feat: add Dockerfile and test suite for memory leak detection

Author: infezek

.memory_leak/Dockerfile

@@ -0,0 +1,23 @@
+FROM alpine:3.21.2 as libjwt-builder
+
+WORKDIR /home/app
+RUN apk add --no-cache git cmake make gcc g++ jansson-dev openssl-dev 
+RUN git clone --depth 1 --branch v3.2.0 https://github.com/benmcollins/libjwt.git && \
+    mkdir libjwt/build && \
+    cd libjwt/build && cmake .. && make && make install
+
+FROM openresty/openresty:1.25.3.2-3-bullseye-valgrind
+
+RUN apt update
+RUN apt install -y cpanminus valgrind libjansson-dev  # Substituí apk por apt
+RUN cpanm -v --notest Test::Nginx
+
+COPY ./lib/resty/libjwt /usr/local/openresty/lualib/resty/libjwt
+COPY --from=libjwt-builder /usr/local/lib/libjwt.so /usr/local/lib/libjwt.so
+RUN ldconfig  # Atualiza cache do linker para garantir que libjwt seja encontrada
+
+COPY ./.memory_leak/test /t
+COPY ./.memory_leak/valgrind.suppress /valgrind.suppress
+COPY ./.memory_leak/valgrind.awk /valgrind.awk
+COPY ./.memory_leak/test_memory_leak.sh /test_memory_leak.sh
+CMD ["/bin/bash", "-c", "/test_memory_leak.sh"]

.memory_leak/test/teste.t

@@ -0,0 +1,54 @@
+# vim:set ft= ts=4 sw=4 et fdm=marker:
+
+use Test::Nginx::Socket::Lua;
+
+repeat_each(10);
+
+plan tests => blocks() * repeat_each() * 2;
+
+run_tests();
+
+__DATA__
+
+=== TEST 1: sanity (integer)
+--- config
+    location /lua {
+        echo 2;
+    }
+--- request
+GET /lua
+--- response_body
+2
+
+=== TEST 2: sanity (string)
+--- config
+    location /public {
+        default_type application/json;
+        return 200 '{"message": "Hello, World!"}\n';
+    }
+--- request
+GET /public
+--- response_body
+{"message": "Hello, World!"}
+
+=== TEST 3: sanity (string)
+--- config
+    location = /t {
+        content_by_lua_block {
+            local ffi = require("ffi");
+
+            -- Define the C functions we need
+            ffi.cdef[[
+            void* malloc(size_t size);
+            void free(void* ptr);
+            ]]
+
+            local leak_size = 1024 * 1024
+            -- local ptr = ffi.C.malloc(leak_size);
+            ngx.say("testing the tsuru")
+        }
+    }
+--- request
+GET /t
+--- response_body
+testing the tsuru

.memory_leak/test_memory_leak.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+echo "Running tests without valgrind"
+TEST_NGINX_USE_VALGRIND=1 prove -r t 2>&1 | tee /tmp/result.TEST_NGINX_USE_VALGRIND
+awk -f /valgrind.awk /tmp/result.TEST_NGINX_USE_VALGRIND > /tmp/has-valgrind.log
+if [[ -s /tmp/has-valgrind.log ]]; then
+  cat /tmp/has-valgrind.log >&2
+  exit 1
+fi
+echo "No valgrind errors found"
+exit 0

.memory_leak/valgrind.awk

@@ -0,0 +1,13 @@
+#!/bin/awk -f
+
+BEGIN {
+    sep
+    while (getline) {
+        if ($0 ~ /^==[[:digit:]]+==\s*$/) {
+            sep = "\n\n\n"
+        } else if ($0 ~ /^==[[:digit:]]+==/) {
+            printf "%s%s\n", sep, $0
+            sep = ""
+        }
+    }
+}

.memory_leak/valgrind.suppress

@@ -0,0 +1,57 @@
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Param
+   epoll_ctl(event)
+   fun:epoll_ctl
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   fun:ngx_single_process_cycle
+   fun:main
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:ngx_alloc
+   fun:ngx_set_environment
+   fun:ngx_single_process_cycle
+   fun:main
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Param
+   epoll_ctl(event)
+   fun:epoll_ctl
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   fun:ngx_handle_read_event
+   fun:ngx_http_init_connection
+   fun:ngx_event_accept
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   fun:ngx_process_events_and_timers
+   fun:ngx_single_process_cycle
+   fun:main
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Param
+   epoll_ctl(event)
+   fun:epoll_ctl
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   fun:ngx_handle_read_event
+   fun:ngx_http_lua_pipe_add_signal_handler
+   fun:ngx_http_lua_init_worker
+   fun:ngx_single_process_cycle
+   fun:main
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Param
+   epoll_ctl(event)
+   fun:epoll_ctl
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   obj:/usr/local/openresty-valgrind/nginx/sbin/nginx
+   fun:ngx_single_process_cycle
+   fun:main
+}

docker-compose.yaml

@@ -1,9 +1,17 @@
 services:
   nginx:
+    profiles:
+      - dev
     build:
       context: .
       dockerfile: Dockerfile.nginx
     ports:
       - "8888:8888"
     volumes:
       - ./tokens:/usr/share/tokens
+  memory_leak:
+    profiles:
+      - memory_leak
+    build:
+      context: .
+      dockerfile: ./.memory_leak/Dockerfile