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Merge pull request #1108 from rfwatson/add-db-connections-setting

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Add DATABASE_MAX_CONNS config setting
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Daniel García 2020-10-10 00:25:03 +02:00 committed by GitHub
commit 296063e135
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3 changed files with 18 additions and 1 deletions
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4
.env.template
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@ -20,6 +20,10 @@
## - https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING
# DATABASE_URL=postgresql://user:password@host[:port]/database_name
## Database max connections
## Define the size of the connection pool used for connecting to the database.
# DATABASE_MAX_CONNS=10
## Individual folders, these override %DATA_FOLDER%
# RSA_KEY_FILENAME=data/rsa_key
# ICON_CACHE_FOLDER=data/icon_cache

10
src/config.rs
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@ -222,6 +222,8 @@ make_config! {
data_folder: String, false, def, "data".to_string();
/// Database URL
database_url: String, false, auto, |c| format!("{}/{}", c.data_folder, "db.sqlite3");
/// Database connection pool size
database_max_conns: u32, false, def, 10;
/// Icon cache folder
icon_cache_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "icon_cache");
/// Attachments folder
@ -429,6 +431,14 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
// Validate connection URL is valid and DB feature is enabled
DbConnType::from_url(&cfg.database_url)?;
let limit = 256;
if cfg.database_max_conns < 1 || cfg.database_max_conns > limit {
err!(format!(
"`DATABASE_MAX_CONNS` contains an invalid value. Ensure it is between 1 and {}.",
limit,
));
}
let dom = cfg.domain.to_lowercase();
if !dom.starts_with("http://") && !dom.starts_with("https://") {
err!("DOMAIN variable needs to contain the protocol (http, https). Use 'http[s]://bw.example.com' instead of 'bw.example.com'");

5
src/db/mod.rs
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@ -51,7 +51,10 @@ macro_rules! generate_connections {
{
paste::paste!{ [< $name _migrations >]::run_migrations()?; }
let manager = ConnectionManager::new(&url);
let pool = Pool::builder().build(manager).map_res("Failed to create pool")?;
let pool = Pool::builder()
.max_size(CONFIG.database_max_conns())
.build(manager)
.map_res("Failed to create pool")?;
return Ok(Self::$name(pool));
}
#[cfg(not($name))]