int DockerAPI::inspect( const std::string & containerID, ClassAd * dockerAd, CondorError & /* err */ ) { if( dockerAd == NULL ) { dprintf( D_ALWAYS | D_FAILURE, "dockerAd is NULL.\n" ); return -2; } ArgList inspectArgs; if ( ! add_docker_arg(inspectArgs)) return -1; inspectArgs.AppendArg( "inspect" ); inspectArgs.AppendArg( "--format" ); StringList formatElements( "ContainerId=\"{{.Id}}\" " "Pid={{.State.Pid}} " "Name=\"{{.Name}}\" " "Running={{.State.Running}} " "ExitCode={{.State.ExitCode}} " "StartedAt=\"{{.State.StartedAt}}\" " "FinishedAt=\"{{.State.FinishedAt}}\" " "DockerError=\"{{.State.Error}}\" " "OOMKilled=\"{{.State.OOMKilled}}\" " ); char * formatArg = formatElements.print_to_delimed_string( "\n" ); inspectArgs.AppendArg( formatArg ); free( formatArg ); inspectArgs.AppendArg( containerID ); MyString displayString; inspectArgs.GetArgsStringForLogging( & displayString ); dprintf( D_FULLDEBUG, "Attempting to run: %s\n", displayString.c_str() ); #if 1 MyPopenTimer pgm; if (pgm.start_program(inspectArgs, true, NULL, false) < 0) { dprintf( D_ALWAYS | D_FAILURE, "Failed to run '%s'.\n", displayString.c_str() ); return -6; } MyStringSource * src = NULL; if (pgm.wait_and_close(default_timeout)) { src = &pgm.output(); } int expected_rows = formatElements.number(); dprintf( D_FULLDEBUG, "exit_status=%d, error=%d, %d bytes. expecting %d lines\n", pgm.exit_status(), pgm.error_code(), pgm.output_size(), expected_rows ); // If the output isn't exactly formatElements.number() lines long, // something has gone wrong and we'll at least be able to print out // the error message(s). std::vector<std::string> correctOutput(expected_rows); if (src) { MyString line; int i=0; while (line.readLine(*src,false)) { line.chomp(); //dprintf( D_FULLDEBUG, "\t[%2d] %s\n", i, line.c_str() ); if (i >= expected_rows) { if (line.empty()) continue; correctOutput.push_back(line.c_str()); } else { correctOutput[i] = line.c_str(); } std::string::iterator first = std::find(correctOutput[i].begin(), correctOutput[i].end(), '\"'); if (first != correctOutput[i].end()) { std::replace(++first, --correctOutput[i].end(), '\"','\''); } //dprintf( D_FULLDEBUG, "\tfix: %s\n", correctOutput[i].c_str() ); ++i; } } #else FILE * dockerResults = my_popen( inspectArgs, "r", 1 , 0, false); if( dockerResults == NULL ) { dprintf( D_ALWAYS | D_FAILURE, "Unable to run '%s'.\n", displayString.c_str() ); return -6; } // If the output isn't exactly formatElements.number() lines long, // something has gone wrong and we'll at least be able to print out // the error message(s). char buffer[1024]; std::vector<std::string> correctOutput(formatElements.number()); for( int i = 0; i < formatElements.number(); ++i ) { if( fgets( buffer, 1024, dockerResults ) != NULL ) { correctOutput[i] = buffer; std::string::iterator first = std::find(correctOutput[i].begin(), correctOutput[i].end(), '\"'); if (first != correctOutput[i].end()) { std::replace(++first, -- --correctOutput[i].end(), '\"','\''); } } } my_pclose( dockerResults ); #endif int attrCount = 0; for( int i = 0; i < formatElements.number(); ++i ) { if( correctOutput[i].empty() || dockerAd->Insert( correctOutput[i].c_str() ) == FALSE ) { break; } ++attrCount; } if( attrCount != formatElements.number() ) { dprintf( D_ALWAYS | D_FAILURE, "Failed to create classad from Docker output (%d). Printing up to the first %d (nonblank) lines.\n", attrCount, formatElements.number() ); for( int i = 0; i < formatElements.number() && ! correctOutput[i].empty(); ++i ) { dprintf( D_ALWAYS | D_FAILURE, "%s", correctOutput[i].c_str() ); } return -4; } dprintf( D_FULLDEBUG, "docker inspect printed:\n" ); for( int i = 0; i < formatElements.number() && ! correctOutput[i].empty(); ++i ) { dprintf( D_FULLDEBUG, "\t%s\n", correctOutput[i].c_str() ); } return 0; }
int DockerAPI::inspect( const std::string & containerID, ClassAd * dockerAd, CondorError & /* err */ ) { if( dockerAd == NULL ) { dprintf( D_ALWAYS | D_FAILURE, "dockerAd is NULL.\n" ); return -2; } ArgList inspectArgs; if ( ! add_docker_arg(inspectArgs)) return -1; inspectArgs.AppendArg( "inspect" ); inspectArgs.AppendArg( "--format" ); StringList formatElements( "ContainerId=\"{{.Id}}\" " "Pid={{.State.Pid}} " "Name=\"{{.Name}}\" " "Running={{.State.Running}} " "ExitCode={{.State.ExitCode}} " "StartedAt=\"{{.State.StartedAt}}\" " "FinishedAt=\"{{.State.FinishedAt}}\" " "DockerError=\"{{.State.Error}}\" " "OOMKilled=\"{{.State.OOMKilled}}\" " ); char * formatArg = formatElements.print_to_delimed_string( "\n" ); inspectArgs.AppendArg( formatArg ); free( formatArg ); inspectArgs.AppendArg( containerID ); MyString displayString; inspectArgs.GetArgsStringForLogging( & displayString ); dprintf( D_FULLDEBUG, "Attempting to run: %s\n", displayString.c_str() ); FILE * dockerResults = my_popen( inspectArgs, "r", 1 , 0, false); if( dockerResults == NULL ) { dprintf( D_ALWAYS | D_FAILURE, "Unable to run '%s'.\n", displayString.c_str() ); return -6; } // If the output isn't exactly formatElements.number() lines long, // something has gone wrong and we'll at least be able to print out // the error message(s). char buffer[1024]; std::vector<std::string> correctOutput(formatElements.number()); for( int i = 0; i < formatElements.number(); ++i ) { if( fgets( buffer, 1024, dockerResults ) != NULL ) { correctOutput[i] = buffer; std::string::iterator first = std::find(correctOutput[i].begin(), correctOutput[i].end(), '\"'); if (first != correctOutput[i].end()) { std::replace(++first, -- --correctOutput[i].end(), '\"','\''); } } } my_pclose( dockerResults ); int attrCount = 0; for( int i = 0; i < formatElements.number(); ++i ) { if( correctOutput[i].empty() || dockerAd->Insert( correctOutput[i].c_str() ) == FALSE ) { break; } ++attrCount; } if( attrCount != formatElements.number() ) { dprintf( D_ALWAYS | D_FAILURE, "Failed to create classad from Docker output (%d). Printing up to the first %d (nonblank) lines.\n", attrCount, formatElements.number() ); for( int i = 0; i < formatElements.number() && ! correctOutput[i].empty(); ++i ) { dprintf( D_ALWAYS | D_FAILURE, "%s", correctOutput[i].c_str() ); } return -4; } dprintf( D_FULLDEBUG, "docker inspect printed:\n" ); for( int i = 0; i < formatElements.number() && ! correctOutput[i].empty(); ++i ) { dprintf( D_FULLDEBUG, "\t%s", correctOutput[i].c_str() ); } return 0; }