diff --git a/macros.build-constraints b/macros.build-constraints
index 00835da32618b53c02523ba7280f94bb711c3f80..30110bc08af55ba0c15b127212e412c68a47c2a4 100644
--- a/macros.build-constraints
+++ b/macros.build-constraints
@@ -28,15 +28,38 @@
     return clamp
   end
 
+  -- Check file exists
+  local function file_exists(path)
+    local file = io.open(path, "r")
+    if file ~= nil then
+      file:close()
+      return true
+    else
+      return false
+    end
+  end
+
   -- Parse meminfo to find the total amount of memory in the system
   local function getmem()
     local mem = 0
+    local docker_mem = 0
+    -- General environment
     for l in io.lines('/proc/meminfo') do
       if l:sub(1, 9) == "MemTotal:" then
         mem = math.tointeger(string.match(l, "MemTotal:%s+(%d+)"))
         break
       end
     end
+    -- Docker environment
+    if file_exists('/.dockerenv') then
+      for line in io.lines('/sys/fs/cgroup/memory/memory.limit_in_bytes') do
+        docker_mem = tonumber(line) // 1024
+        break
+      end
+      if docker_mem < mem then
+        mem = docker_mem
+      end
+    end
     return mem
   end
 
@@ -82,6 +105,18 @@
     mem_per_process = tonumber(mem_per_process)
   end
   local mem_total = 0
+  local docker_mem_total = 0
+  -- Check file exists
+  local function file_exists(path)
+    local file = io.open(path, "r")
+    if file ~= nil then
+      file:close()
+      return true
+    else
+      return false
+    end
+  end
+  -- General environment
   for line in io.lines('/proc/meminfo') do
     if line:sub(1, 9) == "MemTotal:" then
       local tokens = {}
@@ -92,6 +127,16 @@
       break
     end
   end
+  -- Docker environment
+  if file_exists('/.dockerenv') then
+    for line in io.lines('/sys/fs/cgroup/memory/memory.limit_in_bytes') do
+      docker_mem_total = tonumber(line) // 1024
+      break
+    end
+    if docker_mem_total < mem_total then
+      mem_total = docker_mem_total
+    end
+  end
   local max_jobs = mem_total // (mem_per_process * 1024)
   if max_jobs < 1 then
     max_jobs = 1
diff --git a/openEuler-rpm-config.spec b/openEuler-rpm-config.spec
index 7b8044c6d78655d5866f73537bce24c015a9991d..ef9fef1674b767f66f05cfb2d8de75e20b0dd833 100644
--- a/openEuler-rpm-config.spec
+++ b/openEuler-rpm-config.spec
@@ -3,7 +3,7 @@
 
 Name:		%{vendor}-rpm-config
 Version:	31
-Release:	34
+Release:	35
 License:	GPL+ AND MIT
 Summary:	specific rpm configuration files
 URL:		https://gitee.com/src-openeuler/openEuler-rpm-config
@@ -211,6 +211,9 @@ sed -i "s|@OSCPE@|$(cat /etc/system-release-cpe)|" %{buildroot}%{rpmvdir}/%{vend
 %{rpmvdir}/find-requires.ksyms
 
 %changelog
+* Fri Aug 29 2025 lingsheng <lingsheng1@h-partners.com> - 31-35
+- macros.build-constraints add docker support
+
 * Sat Aug 16 2025 Funda Wang <fundawang@yeah.net> - 31-34
 - add helper macro to deal with semver
 - add helper macro to deal with numeric version of perl modules