This update provides:
1) workaround around the build failures. In
summary, it forces the download of some packages during the build
process.
2) update the set of packages that should go inside the vendor
directory
3) Update the dockerfile to use go 1.10
Change-Id: I2bfd090ce0f25b0c10aa214755ae2da7e5384d60
diff --git a/vendor/github.com/coreos/go-systemd/LICENSE b/vendor/github.com/coreos/go-systemd/LICENSE
new file mode 100644
index 0000000..37ec93a
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/LICENSE
@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://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:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+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
+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
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ 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.
diff --git a/vendor/github.com/coreos/go-systemd/NOTICE b/vendor/github.com/coreos/go-systemd/NOTICE
new file mode 100644
index 0000000..23a0ada
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/NOTICE
@@ -0,0 +1,5 @@
+CoreOS Project
+Copyright 2018 CoreOS, Inc
+
+This product includes software developed at CoreOS, Inc.
+(http://www.coreos.com/).
diff --git a/vendor/github.com/coreos/go-systemd/daemon/sdnotify.go b/vendor/github.com/coreos/go-systemd/daemon/sdnotify.go
new file mode 100644
index 0000000..ba4ae31
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/daemon/sdnotify.go
@@ -0,0 +1,84 @@
+// Copyright 2014 Docker, Inc.
+// Copyright 2015-2018 CoreOS, 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
+//
+// 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 daemon provides a Go implementation of the sd_notify protocol.
+// It can be used to inform systemd of service start-up completion, watchdog
+// events, and other status changes.
+//
+// https://www.freedesktop.org/software/systemd/man/sd_notify.html#Description
+package daemon
+
+import (
+ "net"
+ "os"
+)
+
+const (
+ // SdNotifyReady tells the service manager that service startup is finished
+ // or the service finished loading its configuration.
+ SdNotifyReady = "READY=1"
+
+ // SdNotifyStopping tells the service manager that the service is beginning
+ // its shutdown.
+ SdNotifyStopping = "STOPPING=1"
+
+ // SdNotifyReloading tells the service manager that this service is
+ // reloading its configuration. Note that you must call SdNotifyReady when
+ // it completed reloading.
+ SdNotifyReloading = "RELOADING=1"
+
+ // SdNotifyWatchdog tells the service manager to update the watchdog
+ // timestamp for the service.
+ SdNotifyWatchdog = "WATCHDOG=1"
+)
+
+// SdNotify sends a message to the init daemon. It is common to ignore the error.
+// If `unsetEnvironment` is true, the environment variable `NOTIFY_SOCKET`
+// will be unconditionally unset.
+//
+// It returns one of the following:
+// (false, nil) - notification not supported (i.e. NOTIFY_SOCKET is unset)
+// (false, err) - notification supported, but failure happened (e.g. error connecting to NOTIFY_SOCKET or while sending data)
+// (true, nil) - notification supported, data has been sent
+func SdNotify(unsetEnvironment bool, state string) (bool, error) {
+ socketAddr := &net.UnixAddr{
+ Name: os.Getenv("NOTIFY_SOCKET"),
+ Net: "unixgram",
+ }
+
+ // NOTIFY_SOCKET not set
+ if socketAddr.Name == "" {
+ return false, nil
+ }
+
+ if unsetEnvironment {
+ if err := os.Unsetenv("NOTIFY_SOCKET"); err != nil {
+ return false, err
+ }
+ }
+
+ conn, err := net.DialUnix(socketAddr.Net, nil, socketAddr)
+ // Error connecting to NOTIFY_SOCKET
+ if err != nil {
+ return false, err
+ }
+ defer conn.Close()
+
+ if _, err = conn.Write([]byte(state)); err != nil {
+ return false, err
+ }
+ return true, nil
+}
diff --git a/vendor/github.com/coreos/go-systemd/daemon/watchdog.go b/vendor/github.com/coreos/go-systemd/daemon/watchdog.go
new file mode 100644
index 0000000..7a0e0d3
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/daemon/watchdog.go
@@ -0,0 +1,73 @@
+// Copyright 2016 CoreOS, 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
+//
+// 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 daemon
+
+import (
+ "fmt"
+ "os"
+ "strconv"
+ "time"
+)
+
+// SdWatchdogEnabled returns watchdog information for a service.
+// Processes should call daemon.SdNotify(false, daemon.SdNotifyWatchdog) every
+// time / 2.
+// If `unsetEnvironment` is true, the environment variables `WATCHDOG_USEC` and
+// `WATCHDOG_PID` will be unconditionally unset.
+//
+// It returns one of the following:
+// (0, nil) - watchdog isn't enabled or we aren't the watched PID.
+// (0, err) - an error happened (e.g. error converting time).
+// (time, nil) - watchdog is enabled and we can send ping.
+// time is delay before inactive service will be killed.
+func SdWatchdogEnabled(unsetEnvironment bool) (time.Duration, error) {
+ wusec := os.Getenv("WATCHDOG_USEC")
+ wpid := os.Getenv("WATCHDOG_PID")
+ if unsetEnvironment {
+ wusecErr := os.Unsetenv("WATCHDOG_USEC")
+ wpidErr := os.Unsetenv("WATCHDOG_PID")
+ if wusecErr != nil {
+ return 0, wusecErr
+ }
+ if wpidErr != nil {
+ return 0, wpidErr
+ }
+ }
+
+ if wusec == "" {
+ return 0, nil
+ }
+ s, err := strconv.Atoi(wusec)
+ if err != nil {
+ return 0, fmt.Errorf("error converting WATCHDOG_USEC: %s", err)
+ }
+ if s <= 0 {
+ return 0, fmt.Errorf("error WATCHDOG_USEC must be a positive number")
+ }
+ interval := time.Duration(s) * time.Microsecond
+
+ if wpid == "" {
+ return interval, nil
+ }
+ p, err := strconv.Atoi(wpid)
+ if err != nil {
+ return 0, fmt.Errorf("error converting WATCHDOG_PID: %s", err)
+ }
+ if os.Getpid() != p {
+ return 0, nil
+ }
+
+ return interval, nil
+}
diff --git a/vendor/github.com/coreos/go-systemd/journal/journal.go b/vendor/github.com/coreos/go-systemd/journal/journal.go
new file mode 100644
index 0000000..603ad4c
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/journal/journal.go
@@ -0,0 +1,189 @@
+// Copyright 2015 CoreOS, 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
+//
+// 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 journal provides write bindings to the local systemd journal.
+// It is implemented in pure Go and connects to the journal directly over its
+// unix socket.
+//
+// To read from the journal, see the "sdjournal" package, which wraps the
+// sd-journal a C API.
+//
+// http://www.freedesktop.org/software/systemd/man/systemd-journald.service.html
+package journal
+
+import (
+ "bytes"
+ "encoding/binary"
+ "errors"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "net"
+ "os"
+ "strconv"
+ "strings"
+ "syscall"
+)
+
+// Priority of a journal message
+type Priority int
+
+const (
+ PriEmerg Priority = iota
+ PriAlert
+ PriCrit
+ PriErr
+ PriWarning
+ PriNotice
+ PriInfo
+ PriDebug
+)
+
+var conn net.Conn
+
+func init() {
+ var err error
+ conn, err = net.Dial("unixgram", "/run/systemd/journal/socket")
+ if err != nil {
+ conn = nil
+ }
+}
+
+// Enabled returns true if the local systemd journal is available for logging
+func Enabled() bool {
+ return conn != nil
+}
+
+// Send a message to the local systemd journal. vars is a map of journald
+// fields to values. Fields must be composed of uppercase letters, numbers,
+// and underscores, but must not start with an underscore. Within these
+// restrictions, any arbitrary field name may be used. Some names have special
+// significance: see the journalctl documentation
+// (http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html)
+// for more details. vars may be nil.
+func Send(message string, priority Priority, vars map[string]string) error {
+ if conn == nil {
+ return journalError("could not connect to journald socket")
+ }
+
+ data := new(bytes.Buffer)
+ appendVariable(data, "PRIORITY", strconv.Itoa(int(priority)))
+ appendVariable(data, "MESSAGE", message)
+ for k, v := range vars {
+ appendVariable(data, k, v)
+ }
+
+ _, err := io.Copy(conn, data)
+ if err != nil && isSocketSpaceError(err) {
+ file, err := tempFd()
+ if err != nil {
+ return journalError(err.Error())
+ }
+ defer file.Close()
+ _, err = io.Copy(file, data)
+ if err != nil {
+ return journalError(err.Error())
+ }
+
+ rights := syscall.UnixRights(int(file.Fd()))
+
+ /* this connection should always be a UnixConn, but better safe than sorry */
+ unixConn, ok := conn.(*net.UnixConn)
+ if !ok {
+ return journalError("can't send file through non-Unix connection")
+ }
+ _, _, err = unixConn.WriteMsgUnix([]byte{}, rights, nil)
+ if err != nil {
+ return journalError(err.Error())
+ }
+ } else if err != nil {
+ return journalError(err.Error())
+ }
+ return nil
+}
+
+// Print prints a message to the local systemd journal using Send().
+func Print(priority Priority, format string, a ...interface{}) error {
+ return Send(fmt.Sprintf(format, a...), priority, nil)
+}
+
+func appendVariable(w io.Writer, name, value string) {
+ if err := validVarName(name); err != nil {
+ journalError(err.Error())
+ }
+ if strings.ContainsRune(value, '\n') {
+ /* When the value contains a newline, we write:
+ * - the variable name, followed by a newline
+ * - the size (in 64bit little endian format)
+ * - the data, followed by a newline
+ */
+ fmt.Fprintln(w, name)
+ binary.Write(w, binary.LittleEndian, uint64(len(value)))
+ fmt.Fprintln(w, value)
+ } else {
+ /* just write the variable and value all on one line */
+ fmt.Fprintf(w, "%s=%s\n", name, value)
+ }
+}
+
+// validVarName validates a variable name to make sure it journald will accept it.
+// The variable name must be in uppercase and consist only of characters,
+// numbers and underscores, and may not begin with an underscore. (from the docs)
+// https://www.freedesktop.org/software/systemd/man/sd_journal_print.html
+func validVarName(name string) error {
+ if name == "" {
+ return errors.New("Empty variable name")
+ } else if name[0] == '_' {
+ return errors.New("Variable name begins with an underscore")
+ }
+
+ for _, c := range name {
+ if !(('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_') {
+ return errors.New("Variable name contains invalid characters")
+ }
+ }
+ return nil
+}
+
+func isSocketSpaceError(err error) bool {
+ opErr, ok := err.(*net.OpError)
+ if !ok {
+ return false
+ }
+
+ sysErr, ok := opErr.Err.(syscall.Errno)
+ if !ok {
+ return false
+ }
+
+ return sysErr == syscall.EMSGSIZE || sysErr == syscall.ENOBUFS
+}
+
+func tempFd() (*os.File, error) {
+ file, err := ioutil.TempFile("/dev/shm/", "journal.XXXXX")
+ if err != nil {
+ return nil, err
+ }
+ err = syscall.Unlink(file.Name())
+ if err != nil {
+ return nil, err
+ }
+ return file, nil
+}
+
+func journalError(s string) error {
+ s = "journal error: " + s
+ fmt.Fprintln(os.Stderr, s)
+ return errors.New(s)
+}
diff --git a/vendor/github.com/coreos/go-systemd/util/util.go b/vendor/github.com/coreos/go-systemd/util/util.go
new file mode 100644
index 0000000..7828ce6
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/util/util.go
@@ -0,0 +1,90 @@
+// Copyright 2015 CoreOS, 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
+//
+// 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 util contains utility functions related to systemd that applications
+// can use to check things like whether systemd is running. Note that some of
+// these functions attempt to manually load systemd libraries at runtime rather
+// than linking against them.
+package util
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "strings"
+)
+
+var (
+ ErrNoCGO = fmt.Errorf("go-systemd built with CGO disabled")
+)
+
+// GetRunningSlice attempts to retrieve the name of the systemd slice in which
+// the current process is running.
+// This function is a wrapper around the libsystemd C library; if it cannot be
+// opened, an error is returned.
+func GetRunningSlice() (string, error) {
+ return getRunningSlice()
+}
+
+// RunningFromSystemService tries to detect whether the current process has
+// been invoked from a system service. The condition for this is whether the
+// process is _not_ a user process. User processes are those running in session
+// scopes or under per-user `systemd --user` instances.
+//
+// To avoid false positives on systems without `pam_systemd` (which is
+// responsible for creating user sessions), this function also uses a heuristic
+// to detect whether it's being invoked from a session leader process. This is
+// the case if the current process is executed directly from a service file
+// (e.g. with `ExecStart=/this/cmd`). Note that this heuristic will fail if the
+// command is instead launched in a subshell or similar so that it is not
+// session leader (e.g. `ExecStart=/bin/bash -c "/this/cmd"`)
+//
+// This function is a wrapper around the libsystemd C library; if this is
+// unable to successfully open a handle to the library for any reason (e.g. it
+// cannot be found), an error will be returned.
+func RunningFromSystemService() (bool, error) {
+ return runningFromSystemService()
+}
+
+// CurrentUnitName attempts to retrieve the name of the systemd system unit
+// from which the calling process has been invoked. It wraps the systemd
+// `sd_pid_get_unit` call, with the same caveat: for processes not part of a
+// systemd system unit, this function will return an error.
+func CurrentUnitName() (string, error) {
+ return currentUnitName()
+}
+
+// IsRunningSystemd checks whether the host was booted with systemd as its init
+// system. This functions similarly to systemd's `sd_booted(3)`: internally, it
+// checks whether /run/systemd/system/ exists and is a directory.
+// http://www.freedesktop.org/software/systemd/man/sd_booted.html
+func IsRunningSystemd() bool {
+ fi, err := os.Lstat("/run/systemd/system")
+ if err != nil {
+ return false
+ }
+ return fi.IsDir()
+}
+
+// GetMachineID returns a host's 128-bit machine ID as a string. This functions
+// similarly to systemd's `sd_id128_get_machine`: internally, it simply reads
+// the contents of /etc/machine-id
+// http://www.freedesktop.org/software/systemd/man/sd_id128_get_machine.html
+func GetMachineID() (string, error) {
+ machineID, err := ioutil.ReadFile("/etc/machine-id")
+ if err != nil {
+ return "", fmt.Errorf("failed to read /etc/machine-id: %v", err)
+ }
+ return strings.TrimSpace(string(machineID)), nil
+}
diff --git a/vendor/github.com/coreos/go-systemd/util/util_cgo.go b/vendor/github.com/coreos/go-systemd/util/util_cgo.go
new file mode 100644
index 0000000..6269bc7
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/util/util_cgo.go
@@ -0,0 +1,175 @@
+// Copyright 2016 CoreOS, 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
+//
+// 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 cgo
+
+package util
+
+// #include <stdlib.h>
+// #include <sys/types.h>
+// #include <unistd.h>
+//
+// int
+// my_sd_pid_get_owner_uid(void *f, pid_t pid, uid_t *uid)
+// {
+// int (*sd_pid_get_owner_uid)(pid_t, uid_t *);
+//
+// sd_pid_get_owner_uid = (int (*)(pid_t, uid_t *))f;
+// return sd_pid_get_owner_uid(pid, uid);
+// }
+//
+// int
+// my_sd_pid_get_unit(void *f, pid_t pid, char **unit)
+// {
+// int (*sd_pid_get_unit)(pid_t, char **);
+//
+// sd_pid_get_unit = (int (*)(pid_t, char **))f;
+// return sd_pid_get_unit(pid, unit);
+// }
+//
+// int
+// my_sd_pid_get_slice(void *f, pid_t pid, char **slice)
+// {
+// int (*sd_pid_get_slice)(pid_t, char **);
+//
+// sd_pid_get_slice = (int (*)(pid_t, char **))f;
+// return sd_pid_get_slice(pid, slice);
+// }
+//
+// int
+// am_session_leader()
+// {
+// return (getsid(0) == getpid());
+// }
+import "C"
+import (
+ "fmt"
+ "syscall"
+ "unsafe"
+
+ "github.com/coreos/pkg/dlopen"
+)
+
+var libsystemdNames = []string{
+ // systemd < 209
+ "libsystemd-login.so.0",
+ "libsystemd-login.so",
+
+ // systemd >= 209 merged libsystemd-login into libsystemd proper
+ "libsystemd.so.0",
+ "libsystemd.so",
+}
+
+func getRunningSlice() (slice string, err error) {
+ var h *dlopen.LibHandle
+ h, err = dlopen.GetHandle(libsystemdNames)
+ if err != nil {
+ return
+ }
+ defer func() {
+ if err1 := h.Close(); err1 != nil {
+ err = err1
+ }
+ }()
+
+ sd_pid_get_slice, err := h.GetSymbolPointer("sd_pid_get_slice")
+ if err != nil {
+ return
+ }
+
+ var s string
+ sl := C.CString(s)
+ defer C.free(unsafe.Pointer(sl))
+
+ ret := C.my_sd_pid_get_slice(sd_pid_get_slice, 0, &sl)
+ if ret < 0 {
+ err = fmt.Errorf("error calling sd_pid_get_slice: %v", syscall.Errno(-ret))
+ return
+ }
+
+ return C.GoString(sl), nil
+}
+
+func runningFromSystemService() (ret bool, err error) {
+ var h *dlopen.LibHandle
+ h, err = dlopen.GetHandle(libsystemdNames)
+ if err != nil {
+ return
+ }
+ defer func() {
+ if err1 := h.Close(); err1 != nil {
+ err = err1
+ }
+ }()
+
+ sd_pid_get_owner_uid, err := h.GetSymbolPointer("sd_pid_get_owner_uid")
+ if err != nil {
+ return
+ }
+
+ var uid C.uid_t
+ errno := C.my_sd_pid_get_owner_uid(sd_pid_get_owner_uid, 0, &uid)
+ serrno := syscall.Errno(-errno)
+ // when we're running from a unit file, sd_pid_get_owner_uid returns
+ // ENOENT (systemd <220), ENXIO (systemd 220-223), or ENODATA
+ // (systemd >=234)
+ switch {
+ case errno >= 0:
+ ret = false
+ case serrno == syscall.ENOENT, serrno == syscall.ENXIO, serrno == syscall.ENODATA:
+ // Since the implementation of sessions in systemd relies on
+ // the `pam_systemd` module, using the sd_pid_get_owner_uid
+ // heuristic alone can result in false positives if that module
+ // (or PAM itself) is not present or properly configured on the
+ // system. As such, we also check if we're the session leader,
+ // which should be the case if we're invoked from a unit file,
+ // but not if e.g. we're invoked from the command line from a
+ // user's login session
+ ret = C.am_session_leader() == 1
+ default:
+ err = fmt.Errorf("error calling sd_pid_get_owner_uid: %v", syscall.Errno(-errno))
+ }
+ return
+}
+
+func currentUnitName() (unit string, err error) {
+ var h *dlopen.LibHandle
+ h, err = dlopen.GetHandle(libsystemdNames)
+ if err != nil {
+ return
+ }
+ defer func() {
+ if err1 := h.Close(); err1 != nil {
+ err = err1
+ }
+ }()
+
+ sd_pid_get_unit, err := h.GetSymbolPointer("sd_pid_get_unit")
+ if err != nil {
+ return
+ }
+
+ var s string
+ u := C.CString(s)
+ defer C.free(unsafe.Pointer(u))
+
+ ret := C.my_sd_pid_get_unit(sd_pid_get_unit, 0, &u)
+ if ret < 0 {
+ err = fmt.Errorf("error calling sd_pid_get_unit: %v", syscall.Errno(-ret))
+ return
+ }
+
+ unit = C.GoString(u)
+ return
+}
diff --git a/vendor/github.com/coreos/go-systemd/util/util_stub.go b/vendor/github.com/coreos/go-systemd/util/util_stub.go
new file mode 100644
index 0000000..477589e
--- /dev/null
+++ b/vendor/github.com/coreos/go-systemd/util/util_stub.go
@@ -0,0 +1,23 @@
+// Copyright 2016 CoreOS, 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
+//
+// 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 !cgo
+
+package util
+
+func getRunningSlice() (string, error) { return "", ErrNoCGO }
+
+func runningFromSystemService() (bool, error) { return false, ErrNoCGO }
+
+func currentUnitName() (string, error) { return "", ErrNoCGO }