diff --git a/src/spec/integration_support/constants.rb b/src/spec/integration_support/constants.rb
index 000020fc94..18d2691d33 100644
--- a/src/spec/integration_support/constants.rb
+++ b/src/spec/integration_support/constants.rb
@@ -3,7 +3,8 @@ module Constants
     BOSH_REPO_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..', '..', '..'))
     BOSH_REPO_PARENT_DIR = File.expand_path(File.join(BOSH_REPO_ROOT, '..'))
     BOSH_REPO_SRC_DIR = File.join(BOSH_REPO_ROOT, 'src')
-    INTEGRATION_BIN_DIR = File.join(BOSH_REPO_SRC_DIR, 'tmp', 'bin')
+    BOSH_REPO_SRC_TMP_DIR = File.join(BOSH_REPO_SRC_DIR, 'tmp')
+    INTEGRATION_BIN_DIR = File.join(BOSH_REPO_SRC_TMP_DIR, 'bin')
 
     SANDBOX_ASSETS_DIR = File.join(BOSH_REPO_SRC_DIR, 'spec', 'assets', 'sandbox')
     SANDBOX_CERTS_DIR = File.join(SANDBOX_ASSETS_DIR, 'ca', 'certs')
diff --git a/src/spec/integration_support/nginx_service.rb b/src/spec/integration_support/nginx_service.rb
index ad8f608c7c..5519bc24c8 100644
--- a/src/spec/integration_support/nginx_service.rb
+++ b/src/spec/integration_support/nginx_service.rb
@@ -91,7 +91,7 @@ def logfile_path(base_log_path)
   end
 
   class NginxInstaller
-    WORKING_DIR = File.join(IntegrationSupport::Constants::BOSH_REPO_SRC_DIR, 'tmp', 'integration-nginx-work')
+    WORK_DIR = File.join(IntegrationSupport::Constants::BOSH_REPO_SRC_TMP_DIR, 'nginx-work')
     EXECUTABLE_PATH = File.join(IntegrationSupport::Constants::INTEGRATION_BIN_DIR, 'sbin', 'nginx')
 
     def prepare
@@ -110,17 +110,17 @@ def should_compile?
 
     def compile
       # Clean up old compiled nginx bits to stay up-to-date
-      FileUtils.rm_rf(WORKING_DIR)
+      FileUtils.rm_rf(WORK_DIR)
 
-      FileUtils.mkdir_p(WORKING_DIR)
+      FileUtils.mkdir_p(WORK_DIR)
 
       run_command("echo '#{RUBY_PLATFORM}' > #{IntegrationSupport::Constants::INTEGRATION_BIN_DIR}/platform")
 
       # Make sure packaging script has its own blob copies so that blobs/ directory is not affected
       nginx_blobs_path = File.join(IntegrationSupport::Constants::BOSH_REPO_ROOT, 'packages', 'nginx')
-      run_command("cp -R #{nginx_blobs_path}/. #{File.join(WORKING_DIR)}")
+      run_command("cp -R #{nginx_blobs_path}/. #{WORK_DIR}")
 
-      Dir.chdir(WORKING_DIR) do
+      Dir.chdir(WORK_DIR) do
         packaging_script_path = File.join(IntegrationSupport::Constants::BOSH_REPO_ROOT, 'packages', 'nginx', 'packaging')
         run_command("bash #{packaging_script_path}", { 'BOSH_INSTALL_TARGET' => IntegrationSupport::Constants::INTEGRATION_BIN_DIR })
       end
@@ -129,7 +129,10 @@ def compile
     private
 
     def run_command(command, environment = {})
-      io = IO.popen([environment, 'bash', '-c', command])
+      command = [environment, 'bash', '-c', command]
+      puts "Running: #{command.join(' ')}"
+
+      io = IO.popen(command)
 
       lines =
         io.each_with_object("") do |line, collect|
@@ -140,14 +143,14 @@ def run_command(command, environment = {})
       io.close
       process_status = $?
 
-      raise "Command: #{command.inspect} failed with #{process_status.inspect}" unless process_status.success?
+      raise "Command: #{command.inspect} failed with #{process_status.inspect}" unless process_status&.success?
 
       lines
     end
 
     def blob_has_changed?
       blobs_shasum = shasum(File.join(IntegrationSupport::Constants::BOSH_REPO_ROOT, 'blobs', 'nginx'))
-      sandbox_copy_shasum = shasum(File.join(WORKING_DIR, 'nginx'))
+      sandbox_copy_shasum = shasum(File.join(WORK_DIR, 'nginx'))
 
       blobs_shasum.sort != sandbox_copy_shasum.sort
     end
diff --git a/src/spec/integration_support/sandbox.rb b/src/spec/integration_support/sandbox.rb
index b14d2e6b8e..3b408352b0 100644
--- a/src/spec/integration_support/sandbox.rb
+++ b/src/spec/integration_support/sandbox.rb
@@ -67,17 +67,18 @@ class Sandbox
     attr_accessor :trusted_certs
 
     def self.integration_spec_base_dir
-      File.join(IntegrationSupport::Constants::BOSH_REPO_SRC_DIR, 'tmp', 'integration-specs')
+      File.join(IntegrationSupport::Constants::BOSH_REPO_SRC_TMP_DIR, 'integration-specs')
     end
     private_class_method :integration_spec_base_dir
 
     def self.uaa_service
-      @uaa_service ||= UaaService.new(uaa_root: File.join(integration_spec_base_dir, 'uaa_root'))
+      @uaa_service ||= UaaService.new(uaa_root: File.join(integration_spec_base_dir, "uaa_root-pid-#{Process.pid}"))
     end
     private_class_method :uaa_service
 
+
     def self.sandbox_pid_root
-      File.join(integration_spec_base_dir, "pid-#{Process.pid}-sandbox")
+      File.join(integration_spec_base_dir, "sandbox-pid-#{Process.pid}")
     end
 
     def self.sandbox_tmp_dir