Module: Docker

Defined in:
lib/open-dock/docker.rb

Constant Summary collapse

SPECIAL_OPTS = 
["image", "ports", "command", "post-conditions"]

Class Method Summary collapse

Class Method Details

.containers_for(host_name) ⇒ Object 



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# File 'lib/open-dock/docker.rb', line 7

def self.containers_for(host_name)
  config_file = "#{Ops::CONTAINERS_DIR}/#{host_name}.yml"
  begin
    config = YAML.load_file config_file
  rescue
    raise "Please, create '#{config_file}' file with all containers configured"
  end
end

.copy_ssh_credentials_command(container_name) ⇒ Object 



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# File 'lib/open-dock/docker.rb', line 16

def self.copy_ssh_credentials_command(container_name)
  <<-EOH
    ID=$(docker inspect -f   '{{.Id}}' #{container_name})
    # Container folder
    if sudo test -d "/var/lib/docker/aufs"; then
      CONTAINERS_DIR=/var/lib/docker/aufs/mnt
      SSH_DIR=$CONTAINERS_DIR/$ID/root/.ssh
    elif sudo test -d "/var/lib/docker/btrfs"; then
      CONTAINERS_DIR=/var/lib/docker/btrfs/subvolumes
      SSH_DIR=$CONTAINERS_DIR/$ID/root/.ssh
    elif sudo test -d "/var/lib/docker/devicemapper"; then
      CONTAINERS_DIR=/var/lib/docker/devicemapper/mnt
      SSH_DIR=$CONTAINERS_DIR/$ID/rootfs/root/.ssh
    fi

    echo SSH container folder: $SSH_DIR
    if sudo test ! -d "$SSH_DIR" ; then
      sudo mkdir $SSH_DIR
    fi

    echo Copying authorized_keys and id_rsa.pub files
    sudo touch $SSH_DIR/authorized_keys
    sudo cat ~/.ssh/authorized_keys | sudo tee -a $SSH_DIR/authorized_keys
    sudo cat ~/.ssh/id_rsa.pub | sudo tee -a $SSH_DIR/authorized_keys
    sudo chmod 600 $SSH_DIR/authorized_keys
  EOH
end

.get_container_port(container_config) ⇒ Object 



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# File 'lib/open-dock/docker.rb', line 45

def self.get_container_port(container_config)
  container_config["ports"].select{|port| port.end_with? ":22"}[0].split(':')[0]
end