CI: switch testing to DigitalOcean

Reasons:
 - Azure does not provide any cost savings (min amount is 0,01€ - same
for DO)
 - DO has much more faster spawn times for VMS (10 secs vs 3-5 mins)
 - DO VMs are much more performant for the same costs

.kitchen.do.yml

@@ -0,0 +1,37 @@
+# this file is used for configuration of DigitalOcean
+# for integration tests in the CI
+---
+driver:
+  name: digitalocean
+  size: s-1vcpu-1gb
+  region: nyc3
+
+transport:
+  ssh_key: '~/.ssh/ci_id_rsa'
+  max_wait_until_ready: 30
+
+platforms:
+- name: ubuntu-14-04
+  driver_config:
+    image: ubuntu-14-04-x64
+- name: ubuntu-16-04
+  driver_config:
+    image: ubuntu-16-04-x64
+- name: centos-6
+  driver_config:
+    image: centos-6-x64
+- name: centos-7
+  driver_config:
+    image: centos-7-x64
+- name: debian-7
+  driver_config:
+    image: debian-7-x64
+- name: debian-8
+  driver_config:
+    image: debian-8-x64
+- name: fedora-26
+  driver_config:
+    image: fedora-26-x64
+- name: fedora-27
+  driver_config:
+    image: fedora-27-x64

.travis.yml

@@ -10,32 +10,21 @@ env:
  - INSTANCE=ubuntu-16-04
  - INSTANCE=centos-6
  - INSTANCE=centos-7
- - INSTANCE=oracle-6
- - INSTANCE=oracle-7
- - INSTANCE=rhel-6
- - INSTANCE=rhel-7
- - INSTANCE=debian-6
  - INSTANCE=debian-7
- - INSTANCE=opensuse-leap-42
- - INSTANCE=sles-11
- - INSTANCE=sles-12
+ - INSTANCE=debian-8
+ - INSTANCE=fedora-26
+ - INSTANCE=fedora-27
 
 matrix:
   allow_failures: # allow failues of integration tests as the forks might miss the DO token
   - env: INSTANCE=ubuntu-14-04
   - env: INSTANCE=ubuntu-16-04
   - env: INSTANCE=centos-6
   - env: INSTANCE=centos-7
-  - env: INSTANCE=oracle-6
-  - env: INSTANCE=oracle-7
-  - env: INSTANCE=rhel-6
-  - env: INSTANCE=rhel-7
-  - env: INSTANCE=debian-6
   - env: INSTANCE=debian-7
-  - env: INSTANCE=opensuse-leap-42
-  - env: INSTANCE=sles-11
-  - env: INSTANCE=sles-12
+  - env: INSTANCE=debian-8
+  - env: INSTANCE=fedora-26
+  - env: INSTANCE=fedora-27
 
 script:
-  -  bundle exec rake prepare_do_env kitchen KITCHEN_LOCAL_YAML=.kitchen.azure.yml
-
+  -  bundle exec rake prepare_do_env kitchen KITCHEN_LOCAL_YAML=.kitchen.do.yml

Gemfile

@@ -23,7 +23,7 @@ group :development do
 end
 
 group :integration do
-  gem 'kitchen-azurerm'
+  gem 'kitchen-digitalocean'
   gem 'kitchen-inspec'
   gem 'kitchen-puppet'
   gem 'kitchen-vagrant'
@@ -33,4 +33,4 @@ end
 
 group :tools do
   gem 'github_changelog_generator', '~> 1.14'
-end
+end

Rakefile

@@ -55,8 +55,7 @@ task :prepare_do_env do
   SSH_KEY_FILE = '~/.ssh/ci_id_rsa'.freeze
   ENV_VAR_NAME = 'CI_SSH_KEY'.freeze
 
-  ['AZURE_SUBSCRIPTION_ID', 'AZURE_CLIENT_ID', 'AZURE_CLIENT_SECRET',
-   'AZURE_TENANT_ID', ENV_VAR_NAME].each do |var|
+  ['DIGITALOCEAN_ACCESS_TOKEN', 'DIGITALOCEAN_SSH_KEY_IDS', ENV_VAR_NAME].each do |var|
     raise "Environment variable #{var} should be set" unless ENV[var]
   end
 
@@ -65,7 +64,4 @@ task :prepare_do_env do
   Dir.mkdir(dir, 0o700) unless Dir.exist?(dir)
   File.open(ssh_file, 'w') { |f| f.puts Base64.decode64(ENV[ENV_VAR_NAME]) }
   File.chmod(0o600, ssh_file)
-
-  # azure requires also a public key file, lets generate it
-  sh "ssh-keygen -y -f #{SSH_KEY_FILE} > #{SSH_KEY_FILE}.pub"
 end