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machinectl: show most recent log output in "machinectl status", too

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This commit is contained in:
Lennart Poettering 2015-01-08 15:09:12 +01:00
parent 3c7560019e
commit 8b0cc9a36c
4 changed files with 111 additions and 28 deletions
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2
Makefile.am
View file

@ -5078,6 +5078,8 @@ machinectl_SOURCES = \
machinectl_LDADD = \
libsystemd-internal.la \
libsystemd-logs.la \
libsystemd-journal-internal.la \
libsystemd-shared.la
rootbin_PROGRAMS += \

47
man/machinectl.xml
View file

@ -165,6 +165,34 @@
mount.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-n</option></term>
<term><option>--lines=</option></term>
<listitem><para>When used with
<command>status</command>, controls
the number of journal lines to show,
counting from the most recent
ones. Takes a positive integer
argument. Defaults to 10.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-o</option></term>
<term><option>--output=</option></term>
<listitem><para>When used with
<command>status</command>, controls
the formatting of the journal entries
that are shown. For the available
choices, see
<citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
Defaults to
<literal>short</literal>.</para></listitem>
</varlistentry>
<xi:include href="user-system-options.xml" xpointer="host" />
<xi:include href="user-system-options.xml" xpointer="machine" />
@ -189,12 +217,19 @@
<listitem><para>Show terse runtime
status information about one or more
virtual machines and containers. This
function is intended to generate
human-readable output. If you are
looking for computer-parsable output,
use <command>show</command> instead.
</para></listitem>
virtual machines and containers,
followed by the most recent log data
from the journal. This function is
intended to generate human-readable
output. If you are looking for
computer-parsable output, use
<command>show</command> instead. Note
that the log data shown is reported by
the virtual machine or container
manager, and frequently contains
console output of the machine, but not
necessarily journal contents of the
machine itself.</para></listitem>
</varlistentry>
<varlistentry>

86
src/machine/machinectl.c
View file

@ -44,6 +44,7 @@
#include "strv.h"
#include "unit-name.h"
#include "cgroup-show.h"
#include "logs-show.h"
#include "cgroup-util.h"
#include "ptyfwd.h"
#include "event-util.h"
@ -64,6 +65,8 @@ static char *arg_host = NULL;
static bool arg_read_only = false;
static bool arg_mkdir = false;
static bool arg_quiet = false;
static unsigned arg_lines = 10;
static OutputMode arg_output = OUTPUT_SHORT;
static void pager_open_if_enabled(void) {
@ -74,6 +77,15 @@ static void pager_open_if_enabled(void) {
pager_open(false);
}
static OutputFlags get_output_flags(void) {
return
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
}
typedef struct MachineInfo {
const char *name;
const char *class;
@ -305,7 +317,7 @@ static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL;
const char *cgroup;
int r, output_flags;
int r;
unsigned c;
assert(bus);
@ -342,17 +354,13 @@ static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) {
if (cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, cgroup, false) != 0 && leader <= 0)
return 0;
output_flags =
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH;
c = columns();
if (c > 18)
c -= 18;
else
c = 0;
show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, cgroup, "\t\t ", c, false, &leader, leader > 0, output_flags);
show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, cgroup, "\t\t ", c, false, &leader, leader > 0, get_output_flags());
return 0;
}
@ -467,7 +475,7 @@ typedef struct MachineStatusInfo {
char *unit;
char *root_directory;
pid_t leader;
usec_t timestamp;
struct dual_timestamp timestamp;
int *netif;
unsigned n_netif;
} MachineStatusInfo;
@ -487,8 +495,8 @@ static void print_machine_status_info(sd_bus *bus, MachineStatusInfo *i) {
else
putchar('\n');
s1 = format_timestamp_relative(since1, sizeof(since1), i->timestamp);
s2 = format_timestamp(since2, sizeof(since2), i->timestamp);
s1 = format_timestamp_relative(since1, sizeof(since1), i->timestamp.realtime);
s2 = format_timestamp(since2, sizeof(since2), i->timestamp.realtime);
if (s1)
printf("\t Since: %s; %s\n", s2, s1);
@ -552,6 +560,22 @@ static void print_machine_status_info(sd_bus *bus, MachineStatusInfo *i) {
if (i->unit) {
printf("\t Unit: %s\n", i->unit);
show_unit_cgroup(bus, i->unit, i->leader);
if (arg_transport == BUS_TRANSPORT_LOCAL) {
show_journal_by_unit(
stdout,
i->unit,
arg_output,
0,
i->timestamp.monotonic,
arg_lines,
0,
get_output_flags() | OUTPUT_BEGIN_NEWLINE,
SD_JOURNAL_LOCAL_ONLY,
true,
NULL);
}
}
}
@ -579,15 +603,16 @@ static int map_netif(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_
static int show_machine_info(const char *verb, sd_bus *bus, const char *path, bool *new_line) {
static const struct bus_properties_map map[] = {
{ "Name", "s", NULL, offsetof(MachineStatusInfo, name) },
{ "Class", "s", NULL, offsetof(MachineStatusInfo, class) },
{ "Service", "s", NULL, offsetof(MachineStatusInfo, service) },
{ "Unit", "s", NULL, offsetof(MachineStatusInfo, unit) },
{ "RootDirectory", "s", NULL, offsetof(MachineStatusInfo, root_directory) },
{ "Leader", "u", NULL, offsetof(MachineStatusInfo, leader) },
{ "Timestamp", "t", NULL, offsetof(MachineStatusInfo, timestamp) },
{ "Id", "ay", bus_map_id128, offsetof(MachineStatusInfo, id) },
{ "NetworkInterfaces", "ai", map_netif, 0 },
{ "Name", "s", NULL, offsetof(MachineStatusInfo, name) },
{ "Class", "s", NULL, offsetof(MachineStatusInfo, class) },
{ "Service", "s", NULL, offsetof(MachineStatusInfo, service) },
{ "Unit", "s", NULL, offsetof(MachineStatusInfo, unit) },
{ "RootDirectory", "s", NULL, offsetof(MachineStatusInfo, root_directory) },
{ "Leader", "u", NULL, offsetof(MachineStatusInfo, leader) },
{ "Timestamp", "t", NULL, offsetof(MachineStatusInfo, timestamp.realtime) },
{ "TimestampMonotonic", "t", NULL, offsetof(MachineStatusInfo, timestamp.monotonic) },
{ "Id", "ay", bus_map_id128, offsetof(MachineStatusInfo, id) },
{ "NetworkInterfaces", "ai", map_netif, 0 },
{}
};
@ -1693,7 +1718,11 @@ static int help(int argc, char *argv[], void *userdata) {
" --kill-who=WHO Who to send signal to\n"
" -s --signal=SIGNAL Which signal to send\n"
" --read-only Create read-only bind mount\n"
" --mkdir Create directory before bind mounting, if missing\n\n"
" --mkdir Create directory before bind mounting, if missing\n"
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short,\n"
" short-monotonic, verbose, export, json,\n"
" json-pretty, json-sse, cat)\n\n"
"Machine Commands:\n"
" list List running VMs and containers\n"
" status NAME... Show VM/container details\n"
@ -1748,6 +1777,8 @@ static int parse_argv(int argc, char *argv[]) {
{ "read-only", no_argument, NULL, ARG_READ_ONLY },
{ "mkdir", no_argument, NULL, ARG_MKDIR },
{ "quiet", no_argument, NULL, 'q' },
{ "lines", required_argument, NULL, 'n' },
{ "output", required_argument, NULL, 'o' },
{}
};
@ -1756,7 +1787,7 @@ static int parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "hp:als:H:M:q", options, NULL)) >= 0)
while ((c = getopt_long(argc, argv, "hp:als:H:M:qn:o:", options, NULL)) >= 0)
switch (c) {
@ -1787,6 +1818,21 @@ static int parse_argv(int argc, char *argv[]) {
arg_full = true;
break;
case 'n':
if (safe_atou(optarg, &arg_lines) < 0) {
log_error("Failed to parse lines '%s'", optarg);
return -EINVAL;
}
break;
case 'o':
arg_output = output_mode_from_string(optarg);
if (arg_output < 0) {
log_error("Unknown output '%s'.", optarg);
return -EINVAL;
}
break;
case ARG_NO_PAGER:
arg_no_pager = true;
break;

4
src/systemctl/systemctl.c
View file

@ -197,10 +197,10 @@ static void polkit_agent_open_if_enabled(void) {
static OutputFlags get_output_flags(void) {
return
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF |
arg_full * OUTPUT_FULL_WIDTH;
!arg_quiet * OUTPUT_WARN_CUTOFF;
}
static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {