1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
# GOV.UK Mini Environment Admin
# Copyright © 2018 Christopher Baines <mail@cbaines.net>
#
# This file is part of the GOV.UK Mini Environment Admin.
#
# The GOV.UK Mini Environment Admin is free software: you can
# redistribute it and/or modify it under the terms of the GNU Affero
# General Public License as published by the Free Software Foundation,
# either version 3 of the License, or (at your option) any later
# version.
#
# The GOV.UK Mini Environment Admin is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with the GOV.UK Mini Environment Admin. If not, see
# <http://www.gnu.org/licenses/>.
# == Schema Information
#
# Table name: terraform_libvirt_backends
#
# id :integer not null, primary key
# label :string
# uri :string
# created_at :datetime not null
# updated_at :datetime not null
# domain :string
#
require 'ruby_terraform'
class Backends::TerraformLibvirt < ApplicationRecord
has_many :mini_environments, as: :backend
self.table_name = 'terraform_libvirt_backends'
def self.label
'libvirt'
end
def type_and_id
"#{self.class.name}=#{id}"
end
def build(mini_environment)
slug = mini_environment.name.parameterize
GovukGuix::BuildJob.enqueue(
mini_environment.id,
services: mini_environment.services.map(&:build_argument_string),
arguments: {
type: 'vm-image-and-system',
app_domain: "#{slug}.#{domain}",
web_domain: "www.#{slug}.#{domain}",
# Assume that this is a local environment, and not externally
# accessible
use_https: 'development',
http_ports_mode: 'standard',
host_name: "#{slug}.#{domain}",
admin_environment_label: mini_environment.name,
signon_instance_name: slug,
use_error_pages: 'true',
origin_basic_auth: "#{slug}=#{slug}",
data_snapshot: mini_environment.data_snapshot.try(:store_path)
}.compact
)
end
def start(mini_environment)
logger.info "Setting up #{mini_environment.name}"
within_terraform_working_directory(mini_environment) do
RubyTerraform.apply(
vars: terraform_variables(mini_environment),
auto_approve: true
)
end
end
def destroy(mini_environment)
within_terraform_working_directory(mini_environment) do
RubyTerraform.destroy(
vars: terraform_variables(mini_environment),
force: true
)
end
end
def deploy_backend
TerraformWorkingDirectory.new(
terraform_state_id,
'terraform/libvirt/backend'
).within_working_directory do
RubyTerraform.apply(
vars: {
uri: uri,
domain: domain
},
auto_approve: true
)
end
end
def available_data_snapshots
GovukGuix::DataSnapshot.where(backend: nil)
end
def terraform_state_id
"backend/terraform_libvirt/#{id}"
end
def within_terraform_working_directory(mini_environment, &block)
TerraformWorkingDirectory.new(
"mini_environment/#{mini_environment.id}",
'terraform/libvirt/mini_environment'
).within_working_directory(&block)
end
def signon_url(mini_environment)
"https://signon.#{mini_environment.name.parameterize}.#{domain}"
end
def terraform_variables(mini_environment)
slug = mini_environment.name.parameterize
{
uri: uri,
machine_name: slug,
host_name: "#{slug}.#{domain}",
vm_image_and_system: mini_environment.backend_data['build_output'],
backend_remote_state_address: (
'http://localhost:3000' +
Rails
.application
.routes
.url_helpers
.terraform_http_backend_path(terraform_state_id)
)
}
end
end
|