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postgresql migration

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This commit is contained in:
Aiden McClelland
2023-06-15 18:37:44 -06:00
committed by Aiden McClelland
parent ccbf71c5e7
commit a7f5124dfe
1 changed files with 64 additions and 13 deletions
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77
backend/src/init.rs
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@@ -17,6 +17,7 @@ use tokio::process::Command;
use crate::account::AccountInfo;
use crate::context::rpc::RpcContextConfig;
use crate::db::model::{IpInfo, ServerInfo, ServerStatus};
use crate::disk::mount::util::unmount;
use crate::install::PKG_ARCHIVE_DIR;
use crate::middleware::auth::LOCAL_AUTH_COOKIE_PATH;
use crate::sound::BEP;
@@ -24,6 +25,8 @@ use crate::system::time;
use crate::util::Invoke;
use crate::{Error, ARCH};
pub const PG_VERSION: usize = 15;
pub const SYSTEM_REBUILD_PATH: &str = "/media/embassy/config/system-rebuild";
pub const STANDBY_MODE_PATH: &str = "/media/embassy/config/standby";
@@ -76,17 +79,16 @@ impl InitReceipts {
// must be idempotent
pub async fn init_postgres(datadir: impl AsRef<Path>) -> Result<(), Error> {
let db_dir = datadir.as_ref().join("main/postgresql");
let is_mountpoint = || async {
Ok::<_, Error>(
tokio::process::Command::new("mountpoint")
.arg("/var/lib/postgresql")
.stdout(std::process::Stdio::null())
.stderr(std::process::Stdio::null())
.status()
.await?
.success(),
)
};
if tokio::process::Command::new("mountpoint")
.arg("/var/lib/postgresql")
.stdout(std::process::Stdio::null())
.stderr(std::process::Stdio::null())
.status()
.await?
.success()
{
unmount("/var/lib/postgresql").await?;
}
let exists = tokio::fs::metadata(&db_dir).await.is_ok();
if !exists {
Command::new("cp")
@@ -96,9 +98,44 @@ pub async fn init_postgres(datadir: impl AsRef<Path>) -> Result<(), Error> {
.invoke(crate::ErrorKind::Filesystem)
.await?;
}
if !is_mountpoint().await? {
crate::disk::mount::util::bind(&db_dir, "/var/lib/postgresql", false).await?;
let pg_version_string = PG_VERSION.to_string();
let pg_version_path = db_dir.join(&pg_version_string);
if tokio::fs::metadata(&pg_version_path).await.is_err() {
let mut old_version = PG_VERSION;
while old_version > 13
/* oldest pg version included in startos */
{
old_version -= 1;
let old_datadir = db_dir.join(old_version.to_string());
if tokio::fs::metadata(&old_datadir).await.is_ok() {
let tmp_dir = db_dir.join(format!("{PG_VERSION}.tmp"));
Command::new("cp")
.arg("-ra")
.arg(format!("/var/lib/postgresql/{PG_VERSION}"))
.arg(&tmp_dir)
.invoke(crate::ErrorKind::Filesystem)
.await?;
Command::new(format!("/usr/lib/postgresql/{PG_VERSION}/bin/pg_upgrade"))
.arg(format!(
"--old-bindir=/usr/lib/postgresql/{old_version}/bin"
))
.arg(format!(
"--old-datadir={}",
old_datadir.join("main").display()
))
.arg(format!("--new-datadir={}", tmp_dir.join("main").display()))
.arg(tmp_dir.join("main"))
.invoke(crate::ErrorKind::Database)
.await?;
tokio::fs::rename(&tmp_dir, db_dir.join(PG_VERSION.to_string())).await?;
break;
}
}
}
crate::disk::mount::util::bind(&db_dir, "/var/lib/postgresql", false).await?;
Command::new("chown")
.arg("-R")
.arg("postgres")
@@ -128,6 +165,20 @@ pub async fn init_postgres(datadir: impl AsRef<Path>) -> Result<(), Error> {
.invoke(crate::ErrorKind::Database)
.await?;
}
Command::new("systemctl")
.arg("status")
.arg("postgresql")
.invoke(crate::ErrorKind::Database)
.await?;
let mut versions = tokio::fs::read_dir("/var/lib/postgresql").await?;
while let Some(version) = versions.next_entry().await? {
if version.file_name() != &*pg_version_string {
tokio::fs::remove_dir_all(version.path()).await?;
}
}
Ok(())
}