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   1 # How to activate Pleroma in-database configuration
   2 ## Explanation
   3
   4 The configuration of Pleroma has traditionally been managed with a config file, e.g. `config/prod.secret.exs`. This method requires a restart of the application for any configuration changes to take effect. We have made it possible to control most settings in the AdminFE interface after running a migration script.
   5
   6 ## Migration to database config
   7
   8 1. Run the mix task to migrate to the database.
   9
  10   **Source:**
  11
  12   ```
  13   $ mix pleroma.config migrate_to_db
  14   ```
  15
  16   or
  17
  18   **OTP:**
  19
  20   *Note: OTP users need Pleroma to be running for `pleroma_ctl` commands to work*
  21
  22   ```
  23   $ ./bin/pleroma_ctl config migrate_to_db
  24   ```
  25
  26   ```
  27     Migrating settings from file: /home/pleroma/config/dev.secret.exs
  28
  29    Settings for key instance migrated.
  30    Settings for group :pleroma migrated.
  31   ```
  32
  33 2. It is recommended to backup your config file now.
  34
  35   ```
  36   cp config/dev.secret.exs config/dev.secret.exs.orig
  37   ```
  38
  39 3. Edit your Pleroma config to enable database configuration:
  40
  41   ```
  42   config :pleroma, configurable_from_database: true
  43   ```
  44
  45 4. ⚠️ **THIS IS NOT REQUIRED** ⚠️
  46
  47   Now you can edit your config file and strip it down to the only settings which are not possible to control in the database. e.g., the Postgres (Repo) and webserver (Endpoint) settings cannot be controlled in the database because the application needs the settings to start up and access the database.
  48
  49   Any settings in the database will override those in the config file, but you may find it less confusing if the setting is only declared in one place.
  50
  51   A non-exhaustive list of settings that are only possible in the config file include the following:
  52
  53   * config :pleroma, Pleroma.Web.Endpoint
  54   * config :pleroma, Pleroma.Repo
  55   * config :pleroma, configurable\_from\_database
  56   * config :pleroma, :database, rum_enabled
  57   * config :pleroma, :connections_pool
  58
  59   Here is an example of a server config stripped down after migration:
  60
  61   ```
  62   use Mix.Config
  63
  64   config :pleroma, Pleroma.Web.Endpoint,
  65     url: [host: "cool.pleroma.site", scheme: "https", port: 443]
  66
  67   config :pleroma, Pleroma.Repo,
  68     adapter: Ecto.Adapters.Postgres,
  69     username: "pleroma",
  70     password: "MySecretPassword",
  71     database: "pleroma_prod",
  72     hostname: "localhost"
  73
  74   config :pleroma, configurable_from_database: true
  75   ```
  76
  77 5. Restart your instance and you can now access the Settings tab in AdminFE.
  78
  79
  80 ## Reverting back from database config
  81
  82 1. Run the mix task to migrate back from the database. You'll receive some debugging output and a few messages informing you of what happened.
  83
  84   **Source:**
  85
  86   ```
  87   $ mix pleroma.config migrate_from_db
  88   ```
  89
  90   or
  91
  92   **OTP:**
  93
  94   ```
  95   $ ./bin/pleroma_ctl config migrate_from_db
  96   ```
  97
  98   ```
  99   10:26:30.593 [debug] QUERY OK source="config" db=9.8ms decode=1.2ms queue=26.0ms idle=0.0ms
 100   SELECT c0."id", c0."key", c0."group", c0."value", c0."inserted_at", c0."updated_at" FROM "config" AS c0 []
 101
 102   10:26:30.659 [debug] QUERY OK source="config" db=1.1ms idle=80.7ms
 103   SELECT c0."id", c0."key", c0."group", c0."value", c0."inserted_at", c0."updated_at" FROM "config" AS c0 []
 104   Database configuration settings have been saved to config/dev.exported_from_db.secret.exs
 105   ```
 106
 107 2. Remove `config :pleroma, configurable_from_database: true` from your config. The in-database configuration still exists, but it will not be used. Future migrations will erase the database config before importing your config file again.
 108
 109 3. Restart your instance.
 110
 111 ## Debugging
 112
 113 ### Clearing database config
 114 You can clear the database config with the following command:
 115
 116   **Source:**
 117
 118   ```
 119   $ mix pleroma.config reset
 120   ```
 121
 122   or
 123
 124   **OTP:**
 125
 126   ```
 127   $ ./bin/pleroma_ctl config reset
 128   ```
 129
 130 Additionally, every time you migrate the configuration to the database the config table is automatically truncated to ensure a clean migration.
 131
 132 ### Manually removing a setting
 133 If you encounter a situation where the server cannot run properly because of an invalid setting in the database and this is preventing you from accessing AdminFE, you can manually remove the offending setting if you know which one it is.
 134
 135 e.g., here is an example showing a the removal of the `config :pleroma, :instance` settings:
 136
 137   **Source:**
 138
 139   ```
 140   $ mix pleroma.config delete pleroma instance
 141   Are you sure you want to continue? [n]  y
 142   config :pleroma, :instance deleted from the ConfigDB.
 143   ```
 144
 145   or
 146
 147   **OTP:**
 148
 149   ```
 150   $ ./bin/pleroma_ctl config delete pleroma instance
 151   Are you sure you want to continue? [n]  y
 152   config :pleroma, :instance deleted from the ConfigDB.
 153   ```
 154
 155 Now the `config :pleroma, :instance` settings have been removed from the database.