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From jl...@apache.org
Subject hadoop git commit: YARN-7246. Fix the default docker binary path. Contributed by Shane Kumpf
Date Fri, 13 Oct 2017 20:36:01 GMT
Repository: hadoop
Updated Branches:
  refs/heads/branch-2.8 ce76ed675 -> b41c5e41b


YARN-7246. Fix the default docker binary path. Contributed by Shane Kumpf


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/b41c5e41
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/b41c5e41
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/b41c5e41

Branch: refs/heads/branch-2.8
Commit: b41c5e41bc46820912e8789837cca132db65b909
Parents: ce76ed6
Author: Jason Lowe <jlowe@apache.org>
Authored: Fri Oct 13 15:32:35 2017 -0500
Committer: Jason Lowe <jlowe@apache.org>
Committed: Fri Oct 13 15:32:35 2017 -0500

----------------------------------------------------------------------
 .../impl/container-executor.c                   | 17 +++--
 .../impl/container-executor.h                   |  4 ++
 .../test/test-container-executor.c              | 69 +++++++++++++++-----
 3 files changed, 67 insertions(+), 23 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/b41c5e41/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
index b83b768..3b76964 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c
@@ -75,6 +75,7 @@ static const char* TC_READ_STATS_OPTS [] = { "-s",  "-b", NULL};
 
 static const int DEFAULT_DOCKER_SUPPORT_ENABLED = 0;
 static const int DEFAULT_TC_SUPPORT_ENABLED = 0;
+static const char* DEFAULT_DOCKER_BINARY_PATH = "/usr/bin/docker";
 
 //struct to store the user details
 struct passwd *user_detail = NULL;
@@ -1305,9 +1306,17 @@ char* parse_docker_command_file(const char* command_file) {
   return ret;
 }
 
+char *get_docker_binary() {
+  char *docker_binary = get_value(DOCKER_BINARY_KEY, &executor_cfg);
+  if (docker_binary == NULL) {
+    docker_binary = strdup(DEFAULT_DOCKER_BINARY_PATH);
+  }
+  return docker_binary;
+}
+
 int run_docker(const char *command_file) {
   char* docker_command = parse_docker_command_file(command_file);
-  char* docker_binary = get_value(DOCKER_BINARY_KEY, &executor_cfg);
+  char* docker_binary = get_docker_binary();
   size_t command_size = MIN(sysconf(_SC_ARG_MAX), 128*1024);
 
   char* docker_command_with_binary = calloc(sizeof(char), command_size);
@@ -1476,10 +1485,7 @@ int launch_docker_container_as_user(const char * user, const char *app_id,
   docker_rm_command = calloc(sizeof(char), command_size);
 
   char *docker_command = parse_docker_command_file(command_file);
-  char *docker_binary = get_value(DOCKER_BINARY_KEY, &executor_cfg);
-  if (docker_binary == NULL) {
-    docker_binary = "docker";
-  }
+  char *docker_binary = get_docker_binary();
 
   fprintf(LOGFILE, "Creating script paths...\n");
   exit_code = create_script_paths(
@@ -1653,6 +1659,7 @@ cleanup:
   free(exit_code_file);
   free(script_file_dest);
   free(cred_file_dest);
+  free(docker_binary);
   free(docker_command_with_binary);
   free(docker_wait_command);
   free(docker_logs_command);

http://git-wip-us.apache.org/repos/asf/hadoop/blob/b41c5e41/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.h
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.h
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.h
index 3eaf42e..82ce94b 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.h
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.h
@@ -292,6 +292,10 @@ int traffic_control_read_state(char *command_file);
  */
 int traffic_control_read_stats(char *command_file);
 
+/**
+ * Get the docker binary path.
+ */
+char *get_docker_binary();
 
 /**
  * Run a docker command passing the command file as an argument

http://git-wip-us.apache.org/repos/asf/hadoop/blob/b41c5e41/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
index a6e0236..438ac94 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/test/test-container-executor.c
@@ -52,6 +52,7 @@ static char* username = NULL;
 static char* yarn_username = NULL;
 static char** local_dirs = NULL;
 static char** log_dirs = NULL;
+static const char* DEFAULT_DOCKER_BINARY_PATH = "/usr/bin/docker";
 
 /**
  * Run the command using the effective user id.
@@ -102,7 +103,7 @@ void run(const char *cmd) {
   }
 }
 
-int write_config_file(char *file_name, int banned) {
+int write_config_file(char *file_name, int banned, char *docker_binary_path) {
   FILE *file;
   file = fopen(file_name, "w");
   if (file == NULL) {
@@ -115,6 +116,11 @@ int write_config_file(char *file_name, int banned) {
   } else {
     fprintf(file, "min.user.id=0\n");
   }
+  if (docker_binary_path == NULL) {
+    fprintf(file, "#docker.binary=\n");
+  } else {
+    fprintf(file, "docker.binary=%s\n", docker_binary_path);
+  }
   fprintf(file, "allowed.system.users=allowedUser,daemon\n");
   fclose(file);
   return 0;
@@ -224,7 +230,12 @@ void test_get_app_log_dir() {
   free(logdir);
 }
 
-void test_check_user(int expectedFailure) {
+void test_check_user(int expectedFailure, int enable_banned_user_conf) {
+  if (write_config_file(TEST_ROOT "/test.cfg", enable_banned_user_conf, NULL) != 0) {
+    exit(1);
+  }
+  read_executor_config(TEST_ROOT "/test.cfg");
+
   printf("\nTesting test_check_user\n");
   struct passwd *user = check_user(username);
   if (user == NULL && !expectedFailure) {
@@ -412,7 +423,7 @@ void test_delete_user() {
 
   char buffer[100000];
   sprintf(buffer, "%s/test.cfg", app_dir);
-  if (write_config_file(buffer, 1) != 0) {
+  if (write_config_file(buffer, 1, NULL) != 0) {
     exit(1);
   }
 
@@ -923,6 +934,35 @@ void test_sanitize_docker_command() {
   }
 }
 
+void test_get_docker_binary() {
+  if (write_config_file(TEST_ROOT "/docker.cfg", 0, NULL) != 0) {
+    exit(1);
+  }
+  read_executor_config(TEST_ROOT "/docker.cfg");
+
+  char* docker_binary_null = get_docker_binary();
+  printf("Docker binary path when not set: %s\n", docker_binary_null);
+  if(strcmp(DEFAULT_DOCKER_BINARY_PATH, docker_binary_null) != 0) {
+    printf("FAIL: expected output %s does not match actual output '%s'\n", DEFAULT_DOCKER_BINARY_PATH,
docker_binary_null);
+    exit(1);
+  }
+  free(docker_binary_null);
+
+  char* docker_binary_user = strdup("/bin/docker");
+  if (write_config_file(TEST_ROOT "/docker.cfg", 0, docker_binary_user) != 0) {
+    exit(1);
+  }
+  read_executor_config(TEST_ROOT "/docker.cfg");
+  char* docker_binary_set = get_docker_binary();
+  printf("Docker binary path when set: %s\n", docker_binary_set);
+  if(strcmp(docker_binary_user, docker_binary_set) != 0) {
+    printf("FAIL: expected output %s does not match actual output '%s'\n", docker_binary_user,
docker_binary_set);
+    exit(1);
+  }
+  free(docker_binary_set);
+  free(docker_binary_user);
+}
+
 // This test is expected to be executed either by a regular
 // user or by root. If executed by a regular user it doesn't
 // test all the functions that would depend on changing the
@@ -951,14 +991,8 @@ int main(int argc, char **argv) {
     exit(1);
   }
 
-  if (write_config_file(TEST_ROOT "/test.cfg", 1) != 0) {
-    exit(1);
-  }
-
   printf("\nOur executable is %s\n",get_executable(argv[0]));
 
-  read_executor_config(TEST_ROOT "/test.cfg");
-
   local_dirs = extract_values(strdup(NM_LOCAL_DIRS));
   log_dirs = extract_values(strdup(NM_LOG_DIRS));
 
@@ -1017,7 +1051,10 @@ int main(int argc, char **argv) {
   printf("\nTesting sanitize docker commands()\n");
   test_sanitize_docker_command();
 
-  test_check_user(0);
+  printf("\nTesting get docker binary path()\n");
+  test_get_docker_binary();
+
+  test_check_user(0, 1);
 
 #ifdef __APPLE__
    printf("OS X: disabling CrashReporter\n");
@@ -1069,23 +1106,19 @@ int main(int argc, char **argv) {
   free_executor_configurations();
 
   printf("\nTrying banned default user()\n");
-  if (write_config_file(TEST_ROOT "/test.cfg", 0) != 0) {
-    exit(1);
-  }
 
-  read_executor_config(TEST_ROOT "/test.cfg");
 #ifdef __APPLE__
   username = "_uucp";
-  test_check_user(1);
+  test_check_user(1, 0);
 
   username = "_networkd";
-  test_check_user(1);
+  test_check_user(1, 0);
 #else
   username = "bin";
-  test_check_user(1);
+  test_check_user(1, 0);
 
   username = "sys";
-  test_check_user(1);
+  test_check_user(1, 0);
 #endif
 
   run("rm -fr " TEST_ROOT);


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