core: add ulimits configuration for Docker Swarm deployments

Users deploying to Docker Swarm can now configure resource ulimits
(nofile, nproc, etc.) to prevent applications from hitting system
limits that cause crashes or degraded performance.

packages/server/src/db/schema/shared.ts

@@ -86,6 +86,14 @@ export interface EndpointSpecSwarm {
 	Ports?: EndpointPortConfigSwarm[] | undefined;
 }
 
+export interface UlimitSwarm {
+	Name: string;
+	Soft: number;
+	Hard: number;
+}
+
+export type UlimitsSwarm = UlimitSwarm[];
+
 export const HealthCheckSwarmSchema = z
 	.object({
 		Test: z.array(z.string()).optional(),
@@ -189,3 +197,13 @@ export const EndpointSpecSwarmSchema = z
 		Ports: z.array(EndpointPortConfigSwarmSchema).optional(),
 	})
 	.strict();
+
+export const UlimitSwarmSchema = z
+	.object({
+		Name: z.string().min(1),
+		Soft: z.number().int().min(-1),
+		Hard: z.number().int().min(-1),
+	})
+	.strict();
+
+export const UlimitsSwarmSchema = z.array(UlimitSwarmSchema);