From 83f3c2f9219757356974b0a2273ccc158c643336 Mon Sep 17 00:00:00 2001
From: CHOE JUNGYEON <choe.jungyeon@navercorp.com>
Date: Fri, 27 Nov 2015 02:37:50 +0900
Subject: [PATCH] add debug message in dockerDaemonResponding function due to
 helping for troubleshooting of docker daemon state

---
 libmachine/provision/arch.go           | 5 ++++-
 libmachine/provision/debian.go         | 5 ++++-
 libmachine/provision/redhat.go         | 5 ++++-
 libmachine/provision/suse.go           | 5 ++++-
 libmachine/provision/ubuntu_systemd.go | 5 ++++-
 libmachine/provision/ubuntu_upstart.go | 5 ++++-
 6 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/libmachine/provision/arch.go b/libmachine/provision/arch.go
index f9ed56dcf2..959939337f 100644
--- a/libmachine/provision/arch.go
+++ b/libmachine/provision/arch.go
@@ -72,8 +72,11 @@ func (provisioner *ArchProvisioner) Package(name string, action pkgaction.Packag
 }
 
 func (provisioner *ArchProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}
 
diff --git a/libmachine/provision/debian.go b/libmachine/provision/debian.go
index b9babc4ec4..bfca83584e 100644
--- a/libmachine/provision/debian.go
+++ b/libmachine/provision/debian.go
@@ -87,8 +87,11 @@ func (provisioner *DebianProvisioner) Package(name string, action pkgaction.Pack
 }
 
 func (provisioner *DebianProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}
 
diff --git a/libmachine/provision/redhat.go b/libmachine/provision/redhat.go
index a5118db271..55410b9e71 100644
--- a/libmachine/provision/redhat.go
+++ b/libmachine/provision/redhat.go
@@ -136,8 +136,11 @@ func (provisioner *RedHatProvisioner) installOfficialDocker() error {
 }
 
 func (provisioner *RedHatProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}
 
diff --git a/libmachine/provision/suse.go b/libmachine/provision/suse.go
index a9cf3f95c7..aae6f5f7ea 100644
--- a/libmachine/provision/suse.go
+++ b/libmachine/provision/suse.go
@@ -123,8 +123,11 @@ func (provisioner *SUSEProvisioner) Package(name string, action pkgaction.Packag
 }
 
 func (provisioner *SUSEProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}
 
diff --git a/libmachine/provision/ubuntu_systemd.go b/libmachine/provision/ubuntu_systemd.go
index 99a9dd82a5..bc613050a2 100644
--- a/libmachine/provision/ubuntu_systemd.go
+++ b/libmachine/provision/ubuntu_systemd.go
@@ -103,8 +103,11 @@ func (provisioner *UbuntuSystemdProvisioner) Package(name string, action pkgacti
 }
 
 func (provisioner *UbuntuSystemdProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}
 
diff --git a/libmachine/provision/ubuntu_upstart.go b/libmachine/provision/ubuntu_upstart.go
index 95b117ec54..93ea2b3933 100644
--- a/libmachine/provision/ubuntu_upstart.go
+++ b/libmachine/provision/ubuntu_upstart.go
@@ -122,8 +122,11 @@ func (provisioner *UbuntuProvisioner) Package(name string, action pkgaction.Pack
 }
 
 func (provisioner *UbuntuProvisioner) dockerDaemonResponding() bool {
-	if _, err := provisioner.SSHCommand("sudo docker version"); err != nil {
+	log.Debug("checking docker daemon")
+
+	if out, err := provisioner.SSHCommand("sudo docker version"); err != nil {
 		log.Warnf("Error getting SSH command to check if the daemon is up: %s", err)
+		log.Debugf("'sudo docker version' output:\n%s", out)
 		return false
 	}