feat: add configurable proxy timeout settings

Author: pacoyang

custom-domain/dstack-ingress/README.md

@@ -177,6 +177,9 @@ configs:
 - `TARGET_ENDPOINT`: The plain HTTP endpoint of your dstack application (for single domain mode)
 - `SET_CAA`: Set to `true` to enable CAA record setup
 - `CLIENT_MAX_BODY_SIZE`: Optional value for nginx `client_max_body_size` (numeric with optional `k|m|g` suffix, e.g. `50m`) in single-domain mode
+- `PROXY_READ_TIMEOUT`: Optional value for nginx `proxy_read_timeout` (numeric with optional `s|m|h` suffix, e.g. `30s`) in single-domain mode
+- `PROXY_SEND_TIMEOUT`: Optional value for nginx `proxy_send_timeout` (numeric with optional `s|m|h` suffix, e.g. `30s`) in single-domain mode
+- `PROXY_CONNECT_TIMEOUT`: Optional value for nginx `proxy_connect_timeout` (numeric with optional `s|m|h` suffix, e.g. `10s`) in single-domain mode
 
 **Backward Compatibility:**
 

custom-domain/dstack-ingress/scripts/entrypoint.sh

@@ -19,6 +19,15 @@ fi
 if ! CLIENT_MAX_BODY_SIZE=$(sanitize_client_max_body_size "$CLIENT_MAX_BODY_SIZE"); then
     exit 1
 fi
+if ! PROXY_READ_TIMEOUT=$(sanitize_proxy_timeout "$PROXY_READ_TIMEOUT"); then
+    exit 1
+fi
+if ! PROXY_SEND_TIMEOUT=$(sanitize_proxy_timeout "$PROXY_SEND_TIMEOUT"); then
+    exit 1
+fi
+if ! PROXY_CONNECT_TIMEOUT=$(sanitize_proxy_timeout "$PROXY_CONNECT_TIMEOUT"); then
+    exit 1
+fi
 if ! TXT_PREFIX=$(sanitize_dns_label "$TXT_PREFIX"); then
     exit 1
 fi
@@ -73,6 +82,21 @@ setup_nginx_conf() {
         client_max_body_size_conf="    client_max_body_size ${CLIENT_MAX_BODY_SIZE};"
     fi
 
+    local proxy_read_timeout_conf=""
+    if [ -n "$PROXY_READ_TIMEOUT" ]; then
+        proxy_read_timeout_conf="        ${PROXY_CMD}_read_timeout ${PROXY_READ_TIMEOUT};"
+    fi
+
+    local proxy_send_timeout_conf=""
+    if [ -n "$PROXY_SEND_TIMEOUT" ]; then
+        proxy_send_timeout_conf="        ${PROXY_CMD}_send_timeout ${PROXY_SEND_TIMEOUT};"
+    fi
+
+    local proxy_connect_timeout_conf=""
+    if [ -n "$PROXY_CONNECT_TIMEOUT" ]; then
+        proxy_connect_timeout_conf="        ${PROXY_CMD}_connect_timeout ${PROXY_CONNECT_TIMEOUT};"
+    fi
+
     cat <<EOF >/etc/nginx/conf.d/default.conf
 server {
     listen ${PORT} ssl;
@@ -120,6 +144,9 @@ ${client_max_body_size_conf}
         ${PROXY_CMD}_set_header X-Real-IP \$remote_addr;
         ${PROXY_CMD}_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
         ${PROXY_CMD}_set_header X-Forwarded-Proto \$scheme;
+${proxy_read_timeout_conf}
+${proxy_send_timeout_conf}
+${proxy_connect_timeout_conf}
     }
 
     location /evidences/ {

custom-domain/dstack-ingress/scripts/functions.sh

@@ -68,3 +68,17 @@ sanitize_dns_label() {
         return 1
     fi
 }
+
+sanitize_proxy_timeout() {
+    local candidate="$1"
+    if [ -z "$candidate" ]; then
+        echo ""
+        return 0
+    fi
+    if [[ "$candidate" =~ ^[0-9]+[smh]?$ ]]; then
+        echo "$candidate"
+    else
+        echo "Warning: Ignoring invalid proxy timeout value: $candidate" >&2
+        echo ""
+    fi
+}

custom-domain/dstack-ingress/scripts/tests/test_sanitizers.sh

@@ -47,6 +47,11 @@ assert_equal "$(sanitize_target_endpoint grpc://svc:50051)" "grpc://svc:50051" "
 assert_equal "$(sanitize_client_max_body_size 50m)" "50m" "sanitize_client_max_body_size accepts suffix"
 assert_equal "$(sanitize_dns_label test_label)" "test_label" "sanitize_dns_label accepts lowercase"
 assert_equal "$(sanitize_dns_label test-label)" "test-label" "sanitize_dns_label accepts hyphen"
+assert_equal "$(sanitize_proxy_timeout 30)" "30" "sanitize_proxy_timeout accepts numeric value"
+assert_equal "$(sanitize_proxy_timeout 30s)" "30s" "sanitize_proxy_timeout accepts seconds suffix"
+assert_equal "$(sanitize_proxy_timeout 5m)" "5m" "sanitize_proxy_timeout accepts minutes suffix"
+assert_equal "$(sanitize_proxy_timeout 1h)" "1h" "sanitize_proxy_timeout accepts hours suffix"
+assert_equal "$(sanitize_proxy_timeout '')" "" "sanitize_proxy_timeout accepts empty value"
 
 # Failing cases
 assert_fails "sanitize_port rejects non-numeric" sanitize_port abc
@@ -60,6 +65,26 @@ else
     printf '%s\n' "$warning_output"
     failures=$((failures + 1))
 fi
+
+# Test invalid timeout values
+timeout_warning="$(sanitize_proxy_timeout "30ms" 2>&1 || true)"
+if [[ "$timeout_warning" == "Warning: Ignoring invalid proxy timeout value: 30ms" ]]; then
+    echo "PASS: sanitize_proxy_timeout warns on invalid suffix (ms)"
+else
+    echo "FAIL: sanitize_proxy_timeout warning unexpected"
+    printf '%s\n' "$timeout_warning"
+    failures=$((failures + 1))
+fi
+
+timeout_warning="$(sanitize_proxy_timeout "abc" 2>&1 || true)"
+if [[ "$timeout_warning" == "Warning: Ignoring invalid proxy timeout value: abc" ]]; then
+    echo "PASS: sanitize_proxy_timeout warns on non-numeric value"
+else
+    echo "FAIL: sanitize_proxy_timeout warning unexpected"
+    printf '%s\n' "$timeout_warning"
+    failures=$((failures + 1))
+fi
+
 assert_fails "sanitize_dns_label rejects invalid characters" sanitize_dns_label "bad*label"
 
 if [[ $failures -eq 0 ]]; then