Add glide.yaml and vendor deps

This commit is contained in:
Dalton Hubble 2016-12-03 22:43:32 -08:00
parent db918f12ad
commit 5b3d5e81bd
18880 changed files with 5166045 additions and 1 deletions

View file

@ -0,0 +1,30 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
name = "go_default_library",
srcs = [
"container_manager.go",
"container_manager_linux.go",
],
tags = ["automanaged"],
deps = [
"//pkg/kubelet/cm:go_default_library",
"//pkg/kubelet/dockertools:go_default_library",
"//pkg/kubelet/qos:go_default_library",
"//pkg/util/wait:go_default_library",
"//vendor:github.com/blang/semver",
"//vendor:github.com/golang/glog",
"//vendor:github.com/opencontainers/runc/libcontainer/cgroups/fs",
"//vendor:github.com/opencontainers/runc/libcontainer/configs",
],
)

View file

@ -0,0 +1,21 @@
/*
Copyright 2016 The Kubernetes 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 cm
type ContainerManager interface {
Start() error
}

View file

@ -0,0 +1,147 @@
// +build linux
/*
Copyright 2016 The Kubernetes 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 cm
import (
"fmt"
"io/ioutil"
"regexp"
"strconv"
"time"
"github.com/blang/semver"
"github.com/golang/glog"
"github.com/opencontainers/runc/libcontainer/cgroups/fs"
"github.com/opencontainers/runc/libcontainer/configs"
kubecm "k8s.io/kubernetes/pkg/kubelet/cm"
"k8s.io/kubernetes/pkg/kubelet/dockertools"
"k8s.io/kubernetes/pkg/kubelet/qos"
"k8s.io/kubernetes/pkg/util/wait"
)
const (
// The percent of the machine memory capacity.
dockerMemoryLimitThresholdPercent = kubecm.DockerMemoryLimitThresholdPercent
// The minimum memory limit allocated to docker container.
minDockerMemoryLimit = kubecm.MinDockerMemoryLimit
// The Docker OOM score adjustment.
dockerOOMScoreAdj = qos.DockerOOMScoreAdj
)
var (
memoryCapacityRegexp = regexp.MustCompile(`MemTotal:\s*([0-9]+) kB`)
)
func NewContainerManager(cgroupsName string, client dockertools.DockerInterface) ContainerManager {
return &containerManager{
cgroupsName: cgroupsName,
client: client,
}
}
type containerManager struct {
// Docker client.
client dockertools.DockerInterface
// Name of the cgroups.
cgroupsName string
// Manager for the cgroups.
cgroupsManager *fs.Manager
}
func (m *containerManager) Start() error {
// TODO: check if the required cgroups are mounted.
if len(m.cgroupsName) != 0 {
manager, err := createCgroupManager(m.cgroupsName)
if err != nil {
return err
}
m.cgroupsManager = manager
}
go wait.Until(m.doWork, 5*time.Minute, wait.NeverStop)
return nil
}
func (m *containerManager) doWork() {
v, err := m.client.Version()
if err != nil {
glog.Errorf("Unable to get docker version: %v", err)
return
}
version, err := semver.Parse(v.Version)
if err != nil {
glog.Errorf("Unable to parse docker version %q: %v", v.Version, err)
return
}
// EnsureDockerInConatiner does two things.
// 1. Ensure processes run in the cgroups if m.cgroupsManager is not nil.
// 2. Ensure processes have the OOM score applied.
if err := kubecm.EnsureDockerInContainer(version, dockerOOMScoreAdj, m.cgroupsManager); err != nil {
glog.Errorf("Unable to ensure the docker processes run in the desired containers")
}
}
func createCgroupManager(name string) (*fs.Manager, error) {
var memoryLimit uint64
memoryCapacity, err := getMemoryCapacity()
if err != nil || memoryCapacity*dockerMemoryLimitThresholdPercent/100 < minDockerMemoryLimit {
memoryLimit = minDockerMemoryLimit
}
glog.V(2).Infof("Configure resource-only container %q with memory limit: %d", name, memoryLimit)
allowAllDevices := true
cm := &fs.Manager{
Cgroups: &configs.Cgroup{
Parent: "/",
Name: name,
Resources: &configs.Resources{
Memory: int64(memoryLimit),
MemorySwap: -1,
AllowAllDevices: &allowAllDevices,
},
},
}
return cm, nil
}
// getMemoryCapacity returns the memory capacity on the machine in bytes.
func getMemoryCapacity() (uint64, error) {
out, err := ioutil.ReadFile("/proc/meminfo")
if err != nil {
return 0, err
}
return parseCapacity(out, memoryCapacityRegexp)
}
// parseCapacity matches a Regexp in a []byte, returning the resulting value in bytes.
// Assumes that the value matched by the Regexp is in KB.
func parseCapacity(b []byte, r *regexp.Regexp) (uint64, error) {
matches := r.FindSubmatch(b)
if len(matches) != 2 {
return 0, fmt.Errorf("failed to match regexp in output: %q", string(b))
}
m, err := strconv.ParseUint(string(matches[1]), 10, 64)
if err != nil {
return 0, err
}
// Convert to bytes.
return m * 1024, err
}

View file

@ -0,0 +1,36 @@
// +build !linux
/*
Copyright 2016 The Kubernetes 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 cm
import (
"fmt"
"k8s.io/kubernetes/pkg/kubelet/dockertools"
)
type unsupportedContainerManager struct {
}
func NewContainerManager(_ string, _ dockertools.DockerInterface) ContainerManager {
return &unsupportedContainerManager{}
}
func (m *unsupportedContainerManager) Start() error {
return fmt.Errorf("Container Manager is unsupported in this build")
}