diff options
author | blsaws <bryan.sullivan@att.com> | 2016-10-12 18:06:02 -0700 |
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committer | blsaws <bryan.sullivan@att.com> | 2016-10-12 18:06:02 -0700 |
commit | 84ec269ef1a3685b10525f7925264300c0367e25 (patch) | |
tree | 58d8feaf6306ea70402d018e2ced0ba73ba13fca /tests/blueprints/tosca-vnfd-hello-ves | |
parent | 39ddc27a31d3e12b51db88ddace64135399d3e35 (diff) |
Add baseline of agent code
JIRA: VES-1
Change-Id: I43f852d61a8c821bd5099c5a9b02d8a65caa19dd
Signed-off-by: blsaws <bryan.sullivan@att.com>
Diffstat (limited to 'tests/blueprints/tosca-vnfd-hello-ves')
-rw-r--r-- | tests/blueprints/tosca-vnfd-hello-ves/evel_demo.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/tests/blueprints/tosca-vnfd-hello-ves/evel_demo.c b/tests/blueprints/tosca-vnfd-hello-ves/evel_demo.c new file mode 100644 index 0000000..5286bca --- /dev/null +++ b/tests/blueprints/tosca-vnfd-hello-ves/evel_demo.c @@ -0,0 +1,430 @@ +/**************************************************************************//** + * @file + * Agent for the OPNFV VNF Event Stream (VES) vHello_VES test + * + * Copyright 2016 AT&T Intellectual Property, Inc + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + *****************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/signal.h> +#include <pthread.h> +#include <mcheck.h> + +#include "evel.h" +#include "evel_demo.h" + +/**************************************************************************//** + * Definition of long options to the program. + * + * See the documentation for getopt_long() for details of the structure's use. + *****************************************************************************/ +static const struct option long_options[] = { + {"help", no_argument, 0, 'h'}, + {"fqdn", required_argument, 0, 'f'}, + {"port", required_argument, 0, 'n'}, + {"username", required_argument, 0, 'u'}, + {"password", required_argument, 0, 'p'}, + {"verbose", no_argument, 0, 'v'}, + {0, 0, 0, 0} + }; + +/**************************************************************************//** + * Definition of short options to the program. + *****************************************************************************/ +static const char* short_options = "hf:n:p:t:sc:"; + +/**************************************************************************//** + * Basic user help text describing the usage of the application. + *****************************************************************************/ +static const char* usage_text = +"evel_demo [--help]\n" +" --fqdn <domain>\n" +" --port <port_number>\n" +" --username <username>\n" +" --password <password>\n" +" --vmid <VM ID>\n" +" [--verbose]\n" +"\n" +"Agent for the OPNFV VNF Event Stream (VES) vHello_VES test.\n" +"\n" +" -h Display this usage message.\n" +" --help\n" +"\n" +" -f The FQDN or IP address to the RESTful API.\n" +" --fqdn\n" +"\n" +" -n The port number the RESTful API.\n" +" --port\n" +"\n" +" -u Username for authentication to the RESTful API.\n" +" --username\n" +"\n" +" -p Password for authentication to the RESTful API.\n" +" --password\n" +"\n" +" -i UUID of the agent host VM.\n" +" --vmid\n" +"\n" +" -v Generate much chattier logs.\n" +" --verbose\n"; + +/**************************************************************************//** + * Global flags related the applicaton. + *****************************************************************************/ + +char *app_prevstate = "Stopped"; + +/**************************************************************************//** + * Global flag to initiate shutdown. + *****************************************************************************/ +static int glob_exit_now = 0; + +static void show_usage(FILE* fp) +{ + fputs(usage_text, fp); +} + +/**************************************************************************//** + * Report app state change fault. + * + * Reports the change in app state. + * + * param[in] char *change The type of change ("Started", "Stopped") + *****************************************************************************/ +void report_app_statechange(char *change) +{ + printf("report_app_statechange(%s)\n", change); + EVENT_FAULT * fault = NULL; + EVEL_ERR_CODES evel_rc = EVEL_SUCCESS; + + fault = evel_new_fault("App state change", + change, + EVEL_PRIORITY_HIGH, + EVEL_SEVERITY_MAJOR); + + if (fault != NULL) { + evel_fault_type_set(fault, "App state change"); + evel_fault_addl_info_add(fault, "change", change); + evel_rc = evel_post_event((EVENT_HEADER *)fault); + if (evel_rc != EVEL_SUCCESS) { + EVEL_ERROR("Post failed %d (%s)", evel_rc, evel_error_string()); + } + else { + EVEL_ERROR("New fault failed"); + } + } +} + +/**************************************************************************//** + * Check status of the nginx container. + * + * Checks and reports any change in app state. + * + * param[in] none + *****************************************************************************/ +void check_nginx_contaner_state() { + printf("Checking status of nginx container\n"); + FILE *fp; + int status; + const int JSON_MAX = 1000; + char json_line[JSON_MAX]; + + fp = popen("sudo docker inspect vHello", "r"); + if (fp == NULL) { + EVEL_ERROR("popen failed to execute command"); + } + + while (fgets(json_line, JSON_MAX, fp) != NULL) { + if (strstr(json_line, "Running") != NULL) { + if (strstr(json_line, "true") != NULL) { + if (strcmp(app_prevstate,"Stopped") == 0) { + printf("App state change detected: Started\n"); + report_app_statechange("Started"); + app_prevstate = "Running"; + } + } + else { + if (strcmp(app_prevstate, "Running") == 0) { + printf("App state change detected: Stopped\n"); + report_app_statechange("Stopped"); + app_prevstate = "Stopped"; + } + } + break; + } + } + status = pclose(fp); + if (status == -1) { + EVEL_ERROR("pclose returned an error"); + } +} + +/**************************************************************************//** + * Main function. + * + * Parses the command-line then ... + * + * @param[in] argc Argument count. + * @param[in] argv Argument vector - for usage see usage_text. + *****************************************************************************/ +int main(int argc, char ** argv) +{ + sigset_t sig_set; + pthread_t thread_id; + int option_index = 0; + int param = 0; + char * api_fqdn = NULL; + int api_port = 0; + char * api_username = NULL; + char * api_password = NULL; + char * api_vmid = NULL; + char * api_path = NULL; + char * api_topic = NULL; + int api_secure = 0; + int verbose_mode = 0; + EVEL_ERR_CODES evel_rc = EVEL_SUCCESS; + EVENT_HEADER * heartbeat = NULL; +// EVENT_FAULT * fault = NULL; +// EVENT_MEASUREMENT * measurement = NULL; +// EVENT_REPORT * report = NULL; + + /***************************************************************************/ + /* We're very interested in memory management problems so check behavior. */ + /***************************************************************************/ + mcheck(NULL); + + if (argc < 2) + { + show_usage(stderr); + exit(-1); + } + param = getopt_long(argc, argv, + short_options, + long_options, + &option_index); + while (param != -1) + { + switch (param) + { + case 'h': + show_usage(stdout); + exit(0); + break; + + case 'f': + api_fqdn = optarg; + break; + + case 'n': + api_port = atoi(optarg); + break; + + case 'u': + api_username = optarg; + break; + + case 'p': + api_password = optarg; + break; + + case 'i': + api_vmid = optarg; + break; + + case 'v': + verbose_mode = 1; + break; + + case '?': + /*********************************************************************/ + /* Unrecognized parameter - getopt_long already printed an error */ + /* message. */ + /*********************************************************************/ + break; + + default: + fprintf(stderr, "Code error: recognized but missing option (%d)!\n", + param); + exit(-1); + } + + /*************************************************************************/ + /* Extract next parameter. */ + /*************************************************************************/ + param = getopt_long(argc, argv, + short_options, + long_options, + &option_index); + } + + /***************************************************************************/ + /* All the command-line has parsed cleanly, so now check that the options */ + /* are meaningful. */ + /***************************************************************************/ + if (api_fqdn == NULL) + { + fprintf(stderr, "FQDN of the Vendor Event Listener API server must be " + "specified.\n"); + exit(1); + } + if (api_port <= 0 || api_port > 65535) + { + fprintf(stderr, "Port for the Vendor Event Listener API server must be " + "specified between 1 and 65535.\n"); + exit(1); + } + + /***************************************************************************/ + /* Set up default signal behaviour. Block all signals we trap explicitly */ + /* on the signal_watcher thread. */ + /***************************************************************************/ + sigemptyset(&sig_set); + sigaddset(&sig_set, SIGALRM); + sigaddset(&sig_set, SIGINT); + pthread_sigmask(SIG_BLOCK, &sig_set, NULL); + + /***************************************************************************/ + /* Start the signal watcher thread. */ + /***************************************************************************/ + if (pthread_create(&thread_id, NULL, signal_watcher, &sig_set) != 0) + { + fprintf(stderr, "Failed to start signal watcher thread."); + exit(1); + } + pthread_detach(thread_id); + + /***************************************************************************/ + /* Version info */ + /***************************************************************************/ + printf("%s built %s %s\n", argv[0], __DATE__, __TIME__); + + /***************************************************************************/ + /* Initialize the EVEL interface. */ + /***************************************************************************/ + if (evel_initialize(api_fqdn, + api_port, + api_path, + api_topic, + api_secure, + api_username, + api_password, + EVEL_SOURCE_VIRTUAL_MACHINE, + "vHello_VES agent", + verbose_mode)) + { + fprintf(stderr, "Failed to initialize the EVEL library!!!"); + exit(-1); + } + else + { + EVEL_INFO("Initialization completed"); + } + + /***************************************************************************/ + /* MAIN LOOP */ + /***************************************************************************/ + while (1) + { + EVEL_INFO("MAI: Starting main loop"); + printf("Starting main loop\n"); + + printf("Sending heartbeat\n"); + heartbeat = evel_new_heartbeat(); + if (heartbeat != NULL) + { + evel_rc = evel_post_event(heartbeat); + if (evel_rc != EVEL_SUCCESS) + { + EVEL_ERROR("Post failed %d (%s)", evel_rc, evel_error_string()); + } + } + else + { + EVEL_ERROR("New heartbeat failed"); + } + + check_nginx_contaner_state(); + + /*************************************************************************/ + /* MAIN RETRY LOOP. Loop every 10 secs. */ + /* TODO: Listener for throttling back scheduled reports. */ + /*************************************************************************/ + printf("End of main loop, sleeping for 10 seconds\n"); + fflush(stdout); + sleep(10); + } + /***************************************************************************/ + /* We are exiting, but allow the final set of events to be dispatched */ + /* properly first. */ + /***************************************************************************/ + sleep(1); + printf("All done - exiting!\n"); + return 0; +} + +/**************************************************************************//** + * Signal watcher. + * + * Signal catcher for incoming signal processing. Work out which signal has + * been received and process it accordingly. + * + * param[in] void_sig_set The signal mask to listen for. + *****************************************************************************/ +void *signal_watcher(void *void_sig_set) +{ + sigset_t *sig_set = (sigset_t *)void_sig_set; + int sig = 0; + int old_type = 0; + siginfo_t sig_info; + + /***************************************************************************/ + /* Set this thread to be cancellable immediately. */ + /***************************************************************************/ + pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old_type); + + while (!glob_exit_now) + { + /*************************************************************************/ + /* Wait for a signal to be received. */ + /*************************************************************************/ + sig = sigwaitinfo(sig_set, &sig_info); + switch (sig) + { + case SIGALRM: + /*********************************************************************/ + /* Failed to do something in the given amount of time. Exit. */ + /*********************************************************************/ + EVEL_ERROR( "Timeout alarm"); + fprintf(stderr,"Timeout alarm - quitting!\n"); + exit(2); + break; + + case SIGINT: + EVEL_INFO( "Interrupted - quitting"); + printf("\n\nInterrupted - quitting!\n"); + glob_exit_now = 1; + break; + } + } + + evel_terminate(); + exit(0); + return(NULL); +} |