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MINOR: cli: change a server health check port through the stats socket

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Introduction of a new CLI command "set server <srv> check-port <port>' to
allow admins to change a server's health check port at run time.

This changes the equivalent of the configuration server parameter
called 'port'.
This commit is contained in:
Baptiste Assmann 2016-08-31 23:26:29 +02:00 committed by Willy Tarreau
parent e3f5031b51
commit 5094656a67
2 changed files with 24 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/management.txt
View File

@ -1595,6 +1595,9 @@ set server <backend>/<server> health [ up | stopping | down ]
switch a server's state regardless of some slow health checks for example.
Note that the change is propagated to tracking servers if any.
set server <backend>/<server> check-port <port>
Change the port used for health checking to <port>
set server <backend>/<server> state [ ready | drain | maint ]
Force a server's administrative state to a new state. This can be useful to
disable load balancing and/or any traffic to a server. Setting the state to

22
src/dumpstats.c
View File

@ -1779,6 +1779,26 @@ static int stats_sock_parse_request(struct stream_interface *si, char *line)
appctx->st0 = STAT_CLI_PRINT;
}
}
else if (strcmp(args[3], "check-port") == 0) {
int i = 0;
if (strl2irc(args[4], strlen(args[4]), &i) != 0) {
appctx->ctx.cli.msg = "'set server <srv> check-port' expects an integer as argument.\n";
appctx->st0 = STAT_CLI_PRINT;
}
if ((i < 0) || (i > 65535)) {
appctx->ctx.cli.msg = "provided port is not valid.\n";
appctx->st0 = STAT_CLI_PRINT;
}
/* prevent the update of port to 0 if MAPPORTS are in use */
if ((sv->flags & SRV_F_MAPPORTS) && (i == 0)) {
appctx->ctx.cli.msg = "can't unset 'port' since MAPPORTS is in use.\n";
appctx->st0 = STAT_CLI_PRINT;
return 1;
}
sv->check.port = i;
appctx->ctx.cli.msg = "health check port updated.\n";
appctx->st0 = STAT_CLI_PRINT;
}
else if (strcmp(args[3], "addr") == 0) {
warning = server_parse_addr_change_request(sv, args[4], "stats command");
if (warning) {
@ -1787,7 +1807,7 @@ static int stats_sock_parse_request(struct stream_interface *si, char *line)
}
}
else {
appctx->ctx.cli.msg = "'set server <srv>' only supports 'agent', 'health', 'state', 'weight' and 'addr'.\n";
appctx->ctx.cli.msg = "'set server <srv>' only supports 'agent', 'health', 'state', 'weight', 'addr' and 'check-port'.\n";
appctx->st0 = STAT_CLI_PRINT;
}
return 1;