99 lines
3.4 KiB
Zig
99 lines
3.4 KiB
Zig
const std = @import("std");
|
|
const builtin = @import("builtin");
|
|
const sql = @import("sql");
|
|
const http = @import("http");
|
|
const util = @import("util");
|
|
|
|
const api = @import("api");
|
|
pub const migrations = @import("./migrations.zig"); // TODO
|
|
const c = @import("./controllers.zig");
|
|
|
|
pub const Config = struct {
|
|
worker_threads: usize = 10,
|
|
db: sql.Config,
|
|
};
|
|
|
|
fn loadConfig(alloc: std.mem.Allocator) !Config {
|
|
var file = try std.fs.cwd().openFile("config.json", .{});
|
|
defer file.close();
|
|
|
|
const bytes = try file.reader().readAllAlloc(alloc, 1 << 63);
|
|
defer alloc.free(bytes);
|
|
|
|
var ts = std.json.TokenStream.init(bytes);
|
|
return std.json.parse(Config, &ts, .{ .allocator = alloc });
|
|
}
|
|
|
|
const admin_origin_envvar = "CLUSTER_ADMIN_ORIGIN";
|
|
const admin_username_envvar = "CLUSTER_ADMIN_USERNAME";
|
|
const admin_password_envvar = "CLUSTER_ADMIN_PASSWORD";
|
|
|
|
fn runAdminSetup(db: sql.Db, alloc: std.mem.Allocator) !void {
|
|
const origin = std.os.getenv(admin_origin_envvar) orelse return error.MissingArgument;
|
|
const username = std.os.getenv(admin_username_envvar) orelse return error.MissingArgument;
|
|
const password = std.os.getenv(admin_password_envvar) orelse return error.MissingArgument;
|
|
|
|
try api.setupAdmin(db, origin, username, password, alloc);
|
|
}
|
|
|
|
fn prepareDb(pool: *sql.ConnPool, alloc: std.mem.Allocator) !void {
|
|
const db = try pool.acquire();
|
|
defer db.releaseConnection();
|
|
|
|
try migrations.up(db);
|
|
|
|
if (!try api.isAdminSetup(db)) {
|
|
std.log.info("Performing first-time admin creation...", .{});
|
|
|
|
runAdminSetup(db, alloc) catch |err| switch (err) {
|
|
error.MissingArgument => {
|
|
std.log.err(
|
|
\\First time setup required but arguments not provided.
|
|
\\Please provide the following arguments via environment variable:
|
|
\\- {s}: The origin to serve the cluster admin panel at (ex: https://admin.example.com)
|
|
\\- {s}: The username for the initial cluster operator
|
|
\\- {s}: The password for the initial cluster operator
|
|
,
|
|
.{ admin_origin_envvar, admin_username_envvar, admin_password_envvar },
|
|
);
|
|
std.os.exit(1);
|
|
},
|
|
else => return err,
|
|
};
|
|
}
|
|
}
|
|
|
|
const ConnectionId = u64;
|
|
var next_conn_id = std.atomic.Atomic(ConnectionId).init(0);
|
|
|
|
fn thread_main(src: *api.ApiSource, srv: *http.Server) void {
|
|
util.seedThreadPrng() catch unreachable;
|
|
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
|
|
defer _ = gpa.deinit();
|
|
srv.handleLoop(gpa.allocator(), .{ .api_source = src, .allocator = gpa.allocator() }, c.router);
|
|
}
|
|
|
|
pub fn main() !void {
|
|
try util.seedThreadPrng();
|
|
|
|
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
|
|
var cfg = try loadConfig(gpa.allocator());
|
|
var pool = try sql.ConnPool.init(cfg.db);
|
|
try prepareDb(&pool, gpa.allocator());
|
|
|
|
var api_src = try api.ApiSource.init(&pool);
|
|
var srv = http.Server.init();
|
|
defer srv.deinit();
|
|
|
|
const addr = "::1";
|
|
const port = 8080;
|
|
try srv.listen(std.net.Address.parseIp(addr, port) catch unreachable);
|
|
std.log.info("Listening on {s}:{}", .{ addr, port });
|
|
|
|
var i: usize = 0;
|
|
while (i < cfg.worker_threads - 1) : (i += 1) {
|
|
_ = try std.Thread.spawn(.{}, thread_main, .{ &api_src, &srv });
|
|
}
|
|
thread_main(&api_src, &srv);
|
|
}
|