Print system information (uname) at Prometheus startup (#2709)

* Print uname on prom startup

* Make uname file linux-only

* Add missing license headers

Add missing license headers

* Print OS when uname is not available

* Print only OS name when uname not available

* Remove extra space, fix cmd/prometheus/main.go license header

* Add fix for int8 and uint8 systems

* Better formatting for build tags in cmd/prometheus/uname files

* Remove newline
This commit is contained in:
Shashank Varanasi 2017-05-14 00:12:29 +05:30 committed by Tobias Schmidt
parent ac203ef0ee
commit 61235fd851
5 changed files with 109 additions and 0 deletions

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@ -87,6 +87,7 @@ func Main() int {
log.Infoln("Starting prometheus", version.Info())
log.Infoln("Build context", version.BuildContext())
log.Infoln("Host details", Uname())
var (
sampleAppender = storage.Fanout{}

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@ -0,0 +1,23 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !linux
package main
import "runtime"
// Uname for any platform other than linux.
func Uname() string {
return "(" + runtime.GOOS + ")"
}

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@ -0,0 +1,35 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"log"
"syscall"
)
// Uname returns the uname of the host machine.
func Uname() string {
buf := syscall.Utsname{}
err := syscall.Uname(&buf)
if err != nil {
log.Fatal("Error!")
}
str := "(" + charsToString(buf.Sysname[:])
str += " " + charsToString(buf.Release[:])
str += " " + charsToString(buf.Version[:])
str += " " + charsToString(buf.Machine[:])
str += " " + charsToString(buf.Nodename[:])
str += " " + charsToString(buf.Domainname[:]) + ")"
return str
}

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@ -0,0 +1,25 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build 386 amd64 arm64 mips64 mips64le mips mipsle
// +build linux
package main
func charsToString(ca []int8) string {
s := make([]byte, len(ca))
for i, c := range ca {
s[i] = byte(c)
}
return string(s[0:len(ca)])
}

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@ -0,0 +1,25 @@
// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build arm ppc64 ppc64le s390x
// +build linux
package main
func charsToString(ca []uint8) string {
s := make([]byte, len(ca))
for i, c := range ca {
s[i] = byte(c)
}
return string(s[0:len(ca)])
}