Results for test-switch-lib

= Backup utility for database, folders and files Backs up a MySQL database, folders and files to a default folder (~/backup) or to a specified folder. If the --cron switch is provided the specified database and files are not backed up rather a cron job of the provided command is added to crontab. == Install The application can be installed with $ gem install syc-backup == Usage Backup a database to the default folder _~/backup_ $ sycbackup -d database -uuser -ppass Backup a MySQL database, a directory and files to the default folder $ sycbackup -d database -uuser -ppass -f directory,file1,file2 Specify a backup folder $ sycbackup backup/folder -d database -uuser -ppass -f directory,file1,file2 Override files in the backup folder if they exist $ sycbackup backup/folder --override -f directory,file1,file2 Don't compress the backup $ sycbackup --no-compress -f directory,file1,file2 Create a cron job that is scheduled every day at 2:30 $ sycbackup -d database -uuser -ppass -f directory,file1 --cron 30,2,*,*,* If the user or password contains characters as '(' you have to escape them. A password like 123(56 has to be provided with pass\"123\(56\". == Usage of --override and --no-compress Whether the backup directory and the backup files are time stamped depends how --override and --no-compress is set. The results are shown in the table below. --override --no-compress backup directory backup file(s) 0 0 w/o timestamp w/ timestamp 1 0 w/o timestamp w/ timestamp 0 1 w/ timestamp uncompressed 1 1 w/o timestamp uncompressed == Supported Platform syc-backup has been tested with 1.9.3 == Notes The application backs up the MySQL database with _mysqldump_. The dumpfile has the form yyyymmdd-HHMMSS_databasename.sql. After the files are backed up the dumpfile will be deleted. If the --no-compress is provided the files are copied to the backup folder. Otherwise they are compressed with _tar cfz YYYYmmdd-HHMMSS_syc-backup.tar.gz_. If the --override switch is not provided the backup directory will be added a timestamp. So if you create a cron job you should every now and then delete obsolete backup folders. The source contains lib/backup/file_backup.rb which is not used in the application. == Tests The tests create folders and files and will be deleted after the tests finish. _MySQLBackup_ needs to run a MySQL database with a database _test_ and a user _user_ with the password _pass_. The test files live in the test folder and begin with test_. There is a rake file available which can be used to run all tests with $ rake test == Links * [http://sugaryourcoffee.github.com/syc-backup] - RubyDoc * [http://www.github.com/sugaryourcoffee/syc-backup] - Source code on GitHub * [http://syc.dyndns.org/drupal/content/backup-drupal-database] - Development notebook * [https://rubygems.org/gems/syc-backup] - RubyGems

# ruby unshare (runshare) This tool allows to unshare Linux namespaces. The implementation is similar to the unshare(1) tool. ## Installation Add this line to your application's Gemfile: ```ruby gem 'runshare' ``` And then execute: $ bundle Or install it yourself as: $ gem install runshare ## Usage > require "runshare" > RUnshare::unshare For example: cat > test.rb require "runshare" pid = RUnshare::unshare( :clone_newpid => true, :clone_newns => true, :clone_newcgroup => true, :clone_newipc => true, :clone_newuts => true, :clone_newnet => true, :clone_newtime => true, :fork => true, :mount_proc => "/proc", # docker export $(docker create hello-world) | tar -xf - -C rootfs :root => "/tmp/rootfs" ) if pid == 0 # child puts "--- #{Process.pid}" if system("/hello") != true raise "bad" end puts "--- done" else # parent puts "-- unshare=#{pid}, pid=#{Process.pid}" puts "-- exit=#{Process.waitpid(pid)}" end ^D sudo ruby -I ./lib ./test.rb ## Quick start $ rake compile && echo 'require "runshare"; RUnshare::unshare(:clone_newuts => true)' | irb install -c tmp/x86_64-linux/runshare/2.4.10/runshare.so lib/runshare/runshare.so cp tmp/x86_64-linux/runshare/2.4.10/runshare.so tmp/x86_64-linux/stage/lib/runshare/runshare.so Switch to inspect mode. require "runshare"; RUnshare::unshare ## Ruby <2.5 If your app is single threaded and you are observing: eval:1: warning: pthread_create failed for timer: Invalid argument, scheduling broken Just ignore it with some degree of bravity. You also can silence it by setting: $VERBOSE = nil ## Development After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment. To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org). ## Contributing Bug reports and pull requests are welcome on GitHub at https://github.com/sitano/runshare. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct. ## License The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

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