Add pgcat user (#546)

* Add pgcat user

* warn

* dev

Author: levkk

.github/workflows/publish-deb-package.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       packageVersion:
-        default: "1.1.1"
+        default: "1.1.2-dev"
 jobs:
   build:
     strategy:

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "pgcat"
-version = "1.1.1"
+version = "1.1.2-dev"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

Cargo.toml

@@ -1,4 +1,9 @@
 #!/bin/bash
+set -e
 
 systemctl daemon-reload
 systemctl enable pgcat
+
+if ! id pgcat 2> /dev/null; then
+	useradd -s /usr/bin/false pgcat
+fi

postinst

@@ -1,3 +1,4 @@
 #!/bin/bash
+set -e
 
 systemctl daemon-reload

postrm

@@ -1,4 +1,5 @@
 #!/bin/bash
+set -e
 
 systemctl stop pgcat
 systemctl disable pgcat

prerm

@@ -9,7 +9,7 @@ use postgres_protocol::message;
 use std::collections::{BTreeSet, HashMap, HashSet};
 use std::mem;
 use std::net::IpAddr;
-use std::sync::{Arc, Once};
+use std::sync::Arc;
 use std::time::SystemTime;
 use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, BufStream};
 use tokio::net::TcpStream;