Add Grafana, AlertManager, vmutils

The *vmutils* package can be built from source easily, as its just a
collection of Go applications.  Grafana and Alertmanager are quite a bit
more complicated because of their respective browser applications.  In
the interest of getting this project actually going, we'll just install
the official binary releases of these (for now?).

package/vmutils/Config.in

@@ -0,0 +1,57 @@
+menuconfig BR2_PACKAGE_VMUTILS
+	bool "vmutils"
+	help
+	  Victoria Metrics utilities
+
+if BR2_PACKAGE_VMUTILS
+
+config BR2_PACKAGE_VMUTILS_VMAGENT
+	bool "vmagent"
+	help
+	  vmagent is a tiny but mighty agent which helps you collect metrics
+	  from various sources and store them in VictoriaMetrics or any other
+	  Prometheus-compatible storage systems that support the remote_write
+	  protocol.
+
+config BR2_PACKAGE_VMUTILS_VMALERT
+	bool "vmalert"
+	help
+	  vmalert executes a list of the given alerting or recording rules
+	  against configured -datasource.url. For sending alerting
+	  notifications vmalert relies on Alertmanager configured via
+	  -notifier.url flag. Recording rules results are persisted via remote
+	  write protocol and require -remoteWrite.url to be configured. Vmalert
+	  is heavily inspired by Prometheus implementation and aims to be
+	  compatible with its syntax.
+
+config BR2_PACKAGE_VMUTILS_VMAUTH
+	bool "vmauth"
+	help
+	  vmauth is a simple auth proxy, router and load balancer for
+	  VictoriaMetrics. It reads auth credentials from Authorization http
+	  header (Basic Auth, Bearer token and InfluxDB authorization is
+	  supported), matches them against configs pointed by -auth.config
+	  command-line flag and proxies incoming HTTP requests to the
+	  configured per-user url_prefix on successful match. The -auth.config
+	  can point to either local file or to http url.
+
+config BR2_PACKAGE_VMUTILS_VMBACKUP
+	bool "vmbackup"
+	help
+	  vmbackup creates VictoriaMetrics data backups from instant snapshots.
+
+config BR2_PACKAGE_VMUTILS_VMRESTORE
+	bool "vmrestore"
+	help
+	  vmrestore restores data from backups created by vmbackup.
+	  VictoriaMetrics v1.29.0 and newer versions must be used for working
+	  with the restored data.
+
+config BR2_PACKAGE_VMUTILS_VMCTL
+	bool "vmctl"
+	help
+	  VictoriaMetrics command-line tool
+
+          vmctl provides various useful actions with VictoriaMetrics components.
+
+endif

package/vmutils/vmutils.mk

@@ -0,0 +1,39 @@
+VMUTILS_VERSION = 1.78.0
+VMUTILS_SITE = $(call github,VictoriaMetrics,VictoriaMetrics,v$(VMUTILS_VERSION))
+VMUTILS_LICENSE = Apache-2.0
+VMUTILS_LICENSE_FILES = LICENSE
+
+VMUTILS_LDFLAGS = -extldflags '-static'
+VMUTILS_TAGS = netgo osusergo nethttpomithttp2 musl
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMAGENT),y)
+VMUTILS_BUILD_TARGETS += app/vmagent
+VMUTILS_INSTALL_BINS += vmagent
+endif
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMALERT),y)
+VMUTILS_BUILD_TARGETS += app/vmalert
+VMUTILS_INSTALL_BINS += vmalert
+endif
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMAUTH),y)
+VMUTILS_BUILD_TARGETS += app/vmauth
+VMUTILS_INSTALL_BINS += vmauth
+endif
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMBACKUP),y)
+VMUTILS_BUILD_TARGETS += app/vmbackup
+VMUTILS_INSTALL_BINS += vmbackup
+endif
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMRESTORE),y)
+VMUTILS_BUILD_TARGETS += app/vmrestore
+VMUTILS_INSTALL_BINS += vmrestore
+endif
+
+ifeq ($(BR2_PACKAGE_VMUTILS_VMCTL),y)
+VMUTILS_BUILD_TARGETS += app/vmctl
+VMUTILS_INSTALL_BINS += vmctl
+endif
+
+$(eval $(golang-package))