Deployment and lifecycle management for Nix
split database config and provide prod runtime env
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-18
+5
-1
config/dev.exs
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-1
config/dev.exs
···
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# Configure your database
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config :sower, Sower.Repo,
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url: "ecto://postgres:postgres@localhost/sower_dev",
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username: "postgres",
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password: "postgres",
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hostname: "localhost",
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database: "sower_dev",
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port: 5432,
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show_sensitive_data_on_connection_error: true,
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pool_size: 10
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-3
config/prod.exs
-3
config/prod.exs
···
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# Do not print debug messages in production
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config :logger, level: :info
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# we use nix for building prod and it has a sandbox
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config :ex_git, ExGit, skip_compilation?: true
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-
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# Runtime production configuration, including reading
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# of environment variables, is done on config/runtime.exs.
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config/runtime.exs
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-14
config/runtime.exs
···
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config :sower, SowerWeb.Endpoint, server: true
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end
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config :sower,
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scm_secret: "five",
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working_dir: System.get_env("SOWER_WORKDIR", "#{File.cwd() |> elem(1)}/tmp")
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if config_env() == :prod do
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database_url =
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System.get_env("SOWER_DATABASE_URL") ||
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raise """
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environment variable SOWER_DATABASE_URL is missing.
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For example: ecto://postgres:postgres@localhost/ecto_simple
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"""
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db_pass_file =
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System.get_env("SOWER_DATABASE_PASS_FILE") || raise "missing $SOWER_DATABASE_PASS_FILE"
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config :sower, Sower.Repo, url: database_url, socket_options: [:inet6]
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config :sower, Sower.Repo,
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username: System.get_env("SOWER_DATABASE_USER", "postgres"),
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password: db_pass_file |> File.read!() |> String.trim(),
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hostname: System.get_env("SOWER_DATABASE_HOST", "localhost"),
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database: System.get_env("SOWER_DATABASE_NAME", "sower"),
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port: System.get_env("SOWER_DATABASE_PORT", "5432") |> String.to_integer()
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# The secret key base is used to sign/encrypt cookies and other secrets.
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# A default value is used in config/dev.exs and config/test.exs but you
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You can generate one by calling: mix phx.gen.secret
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"""
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-
host = System.get_env("SOWER_HOSTNAME") || "example.com"
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port = String.to_integer(System.get_env("SOWER_LISTEN_PORT") || "4000")
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host = System.get_env("SOWER_HOSTNAME") || raise "missing $SOWER_HOSTNAME"
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port = String.to_integer(System.get_env("SOWER_LISTEN_PORT", "4000"))
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{:ok, listen_ip} =
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System.get_env("SOWER_LISTEN_ADDRESS", "::1")
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System.get_env("SOWER_LISTEN_ADDRESS", "127.0.0.1")
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|> to_charlist()
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|> :inet.parse_address()
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