Use judge0/api-base:0.3.0 that has new isolate. Remove stderr.txt fro…

…m sandbox.

Dockerfile

@@ -1,20 +1,21 @@
-FROM judge0/api-base:0.2.1
+FROM judge0/api-base:0.3.0
 
 RUN apt-get update && \
-    apt-get install -y \
+    apt-get install --no-install-recommends -y \
       libpq-dev \
       nodejs-legacy \
       npm \
-      sudo
+      sudo && \
+    rm -rf /var/lib/apt/lists/*
 
 ENV PATH "/usr/local/ruby-2.3.3/bin:/opt/.gem/bin:$PATH"
 ENV GEM_HOME "/opt/.gem/"
 RUN echo "gem: --no-document" > /root/.gemrc && \
     gem install \
-      rails:5.0 \
-      bundler \
-      pg && \
-    npm install -g aglio
+      rails:5.0.0 \
+      bundler:1.15.4 \
+      pg:0.18 && \
+    npm install -g aglio@2.3.0
 
 EXPOSE 3000
 
@@ -30,5 +31,5 @@ CMD rm -f tmp/pids/server.pid && \
     rails db:create db:migrate db:seed && \
     rails s -b 0.0.0.0
 
-LABEL maintainer="Herman Zvonimir Došilović, hermanz.dosilovic@gmail.com" \
-      version="1.1.1"
+LABEL maintainer="Herman Zvonimir Došilović, hermanz.dosilovic@gmail.com"
+LABEL version="1.1.1"

app/jobs/isolate_job.rb

@@ -51,12 +51,12 @@ def init
     @source = box + submission.language.source_file
     @stdin = workdir + "/" + STDIN_FILE
     @stdout = workdir + "/" + STDOUT_FILE
-    @stderr = box + STDERR_FILE
+    @stderr = workdir + "/" + STDERR_FILE
     @meta = workdir + "/" + META_FILE
   end
 
   def write
-    [stdin, stdout, meta].each do |f|
+    [stdin, stdout, stderr, meta].each do |f|
       `sudo touch #{f} && sudo chown $(whoami): #{f}`
     end
 
@@ -86,7 +86,6 @@ def compile
   def run
     command = "isolate #{cgroups} \
     -s \
-    -r #{STDERR_FILE} \
     -b #{id} \
     -M #{meta} \
     -t #{submission.cpu_time_limit} \
@@ -95,13 +94,13 @@ def run
     -k #{submission.stack_limit} \
     -p#{submission.max_processes_and_or_threads} \
     #{submission.enable_per_process_and_thread_memory_limit ? "--cg-mem=" : "-m "}#{submission.memory_limit} \
-    #{submission.enable_per_process_and_thread_time_limit ? "--cg-timing" : ""} \
+    #{submission.enable_per_process_and_thread_time_limit ? "--cg-timing" : "--no-cg-timing"} \
     -f #{submission.max_file_size} \
     -E HOME=#{workdir} \
     -d '/etc':'noexec' \
     --run \
     -- #{submission.language.run_cmd} \
-    < #{stdin} > #{stdout} \
+    < #{stdin} > #{stdout} 2> #{stderr} \
     "
 
     puts "[#{DateTime.now}] Running submission #{submission.token} (#{submission.id}):"