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open-vm-tools.9196
false-negative-cloud-init.patch
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File false-negative-cloud-init.patch of Package open-vm-tools.9196
commit 0a2d2f8baf9e4dccb2fd15c833efef5e704683ea Author: Oliver Kurth <okurth@vmware.com> Date: Fri Jul 13 15:20:38 2018 -0700 Workaround for false negative result when detecting cloud-init existance "cloud-init -v" cmd is used to detect if cloud-init is properly configured and it works on most linux distros. However in some linux distro like Amazon Linux 2, "cloud-init -v" will print result to stderr instead of stdout and it makes "forkExecAndWaitCommand" give false negative result. 1. added a new bool switch in "ForkExecAndWaitCommand" to choose if we should ignore the stderr output when the return code is 0 2. removed unnecessary reference for "ForkExecAndWaitCommand" in linuxDeploymentUtilities.c 3. trivial change for some formatting diff --git a/open-vm-tools/libDeployPkg/linuxDeployment.c b/open-vm-tools/libDeployPkg/linuxDeployment.c index 996f184c..34c8b956 100644 --- a/open-vm-tools/libDeployPkg/linuxDeployment.c +++ b/open-vm-tools/libDeployPkg/linuxDeployment.c @@ -139,7 +139,7 @@ static bool CopyFileToDirectory(const char* srcPath, const char* destPath, const char* fileName); static DeployPkgStatus Deploy(const char* pkgName); static char** GetFormattedCommandLine(const char* command); -int ForkExecAndWaitCommand(const char* command); +int ForkExecAndWaitCommand(const char* command, bool ignoreStdErr); static void SetDeployError(const char* format, ...); static const char* GetDeployError(void); static void NoLogging(int level, const char* fmtstr, ...); @@ -920,7 +920,7 @@ CloudInitSetup(const char *tmpDirPath) "/bin/mkdir -p %s", cloudInitTmpDirPath); command[sizeof(command) - 1] = '\0'; - forkExecResult = ForkExecAndWaitCommand(command); + forkExecResult = ForkExecAndWaitCommand(command, false); if (forkExecResult != 0) { SetDeployError("Error creating %s dir: %s", cloudInitTmpDirPath, @@ -937,7 +937,7 @@ CloudInitSetup(const char *tmpDirPath) "/usr/bin/test -f %s/nics.txt", tmpDirPath); command[sizeof(command) - 1] = '\0'; - forkExecResult = ForkExecAndWaitCommand(command); + forkExecResult = ForkExecAndWaitCommand(command, false); /* * /usr/bin/test -f returns 0 if the file exists @@ -946,7 +946,7 @@ CloudInitSetup(const char *tmpDirPath) */ if (forkExecResult == 0) { sLog(log_info, "nics.txt file exists. Copying.."); - if(!CopyFileToDirectory(tmpDirPath, cloudInitTmpDirPath, "nics.txt")) { + if (!CopyFileToDirectory(tmpDirPath, cloudInitTmpDirPath, "nics.txt")) { goto done; } } @@ -973,7 +973,7 @@ CloudInitSetup(const char *tmpDirPath) } sLog(log_info, "Copying main configuration file cust.cfg"); - if(!CopyFileToDirectory(tmpDirPath, cloudInitTmpDirPath, "cust.cfg")) { + if (!CopyFileToDirectory(tmpDirPath, cloudInitTmpDirPath, "cust.cfg")) { goto done; } @@ -992,7 +992,7 @@ done: "/bin/rm -rf %s", cloudInitTmpDirPath); command[sizeof(command) - 1] = '\0'; - ForkExecAndWaitCommand(command); + ForkExecAndWaitCommand(command, false); } sLog(log_error, "Setting generic error status in vmx. \n"); SetCustomizationStatusInVmx(TOOLSDEPLOYPKG_RUNNING, @@ -1016,7 +1016,7 @@ CopyFileToDirectory(const char* srcPath, const char* destPath, snprintf(command, sizeof(command), "/bin/cp %s/%s %s/%s.tmp", srcPath, fileName, destPath, fileName); command[sizeof(command) - 1] = '\0'; - forkExecResult = ForkExecAndWaitCommand(command); + forkExecResult = ForkExecAndWaitCommand(command, false); if (forkExecResult != 0) { SetDeployError("Error while copying file %s: %s", fileName, strerror(errno)); @@ -1026,7 +1026,7 @@ CopyFileToDirectory(const char* srcPath, const char* destPath, fileName, destPath, fileName); command[sizeof(command) - 1] = '\0'; - forkExecResult = ForkExecAndWaitCommand(command); + forkExecResult = ForkExecAndWaitCommand(command, false); if (forkExecResult != 0) { SetDeployError("Error while renaming temp file %s: %s", fileName, strerror(errno)); @@ -1090,7 +1090,7 @@ UseCloudInitWorkflow(const char* dirPath) sLog(log_info, "cust.cfg is found in '%s' directory.", dirPath); } - forkExecResult = ForkExecAndWaitCommand(cloudInitCommand); + forkExecResult = ForkExecAndWaitCommand(cloudInitCommand, true); if (forkExecResult != 0) { sLog(log_info, "cloud-init is not installed"); free(cfgFullPath); @@ -1194,7 +1194,7 @@ Deploy(const char* packageName) deployPkgStatus = CloudInitSetup(tmpDirPath); } else { sLog(log_info, "Executing traditional GOSC workflow"); - deploymentResult = ForkExecAndWaitCommand(command); + deploymentResult = ForkExecAndWaitCommand(command, false); free(command); if (deploymentResult != CUST_SUCCESS) { @@ -1260,7 +1260,7 @@ Deploy(const char* packageName) strcat(cleanupCommand, tmpDirPath); sLog(log_info, "Launching cleanup. \n"); - if (ForkExecAndWaitCommand(cleanupCommand) != 0) { + if (ForkExecAndWaitCommand(cleanupCommand, false) != 0) { sLog(log_warning, "Error while clean up tmp directory %s: (%s)", tmpDirPath, strerror (errno)); } @@ -1289,7 +1289,7 @@ Deploy(const char* packageName) int rebootComandResult = 0; do { sLog(log_info, "Rebooting\n"); - rebootComandResult = ForkExecAndWaitCommand("/sbin/telinit 6"); + rebootComandResult = ForkExecAndWaitCommand("/sbin/telinit 6", false); sleep(1); } while (rebootComandResult == 0); sLog(log_error, "telinit returned error %d\n", rebootComandResult); @@ -1499,12 +1499,13 @@ GetFormattedCommandLine(const char* command) * Fork off the command and wait for it to finish. Classical Linux/Unix * fork-and-exec. * - * @param [IN] command Command to execute + * @param [IN] command Command to execute + * @param [IN] ignoreStdErr If we ignore stderr when cmd's return code is 0 * @return Return code from the process (or -1) * **/ int -ForkExecAndWaitCommand(const char* command) +ForkExecAndWaitCommand(const char* command, bool ignoreStdErr) { ProcessHandle hp; int retval; @@ -1522,14 +1523,30 @@ ForkExecAndWaitCommand(const char* command) Process_RunToComplete(hp, 100); sLog(log_info, "Customization command output: %s\n", Process_GetStdout(hp)); - - if(Process_GetExitCode(hp) == 0 && strlen(Process_GetStderr(hp)) > 0) { - // Assume command failed if it wrote to stderr, even if exitCode is 0 - sLog(log_error, "Customization command failed: %s\n", Process_GetStderr(hp)); - retval = -1; + retval = Process_GetExitCode(hp); + + if (retval == 0) { + if (strlen(Process_GetStderr(hp)) > 0) { + if (!ignoreStdErr) { + // Assume command failed if it wrote to stderr, even if exitCode is 0 + sLog(log_error, + "Customization command failed with stderr: %s\n", + Process_GetStderr(hp)); + retval = -1; + } else { + // If we choose to ignore stderr, we do not return -1 when return + // code is 0. e.g, PR2148977, "cloud-init -v" will return 0 + // even there is output in stderr + sLog(log_info, "Ignoring stderr output: %s\n", Process_GetStderr(hp)); + } + } } else { - retval = Process_GetExitCode(hp); + sLog(log_error, + "Customization command failed with exitcode: %d, stderr: %s\n", + retval, + Process_GetStderr(hp)); } + Process_Destroy(hp); return retval; } diff --git a/open-vm-tools/libDeployPkg/linuxDeploymentUtilities.c b/open-vm-tools/libDeployPkg/linuxDeploymentUtilities.c index 83f942da..93e1b0aa 100644 --- a/open-vm-tools/libDeployPkg/linuxDeploymentUtilities.c +++ b/open-vm-tools/libDeployPkg/linuxDeploymentUtilities.c @@ -1,5 +1,5 @@ /********************************************************* - * Copyright (C) 2016-2017 VMware, Inc. All rights reserved. + * Copyright (C) 2016-2018 VMware, Inc. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published @@ -24,7 +24,6 @@ #include <regex.h> #include "linuxDeploymentUtilities.h" -extern int ForkExecAndWaitCommand(const char* command); extern LogFunction sLog; /**
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