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MINOR: mworker/cli: add flags in the prompt

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The master CLI prompt is now able to show flags in its prompt depending
on the mode used: experimental (x), expert (e), mcli-debug (d).
This commit is contained in:
William Lallemand 2022-02-02 14:13:54 +01:00
parent 2a17191e91
commit dae12c7553
2 changed files with 37 additions and 5 deletions
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19
doc/management.txt
View File

@ -3675,14 +3675,14 @@ Example:
expert-mode [on|off]
This command activates the "expert-mode" for every worker accessed from the
master CLI. Combined with "mcli-debug-mode" it also activates the command on
the master.
the master. Display the flag "e" in the master CLI prompt.
See also "expert-mode" in Section 9.3 and "mcli-debug-mode" in 9.4.1.
experimental-mode [on|off]
This command activates the "experimental-mode" for every worker accessed from
the master CLI. Combined with "mcli-debug-mode" it also activates the command on
the master.
the master. Display the flag "x" in the master CLI prompt.
See also "experimental-mode" in Section 9.3 and "mcli-debug-mode" in 9.4.1.
@ -3691,7 +3691,7 @@ mcli-debug-mode [on|off]
keywords that were meant for a worker CLI on the master CLI, allowing to debug
the master process. Once activated, you list the new available keywords with
"help". Combined with "experimental-mode" or "expert-mode" it enables even
more keywords.
more keywords. Display the flag "d" in the master CLI prompt.
prompt
When the prompt is enabled (via the "prompt" command), the context the CLI is
@ -3701,6 +3701,19 @@ prompt
that it becomes visible that the process is still running on the previous
configuration and that the new configuration is not operational.
The prompt of the master CLI is able to display several flags which are the
enable modes. "d" for mcli-debug-mode, "e" for expert-mode, "x" for
experimental-mode.
Example:
$ socat /var/run/haproxy-master.sock -
prompt
master> expert-mode on
master(e)> experimental-mode on
master(xe)> mcli-debug-mode on
master(xed)> @1
95191(xed)>
reload
You can also reload the HAProxy master process with the "reload" command which
does the same as a `kill -USR2` on the master process, provided that the user

23
src/cli.c
View File

@ -2127,10 +2127,29 @@ void pcli_write_prompt(struct stream *s)
chunk_appendf(msg, "+ ");
} else {
if (s->pcli_next_pid == 0)
chunk_appendf(msg, "master%s> ",
chunk_appendf(msg, "master%s",
(proc_self->failedreloads > 0) ? "[ReloadFailed]" : "");
else
chunk_appendf(msg, "%d> ", s->pcli_next_pid);
chunk_appendf(msg, "%d", s->pcli_next_pid);
if (s->pcli_flags & (ACCESS_EXPERIMENTAL|ACCESS_EXPERT|ACCESS_MCLI_DEBUG)) {
chunk_appendf(msg, "(");
if (s->pcli_flags & ACCESS_EXPERIMENTAL)
chunk_appendf(msg, "x");
if (s->pcli_flags & ACCESS_EXPERT)
chunk_appendf(msg, "e");
if (s->pcli_flags & ACCESS_MCLI_DEBUG)
chunk_appendf(msg, "d");
chunk_appendf(msg, ")");
}
chunk_appendf(msg, "> ");
}
co_inject(oc, msg->area, msg->data);
}