add migration

flake.nix

@@ -35,7 +35,7 @@
           name = "customer_service";
           contents = [ package pkgs.bashInteractive pkgs.busybox pkgs.shadow ];
           config = {
-            Cmd = [ "${package}/bin/customer_service" "start" ];
+            Cmd = [ "${package}/bin/customer_service" ];
           };
         };
       in

lib/customer_service/release.ex

@@ -0,0 +1,30 @@
+defmodule CustomerService.Release do
+  @moduledoc """
+  Used for executing DB release tasks when run in production without Mix
+  installed.
+  """
+  @app :customer_service
+
+  def migrate do
+    load_app()
+
+    for repo <- repos() do
+      {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true))
+    end
+  end
+
+  def rollback(repo, version) do
+    load_app()
+    {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version))
+  end
+
+  defp repos do
+    Application.fetch_env!(@app, :ecto_repos)
+  end
+
+  defp load_app do
+    # Many platforms require SSL when connecting to the database
+    Application.ensure_all_started(:ssl)
+    Application.ensure_loaded(@app)
+  end
+end

ops/chart/values.yaml

@@ -3,11 +3,29 @@ controllers:
     enabled: true
     type: deployment
     replicas: 1
+
+    initContainers:
+      migrate:
+        image:
+          repository: gitea.corredorconect.com/software-engineering/customer-service
+          tag: '{{ $.Chart.AppVersion }}'
+        args:
+          - "eval"
+          - "CustomService.Release.migrate"
+        env:
+          MIX_ENV: prod
+          DATABASE_URL:
+            valueFrom:
+              secretKeyRef:
+                name: policy-service-pg-app
+                key: uri
     containers:
       main:
         image:
           repository: gitea.corredorconect.com/software-engineering/customer-service
           tag: '{{ $.Chart.AppVersion }}'
+        args:
+          - "start"
         env:
           LOG_LEVEL: info
           MIX_ENV: prod

rel/overlays/bin/migrate

@@ -0,0 +1,5 @@
+#!/bin/sh
+set -eu
+
+cd -P -- "$(dirname -- "$0")"
+exec ./customer_service eval CustomerService.Release.migrate

rel/overlays/bin/migrate.bat

@@ -0,0 +1 @@
+call "%~dp0\customer_service" eval CustomerService.Release.migrate

rel/overlays/bin/server

@@ -0,0 +1,5 @@
+#!/bin/sh
+set -eu
+
+cd -P -- "$(dirname -- "$0")"
+PHX_SERVER=true exec ./customer_service start

rel/overlays/bin/server.bat

@@ -0,0 +1,2 @@
+set PHX_SERVER=true
+call "%~dp0\customer_service" start