immich/docs/docs/install/environment-variables.md

sidebar_position
90

Environment Variables

Docker Compose

Variable	Description	Default	Services
IMMICH_VERSION	Image tags	release	server, microservices, machine learning, web, proxy, typesense
UPLOAD_LOCATION	Host Path for uploads		server, microservices

:::tip

These environment variables are used by the docker-compose.yml file and do NOT affect the containers directly.

:::

General

Variable	Description	Default	Services
TZ	Timezone		microservices
NODE_ENV	Environment (production, development)	production	server, microservices, machine learning, web
LOG_LEVEL	Log Level (verbose, debug, log, warn, error)	log	server, microservices
IMMICH_MEDIA_LOCATION	Media Location	./upload	server, microservices
PUBLIC_LOGIN_PAGE_MESSAGE	Public Login Page Message		web
IMMICH_CONFIG_FILE	Path to config file		server

:::tip

TZ is only used by the exiftool as a fallback in case the timezone cannot be determined from the image metadata.

exiftool is only present in the microservices container.

:::

Geocoding

Variable	Description	Default	Services
DISABLE_REVERSE_GEOCODING	Disable Reverse Geocoding Precision	false	microservices
REVERSE_GEOCODING_PRECISION	Reverse Geocoding Precision	3	microservices
REVERSE_GEOCODING_DUMP_DIRECTORY	Reverse Geocoding Dump Directory	./.reverse-geocoding-dump/	microservices

Ports

Variable	Description	Default	Services
PORT	Web Port	3000	web
SERVER_PORT	Server Port	3001	server
MICROSERVICES_PORT	Microservices Port	3002	microservices
MACHINE_LEARNING_HOST	Machine Learning Host	0.0.0.0	machine learning
MACHINE_LEARNING_PORT	Machine Learning Port	3003	machine learning

URLs

Variable	Description	Default	Services
IMMICH_WEB_URL	Immich Web URL	http://immich-web:3000	proxy
IMMICH_SERVER_URL	Immich Server URL	http://immich-server:3001	web, proxy
PUBLIC_IMMICH_SERVER_URL	Public Immich URL	http://immich-server:3001	web
IMMICH_API_URL_EXTERNAL	Immich API URL External	/api	web

:::info

The above paths are modifying the internal paths of the containers.

:::

Database

Variable	Description	Default	Services
DB_URL	Database URL		server, microservices
DB_HOSTNAME	Database Host	localhost	server, microservices
DB_PORT	Database Port	5432	server, microservices
DB_USERNAME	Database User	postgres	server, microservices
DB_PASSWORD	Database Password	postgres	server, microservices
DB_DATABASE	Database Name	immich	server, microservices

:::info

When DB_URL is defined, the other database (DB_*) variables are ignored.

:::

Redis

Variable	Description	Default	Services
REDIS_URL	Redis URL		server, microservices
REDIS_HOSTNAME	Redis Host	immich_redis	server, microservices
REDIS_PORT	Redis Port	6379	server, microservices
REDIS_DBINDEX	Redis DB Index	0	server, microservices
REDIS_USERNAME	Redis Username		server, microservices
REDIS_PASSWORD	Redis Password		server, microservices
REDIS_SOCKET	Redis Socket		server, microservices

:::info

REDIS_URL must start with ioredis:// and then include a base64 encoded JSON string for the configuration. More info can be found in the upstream ioredis documentation.

• When REDIS_URL is defined, the other redis (REDIS_*) variables are ignored.
• When REDIS_SOCKET is defined, the other redis (REDIS_*) variables are ignored.

:::

Redis (Sentinel) URL example JSON before encoding:

{
  "sentinels": [
    {
      "host": "redis-sentinel-node-0",
      "port": 26379
    },
    {
      "host": "redis-sentinel-node-1",
      "port": 26379
    },
    {
      "host": "redis-sentinel-node-2",
      "port": 26379
    }
  ],
  "name": "redis-sentinel"
}

Typesense

Variable	Description	Default	Services
TYPESENSE_ENABLED	Enable Typesense		server, microservices
TYPESENSE_URL	Typesense URL		server, microservices
TYPESENSE_HOST	Typesense Host	typesense	server, microservices
TYPESENSE_PORT	Typesense Port	8108	server, microservices
TYPESENSE_PROTOCOL	Typesense Protocol	http	server, microservices
TYPESENSE_API_KEY	Typesense API Key		server, microservices, typesense
TYPESENSE_DATA_DIR	Typesense Data Directory	/data	typesense

:::info

TYPESENSE_URL must start with ha:// and then include a base64 encoded JSON string for the configuration.

TYPESENSE_ENABLED: Anything other than false, behaves as true. Even undefined is treated as true.

• When TYPESENSE_URL is defined, the other typesense (TYPESENSE_*) variables are ignored.

:::

Typesense URL example JSON before encoding:

[
  {
    "host": "typesense-1.example.net",
    "port": "443",
    "protocol": "https"
  },
  {
    "host": "typesense-2.example.net",
    "port": "443",
    "protocol": "https"
  },
  {
    "host": "typesense-3.example.net",
    "port": "443",
    "protocol": "https"
  }
]

Machine Learning

Variable	Description	Default	Services
MACHINE_LEARNING_MODEL_TTL	Model TTL	300	machine learning
MACHINE_LEARNING_CACHE_FOLDER	ML Cache Location	/cache	machine learning
MACHINE_LEARNING_REQUEST_THREADS*1	Request thread pool size	number of CPU cores	machine learning
MACHINE_LEARNING_MODEL_INTER_OP_THREADS	Number of parallel model operations	1	machine learning
MACHINE_LEARNING_MODEL_INTRA_OP_THREADS	Number of threads for each model operation	2	machine learning

*1: It is recommended to begin with this parameter when changing the concurrency levels of the machine learning service and then tune the other ones.

:::info

Other machine learning parameters can be tuned from the admin UI.

:::

Docker Secrets

The following variables support the use of Docker secrets for additional security.

To use any of these, replace the regular environment variable with the equivalent _FILE environment variable. The value of the _FILE variable should be set to the path of a file containing the variable value.

Regular Variable	Equivalent Docker Secrets '_FILE' Variable
DB_HOSTNAME	DB_HOSTNAME_FILE*1
DB_DATABASE_NAME	DB_DATABASE_NAME_FILE*1
DB_USERNAME	DB_USERNAME_FILE*1
DB_PASSWORD	DB_PASSWORD_FILE*1
REDIS_PASSWORD	REDIS_PASSWORD_FILE*2

*1: See the official documentation for details on how to use Docker Secrets in the Postgres image.

*2: See this comment for an example of how to use use a Docker secret for the password in the Redis container.