8 if not ip_forwarding_enabled?
9 warn "NOTE: IP forwarding must be enabled in the kernel."
10 warn "Turning IP forwarding on now."
11 sudo %w(/sbin/sysctl net.ipv4.ip_forward=1)
15 # * Docker is installed and can be found in the user's path
16 # * Docker can be run as a non-root user
17 # - TODO: put the user is in the docker group if necessary
18 # - TODO: mount cgroup automatically
19 # - TODO: start the docker service if not started
21 docker_path = %x(which docker).chomp
23 warn "Docker not found."
25 warn "Please make sure that Docker has been installed and"
26 warn "can be found in your PATH."
28 warn "Installation instructions for a variety of platforms can be found at"
29 warn "http://docs.docker.io/en/latest/installation/"
32 warn "WARNING: docker could not be run."
33 warn "Please make sure that:"
34 warn " * You have permission to read and write /var/run/docker.sock"
35 warn " * a 'cgroup' volume is mounted on your machine"
36 warn " * the docker daemon is running"
40 # Check that debootstrap is installed.
41 if not debootstrap_ok?
42 warn "Installing debootstrap."
43 sudo '/usr/bin/apt-get', 'install', 'debootstrap'
46 # Generate a config.yml if it does not exist or is empty
47 if not File.size? 'config.yml'
48 print "Generating config.yml.\n"
49 print "Arvados needs to know the email address of the administrative user,\n"
50 print "so that when that user logs in they are automatically made an admin.\n"
51 print "This should be the email address you use to log in to Google.\n"
53 admin_email_address = ""
54 until is_valid_email? admin_email_address
55 print "Enter your Google ID email address here: "
56 admin_email_address = gets.strip
57 if not is_valid_email? admin_email_address
58 print "That doesn't look like a valid email address. Please try again.\n"
62 File.open 'config.yml', 'w' do |config_out|
63 config = YAML.load_file 'config.yml.example'
64 config['API_AUTO_ADMIN_USER'] = admin_email_address
65 config['API_HOSTNAME'] = generate_api_hostname
66 config['PUBLIC_KEY_PATH'] = find_or_create_ssh_key(config['API_HOSTNAME'])
67 config.each_key do |var|
68 if var.end_with?('_PW') or var.end_with?('_SECRET')
69 config[var] = rand(2**256).to_s(36)
71 config_out.write "#{var}: #{config[var]}\n"
76 # If all prerequisites are met, go ahead and build.
77 if ip_forwarding_enabled? and
80 File.exists? 'config.yml'
81 warn "Building Arvados."
82 system '/usr/bin/make', '-f', options[:makefile], *ARGV
87 # Execute the arg list 'cmd' under sudo.
88 # cmd can be passed either as a series of arguments or as a
89 # single argument consisting of a list, e.g.:
90 # sudo 'apt-get', 'update'
91 # sudo(['/usr/bin/gpasswd', '-a', ENV['USER'], 'docker'])
92 # sudo %w(/usr/bin/apt-get install lxc-docker)
95 # user can pass a single list in as an argument
96 # to allow usage like: sudo %w(apt-get install foo)
97 warn "You may need to enter your password here."
98 if cmd.length == 1 and cmd[0].class == Array
101 system '/usr/bin/sudo', *cmd
105 # Returns true if its arg looks like a valid email address.
106 # This is a very very loose sanity check.
108 def is_valid_email? str
109 str.match /^\S+@\S+\.\S+$/
112 # generate_api_hostname
113 # Generates a 5-character randomly chosen API hostname.
115 def generate_api_hostname
116 rand(2**256).to_s(36)[0...5]
119 # ip_forwarding_enabled?
120 # Returns 'true' if IP forwarding is enabled in the kernel
122 def ip_forwarding_enabled?
123 %x(/sbin/sysctl -n net.ipv4.ip_forward) == "1\n"
127 # Returns 'true' if debootstrap is installed and working.
130 return system '/usr/sbin/debootstrap --version > /dev/null 2>&1'
134 # Returns 'true' if docker can be run as the current user.
137 return system 'docker images > /dev/null 2>&1'
140 # find_or_create_ssh_key arvados_name
141 # Returns the SSH public key appropriate for this Arvados instance,
142 # generating one if necessary.
144 def find_or_create_ssh_key arvados_name
145 ssh_key_file = "#{ENV['HOME']}/.ssh/arvados_#{arvados_name}_id_rsa"
146 unless File.exists? ssh_key_file
149 '-C', "arvados@#{arvados_name}",
153 return "#{ssh_key_file}.pub"
157 # Determines which Docker package is suitable for this Linux distro
158 # and installs it, resolving any dependencies.
159 # NOTE: not in use yet.
162 linux_distro = %x(lsb_release --id).split.last
163 linux_release = %x(lsb_release --release).split.last
164 linux_version = linux_distro + " " + linux_release
165 kernel_release = `uname -r`
169 if not linux_release.match '^1[234]\.'
170 warn "Arvados requires at least Ubuntu 12.04 (Precise Pangolin)."
171 warn "Your system is Ubuntu #{linux_release}."
174 if linux_release.match '^12' and kernel_release.start_with? '3.2'
175 # Ubuntu Precise ships with a 3.2 kernel and must be upgraded.
176 warn "Your kernel #{kernel_release} must be upgraded to run Docker."
178 warn " sudo apt-get update"
179 warn " sudo apt-get install linux-image-generic-lts-raring linux-headers-generic-lts-raring"
184 sudo 'apt-get', 'update'
185 sudo 'apt-get', 'install', "linux-image-extra-#{kernel_release}"
188 # add Docker repository
189 sudo %w(/usr/bin/apt-key adv
190 --keyserver keyserver.ubuntu.com
191 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9)
192 source_file = Tempfile.new('arv')
193 source_file.write("deb http://get.docker.io/ubuntu docker main\n")
195 sudo '/bin/mv', source_file.path, '/etc/apt/sources.list.d/docker.list'
196 sudo %w(/usr/bin/apt-get update)
197 sudo %w(/usr/bin/apt-get install lxc-docker)
199 # Set up for non-root access
200 sudo %w(/usr/sbin/groupadd docker)
201 sudo '/usr/bin/gpasswd', '-a', ENV['USER'], 'docker'
202 sudo %w(/usr/sbin/service docker restart)
205 warn "Must be running a Debian or Ubuntu release in order to run Docker."
211 if __FILE__ == $PROGRAM_NAME
212 options = { :makefile => File.join(File.dirname(__FILE__), 'Makefile') }
213 OptionParser.new do |opts|
214 opts.on('-m', '--makefile MAKEFILE-PATH',
215 'Path to the Makefile used to build Arvados Docker images') do |mk|
216 options[:makefile] = mk