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"daemon start": initial implementation

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This commit is contained in:
Ian Barwick
2019-01-24 18:42:08 +09:00
committed by Ian Barwick
parent cbfef17a1d
commit 32b81e7d49
11 changed files with 270 additions and 30 deletions
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87
repmgr-action-daemon.c
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@@ -384,6 +384,84 @@ fetch_node_records(PGconn *conn, NodeInfoList *node_list)
}
void
do_daemon_start(void)
{
PGconn *conn = NULL;
PQExpBufferData repmgrd_command;
PQExpBufferData output_buf;
bool success;
/*
* if local connection available, check if repmgr.so is installed, and
* whether repmgrd is running
*/
log_verbose(LOG_INFO, _("connecting to local node"));
if (strlen(config_file_options.conninfo))
conn = establish_db_connection(config_file_options.conninfo, false);
else
conn = establish_db_connection_by_params(&source_conninfo, false);
if (PQstatus(conn) != CONNECTION_OK)
{
log_warning(_("unable to connect to local node"));
}
else
{
check_shared_library(conn);
if (is_repmgrd_running(conn) == true)
{
log_error(_("repmgrd appears to be running already"));
PQfinish(conn);
exit(ERR_REPMGRD_SERVICE);
}
}
initPQExpBuffer(&repmgrd_command);
if (config_file_options.repmgrd_service_start_command[0] != '\0')
{
appendPQExpBufferStr(&repmgrd_command,
config_file_options.repmgrd_service_start_command);
}
else
{
make_repmgrd_path(&repmgrd_command);
}
if (runtime_options.dry_run == true)
{
log_info(_("prerequisites for starting repmgrd met"));
log_detail("%s", repmgrd_command.data);
exit(SUCCESS);
}
log_debug("repmgrd start command: '%s'", repmgrd_command.data);
initPQExpBuffer(&output_buf);
success = local_command(repmgrd_command.data, &output_buf);
termPQExpBuffer(&repmgrd_command);
if (success == false)
{
log_error(_("unable to start repmgrd"));
if (output_buf.data[0] != '\0')
log_detail("%s", output_buf.data);
termPQExpBuffer(&output_buf);
exit(ERR_REPMGRD_SERVICE);
}
termPQExpBuffer(&output_buf);
}
void do_daemon_stop(void)
{
}
void do_daemon_help(void)
{
print_help_header();
@@ -392,6 +470,8 @@ void do_daemon_help(void)
printf(_(" %s [OPTIONS] daemon status\n"), progname());
printf(_(" %s [OPTIONS] daemon pause\n"), progname());
printf(_(" %s [OPTIONS] daemon unpause\n"), progname());
printf(_(" %s [OPTIONS] daemon start\n"), progname());
printf(_(" %s [OPTIONS] daemon stop\n"), progname());
puts("");
printf(_("DAEMON STATUS\n"));
@@ -416,6 +496,13 @@ void do_daemon_help(void)
printf(_(" --dry-run check if nodes are reachable but don't unpause repmgrd\n"));
puts("");
printf(_("DAEMON START\n"));
puts("");
puts("XXX");
printf(_("DAEMON STOP\n"));
puts("");
puts("XXX");
puts("");
}