fix: docker hosts and ports env variable wrongly used (#2050)

* fix: docker hosts and ports env variable wrongly used

* fix: ci issues

packages/docker/src/env.ts

@@ -0,0 +1,18 @@
+import { createEnv } from "@t3-oss/env-nextjs";
+import { z } from "zod";
+
+import { shouldSkipEnvValidation } from "@homarr/common/env-validation";
+
+export const env = createEnv({
+  server: {
+    // Comma separated list of docker hostnames that can be used to connect to query the docker endpoints (localhost:2375,host.docker.internal:2375, ...)
+    DOCKER_HOSTNAMES: z.string().optional(),
+    DOCKER_PORTS: z.string().optional(),
+  },
+  runtimeEnv: {
+    DOCKER_HOSTNAMES: process.env.DOCKER_HOSTNAMES,
+    DOCKER_PORTS: process.env.DOCKER_PORTS,
+  },
+  skipValidation: shouldSkipEnvValidation(),
+  emptyStringAsUndefined: true,
+});