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arlas-persistence-configuration.md

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Configuring ARLAS Persistence running environment

ARLAS Persistence configuration file

ARLAS Persistence is configured with a yaml configuration file.

External module configurations are available online:

Module Link
Swagger https://github.com/federecio/dropwizard-swagger
Dropwizard http://www.dropwizard.io/1.0.4/docs/manual/configuration.html

Configure ARLAS Persistence as a docker container

With environment variables

ARLAS Persistence can run as a docker container. A rich set of properties of the configuration file can be overriden by passing environment variables to the container:

docker run -ti -d \
   --name arlas-persistence \
   -e "ARLAS_PERSISTENCE_HIBERNATE_DRIVER=org.postgresql.Driver" \
   gisaia/arlas-persistence:latest

All supported environment variables are listed below.

With file/URL based configuration

Instead of overriding some properties of the configuration file, it is possible to start the ARLAS Persistence container with a given configuration file.

File

The ARLAS Persistence container can start with a mounted configuration file thanks to docker volume mapping. For instance, if the current directory of the host contains a configuration.yaml file, the container can be started as follow:

docker run -ti -d \
   --name arlas-persistence \
   -v `pwd`/configuration.yaml:/opt/app/configuration.yaml \
   gisaia/arlas-persistence:latest

URL

The ARLAS Persistence container can start with a configuration file that is downloaded before starting up. The configuration file must be available through an URL accessible from within the container. The URL is specified with an environment variable:

Environment variable Description
ARLAS_PERSISTENCE_CONFIGURATION_URL URL of the ARLAS Persistence configuration file to be downloaded by the container before starting

For instance, if the current directory of the host contains a configuration.yaml file, the container can be started as follow:

docker run -ti -d \
   --name arlas-persistence \
   -e ARLAS_PERSISTENCE_CONFIGURATION_URL="http://somemachine/conf.yaml" \
   gisaia/arlas-persistence:latest

ARLAS Persistence configuration properties

Server

Environment variable ARLAS Server configuration variable Default Description
ARLAS_PERSISTENCE_ACCESS_LOG_FILE server.requestLog.appenders.currentLogFilename arlas-persistence-access.log
ARLAS_PERSISTENCE_LOG_FILE_ARCHIVE server.requestLog.appenders.archivedLogFilenamePattern arlas-persistence-access-%d.log.gz
ARLAS_PERSISTENCE_APP_PATH server.applicationContextPath / Base URL path
ARLAS_PERSISTENCE_PREFIX server.rootPath /arlas_persistence_server Base sub-path for general API, gets appended to server.applicationContextPath
ARLAS_PERSISTENCE_ADMIN_PATH server.adminContextPath /admin Base sub-path for admin API, gets appended to server.applicationContextPath
ARLAS_PERSISTENCE_PORT server.connector.port 9997
ARLAS_PERSISTENCE_MAX_THREADS server.maxThreads 1024
ARLAS_PERSISTENCE_MIN_THREADS server.minThreads 8
ARLAS_PERSISTENCE_MAX_QUEUED_REQUESTS server.maxQueuedRequests 1024

URL Masking

Environment variable ARLAS Server configuration variable Default Description
ARLAS_PERSISTENCE_BASE_URI arlas-base-uri None Base URI to ARLAS Persistence. If not set, the real base URI is exposed

Logging

Environment variable ARLAS Server configuration variable Default
ARLAS_PERSISTENCE_LOGGING_LEVEL logging.level INFO
ARLAS_PERSISTENCE_LOGGING_CONSOLE_LEVEL logging.appenders[type: console].threshold INFO
ARLAS_PERSISTENCE_LOGGING_FILE logging.appenders[type: file].currentLogFilename arlas-persistence.log
ARLAS_PERSISTENCE_LOGGING_FILE_LEVEL logging.appenders[type: file].threshold INFO
ARLAS_PERSISTENCE_LOGGING_FILE_ARCHIVE logging.appenders[type: file].archive true
ARLAS_PERSISTENCE_LOGGING_FILE_ARCHIVE_FILE_PATTERN logging.appenders[type: file].archivedLogFilenamePattern arlas-persistence-%d.log
ARLAS_PERSISTENCE_LOGGING_FILE_ARCHIVE_FILE_COUNT logging.appenders[type: file].archivedFileCount 5

CORS, HEADERS for API response

Environment variable ARLAS Server configuration variable Default Description
ARLAS_CORS_ENABLED arlas_cors.enabled false Whether to configure cors or not
ARLAS_CORS_ALLOWED_ORIGINS arlas_cors.allowed_origins "*" Comma-separated list of allowed origins
ARLAS_CORS_ALLOWED_HEADERS arlas_cors.allowed_headers "arlas-user,arlas-groups,arlas-organization,X-Requested-With,Content-Type,Accept,Origin,Authorization,X-Forwarded-User" Comma-separated list of allowed headers
ARLAS_CORS_ALLOWED_METHODS arlas_cors.allowed_methods "OPTIONS,GET,PUT,POST,DELETE,HEAD" Comma-separated list of allowed methods
ARLAS_CORS_ALLOWED_CREDENTIALS arlas_cors.allowed_credentials true Whether to allow credentials or not
ARLAS_CORS_EXPOSED_HEADERS arlas_cors.exposed_headers "Content-Type,Authorization,X-Requested-With,Content-Length,Accept,Origin,Location" Comma-separated list of exposed headers, readable on client side

AUTH

Environment variable ARLAS Server configuration variable Default Description
ARLAS_AUTH_POLICY_CLASS arlas_auth_policy_class io.arlas.commons.rest.auth.NoPolicyEnforcer Specify a PolicyEnforcer class to load in order to activate Authentication if needed

API

Environment variable ARLAS Server configuration variable Default Description
ARLAS_PERSISTENCE_ENGINE persistence_engine 'file' Determine in which mode we run the api : sql or firestore, possible values : hibernate or firestore or file
ARLAS_PERSISTENCE_FIRESTORE_COLLECTION firestore_collection 'user_pref' Name of the Firestore collection if relevant (required when engine is 'firestore')
ARLAS_PERSISTENCE_LOCAL_FOLDER local_folder '/tmp/persist/' Folder name where data is persisted (required when engine is 'file')
ARLAS_ORGANIZATION_HEADER arlas_organization_header 'arlas-organization' HTTP header name holding the user's organisation
ARLAS_ANONYMOUS_VALUE anonymous_value 'anonymous' Default value for identity headers when authentication is not enabled

Database Mandatory if persistence_engine is hibernate

Environment variable ARLAS Server configuration variable Default Description
ARLAS_PERSISTENCE_HIBERNATE_DRIVER database.driverClass org.postgresql.Driver Driver to use for SGBD
ARLAS_PERSISTENCE_HIBERNATE_USER database.user pg-user User of SGBD
ARLAS_PERSISTENCE_HIBERNATE_PASSWORD database.password iAMs00perSecrEET Password of SGBD
ARLAS_PERSISTENCE_HIBERNATE_URL database.password jdbc:postgresql://db:5432/arlas_persistence Hibernate url to database, you can decide the name of the db
ARLAS_PERSISTENCE_HIBERNATE_DIALECT database.properties.hibernate.dialect org.hibernate.dialect.PostgreSQLDialect Class for hibernate dialect

CACHE

Environment variable ARLAS Server configuration variable Default Description
ARLAS_PERSISTENCE_CACHE_FACTORY_CLASS arlas_cache_factory_class io.arlas.commons.cache.NoCacheFactory Factory class to get the cache manager
ARLAS_CACHE_TIMEOUT arlas-cache-timeout 60 TTL in seconds of items in the cache

GOOGLE FIRESTORE Mandatory if persistence_engine is firestore

Environment variable Description
GOOGLE_APPLICATION_CREDENTIALS Path to file with google credential key json for Gcloud firestore service

JAVA

Environment variable Description
ARLAS_XMX Java Maximum Heap Size