diff --git a/dc/arista-proxy/proto/.gitignore b/dc/arista-proxy/proto/.gitignore
new file mode 100644
index 0000000..46ddcab
--- /dev/null
+++ b/dc/arista-proxy/proto/.gitignore
@@ -0,0 +1 @@
+arista.pb.go
diff --git a/dc/arista-proxy/proto/BUILD.bazel b/dc/arista-proxy/proto/BUILD.bazel
new file mode 100644
index 0000000..2df4f58
--- /dev/null
+++ b/dc/arista-proxy/proto/BUILD.bazel
@@ -0,0 +1,23 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
+
+proto_library(
+    name = "proto_proto",
+    srcs = ["arista.proto"],
+    visibility = ["//visibility:public"],
+)
+
+go_proto_library(
+    name = "proto_go_proto",
+    compilers = ["@io_bazel_rules_go//proto:go_grpc"],
+    importpath = "code.hackerspace.pl/hscloud/dc/arista-proxy/proto",
+    proto = ":proto_proto",
+    visibility = ["//visibility:public"],
+)
+
+go_library(
+    name = "go_default_library",
+    embed = [":proto_go_proto"],
+    importpath = "code.hackerspace.pl/hscloud/dc/arista-proxy/proto",
+    visibility = ["//visibility:public"],
+)
diff --git a/dc/arista-proxy/proto/arista.proto b/dc/arista-proxy/proto/arista.proto
new file mode 100644
index 0000000..2874f70
--- /dev/null
+++ b/dc/arista-proxy/proto/arista.proto
@@ -0,0 +1,31 @@
+syntax = "proto3";
+package proto;
+option go_package = "code.hackerspace.pl/hscloud/dc/arista-proxy/proto";
+
+message ShowVersionRequest {
+};
+
+message ShowVersionResponse {
+    string model_name = 1;
+    string internal_version = 2;
+    string system_mac_address = 3;
+    string serial_number = 4;
+    int64 mem_total = 5;
+    double bootup_timestamp = 6;
+    int64 mem_free = 7;
+    string version = 8;
+    string architecture = 9;
+    string internal_build_id = 10;
+    string hardware_revision = 11;
+};
+
+message ShowEnvironmentTemperatureRequest {
+};
+
+message ShowEnvironmentTemperatureResponse {
+};
+
+service AristaProxy {
+    rpc ShowVersion(ShowVersionRequest) returns (ShowVersionResponse);
+    rpc ShowEnvironmentTemperature(ShowEnvironmentTemperatureRequest) returns (ShowEnvironmentTemperatureResponse);
+};