INSTANCE_ATTR_JAIL,
INSTANCE_ATTR_TRACE,
INSTANCE_ATTR_SECCOMP,
+ INSTANCE_ATTR_PIDFILE,
__INSTANCE_ATTR_MAX
};
[INSTANCE_ATTR_JAIL] = { "jail", BLOBMSG_TYPE_TABLE },
[INSTANCE_ATTR_TRACE] = { "trace", BLOBMSG_TYPE_BOOL },
[INSTANCE_ATTR_SECCOMP] = { "seccomp", BLOBMSG_TYPE_STRING },
+ [INSTANCE_ATTR_PIDFILE] = { "pidfile", BLOBMSG_TYPE_STRING },
};
enum {
return argc;
}
+static int
+instance_removepid(struct service_instance *in) {
+ if (!in->pidfile)
+ return 0;
+ if (unlink(in->pidfile)) {
+ ERROR("Failed to removed pidfile: %s: %d - %s\n",
+ in->pidfile, errno, strerror(errno));
+ return 1;
+ }
+ return 0;
+}
+
+static int
+instance_writepid(struct service_instance *in)
+{
+ FILE *_pidfile;
+
+ if (!in->pidfile) {
+ return 0;
+ }
+ _pidfile = fopen(in->pidfile, "w");
+ if (_pidfile == NULL) {
+ ERROR("failed to open pidfile for writing: %s: %d (%s)",
+ in->pidfile, errno, strerror(errno));
+ return 1;
+ }
+ if (fprintf(_pidfile, "%d\n", in->proc.pid) < 0) {
+ ERROR("failed to write pidfile: %s: %d (%s)",
+ in->pidfile, errno, strerror(errno));
+ fclose(_pidfile);
+ return 2;
+ }
+ if (fclose(_pidfile)) {
+ ERROR("failed to close pidfile: %s: %d (%s)",
+ in->pidfile, errno, strerror(errno));
+ return 3;
+ }
+
+ return 0;
+}
+
static void
instance_run(struct service_instance *in, int _stdout, int _stderr)
{
return;
}
- if (in->proc.pending)
+ if (in->proc.pending || !in->command)
return;
instance_free_stdio(in);
return;
}
- DEBUG(2, "Started instance %s::%s\n", in->srv->name, in->name);
+ DEBUG(2, "Started instance %s::%s[%d]\n", in->srv->name, in->name, pid);
in->proc.pid = pid;
+ instance_writepid(in);
clock_gettime(CLOCK_MONOTONIC, &in->start);
uloop_process_add(&in->proc);
uloop_timeout_cancel(&in->timeout);
if (in->halt) {
- /* no action */
+ instance_removepid(in);
} else if (in->restart) {
instance_start(in);
} else if (in->respawn) {
in->srv->name, in->name, in->respawn_count, runtime);
in->restart = in->respawn = 0;
in->halt = 1;
+ service_event("instance.fail", in->srv->name, in->name);
} else {
+ service_event("instance.respawn", in->srv->name, in->name);
uloop_timeout_set(&in->timeout, in->respawn_timeout * 1000);
}
}
in->halt = false;
in->restart = true;
kill(in->proc.pid, SIGTERM);
+ instance_removepid(in);
}
static bool
if (!blobmsg_list_equal(&in->env, &in_new->env))
return true;
- if (!blobmsg_list_equal(&in->data, &in_new->data))
- return true;
-
if (!blobmsg_list_equal(&in->netdev, &in_new->netdev))
return true;
if (in->gid != in_new->gid)
return true;
+ if (in->pidfile && in_new->pidfile)
+ if (strcmp(in->pidfile, in_new->pidfile))
+ return true;
+
+ if (in->pidfile && !in_new->pidfile)
+ return true;
+
+ if (!in->pidfile && in_new->pidfile)
+ return true;
+
if (!blobmsg_list_equal(&in->limits, &in_new->limits))
return true;
}
static bool
-instance_config_parse(struct service_instance *in)
+instance_config_parse_command(struct service_instance *in, struct blob_attr **tb)
{
- struct blob_attr *tb[__INSTANCE_ATTR_MAX];
struct blob_attr *cur, *cur2;
- int argc = 0;
+ bool ret = false;
int rem;
- blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb,
- blobmsg_data(in->config), blobmsg_data_len(in->config));
-
cur = tb[INSTANCE_ATTR_COMMAND];
- if (!cur)
- return false;
+ if (!cur) {
+ in->command = NULL;
+ return true;
+ }
if (!blobmsg_check_attr_list(cur, BLOBMSG_TYPE_STRING))
return false;
blobmsg_for_each_attr(cur2, cur, rem) {
- argc++;
+ ret = true;
break;
}
- if (!argc)
- return false;
in->command = cur;
+ return ret;
+}
+
+static bool
+instance_config_parse(struct service_instance *in)
+{
+ struct blob_attr *tb[__INSTANCE_ATTR_MAX];
+ struct blob_attr *cur, *cur2;
+ int rem;
+
+ blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb,
+ blobmsg_data(in->config), blobmsg_data_len(in->config));
+
+ if (!instance_config_parse_command(in, tb))
+ return false;
if (tb[INSTANCE_ATTR_RESPAWN]) {
int i = 0;
else
in->seccomp = seccomp;
}
+
+ if (tb[INSTANCE_ATTR_PIDFILE]) {
+ char *pidfile = blobmsg_get_string(tb[INSTANCE_ATTR_PIDFILE]);
+ if (pidfile)
+ in->pidfile = pidfile;
+ }
+
if (!in->trace && tb[INSTANCE_ATTR_JAIL])
in->has_jail = instance_jail_parse(in, tb[INSTANCE_ATTR_JAIL]);
blobmsg_list_move(&in->jail.mount, &in_src->jail.mount);
in->trigger = in_src->trigger;
in->command = in_src->command;
+ in->pidfile = in_src->pidfile;
in->name = in_src->name;
in->node.avl.key = in_src->node.avl.key;
in_src->config = NULL;
}
-bool
+void
instance_update(struct service_instance *in, struct service_instance *in_new)
{
bool changed = instance_config_changed(in, in_new);
bool running = in->proc.pending;
- if (!changed && running)
- return false;
-
if (!running) {
- if (changed)
- instance_config_move(in, in_new);
+ instance_config_move(in, in_new);
instance_start(in);
} else {
- instance_restart(in);
+ if (changed)
+ instance_restart(in);
instance_config_move(in, in_new);
/* restart happens in the child callback handler */
}
- return true;
}
void
blobmsg_add_u8(b, "running", in->proc.pending);
if (in->proc.pending)
blobmsg_add_u32(b, "pid", in->proc.pid);
- blobmsg_add_blob(b, in->command);
+ if (in->command)
+ blobmsg_add_blob(b, in->command);
if (!avl_is_empty(&in->errors.avl)) {
struct blobmsg_list_node *var;
if (in->seccomp)
blobmsg_add_string(b, "seccomp", in->seccomp);
+ if (in->pidfile)
+ blobmsg_add_string(b, "pidfile", in->pidfile);
+
if (in->has_jail) {
void *r = blobmsg_open_table(b, "jail");
if (in->jail.name)