Class: Kontena::Machine::Upcloud::NodeProvisioner

Inherits:
Object
  • Object
show all
Includes:
RandomName, UpcloudCommon
Defined in:
lib/kontena/machine/upcloud/node_provisioner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from UpcloudCommon

#client, #find_plan, #find_template, #get_server, #zone_exist?

Constructor Details

#initialize(api_client, upcloud_username, upcloud_password) ⇒ NodeProvisioner 



18
19
20
21
22
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 18

def initialize(api_client, upcloud_username, upcloud_password)
  @api_client = api_client
  @username = upcloud_username
  @password = upcloud_password
end

Instance Attribute Details

#api_client ⇒ Object (readonly)

Returns the value of attribute api_client.



13
14
15
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 13

def api_client
  @api_client
end

#password ⇒ Object (readonly)

Returns the value of attribute password.



13
14
15
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 13

def password
  @password
end

#username ⇒ Object (readonly)

Returns the value of attribute username.



13
14
15
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 13

def username
  @username
end

Instance Method Details

#erb(template, vars) ⇒ Object 



108
109
110
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 108

def erb(template, vars)
  ERB.new(template).result(OpenStruct.new(vars).instance_eval { binding })
end

#generate_name ⇒ Object 



100
101
102
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 100

def generate_name
  "#{super}-#{rand(1..99)}"
end

#node_exists_in_grid?(grid, hostname) ⇒ Boolean 



104
105
106
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 104

def node_exists_in_grid?(grid, hostname)
  api_client.get("grids/#{grid}/nodes")['nodes'].find{|n| n['name'] == hostname}
end

#run!(opts) ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 24

def run!(opts)
  if File.readable?(File.expand_path(opts[:ssh_key]))
    ssh_key = File.read(File.expand_path(opts[:ssh_key])).strip
  end

  abort('Invalid ssh key') unless ssh_key && ssh_key.start_with?('ssh-')

  userdata_vars = {
    version: opts[:version],
    master_uri: opts[:master_uri],
    grid_token: opts[:grid_token],
  }

  abort('CoreOS template not found on Upcloud') unless coreos_template = find_template('CoreOS Stable')
  abort('Server plan not found on Upcloud') unless plan = find_plan(opts[:plan])
  abort('Zone not found on Upcloud') unless zone_exist?(opts[:zone])

  hostname = generate_name

  device_data = {
    server: {
      zone: opts[:zone],
      title: "Kontena Grid #{opts[:grid]} Node #{hostname}",
      hostname: hostname,
      plan: plan[:name],
      vnc: 'off',
      timezone: 'UTC',
      user_data: user_data(userdata_vars),
      firewall: 'off',
      storage_devices: {
        storage_device: [
          {
            action: 'clone',
            storage: coreos_template[:uuid],
            title: "From template #{coreos_template[:title]}",
            size: plan[:storage_size],
            tier: 'maxiops'
          }
        ]
      },
      login_user: {
        create_password: 'no',
        username: 'root',
        ssh_keys: {
          ssh_key: [ssh_key]
        }
      }
    }
  }.to_json

  ShellSpinner "Creating Upcloud node #{hostname.colorize(:cyan)} " do
    response = post('server', body: device_data)

    if response.has_key?(:error)
      abort("\nUpcloud server creation failed (#{response[:error].fetch(:error_message, '')})")
    end
    device_data = response[:server]

    until device_data && device_data.fetch(:state, nil).to_s == 'maintenance'
      device_data = get("server/#{device[:uuid]}").fetch(:server, {}) rescue nil
      sleep 5
    end
  end

  node = nil
  ShellSpinner "Waiting for node #{hostname.colorize(:cyan)} join to grid #{opts[:grid].colorize(:cyan)} " do
    sleep 2 until node = node_exists_in_grid?(opts[:grid], hostname)
  end
  set_labels(node, ["region=#{opts[:zone]}", "provider=upcloud"])
end

#set_labels(node, labels) ⇒ Object 



112
113
114
115
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 112

def set_labels(node, labels)
  data = {labels: labels}
  api_client.put("nodes/#{node['id']}", data, {}, {'Kontena-Grid-Token' => node['grid']['token']})
end

#user_data(vars) ⇒ Object 



95
96
97
98
 
# File 'lib/kontena/machine/upcloud/node_provisioner.rb', line 95

def user_data(vars)
  cloudinit_template = File.join(__dir__ , '/cloudinit.yml')
  erb(File.read(cloudinit_template), vars)
end