VOL-381 add unum container to support ONOS cluster formation under swarm

Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/unum/vendor/github.com/docker/go-units/LICENSE b/unum/vendor/github.com/docker/go-units/LICENSE
new file mode 100644
index 0000000..b55b37b
--- /dev/null
+++ b/unum/vendor/github.com/docker/go-units/LICENSE
@@ -0,0 +1,191 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        https://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2015 Docker, Inc.
+
+   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
+
+       https://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.
diff --git a/unum/vendor/github.com/docker/go-units/README.md b/unum/vendor/github.com/docker/go-units/README.md
new file mode 100644
index 0000000..4f70a4e
--- /dev/null
+++ b/unum/vendor/github.com/docker/go-units/README.md
@@ -0,0 +1,16 @@
+[![GoDoc](https://godoc.org/github.com/docker/go-units?status.svg)](https://godoc.org/github.com/docker/go-units)
+
+# Introduction
+
+go-units is a library to transform human friendly measurements into machine friendly values.
+
+## Usage
+
+See the [docs in godoc](https://godoc.org/github.com/docker/go-units) for examples and documentation.
+
+## Copyright and license
+
+Copyright © 2015 Docker, Inc.
+
+go-units is licensed under the Apache License, Version 2.0.
+See [LICENSE](LICENSE) for the full text of the license.
diff --git a/unum/vendor/github.com/docker/go-units/duration.go b/unum/vendor/github.com/docker/go-units/duration.go
new file mode 100644
index 0000000..ba02af2
--- /dev/null
+++ b/unum/vendor/github.com/docker/go-units/duration.go
@@ -0,0 +1,35 @@
+// Package units provides helper function to parse and print size and time units
+// in human-readable format.
+package units
+
+import (
+	"fmt"
+	"time"
+)
+
+// HumanDuration returns a human-readable approximation of a duration
+// (eg. "About a minute", "4 hours ago", etc.).
+func HumanDuration(d time.Duration) string {
+	if seconds := int(d.Seconds()); seconds < 1 {
+		return "Less than a second"
+	} else if seconds == 1 {
+		return "1 second"
+	} else if seconds < 60 {
+		return fmt.Sprintf("%d seconds", seconds)
+	} else if minutes := int(d.Minutes()); minutes == 1 {
+		return "About a minute"
+	} else if minutes < 46 {
+		return fmt.Sprintf("%d minutes", minutes)
+	} else if hours := int(d.Hours() + 0.5); hours == 1 {
+		return "About an hour"
+	} else if hours < 48 {
+		return fmt.Sprintf("%d hours", hours)
+	} else if hours < 24*7*2 {
+		return fmt.Sprintf("%d days", hours/24)
+	} else if hours < 24*30*2 {
+		return fmt.Sprintf("%d weeks", hours/24/7)
+	} else if hours < 24*365*2 {
+		return fmt.Sprintf("%d months", hours/24/30)
+	}
+	return fmt.Sprintf("%d years", int(d.Hours())/24/365)
+}
diff --git a/unum/vendor/github.com/docker/go-units/size.go b/unum/vendor/github.com/docker/go-units/size.go
new file mode 100644
index 0000000..44616c2
--- /dev/null
+++ b/unum/vendor/github.com/docker/go-units/size.go
@@ -0,0 +1,108 @@
+package units
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+// See: http://en.wikipedia.org/wiki/Binary_prefix
+const (
+	// Decimal
+
+	KB = 1000
+	MB = 1000 * KB
+	GB = 1000 * MB
+	TB = 1000 * GB
+	PB = 1000 * TB
+
+	// Binary
+
+	KiB = 1024
+	MiB = 1024 * KiB
+	GiB = 1024 * MiB
+	TiB = 1024 * GiB
+	PiB = 1024 * TiB
+)
+
+type unitMap map[string]int64
+
+var (
+	decimalMap = unitMap{"k": KB, "m": MB, "g": GB, "t": TB, "p": PB}
+	binaryMap  = unitMap{"k": KiB, "m": MiB, "g": GiB, "t": TiB, "p": PiB}
+	sizeRegex  = regexp.MustCompile(`^(\d+(\.\d+)*) ?([kKmMgGtTpP])?[bB]?$`)
+)
+
+var decimapAbbrs = []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"}
+var binaryAbbrs = []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"}
+
+func getSizeAndUnit(size float64, base float64, _map []string) (float64, string) {
+	i := 0
+	unitsLimit := len(_map) - 1
+	for size >= base && i < unitsLimit {
+		size = size / base
+		i++
+	}
+	return size, _map[i]
+}
+
+// CustomSize returns a human-readable approximation of a size
+// using custom format.
+func CustomSize(format string, size float64, base float64, _map []string) string {
+	size, unit := getSizeAndUnit(size, base, _map)
+	return fmt.Sprintf(format, size, unit)
+}
+
+// HumanSizeWithPrecision allows the size to be in any precision,
+// instead of 4 digit precision used in units.HumanSize.
+func HumanSizeWithPrecision(size float64, precision int) string {
+	size, unit := getSizeAndUnit(size, 1000.0, decimapAbbrs)
+	return fmt.Sprintf("%.*g%s", precision, size, unit)
+}
+
+// HumanSize returns a human-readable approximation of a size
+// capped at 4 valid numbers (eg. "2.746 MB", "796 KB").
+func HumanSize(size float64) string {
+	return HumanSizeWithPrecision(size, 4)
+}
+
+// BytesSize returns a human-readable size in bytes, kibibytes,
+// mebibytes, gibibytes, or tebibytes (eg. "44kiB", "17MiB").
+func BytesSize(size float64) string {
+	return CustomSize("%.4g%s", size, 1024.0, binaryAbbrs)
+}
+
+// FromHumanSize returns an integer from a human-readable specification of a
+// size using SI standard (eg. "44kB", "17MB").
+func FromHumanSize(size string) (int64, error) {
+	return parseSize(size, decimalMap)
+}
+
+// RAMInBytes parses a human-readable string representing an amount of RAM
+// in bytes, kibibytes, mebibytes, gibibytes, or tebibytes and
+// returns the number of bytes, or -1 if the string is unparseable.
+// Units are case-insensitive, and the 'b' suffix is optional.
+func RAMInBytes(size string) (int64, error) {
+	return parseSize(size, binaryMap)
+}
+
+// Parses the human-readable size string into the amount it represents.
+func parseSize(sizeStr string, uMap unitMap) (int64, error) {
+	matches := sizeRegex.FindStringSubmatch(sizeStr)
+	if len(matches) != 4 {
+		return -1, fmt.Errorf("invalid size: '%s'", sizeStr)
+	}
+
+	size, err := strconv.ParseFloat(matches[1], 64)
+	if err != nil {
+		return -1, err
+	}
+
+	unitPrefix := strings.ToLower(matches[3])
+	if mul, ok := uMap[unitPrefix]; ok {
+		size *= float64(mul)
+	}
+
+	return int64(size), nil
+}
diff --git a/unum/vendor/github.com/docker/go-units/ulimit.go b/unum/vendor/github.com/docker/go-units/ulimit.go
new file mode 100644
index 0000000..5ac7fd8
--- /dev/null
+++ b/unum/vendor/github.com/docker/go-units/ulimit.go
@@ -0,0 +1,118 @@
+package units
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// Ulimit is a human friendly version of Rlimit.
+type Ulimit struct {
+	Name string
+	Hard int64
+	Soft int64
+}
+
+// Rlimit specifies the resource limits, such as max open files.
+type Rlimit struct {
+	Type int    `json:"type,omitempty"`
+	Hard uint64 `json:"hard,omitempty"`
+	Soft uint64 `json:"soft,omitempty"`
+}
+
+const (
+	// magic numbers for making the syscall
+	// some of these are defined in the syscall package, but not all.
+	// Also since Windows client doesn't get access to the syscall package, need to
+	//	define these here
+	rlimitAs         = 9
+	rlimitCore       = 4
+	rlimitCPU        = 0
+	rlimitData       = 2
+	rlimitFsize      = 1
+	rlimitLocks      = 10
+	rlimitMemlock    = 8
+	rlimitMsgqueue   = 12
+	rlimitNice       = 13
+	rlimitNofile     = 7
+	rlimitNproc      = 6
+	rlimitRss        = 5
+	rlimitRtprio     = 14
+	rlimitRttime     = 15
+	rlimitSigpending = 11
+	rlimitStack      = 3
+)
+
+var ulimitNameMapping = map[string]int{
+	//"as":         rlimitAs, // Disabled since this doesn't seem usable with the way Docker inits a container.
+	"core":       rlimitCore,
+	"cpu":        rlimitCPU,
+	"data":       rlimitData,
+	"fsize":      rlimitFsize,
+	"locks":      rlimitLocks,
+	"memlock":    rlimitMemlock,
+	"msgqueue":   rlimitMsgqueue,
+	"nice":       rlimitNice,
+	"nofile":     rlimitNofile,
+	"nproc":      rlimitNproc,
+	"rss":        rlimitRss,
+	"rtprio":     rlimitRtprio,
+	"rttime":     rlimitRttime,
+	"sigpending": rlimitSigpending,
+	"stack":      rlimitStack,
+}
+
+// ParseUlimit parses and returns a Ulimit from the specified string.
+func ParseUlimit(val string) (*Ulimit, error) {
+	parts := strings.SplitN(val, "=", 2)
+	if len(parts) != 2 {
+		return nil, fmt.Errorf("invalid ulimit argument: %s", val)
+	}
+
+	if _, exists := ulimitNameMapping[parts[0]]; !exists {
+		return nil, fmt.Errorf("invalid ulimit type: %s", parts[0])
+	}
+
+	var (
+		soft int64
+		hard = &soft // default to soft in case no hard was set
+		temp int64
+		err  error
+	)
+	switch limitVals := strings.Split(parts[1], ":"); len(limitVals) {
+	case 2:
+		temp, err = strconv.ParseInt(limitVals[1], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+		hard = &temp
+		fallthrough
+	case 1:
+		soft, err = strconv.ParseInt(limitVals[0], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+	default:
+		return nil, fmt.Errorf("too many limit value arguments - %s, can only have up to two, `soft[:hard]`", parts[1])
+	}
+
+	if soft > *hard {
+		return nil, fmt.Errorf("ulimit soft limit must be less than or equal to hard limit: %d > %d", soft, *hard)
+	}
+
+	return &Ulimit{Name: parts[0], Soft: soft, Hard: *hard}, nil
+}
+
+// GetRlimit returns the RLimit corresponding to Ulimit.
+func (u *Ulimit) GetRlimit() (*Rlimit, error) {
+	t, exists := ulimitNameMapping[u.Name]
+	if !exists {
+		return nil, fmt.Errorf("invalid ulimit name %s", u.Name)
+	}
+
+	return &Rlimit{Type: t, Soft: uint64(u.Soft), Hard: uint64(u.Hard)}, nil
+}
+
+func (u *Ulimit) String() string {
+	return fmt.Sprintf("%s=%d:%d", u.Name, u.Soft, u.Hard)
+}