Add a Vagrantfile and supporting scripts

Generates libvirt nodes according to configuration.

Signed-off-by: Martin Schwenke <martin@meltin.net>

3 files changed, 149 insertions, 0 deletions

diff --git a/vagrant/Vagrantfile b/vagrant/Vagrantfile
new file mode 100644
index 0000000..8bf508b
--- /dev/null
+++ b/vagrant/Vagrantfile
@@ -0,0 +1,114 @@
+# -*- mode: ruby -*-
+# vi: ft=ruby:et:ts=2:sts=2:sw=2
+
+VAGRANTFILE_API_VERSION = "2"
+
+require 'yaml'
+require 'ipaddr'
+require 'resolv'
+require 'securerandom'
+
+f = ENV['AUTOCLUSTER_STATE'] + '/config.yml'
+if File.exists?(f)
+  settings = YAML::load_file f
+
+  puts "Loaded config from #{f}."
+end
+
+def resolvURL(url)
+  u = URI.parse(url)
+  u.host = Resolv.getaddress(u.host)
+  u.to_s
+end
+
+shared_disk_ids = []
+for i in 1..settings['shared_disks']['count']
+  shared_disk_ids[i] = sprintf('AUTO-%02d-', i) + SecureRandom.uuid[0..7]
+end
+
+#
+# The vagrant machine definitions
+#
+
+Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
+
+  if ENV['http_proxy'] or ENV['https_proxy']
+    if Vagrant.has_plugin?("vagrant-proxyconf")
+      if ENV['http_proxy']
+        config.proxy.http = resolvURL(ENV['http_proxy'])
+      end
+      if ENV['http_proxys']
+        config.proxy.https = resolvURL(ENV['http_proxys'])
+      end
+      config.proxy.no_proxy = "localhost,127.0.0.1"
+    end
+  end
+
+  if Vagrant.has_plugin?("vagrant-libvirt")
+    config.vm.provider :libvirt do |libvirt|
+      libvirt.storage_pool_name = "autocluster"
+    end
+  end
+
+  settings['nodes'].each do |hostname, node|
+    config.vm.define hostname do |v|
+      v.vm.box = settings['vagrant_box']
+      v.vm.hostname = hostname
+
+      node['ips'].each do |ip|
+        v.vm.network "private_network",
+                     ip: ip,
+                     nm_controlled: "no"
+      end
+
+      if settings['virthost']
+        virthost = settings['virthost']
+        v.vm.provision "shell",
+                       run: "always",
+                       inline: "route add default gw " + virthost + "|| :"
+      end
+
+      # No shared folders - they might require extra software on the
+      # nodes and installation can time out  :-(
+      v.vm.synced_folder ".", "/vagrant", disabled: true
+
+      v.vm.provision "file",
+                     source: "~/.ssh/id_autocluster",
+                     destination: "~/.ssh/id_autocluster"
+      v.vm.provision "file",
+                     source: "~/.ssh/id_autocluster.pub",
+                     destination: "~/.ssh/id_autocluster.pub"
+      v.vm.provision :shell,
+                     privileged: true,
+                     path: "autocluster_ssh_node_setup.sh"
+
+      v.vm.provider :libvirt do |libvirt|
+
+        libvirt.default_prefix = 'autocluster'
+        libvirt.cpus = settings['cpus']
+        #FIXME: causes an error ### libvirt.memory = settings['memory']
+
+        if node['has_shared_storage']
+          for i in 1..settings['shared_disks']['count']
+            libvirt.storage :file,
+                            :serial => shared_disk_ids[i],
+                            :path => sprintf('autocluster_%s_shared%02d.img',
+                                             settings['cluster'], i),
+                            :size => settings['shared_disks'].size,
+                            :allow_existing => true,
+                            :shareable => true,
+                            :type => 'raw'
+          end
+        end
+      end
+
+      # The libvirt provider sometimes configures a private network
+      # but doesn't bring it up.  Check that all desired IPs are
+      # assigned, failing if any are missing.
+      v.vm.provision "shell",
+                     run: "always",
+                     path: "autocluster_check_ips.sh",
+                     args: node['ips']
+    end
+  end
+end
diff --git a/vagrant/autocluster_check_ips.sh b/vagrant/autocluster_check_ips.sh
new file mode 100755
index 0000000..d6b23cf
--- /dev/null
+++ b/vagrant/autocluster_check_ips.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+for ip ; do
+	out=$(ip addr show to "$ip")
+
+	if [ -z "$out" ] ; then
+		echo "ERROR: ${ip} was not found on an interface"
+		ip addr
+		exit 1
+	fi
+done
diff --git a/vagrant/autocluster_ssh_node_setup.sh b/vagrant/autocluster_ssh_node_setup.sh
new file mode 100644
index 0000000..aeea98a
--- /dev/null
+++ b/vagrant/autocluster_ssh_node_setup.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+set -e
+
+user="vagrant"
+key="id_autocluster"
+
+u_ssh="/home/${user}/.ssh"
+r_ssh="/root/.ssh"
+
+mkdir -p "$r_ssh"
+chmod 700 "$r_ssh"
+cp "${u_ssh}/${key}" "${r_ssh}/"
+cp "${u_ssh}/${key}.pub" "${r_ssh}/"
+cat "${u_ssh}/${key}.pub" >> "${r_ssh}/authorized_keys"
+if selinuxenabled >/dev/null 2>&1 ; then
+	#chcon -t ssh_home_t "${r_ssh}/authorized_keys"
+	restorecon -R "$r_ssh"
+fi
+cat "${u_ssh}/${key}.pub" >> "${u_ssh}/authorized_keys"
+if selinuxenabled >/dev/null 2>&1 ; then
+	#chcon -t ssh_home_t "${u_ssh}/authorized_keys"
+	restorecon -R "$u_ssh"
+fi