australia/Melbourne ``` ## Kubernetes Secrets can be mounted as files using the following sample manifests. To create a secret, the following manifest can be used ```yaml --- kind: Secret apiVersion: v1 metadata: name: a-nice-name namespace: your-authelia-namespace data: duo_key: >- UXE1WmM4S0pldnl6eHRwQ3psTGpDbFplOXFueUVyWEZhYjE0Z01IRHN0RT0K jwt_secret: >- anotherBase64EncodedSecret ... ``` where `UXE1WmM4S0pldnl6eHRwQ3psTGpDbFplOXFueUVyWEZhYjE0Z01IRHN0RT0K` is Base64 encoded for `Qq5Zc8KJevyzxtpCzlLjClZe9qnyErXFab14gMHDstE`, the actual content of the secret. You can generate these contents with ```sh LENGTH=64 tr -cd '[:alnum:]' < /dev/urandom \ | fold -w "${LENGTH}" \ | head -n 1 \ | tr -d '\n' \ | tee actualSecretContent.txt \ | base64 --wrap 0 \ ; echo ``` which writes the secret's content to the `actualSecretContent.txt` file and print the Base64 encoded version on `stdout`. `${LENGTH}` is the length in characters of the secret content generated by this pipe. If you don't want the contents to be written to `actualSecretContent.txt`, just delete the line with the `tee` command. ### 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 namespace: 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: /app/secrets/jwt - name: AUTHELIA_DUO_API_SECRET_KEY_FILE value: /app/secrets/duo - name: AUTHELIA_SESSION_SECRET_FILE value: /app/secrets/session - name: AUTHELIA_AUTHENTICATION_BACKEND_LDAP_PASSWORD_FILE value: /app/secrets/ldap_password - name: AUTHELIA_NOTIFIER_SMTP_PASSWORD_FILE value: /app/secrets/smtp_password - name: AUTHELIA_STORAGE_MYSQL_PASSWORD_FILE value: /app/secrets/sql_password - name: AUTHELIA_SESSION_REDIS_PASSWORD_FILE value: /app/secrets/redis_password - name: TZ value: America/Toronto ports: - name: authelia-port containerPort: 9091 startupProbe: httpGet: path: /api/state port: authelia-port initialDelaySeconds: 15 timeoutSeconds: 5 periodSeconds: 5 failureThreshold: 4 livenessProbe: httpGet: path: /api/state port: authelia-port initialDelaySeconds: 60 timeoutSeconds: 5 periodSeconds: 30 failureThreshold: 2 readinessProbe: httpGet: path: /api/state port: authelia-port initialDelaySeconds: 15 timeoutSeconds: 5 periodSeconds: 5 failureThreshold: 5 volumeMounts: - mountPath: /config name: config-volume - mountPath: /app/secrets name: secrets 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 ```