Graham McIntire
eeeebef34e
- Add SKIP_DB_CREATE env var to skip database creation when using PgBouncer - Fix redis_children() to return proper child specs - Implement zero-downtime graceful shutdown without user notifications - Add health check plug for Kubernetes probes - Remove user-facing shutdown notifications for seamless deployments Co-Authored-By: Claude <noreply@anthropic.com>
85 lines
2.1 KiB
Elixir
85 lines
2.1 KiB
Elixir
defmodule Aprsme.Release do
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@moduledoc """
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Used for executing DB release tasks when run in production without Mix
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installed.
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"""
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@app :aprsme
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def migrate do
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require Logger
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# Initialize deployment timestamp first
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deployed_at = init()
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Logger.info("Deployment timestamp: #{deployed_at}")
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# Gettext translations are automatically compiled during Mix compilation
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# Skip database creation when using PgBouncer
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# The database should already exist
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if System.get_env("SKIP_DB_CREATE") != "true" do
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create_database()
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end
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# Run migrations
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{:ok, _, _} = Ecto.Migrator.with_repo(Aprsme.Repo, &Ecto.Migrator.run(&1, :up, all: true))
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end
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defp create_database do
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require Logger
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case Aprsme.Repo.__adapter__().storage_up(Aprsme.Repo.config()) do
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:ok ->
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Logger.info("Database created successfully")
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{:error, :already_up} ->
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Logger.info("Database already exists")
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{:error, error} ->
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Logger.error("Failed to create database: #{inspect(error)}")
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raise "Database creation failed: #{inspect(error)}"
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end
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end
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def rollback(repo, version) do
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load_app()
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{:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version))
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end
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defp load_app do
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Application.load(@app)
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end
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@doc """
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Initialize release-specific configuration.
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This is called during application startup.
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"""
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def init do
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# Read deployment timestamp from file
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deployed_at = read_deployment_timestamp()
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# Add to application config
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Application.put_env(:aprsme, :deployed_at, deployed_at)
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deployed_at
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end
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@doc """
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Get the deployment timestamp.
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"""
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def deployed_at do
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Application.get_env(:aprsme, :deployed_at) || DateTime.utc_now()
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end
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defp read_deployment_timestamp do
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case File.read("/app/deployed_at.txt") do
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{:ok, timestamp} ->
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case DateTime.from_iso8601(String.trim(timestamp)) do
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{:ok, datetime, _} -> datetime
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_ -> DateTime.utc_now()
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end
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_ ->
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# Fallback to current time if file doesn't exist
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DateTime.utc_now()
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end
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end
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end
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