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Cloud directory — configuration

`cmd/directory-service` flags

Flag	Default	Description
`-addr`	`:8080`	HTTP listen address
`-db-host`	`localhost`	PostgreSQL host
`-db-port`	`5432`	PostgreSQL port
`-db-user`	`moonhub`	PostgreSQL user
`-db-pass`	(empty)	PostgreSQL password
`-db-name`	`moonhub`	Database name

Environment variables

When flags are still at their defaults, database settings can be overridden (useful for Docker):

Variable	Overrides default for
`DB_HOST`	`-db-host` when it was `localhost`
`DB_PORT`	`-db-port` when it was `5432`
`DB_USER`	`-db-user` when it was `moonhub`
`DB_PASS`	`-db-pass` when empty
`DB_NAME`	`-db-name` when it was `moonhub`

Redis

Variable	Description
`REDIS_URL`	Redis URL for `NewRedisCache` (e.g. `redis://localhost:6379/0`). If unset or invalid, the client falls back to `localhost:6379`.

On startup the process runs directory.MigrationSQL against PostgreSQL (creates agents table and index).