Class: Puppetfactory::Plugins::Docker

Inherits:
Puppetfactory::Plugins show all
Defined in:
lib/puppetfactory/plugins/docker.rb

Instance Attribute Summary

Attributes inherited from Puppetfactory::Plugins

#weight

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Docker

Returns a new instance of Docker.



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# File 'lib/puppetfactory/plugins/docker.rb', line 10

def initialize(options)
  super(options)

  @weight = 5

  @confdir      = options[:confdir]
  @stagedir     = options[:stagedir]
  @environments = "#{@stagedir}/environments"
  @puppetcode   = options[:puppetcode]
  @master       = options[:master]
  @usersuffix   = options[:usersuffix]
  @modulepath   = options[:modulepath]
  @templatedir  = options[:templatedir]
  @container    = options[:container_name] || 'centosagent'
  @group        = options[:docker_group]   || 'docker'
  @docker_ip    = options[:docker_ip]      || `facter ipaddress_docker0`.strip
  @privileged   = options[:privileged]     || false
end

Instance Method Details

#create(username, password) ⇒ Object 



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# File 'lib/puppetfactory/plugins/docker.rb', line 29

def create(username, password)
  begin
    environment = "#{@environments}/#{Puppetfactory::Helpers.environment_name(username)}"
    binds = [
      "/var/yum:/var/yum",
      "/var/cache/rubygems:/var/cache/rubygems",
      "/var/cache/yum:/var/cache/yum",
      "/etc/pki/rpm-gpg:/etc/pki/rpm-gpg",
#        "/etc/yum.repos.d:/etc/yum.repos.d", # we can't share this because of pe_repo.repo
#        "/opt/puppetlabs/server:/opt/puppetlabs/server",
      "/home/#{username}/puppet:#{@confdir}",
      "/sys/fs/cgroup:/sys/fs/cgroup:ro"
    ]

    case @modulepath
    when :readonly
      binds.push("#{environment}:#{@puppetcode}:ro")
    when :readwrite
      binds.push("#{environment}:#{@puppetcode}")
    when :none
      #pass
    else
      raise "Uknown modulepath setting (#{@modulepath})"
    end

    container = ::Docker::Container.create(
      "Cmd" => [
        "/usr/lib/systemd/systemd"
      ],
      "Tty" => true,
      "Domainname" => @usersuffix,
      "Env" => [
        "RUNLEVEL=3",
        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
        "HOME=/root/",
        "TERM=xterm"
      ],
      "ExposedPorts" => {
        "80/tcp" => {
        }
      },
      "Hostname" => "#{username}",
      "Image" => "#{@container}",
      "HostConfig" => {
        "Privileged" => @privileged,
        "SecurityOpt" => [
          "seccomp=unconfined"
        ],
        "Tmpfs" => {
          "/run" => "",
          "/tmp" => ""
        },
        "Binds" => binds,
        "ExtraHosts" => [
          "#{@master} puppet:#{@docker_ip}"
        ],
        "PortBindings" => {
          "80/tcp" => [
            {
              "HostPort" => "#{user_port(username)}"
            }
          ]
        },
      },
      "Name" => "#{username}"
    )

    container.rename(username) # Set container name so we can identify it
    init_scripts(username)     # Create init scripts so container restarts on boot
    container.start

  rescue => e
    # fatal error, so we stop execution here
    raise "Error creating container #{username}: #{e.message}"
  end

  $logger.info "Container #{username} created"
  true
end

#delete(username) ⇒ Object 



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# File 'lib/puppetfactory/plugins/docker.rb', line 109

def delete(username)
  begin
    remove_init_scripts(username)

    container = ::Docker::Container.get(username)
    output = container.delete(:force => true)
  rescue => e
    $logger.warn "Error removing container #{username}: #{e.message}"
    return false
  end

  $logger.info "Container #{username} removed"
  true
end

#login ⇒ Object 



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# File 'lib/puppetfactory/plugins/docker.rb', line 153

def 
  require 'etc'
  username = Etc.getpwuid(Process.euid).name
  exec("docker exec -it #{username} su -")
end

#repair(username) ⇒ Object 



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# File 'lib/puppetfactory/plugins/docker.rb', line 124

def repair(username)
  begin
    container = ::Docker::Container.get(username)
    container.delete(:force => true)

    create(username, nil)
  rescue => e
    raise "Error reparing container #{username}: #{e.message}"
  end

  $logger.info "Container #{username} repaired"
  true
end

#userinfo(username, extended = false) ⇒ Object 



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# File 'lib/puppetfactory/plugins/docker.rb', line 138

def userinfo(username, extended = false)
  user = {
    :username => username,
    :port     => user_port(username),
    :url      => sandbox_url(username),
  }

  if extended
    user_container = ::Docker::Container.get(username).json rescue {}
    user[:container_status] = massage_container_state(user_container['State'])
  end

  user
end