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Add service resize command to all 38 language implementations

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Adds --resize ID --vcpu N flag to resize running services live.
PATCH /services/{id} with {"vcpu": 1-8} applies CPU/memory limits
without restart. Memory formula: 2GB per vCPU.
This commit is contained in:
Russell Ballestrini 2026-01-11 17:19:50 -05:00
parent 87397949d1
commit c219d6e550
38 changed files with 1214 additions and 45 deletions
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37
un.zig
View file

@ -397,6 +397,8 @@ pub fn main() !u8 {
var command: ?[]const u8 = null;
var dump_bootstrap: ?[]const u8 = null;
var dump_file: ?[]const u8 = null;
var resize: ?[]const u8 = null;
var vcpu: i32 = 0;
var input_files = std.ArrayList([]const u8).init(allocator);
defer input_files.deinit();
var svc_envs = std.ArrayList([]const u8).init(allocator);
@ -444,6 +446,12 @@ pub fn main() !u8 {
} else if (mem.eql(u8, args[i], "--dump-file") and i + 1 < args.len) {
i += 1;
dump_file = args[i];
} else if (mem.eql(u8, args[i], "--resize") and i + 1 < args.len) {
i += 1;
resize = args[i];
} else if (mem.eql(u8, args[i], "-v") and i + 1 < args.len) {
i += 1;
vcpu = std.fmt.parseInt(i32, args[i], 10) catch 0;
} else if (mem.eql(u8, args[i], "-e") and i + 1 < args.len) {
i += 1;
try svc_envs.append(args[i]);
@ -552,6 +560,35 @@ pub fn main() !u8 {
std.debug.print("\x1b[31mError: Failed to fetch bootstrap (service not running or no bootstrap file)\x1b[0m\n", .{});
return 1;
}
} else if (resize) |resize_id| {
// Validate vcpu
if (vcpu < 1 or vcpu > 8) {
std.debug.print("{s}Error: --resize requires -v N (1-8){s}\n", .{ RED, RESET });
return 1;
}
// Build JSON body
var vcpu_buf: [16]u8 = undefined;
const vcpu_str = std.fmt.bufPrint(&vcpu_buf, "{d}", .{vcpu}) catch "0";
const json = try std.fmt.allocPrint(allocator, "{{\"vcpu\":{s}}}", .{vcpu_str});
defer allocator.free(json);
// Build path
const path = try std.fmt.allocPrint(allocator, "/services/{s}", .{resize_id});
defer allocator.free(path);
// Build auth headers
const auth_headers = try buildAuthCmd(allocator, "PATCH", path, json, public_key, secret_key);
defer allocator.free(auth_headers);
// Execute PATCH request
const cmd = try std.fmt.allocPrint(allocator, "curl -s -X PATCH '{s}/services/{s}' -H 'Content-Type: application/json' {s} -d '{s}'", .{ API_BASE, resize_id, auth_headers, json });
defer allocator.free(cmd);
_ = std.c.system(cmd.ptr);
// Calculate RAM
const ram = vcpu * 2;
std.debug.print("\n{s}Service resized to {d} vCPU, {d} GB RAM{s}\n", .{ GREEN, vcpu, ram, RESET });
} else if (name) |n| {
var json_buf: [65536]u8 = undefined;
var json_stream = std.io.fixedBufferStream(&json_buf);