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Make database connections configurable by environment variables (#768)

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* Make env DB_MAX_SIZE and DB_MIN_IDLE recognizable

* Make database max size and minimum idle configurable

* Restore file permission

* Fail fast
This commit is contained in:
KITAITI Makoto 2020-05-07 02:27:59 +09:00 committed by GitHub
parent dabe904642
commit 3be842c653
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 16 additions and 3 deletions
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10
plume-models/src/config.rs
View file

@ -11,6 +11,8 @@ pub struct Config {
pub base_url: String,
pub database_url: String,
pub db_name: &'static str,
pub db_max_size: Option<u32>,
pub db_min_idle: Option<u32>,
pub search_index: String,
pub rocket: Result<RocketConfig, RocketError>,
pub logo: LogoConfig,
@ -193,6 +195,14 @@ lazy_static! {
var("ROCKET_PORT").unwrap_or_else(|_| "7878".to_owned())
)),
db_name: DB_NAME,
db_max_size: var("DB_MAX_SIZE").map_or(None, |s| Some(
s.parse::<u32>()
.expect("Couldn't parse DB_MAX_SIZE into u32")
)),
db_min_idle: var("DB_MIN_IDLE").map_or(None, |s| Some(
s.parse::<u32>()
.expect("Couldn't parse DB_MIN_IDLE into u32")
)),
#[cfg(feature = "postgres")]
database_url: var("DATABASE_URL")
.unwrap_or_else(|_| format!("postgres://plume:plume@localhost/{}", DB_NAME)),

9
src/main.rs
View file

@ -55,10 +55,13 @@ fn init_pool() -> Option<DbPool> {
}
let manager = ConnectionManager::<Connection>::new(CONFIG.database_url.as_str());
let pool = DbPool::builder()
let mut builder = DbPool::builder()
.connection_customizer(Box::new(PragmaForeignKey))
.build(manager)
.ok()?;
.min_idle(CONFIG.db_min_idle);
if let Some(max_size) = CONFIG.db_max_size {
builder = builder.max_size(max_size);
};
let pool = builder.build(manager).ok()?;
Instance::cache_local(&pool.get().unwrap());
Some(pool)
}