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Consolidate generation of various server control commands

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This is needed for better switchover control, so we can instruct
the remote repmgr to issue the appropriate server command rather
than trying to work out what it should be from the local node.
This commit is contained in:
Ian Barwick
2017-08-02 12:01:20 +09:00
parent 5b7b276ada
commit aa528dfdfb
8 changed files with 397 additions and 51 deletions
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101
repmgr-action-node.c
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@@ -16,6 +16,10 @@
static bool copy_file(const char *src_file, const char *dest_file);
static void format_archive_dir(char *archive_dir);
static t_server_action parse_server_action(const char *action);
static void _do_node_service_check(void);
static void _do_node_service_list(void);
void
do_node_status(void)
@@ -282,6 +286,103 @@ do_node_check(void)
}
// --action=...
// --check
// --list -> list what would be executed for each action, filter to --action
void
do_node_service(void)
{
t_server_action action = parse_server_action(runtime_options.action);
if (action == ACTION_UNKNOWN)
{
log_error(_("unknown value \"%s\" provided for parameter --action"),
runtime_options.action);
log_hint(_("valid values are \"start\", \"stop\" and \"restart\""));
exit(ERR_BAD_CONFIG);
}
if (runtime_options.check == true)
{
if (action != ACTION_NONE)
log_warning(_("--action not required for --check"));
return _do_node_service_check();
}
if (runtime_options.list == true)
{
return _do_node_service_list();
}
// perform action...
// --dry-run: print only
}
static void
_do_node_service_check(void)
{
}
static void
_do_node_service_list(void)
{
char command[MAXLEN] = "";
char *data_dir = runtime_options.data_dir;
puts(_("Following commands would be executed for each action:"));
puts("");
get_server_action(ACTION_START, command, data_dir);
printf(" start: \"%s\"\n", command);
get_server_action(ACTION_STOP, command, data_dir);
printf(" stop: \"%s\"\n", command);
get_server_action(ACTION_RESTART, command, data_dir);
printf(" restart: \"%s\"\n", command);
get_server_action(ACTION_RELOAD, command, data_dir);
printf(" reload: \"%s\"\n", command);
get_server_action(ACTION_PROMOTE, command, data_dir);
printf(" promote: \"%s\"\n", command);
puts("");
}
static t_server_action
parse_server_action(const char *action_name)
{
if (action_name[0] == '\0')
return ACTION_NONE;
if (strcasecmp(action_name, "start") == 0)
return ACTION_START;
if (strcasecmp(action_name, "stop") == 0)
return ACTION_STOP;
if (strcasecmp(action_name, "restart") == 0)
return ACTION_RESTART;
if (strcasecmp(action_name, "reload") == 0)
return ACTION_RELOAD;
if (strcasecmp(action_name, "promote") == 0)
return ACTION_PROMOTE;
return ACTION_UNKNOWN;
}
/*
* Intended mainly for "internal" use by `node switchover`, which
* calls this on the target server to archive any configuration files