Beginners guide to at #phpworld

Transcription

1 Beginners guide to deployments at #phpworld

2 Let s talk deployment

3 Your deploys should be as boring, straightforward, and stress-free as possible. - Zach Holman (

4 How do you deploy?

5 Edit on the server?

6 FTP?

7 git pull?

8 Third party deployment?

9 Deployment script?

10 OS packages?

11 These are all valid ways to deploy

12 Deployment for beginners

13 Your deploys should be as boring, straightforward, and stress-free as possible. - Zach Holman (

14 1. What is a deployment? 2. Option A: External tools 3. Option B: Internal tools 4. Option C: System packages 5. Option D: Blue / Green deployments 6. Option E: Immutable infrastructure 7. Deployment techniques 8. Summary

15 What is a deployment?

16 Code

17 Dependencies

18 Configuration

19 Database Migrations

20 Other Migrations

21 Assets

22 Post Install Tasks

23 We re aiming for

24 Your deploys should be as boring, straightforward, and stress-free as possible. - Zach Holman (

25 Our Codebase

26 Simple to do list application

27 Composer Silex Doctrine Migrations

28 Time to deploy!

29 Option A: External tool

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40 Useful tools Beanstalkapp DeployHQ Laravel Forge

41 Pros Cons 1. Easy setup 2. One-click deployments 3. Environment support 4. Can only deploy from repo 1. Files copied one by one 2. Composer run on server 3. No build steps 4. Their way, or the highway 5. Can t deploy if provider is offline

42 Option B: Internal tool

43

44 $ gem install capistrano

45 $ cap install => mkdir -p config/deploy => create config/deploy.rb => create config/deploy/staging.rb => create config/deploy/production.rb => mkdir -p lib/capistrano/tasks => create Capfile => Capified

46 $ cat config/deploy.rb lock '3.6.1' set :application, 'silex_todo' set :repo_url, set :deploy_to, '/var/www/todo'

47 $ cat config/deploy/production.rb server 'todo.example.com', user: 'deploy', roles: %w{app db}

48 $ cap production deploy 00:00 git:wrapper 01 mkdir -p /tmp 02 chmod 700 /tmp/git-ssh-silex_todo-production-michael.sh 00:07 git:check 01 git ls-remote --heads 00:08 deploy:check:directories 01 mkdir -p /var/www/todo/shared /var/www/todo/releases 00:08 git:clone 01 git clone --mirror /var/www/todo/repo 01 Cloning into bare repository '/var/www/todo/repo'... 00:10 git:update 01 git remote update --prune 01 Fetching origin 00:11 git:create_release 01 mkdir -p /var/www/todo/releases/ git archive master tar -x -f - -C /var/www/todo/releases/ :12 git:set_current_revision 01 echo "6cc1b6cbc827e205b24d0d599ea7b667a3ec5ca0" >> REVISION 00:12 deploy:symlink:release 01 ln -s /var/www/todo/releases/ /var/www/todo/releases/current 02 mv /var/www/todo/releases/current /var/www/todo 00:12 deploy:log_revision 01 echo "Branch master (at 6cc1b6cbc827e205b24d0d599ea7b667a3ec5ca0) deployed as release by michael" >> /var/www/todo/revisions.log

49 $ cap production deploy Generate and upload deployment script Clone repo Generate archive from repo Untar archive into releases folder Symlink current folder to the latest release

50 $ gem install capistrano-composer In Capfile: require 'capistrano/composer'

51 $ cap production deploy 00:18 composer:run 01 composer install --no-dev --prefer-dist --no-interaction -- quiet --optimize-autoloader s

52 lib/capistrano/tasks/database_tasks.rake: namespace :database do desc 'migrate database' task :migrate do on roles(:db) do execute "cd #{release_path} &&./vendor/bin/ doctrine-migrations migrations:migrate --db-configuration config/db-config.php --configuration config/migrations.yml" end end end

53 lib/capistrano/tasks/database_tasks.rake: namespace :database do desc 'migrate database' task :migrate do on roles(:db) do execute "cd #{release_path} &&./vendor/bin/ doctrine-migrations migrations:migrate --db-configuration config/db-config.php --configuration config/migrations.yml" end end end

54 lib/capistrano/tasks/database_tasks.rake: namespace :database do desc 'migrate database' task :migrate do on roles(:db) do execute "cd #{release_path} &&./vendor/bin/ doctrine-migrations migrations:migrate --db-configuration config/db-config.php --configuration config/migrations.yml" end end end

55 lib/capistrano/tasks/database_tasks.rake: namespace :database do desc 'migrate database' task :migrate do on roles(:db) do execute "cd #{release_path} &&./vendor/bin/ doctrine-migrations migrations:migrate --db-configuration config/db-config.php --configuration config/migrations.yml" end end end

56 lib/capistrano/tasks/database_tasks.rake: namespace :database do desc 'migrate database' task :migrate do on roles(:db) do execute "cd #{release_path} &&./vendor/bin/ doctrine-migrations migrations:migrate --db-configuration config/db-config.php --configuration config/migrations.yml" end end end

57 Capfile: after "composer:install", "database:migrate"

58 $ cap production deploy 00:22 database:migrate 01 cd #{release_path} &&./vendor/bin/doctrine-migrations migrations:migrate db-co s

59

60 Useful tools Capistrano Webistrano Rocketeer Ansible

61 Pros Cons 1. One-click deployments 2. Environment support 3. Can only deploy from repo 4. Internal solution 5. Atomic deploys 1. Learning curve 2. Composer run on server 3. No build steps 4. Probably want to use Bundler to manage versions 6. Rollback support

62 Option C: System Packages

63 $ apt-get install todo $ yum install todo $ pacman -S todo

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66 .!"" resources!"" src #!"" application # #!"" controller # # # $"" IndexController.php # #!"" model # # # $"" User.php # # $"" view # # $"" show-user.php #!"" composer.json #!"" composer.lock #!"" config # #!"" mappings.json # # $"" targets.json # $"" public # $"" index.php $"" test

67 .!"" resources $ fpm -s dir -t rpm -n todo!"" src #!"" application # #!"" controller # # # $"" IndexController.php # #!"" model # # # $"" User.php # # $"" view # # $"" show-user.php #!"" composer.json #!"" composer.lock #!"" config # #!"" mappings.json # # $"" targets.json # $"" public # $"" index.php $"" test

68 .!"" resources!"" src #!"" application $ fpm -s dir -t rpm -n todo \ src/=/var/www/todo \ src/config/=/etc/todo # #!"" controller # # # $"" IndexController.php # #!"" model # # # $"" User.php # # $"" view # # $"" show-user.php #!"" composer.json #!"" composer.lock #!"" config # #!"" mappings.json # # $"" targets.json # $"" public # $"" index.php $"" test

69 .!"" resources!"" src #!"" application # #!"" controller # # # $"" IndexController.php $ fpm -s dir -t rpm --config-files /etc \ -n todo \ src/=/var/www/todo \ src/config/=/etc/todo # #!"" model # # # $"" User.php # # $"" view # # $"" show-user.php #!"" composer.json #!"" composer.lock #!"" config # #!"" mappings.json # # $"" targets.json # $"" public # $"" index.php $"" test

70 .!"" resources!"" src #!"" application # #!"" controller # # # $"" IndexController.php # #!"" model $ fpm -s dir -t rpm --config-files /etc \ --exclude "var/www/todo/config*" \ -n todo \ src/=/var/www/todo \ src/config/=/etc/todo # # # $"" User.php # # $"" view # # $"" show-user.php #!"" composer.json #!"" composer.lock #!"" config # #!"" mappings.json # # $"" targets.json # $"" public # $"" index.php $"" test

71 $ fpm -s dir -t rpm --config-files /etc --exclude "var/www/todo/config*" -n todo src/=/var/ www/todo src/config/=/etc/todo => Created package {:path=>"todo x86_64.rpm"}

72 Continous Integration

73 What is Continous Integration?

74 Use it to run tests

75 Use it to composer install

76 Use it to mitigate risk

77 Use it to build on identical platforms

78 Use it to package your application

79 Use it to deploy to production

80 Use it to AUTOMATE THINGS

81

82 Option C: System Packages

83 $ apt-get install todo $ yum install todo $ pacman -S todo

84 Almost

85 Database migrations

86 $ fpm -s dir -t rpm --config-files /etc --exclude "var/www/todo/config*" -n todo src/=/var/ www/todo src/config/=/etc/todo => Created package {:path=>"todo x86_64.rpm"}

87 $ fpm -s dir -t rpm --config-files /etc --exclude "var/www/todo/config*" -n todo --after-install /path/to/script src/=/var/www/ todo src/config/=/etc/todo => Created package {:path=>"todo x86_64.rpm"}

88 Useful tools FPM Jenkins RPM / Deb / Pkg

89 Releases are immutable

90 Pros Cons 1. Atomic releases 2. Build on system tools 3. Proper build toolchain 1. Steep learning curve 2. Need to run package repo 3. Ideal to run CI system 4. Signed builds 5. Easy upgrade/rollback 6. Immutable

91 Option D: Blue / Green

92 Load Balancer

93 Load Balancer

94 Shared databases

95 Single database

96 Server maintenance

97 g u l P p a s s e e h l e m a Sh

98 Infrastructure level

99 Useful tools Puppet / Chef / Ansible HAProxy

100 Pros Cons 1. Low risk deployments 2. Test on production systems 3. Easy changeover 1. Can be expensive 2. Databases are hard 3. More moving parts to manage

101 Option E: Immutable

102 1 0 0 Load Balancer 1 0 1

103 Load Balancer 1 0 1

104 1 0 1 Load Balancer

105 1 0 1 Load Balancer

106 Load Balancer

107 Why immutable?

108 1 0 0 Load Balancer 1 0 1

109 1 0 0 Load Balancer 1 0 1

110 1 0 0 Load Balancer

111 1 0 0 Load Balancer 1 0 2

112 Useful tools Puppet / Chef / Ansible Packer Cloud providers

113 Pros Cons 1. Known environment 2. Test 2+ releases at once 3. Easy changeover 1. Cost 2. Slow to build 3. Database sync 4. Truly atomic releases

114 Deployment techniques

115 Build (at least) daily (even better if it s automated)

116 Announce releases

117 Staggered Releases

118 Canary deploys

119 Go / No Go

120 Containers

121 Chatops

122 Summary

123 Automate your deployment

124 Local builds

125 Immutable releases

126 Think about deployment before you write any code

127 The three strikes rule

128 Make it a single command

129 Your deploys should be as boring, straightforward, and stress-free as possible. - Zach Holman (

130 Michael Heap at #phpworld