Class: Pero::Docker

Inherits:
Object
  • Object
show all
Defined in:
lib/pero/docker.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(version, image_name, environment, volumes) ⇒ Docker

Returns a new instance of Docker.



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# File 'lib/pero/docker.rb', line 8

def initialize(version, image_name, environment, volumes)
  @server_version = version
  @image_name = image_name
  @environment = environment
  @volumes = volumes
end

Instance Attribute Details

#image_name ⇒ Object (readonly)

Returns the value of attribute image_name.



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# File 'lib/pero/docker.rb', line 7

def image_name
  @image_name
end

#server_version ⇒ Object (readonly)

Returns the value of attribute server_version.



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# File 'lib/pero/docker.rb', line 7

def server_version
  @server_version
end

#volumes ⇒ Object (readonly)

Returns the value of attribute volumes.



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# File 'lib/pero/docker.rb', line 7

def volumes
  @volumes
end

Instance Method Details

#alerady_run? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pero/docker.rb', line 43

def alerady_run?
  c = find
  c && c.info["State"] == "running" && c
end

#build ⇒ Object 



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# File 'lib/pero/docker.rb', line 15

def build
  Pero.log.info "start build container"
  ::Docker.options[:read_timeout] = 300
  begin
    image = if image_name
              ::Docker::Image.create('fromImage' => image_name)
            else
              ::Docker::Image.build(docker_file)
            end
  rescue => e
    Pero.log.debug docker_file
    Pero.log.error "failed build container #{e.inspect}"
    raise e
  end
  Pero.log.info "success build container"
  image
end

#conf_dir ⇒ Object 



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# File 'lib/pero/docker.rb', line 119

def conf_dir
  if Gem::Version.new("4.0.0") > Gem::Version.new(server_version)
    "/etc/puppet"
  elsif Gem::Version.new("5.0.0") > Gem::Version.new(server_version) && Gem::Version.new("4.0.0") <= Gem::Version.new(server_version)
    "/etc/puppetlabs/puppet/"
  elsif Gem::Version.new("6.0.0") > Gem::Version.new(server_version)&& Gem::Version.new("5.0.0") <= Gem::Version.new(server_version)
    "/etc/puppetlabs/puppet/"
  else
    "/etc/puppetlabs/puppet/"
  end
end

#container_name ⇒ Object 



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# File 'lib/pero/docker.rb', line 33

def container_name
  "pero-#{Digest::MD5.hexdigest(Dir.pwd)[0..5]}-#{@environment}"
end

#create_ca ⇒ Object 



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# File 'lib/pero/docker.rb', line 172

def create_ca
  if Gem::Version.new("5.0.0") > Gem::Version.new(server_version)
    'puppet cert generate `hostname` --dns_alt_names localhost,127.0.0.1'
  elsif Gem::Version.new("6.0.0") > Gem::Version.new(server_version)
    'puppet cert generate `hostname` --dns_alt_names localhost,127.0.0.1'
  else
    'puppetserver ca setup --ca-name `hostname` --subject-alt-names DNS:localhost'
  end
end

#docker_file ⇒ Object 



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# File 'lib/pero/docker.rb', line 131

def docker_file
  release_package,package_name = if Gem::Version.new("4.0.0") > Gem::Version.new(server_version)
    ["puppetlabs-release-el-#{el}.noarch.rpm", "puppet-server"]
  elsif Gem::Version.new("5.0.0") > Gem::Version.new(server_version) && Gem::Version.new("4.0.0") <= Gem::Version.new(server_version)
    ["puppetlabs-release-pc1-el-#{el}.noarch.rpm", "puppetserver"]
  elsif Gem::Version.new("6.0.0") > Gem::Version.new(server_version)&& Gem::Version.new("5.0.0") <= Gem::Version.new(server_version)
    ["puppet5-release-el-#{el}.noarch.rpm", "puppetserver"]
  elsif Gem::Version.new("7.0.0") > Gem::Version.new(server_version)&& Gem::Version.new("6.0.0") <= Gem::Version.new(server_version)
    ["puppet6-release-el-#{el}.noarch.rpm", "puppetserver"]
  else
    ["puppet7-release-el-#{el}.noarch.rpm", "puppetserver"]
  end

  vault_repo = if el == 6
    <<-EOS
RUN sed -i "s|#baseurl=|baseurl=|g" /etc/yum.repos.d/CentOS-Base.repo \
  && sed -i "s|mirrorlist=|#mirrorlist=|g" /etc/yum.repos.d/CentOS-Base.repo \
  && sed -i "s|http://mirror\.centos\.org/|http://vault\.centos\.org/|g" /etc/yum.repos.d/CentOS-Base.repo
    EOS
  else
    ''
  end

  legacy_signing = if Gem::Version.new("3.0.0") > Gem::Version.new(server_version)
    "RUN echo 'LegacySigningMDs md5' >> /etc/pki/tls/legacy-settings"
  else
    ''
  end

  <<-EOS
FROM #{from_image}
#{vault_repo}
#{legacy_signing}
RUN curl -L -k -O https://yum.puppetlabs.com/#{release_package}  && \
rpm -ivh #{release_package}
RUN yum install -y #{package_name}-#{server_version}
ENV PATH $PATH:/opt/puppetlabs/bin
RUN echo -e "#{puppet_config.split(/\n/).join("\\n")}" > #{conf_dir}/puppet.conf
  EOS
end

#el ⇒ Object 



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# File 'lib/pero/docker.rb', line 197

def el
  if Gem::Version.new("3.5.1") > Gem::Version.new(server_version)
    6
  else
    7
  end
end

#find ⇒ Object 



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# File 'lib/pero/docker.rb', line 37

def find
  ::Docker::Container.all(:all => true).find do |c|
    c.info["Names"].first == "/#{container_name}"
  end
end

#from_image ⇒ Object 



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# File 'lib/pero/docker.rb', line 205

def from_image
  "centos:#{el}"
end

#puppet_config ⇒ Object 



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# File 'lib/pero/docker.rb', line 101

def puppet_config
<<-EOS
[master]
vardir = /var/puppet
certname = puppet
dns_alt_names = puppet,localhost
autosign = true
environment_timeout = unlimited
codedir = /etc/puppetlabs/code

[main]
server = puppet
#{@environment && @environment != "" ? "environment = #{@environment}" : nil}
EOS


end

#run ⇒ Object 



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# File 'lib/pero/docker.rb', line 48

def run
  ::Docker::Container.all(:all => true).each do |c|
    c.delete(:force => true) if c.info["Names"].first == "/#{container_name}"
  end

  vols = volumes || []
  vols << "#{Dir.pwd}:/etc/puppetlabs/code/environments/#{@environment}"
  vols << "#{Dir.pwd}/keys:/etc/puppetlabs/puppet/eyaml/"

  container = ::Docker::Container.create({
    'name' => container_name,
    'Hostname' => 'puppet',
    'Image' => build.id,
    'ExposedPorts' => { '8140/tcp' => {} },
    'HostConfig' => {
      'Binds' => vols,
      'PortBindings' => {
        '8140/tcp' => [{ 'HostPort' => "0" }],
      },
    },
    'Cmd' => ["bash", "-c", "rm -rf #{conf_dir}/ssl/* && #{create_ca} && #{run_cmd}"]
  })

  Pero.log.info "start puppet master container"
  container.start

  container = find
  raise "can't start container" unless container
  begin
    Retryable.retryable(tries: 20, sleep: 5) do
      begin
        https = Net::HTTP.new('localhost', container.info["Ports"].first["PublicPort"])
        https.use_ssl = true
        https.verify_mode = OpenSSL::SSL::VERIFY_NONE
        Pero.log.debug "start server health check"
        https.start {
          response = https.get('/')
          Pero.log.debug "puppet http response #{response}"
        }
      rescue => e
        Pero.log.debug e.inspect
        raise e
      end
    end
  rescue
    Pero.log.error "can't start container.please check [ docker logs #{container.info["id"]} ]"
    container = find
    container.kill if container && container.info["State"] != "exited"
    raise "can't start puppet server"
  end
  container
end

#run_cmd ⇒ Object 



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# File 'lib/pero/docker.rb', line 182

def run_cmd
  if Gem::Version.new("3.0.0") > Gem::Version.new(server_version)
    # /var/puppet/run is created for the first time by running `puppet master`,
    # but `puppet master` will fail because the permissions are wrong.
    # So, let the `puppet master` fail once, fix the permission of /var/puppet/run, and execute `puppet master` again.
    'puppet master --no-daemonize --verbose || (chown puppet: /var/puppet/run && puppet master --no-daemonize --verbose)'
  elsif Gem::Version.new("5.0.0") > Gem::Version.new(server_version)
    'puppet master --no-daemonize --verbose'
  elsif Gem::Version.new("6.0.0") > Gem::Version.new(server_version)
    'puppetserver foreground'
  else
    'puppetserver foreground'
  end
end