1. docker
  2. Commit 568a9703acff16426965c9fef20c2dd5c6ba9098
Browse code

Wrap installer in a function

This will assure that the install script will not
begin executing until after it has been downloaded should
it be utilized in a 'curl | bash' workflow.

Signed-off-by: Eric Windisch <eric@windisch.us>
(cherry picked from commit fa961ce0463ebd738da875c3a6da8171373d7723)

Eric Windisch authored on 2015/04/10 02:55:26
Showing 1 changed files
hack/install.sh
History View file @ 568a970
... ... 
@@ -20,213 +20,216 @@ command_exists() {
20 20 
 	command -v "$@" > /dev/null 2>&1
21 21 
 }
22 22
23 
-case "$(uname -m)" in
24 
-	*64)
25 
-		;;
26 
-	*)
27 
-		echo >&2 'Error: you are not using a 64bit platform.'
28 
-		echo >&2 'Docker currently only supports 64bit platforms.'
29 
-		exit 1
30 
-		;;
31 
-esac
32 
-
33 
-if command_exists docker || command_exists lxc-docker; then
34 
-	echo >&2 'Warning: "docker" or "lxc-docker" command appears to already exist.'
35 
-	echo >&2 'Please ensure that you do not already have docker installed.'
36 
-	echo >&2 'You may press Ctrl+C now to abort this process and rectify this situation.'
37 
-	( set -x; sleep 20 )
38 
-fi
39 
-
40 
-user="$(id -un 2>/dev/null || true)"
41 
-
42 
-sh_c='sh -c'
43 
-if [ "$user" != 'root' ]; then
44 
-	if command_exists sudo; then
45 
-		sh_c='sudo -E sh -c'
46 
-	elif command_exists su; then
47 
-		sh_c='su -c'
48 
-	else
49 
-		echo >&2 'Error: this installer needs the ability to run commands as root.'
50 
-		echo >&2 'We are unable to find either "sudo" or "su" available to make this happen.'
51 
-		exit 1
23 
+do_docker_install() {
24 
+	case "$(uname -m)" in
25 
+		*64)
26 
+			;;
27 
+		*)
28 
+			echo >&2 'Error: you are not using a 64bit platform.'
29 
+			echo >&2 'Docker currently only supports 64bit platforms.'
30 
+			exit 1
31 
+			;;
32 
+	esac
33 
+
34 
+	if command_exists docker || command_exists lxc-docker; then
35 
+		echo >&2 'Warning: "docker" or "lxc-docker" command appears to already exist.'
36 
+		echo >&2 'Please ensure that you do not already have docker installed.'
37 
+		echo >&2 'You may press Ctrl+C now to abort this process and rectify this situation.'
38 
+		( set -x; sleep 20 )
52 39 
 	fi
53 
-fi
54 
-
55 
-curl=''
56 
-if command_exists curl; then
57 
-	curl='curl -sSL'
58 
-elif command_exists wget; then
59 
-	curl='wget -qO-'
60 
-elif command_exists busybox && busybox --list-modules | grep -q wget; then
61 
-	curl='busybox wget -qO-'
62 
-fi
63 
-
64 
-# perform some very rudimentary platform detection
65 
-lsb_dist=''
66 
-if command_exists lsb_release; then
67 
-	lsb_dist="$(lsb_release -si)"
68 
-fi
69 
-if [ -z "$lsb_dist" ] && [ -r /etc/lsb-release ]; then
70 
-	lsb_dist="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
71 
-fi
72 
-if [ -z "$lsb_dist" ] && [ -r /etc/debian_version ]; then
73 
-	lsb_dist='debian'
74 
-fi
75 
-if [ -z "$lsb_dist" ] && [ -r /etc/fedora-release ]; then
76 
-	lsb_dist='fedora'
77 
-fi
78 
-if [ -z "$lsb_dist" ] && [ -r /etc/os-release ]; then
79 
-	lsb_dist="$(. /etc/os-release && echo "$ID")"
80 
-fi
81 
-
82 
-lsb_dist="$(echo "$lsb_dist" | tr '[:upper:]' '[:lower:]')"
83 
-case "$lsb_dist" in
84 
-	amzn|fedora|centos)
85 
-		if [ "$lsb_dist" = 'amzn' ]; then
86 
-			(
87 
-				set -x
88 
-				$sh_c 'sleep 3; yum -y -q install docker'
89 
-			)
40 
+
41 
+	user="$(id -un 2>/dev/null || true)"
42 
+
43 
+	sh_c='sh -c'
44 
+	if [ "$user" != 'root' ]; then
45 
+		if command_exists sudo; then
46 
+			sh_c='sudo -E sh -c'
47 
+		elif command_exists su; then
48 
+			sh_c='su -c'
90 49 
 		else
91 
-			(
92 
-				set -x
93 
-				$sh_c 'sleep 3; yum -y -q install docker-io'
94 
-			)
95 
-		fi
96 
-		if command_exists docker && [ -e /var/run/docker.sock ]; then
97 
-			(
98 
-				set -x
99 
-				$sh_c 'docker version'
100 
-			) || true
50 
+			echo >&2 'Error: this installer needs the ability to run commands as root.'
51 
+			echo >&2 'We are unable to find either "sudo" or "su" available to make this happen.'
52 
+			exit 1
101 53 
 		fi
102 
-		your_user=your-user
103 
-		[ "$user" != 'root' ] && your_user="$user"
104 
-		echo
105 
-		echo 'If you would like to use Docker as a non-root user, you should now consider'
106 
-		echo 'adding your user to the "docker" group with something like:'
107 
-		echo
108 
-		echo '  sudo usermod -aG docker' $your_user
109 
-		echo
110 
-		echo 'Remember that you will have to log out and back in for this to take effect!'
111 
-		echo
112 
-		exit 0
113 
-		;;
114 
-
115 
-	ubuntu|debian|linuxmint)
116 
-		export DEBIAN_FRONTEND=noninteractive
117 
-
118 
-		did_apt_get_update=
119 
-		apt_get_update() {
120 
-			if [ -z "$did_apt_get_update" ]; then
121 
-				( set -x; $sh_c 'sleep 3; apt-get update' )
122 
-				did_apt_get_update=1
123 
-			fi
124 
-		}
54 
+	fi
125 55
126 
-		# aufs is preferred over devicemapper; try to ensure the driver is available.
127 
-		if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then
128 
-			if uname -r | grep -q -- '-generic' && dpkg -l 'linux-image-*-generic' | grep -q '^ii' 2>/dev/null; then
129 
-				kern_extras="linux-image-extra-$(uname -r) linux-image-extra-virtual"
56 
+	curl=''
57 
+	if command_exists curl; then
58 
+		curl='curl -sSL'
59 
+	elif command_exists wget; then
60 
+		curl='wget -qO-'
61 
+	elif command_exists busybox && busybox --list-modules | grep -q wget; then
62 
+		curl='busybox wget -qO-'
63 
+	fi
130 64
131 
-				apt_get_update
132 
-				( set -x; $sh_c 'sleep 3; apt-get install -y -q '"$kern_extras" ) || true
65 
+	# perform some very rudimentary platform detection
66 
+	lsb_dist=''
67 
+	if command_exists lsb_release; then
68 
+		lsb_dist="$(lsb_release -si)"
69 
+	fi
70 
+	if [ -z "$lsb_dist" ] && [ -r /etc/lsb-release ]; then
71 
+		lsb_dist="$(. /etc/lsb-release && echo "$DISTRIB_ID")"
72 
+	fi
73 
+	if [ -z "$lsb_dist" ] && [ -r /etc/debian_version ]; then
74 
+		lsb_dist='debian'
75 
+	fi
76 
+	if [ -z "$lsb_dist" ] && [ -r /etc/fedora-release ]; then
77 
+		lsb_dist='fedora'
78 
+	fi
79 
+	if [ -z "$lsb_dist" ] && [ -r /etc/os-release ]; then
80 
+		lsb_dist="$(. /etc/os-release && echo "$ID")"
81 
+	fi
133 82
134 
-				if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then
135 
-					echo >&2 'Warning: tried to install '"$kern_extras"' (for AUFS)'
136 
-					echo >&2 ' but we still have no AUFS.  Docker may not work. Proceeding anyways!'
83 
+	lsb_dist="$(echo "$lsb_dist" | tr '[:upper:]' '[:lower:]')"
84 
+	case "$lsb_dist" in
85 
+		amzn|fedora|centos)
86 
+			if [ "$lsb_dist" = 'amzn' ]; then
87 
+				(
88 
+					set -x
89 
+					$sh_c 'sleep 3; yum -y -q install docker'
90 
+				)
91 
+			else
92 
+				(
93 
+					set -x
94 
+					$sh_c 'sleep 3; yum -y -q install docker-io'
95 
+				)
96 
+			fi
97 
+			if command_exists docker && [ -e /var/run/docker.sock ]; then
98 
+				(
99 
+					set -x
100 
+					$sh_c 'docker version'
101 
+				) || true
102 
+			fi
103 
+			your_user=your-user
104 
+			[ "$user" != 'root' ] && your_user="$user"
105 
+			echo
106 
+			echo 'If you would like to use Docker as a non-root user, you should now consider'
107 
+			echo 'adding your user to the "docker" group with something like:'
108 
+			echo
109 
+			echo '  sudo usermod -aG docker' $your_user
110 
+			echo
111 
+			echo 'Remember that you will have to log out and back in for this to take effect!'
112 
+			echo
113 
+			exit 0
114 
+			;;
115 
+
116 
+		ubuntu|debian|linuxmint)
117 
+			export DEBIAN_FRONTEND=noninteractive
118 
+
119 
+			did_apt_get_update=
120 
+			apt_get_update() {
121 
+				if [ -z "$did_apt_get_update" ]; then
122 
+					( set -x; $sh_c 'sleep 3; apt-get update' )
123 
+					did_apt_get_update=1
124 
+				fi
125 
+			}
126 
+
127 
+			# aufs is preferred over devicemapper; try to ensure the driver is available.
128 
+			if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then
129 
+				if uname -r | grep -q -- '-generic' && dpkg -l 'linux-image-*-generic' | grep -q '^ii' 2>/dev/null; then
130 
+					kern_extras="linux-image-extra-$(uname -r) linux-image-extra-virtual"
131 
+
132 
+					apt_get_update
133 
+					( set -x; $sh_c 'sleep 3; apt-get install -y -q '"$kern_extras" ) || true
134 
+
135 
+					if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then
136 
+						echo >&2 'Warning: tried to install '"$kern_extras"' (for AUFS)'
137 
+						echo >&2 ' but we still have no AUFS.  Docker may not work. Proceeding anyways!'
138 
+						( set -x; sleep 10 )
139 
+					fi
140 
+				else
141 
+					echo >&2 'Warning: current kernel is not supported by the linux-image-extra-virtual'
142 
+					echo >&2 ' package.  We have no AUFS support.  Consider installing the packages'
143 
+					echo >&2 ' linux-image-virtual kernel and linux-image-extra-virtual for AUFS support.'
137 144 
 					( set -x; sleep 10 )
138 145 
 				fi
139 
-			else
140 
-				echo >&2 'Warning: current kernel is not supported by the linux-image-extra-virtual'
141 
-				echo >&2 ' package.  We have no AUFS support.  Consider installing the packages'
142 
-				echo >&2 ' linux-image-virtual kernel and linux-image-extra-virtual for AUFS support.'
143 
-				( set -x; sleep 10 )
144 146 
 			fi
145 
-		fi
146 147
147 
-		# install apparmor utils if they're missing and apparmor is enabled in the kernel
148 
-		# otherwise Docker will fail to start
149 
-		if [ "$(cat /sys/module/apparmor/parameters/enabled 2>/dev/null)" = 'Y' ]; then
150 
-			if command -v apparmor_parser &> /dev/null; then
151 
-				echo 'apparmor is enabled in the kernel and apparmor utils were already installed'
152 
-			else
153 
-				echo 'apparmor is enabled in the kernel, but apparmor_parser missing'
154 
-				apt_get_update
155 
-				( set -x; $sh_c 'sleep 3; apt-get install -y -q apparmor' )
148 
+			# install apparmor utils if they're missing and apparmor is enabled in the kernel
149 
+			# otherwise Docker will fail to start
150 
+			if [ "$(cat /sys/module/apparmor/parameters/enabled 2>/dev/null)" = 'Y' ]; then
151 
+				if command -v apparmor_parser &> /dev/null; then
152 
+					echo 'apparmor is enabled in the kernel and apparmor utils were already installed'
153 
+				else
154 
+					echo 'apparmor is enabled in the kernel, but apparmor_parser missing'
155 
+					apt_get_update
156 
+					( set -x; $sh_c 'sleep 3; apt-get install -y -q apparmor' )
157 
+				fi
156 158 
 			fi
157 
-		fi
158 159
159 
-		if [ ! -e /usr/lib/apt/methods/https ]; then
160 
-			apt_get_update
161 
-			( set -x; $sh_c 'sleep 3; apt-get install -y -q apt-transport-https ca-certificates' )
162 
-		fi
163 
-		if [ -z "$curl" ]; then
164 
-			apt_get_update
165 
-			( set -x; $sh_c 'sleep 3; apt-get install -y -q curl ca-certificates' )
166 
-			curl='curl -sSL'
167 
-		fi
168 
-		(
169 
-			set -x
170 
-			if [ "https://get.docker.com/" = "$url" ]; then
171 
-				$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9"
172 
-			elif [ "https://test.docker.com/" = "$url" ]; then
173 
-				$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 740B314AE3941731B942C66ADF4FD13717AAD7D6"
174 
-			else
175 
-				$sh_c "$curl ${url}gpg | apt-key add -"
160 
+			if [ ! -e /usr/lib/apt/methods/https ]; then
161 
+				apt_get_update
162 
+				( set -x; $sh_c 'sleep 3; apt-get install -y -q apt-transport-https ca-certificates' )
163 
+			fi
164 
+			if [ -z "$curl" ]; then
165 
+				apt_get_update
166 
+				( set -x; $sh_c 'sleep 3; apt-get install -y -q curl ca-certificates' )
167 
+				curl='curl -sSL'
176 168 
 			fi
177 
-			$sh_c "echo deb ${url}ubuntu docker main > /etc/apt/sources.list.d/docker.list"
178 
-			$sh_c 'sleep 3; apt-get update; apt-get install -y -q lxc-docker'
179 
-		)
180 
-		if command_exists docker && [ -e /var/run/docker.sock ]; then
181 169 
 			(
182 170 
 				set -x
183 
-				$sh_c 'docker version'
184 
-			) || true
185 
-		fi
186 
-		your_user=your-user
187 
-		[ "$user" != 'root' ] && your_user="$user"
188 
-		echo
189 
-		echo 'If you would like to use Docker as a non-root user, you should now consider'
190 
-		echo 'adding your user to the "docker" group with something like:'
191 
-		echo
192 
-		echo '  sudo usermod -aG docker' $your_user
193 
-		echo
194 
-		echo 'Remember that you will have to log out and back in for this to take effect!'
195 
-		echo
196 
-		exit 0
197 
-		;;
198 
-
199 
-	gentoo)
200 
-		if [ "$url" = "https://test.docker.com/" ]; then
201 
-			echo >&2
202 
-			echo >&2 '  You appear to be trying to install the latest nightly build in Gentoo.'
203 
-			echo >&2 '  The portage tree should contain the latest stable release of Docker, but'
204 
-			echo >&2 '  if you want something more recent, you can always use the live ebuild'
205 
-			echo >&2 '  provided in the "docker" overlay available via layman.  For more'
206 
-			echo >&2 '  instructions, please see the following URL:'
207 
-			echo >&2 '    https://github.com/tianon/docker-overlay#using-this-overlay'
208 
-			echo >&2 '  After adding the "docker" overlay, you should be able to:'
209 
-			echo >&2 '    emerge -av =app-emulation/docker-9999'
210 
-			echo >&2
211 
-			exit 1
212 
-		fi
213 
-
214 
-		(
215 
-			set -x
216 
-			$sh_c 'sleep 3; emerge app-emulation/docker'
217 
-		)
218 
-		exit 0
219 
-		;;
220 
-esac
221 
-
222 
-cat >&2 <<'EOF'
223 
-
224 
-  Either your platform is not easily detectable, is not supported by this
225 
-  installer script (yet - PRs welcome! [hack/install.sh]), or does not yet have
226 
-  a package for Docker.  Please visit the following URL for more detailed
227 
-  installation instructions:
171 
+				if [ "https://get.docker.com/" = "$url" ]; then
172 
+					$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9"
173 
+				elif [ "https://test.docker.com/" = "$url" ]; then
174 
+					$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 740B314AE3941731B942C66ADF4FD13717AAD7D6"
175 
+				else
176 
+					$sh_c "$curl ${url}gpg | apt-key add -"
177 
+				fi
178 
+				$sh_c "echo deb ${url}ubuntu docker main > /etc/apt/sources.list.d/docker.list"
179 
+				$sh_c 'sleep 3; apt-get update; apt-get install -y -q lxc-docker'
180 
+			)
181 
+			if command_exists docker && [ -e /var/run/docker.sock ]; then
182 
+				(
183 
+					set -x
184 
+					$sh_c 'docker version'
185 
+				) || true
186 
+			fi
187 
+			your_user=your-user
188 
+			[ "$user" != 'root' ] && your_user="$user"
189 
+			echo
190 
+			echo 'If you would like to use Docker as a non-root user, you should now consider'
191 
+			echo 'adding your user to the "docker" group with something like:'
192 
+			echo
193 
+			echo '  sudo usermod -aG docker' $your_user
194 
+			echo
195 
+			echo 'Remember that you will have to log out and back in for this to take effect!'
196 
+			echo
197 
+			exit 0
198 
+			;;
199 
+
200 
+		gentoo)
201 
+			if [ "$url" = "https://test.docker.com/" ]; then
202 
+				echo >&2
203 
+				echo >&2 '  You appear to be trying to install the latest nightly build in Gentoo.'
204 
+				echo >&2 '  The portage tree should contain the latest stable release of Docker, but'
205 
+				echo >&2 '  if you want something more recent, you can always use the live ebuild'
206 
+				echo >&2 '  provided in the "docker" overlay available via layman.  For more'
207 
+				echo >&2 '  instructions, please see the following URL:'
208 
+				echo >&2 '	https://github.com/tianon/docker-overlay#using-this-overlay'
209 
+				echo >&2 '  After adding the "docker" overlay, you should be able to:'
210 
+				echo >&2 '	emerge -av =app-emulation/docker-9999'
211 
+				echo >&2
212 
+				exit 1
213 
+			fi
228 214
229 
-    https://docs.docker.com/en/latest/installation/
215 
+			(
216 
+				set -x
217 
+				$sh_c 'sleep 3; emerge app-emulation/docker'
218 
+			)
219 
+			exit 0
220 
+			;;
221 
+	esac
222 
+
223 
+	echo >&2
224 
+	echo >&2 'Either your platform is not easily detectable, is not supported by this'
225 
+	echo >&2 'installer script (yet - PRs welcome! [hack/install.sh]), or does not yet have'
226 
+	echo >&2 'a package for Docker.  Please visit the following URL for more detailed'
227 
+	echo >&2 'installation instructions:'
228 
+	echo >&2
229 
+	echo >&2 ' https://docs.docker.com/en/latest/installation/'
230 
+	echo >&2
231 
+    exit 1
232 
+}
230 233
231 
-EOF
234 
+do_docker_install
232 235 
 exit 1