Class: Ufo::Docker::Builder
- Inherits:
-
Object
- Object
- Ufo::Docker::Builder
show all
- Extended by:
- Memoist
- Includes:
- Concerns
- Defined in:
- lib/ufo/docker/builder.rb
Class Method Summary
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Instance Method Summary
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#pretty_home, #pretty_path, #pretty_time
#logger
#execute, #user_params
Constructor Details
#initialize(options = {}) ⇒ Builder
Returns a new instance of Builder.
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# File 'lib/ufo/docker/builder.rb', line 15
def initialize(options={})
@options = options
@dockerfile = options[:dockerfile] || 'Dockerfile'
@image_namespace = options[:image_namespace] || 'ufo'
end
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Class Method Details
.build(options = {}) ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 7
def self.build(options={})
builder = Builder.new(options) builder.build
pusher = Pusher.new(nil, options)
pusher.push
builder
end
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Instance Method Details
#build ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 21
def build
start_time = Time.now
store_docker_image
logger.info "Building Docker Image"
compile_dockerfile_erb
check_dockerfile_exists
update_auth_token
command = "docker build #{build_options}-t #{docker_image} -f #{@dockerfile} ."
log = ".ufo/log/docker.log" if @options[:quiet]
success = execute(command, log: log)
unless success
docker_version_success = system("docker version > /dev/null 2>&1")
unless docker_version_success
docker_version_message = " Are you sure the docker daemon is available? Try running: docker version."
end
logger.info "ERROR: Fail to build Docker image.#{docker_version_message}".color(:red)
exit 1
end
took = Time.now - start_time
logger.info "Docker Image built: #{docker_image}"
logger.info "Took #{pretty_time(took)}"
end
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#build_options ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 46
def build_options
options = ENV['UFO_DOCKER_BUILD_OPTIONS']
options += " " if options
options
end
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#check_dockerfile_exists ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 96
def check_dockerfile_exists
unless File.exist?("#{Ufo.root}/#{@dockerfile}")
logger.info "#{@dockerfile} does not exist. Are you sure it exists?"
exit 1
end
end
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#compile ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 87
def compile
erb_path = "#{Ufo.root}/#{@dockerfile}.erb"
if File.exist?(erb_path)
compile_dockerfile_erb
else
logger.info "File #{erb_path.color(:green)} does not exist. Cannot compile it if it doesnt exist"
end
end
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#docker_image ⇒ Object
full_image - Includes the tag. Examples:
123456789.dkr.ecr.us-west-2.amazonaws.com/myapp:ufo-2018-04-20T09-29-08-b7d51df
org/repo:ufo-2018-04-20T09-29-08-b7d51df
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# File 'lib/ufo/docker/builder.rb', line 111
def docker_image
return generate_name if @options[:generate]
unless File.exist?(docker_name_path)
logger.info <<~EOL.color(:yellow)
WARN: Unable to find: #{pretty_path(docker_name_path)}
This contains the Docker image name that the build process uses.
Please first run:
ufo docker build
EOL
return "docker image not yet built"
end
IO.read(docker_name_path).strip
end
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#docker_name_path ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 143
def docker_name_path
"#{Ufo.root}/.ufo/tmp/state/docker_image_name_#{@image_namespace}.txt"
end
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#ecr_image_names(path) ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 65
def ecr_image_names(path)
from_image_names(path).select { |i| i =~ /\.amazonaws\.com/ }
end
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#from_image_names(path) ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 69
def from_image_names(path)
lines = IO.readlines(path)
froms = lines.select { |l| l =~ /^FROM/ }
froms.map do |l|
md = l.match(/^FROM (.*)/)
md[1]
end.compact
end
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#generate_name ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 139
def generate_name
["#{image_name}:#{@image_namespace}-#{timestamp}", git_sha].compact.join('-') end
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#git_sha ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 153
def git_sha
sha = if File.exist?('.git')
`git rev-parse --short HEAD`
elsif ENV['CODEBUILD_RESOLVED_SOURCE_VERSION'] ENV['CODEBUILD_RESOLVED_SOURCE_VERSION'][0..6] end
sha.strip if sha
end
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#image_name ⇒ Object
full_image - does not include the tag
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# File 'lib/ufo/docker/builder.rb', line 104
def image_name
Ufo.config.docker.repo
end
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#pusher ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 78
def pusher
@pusher ||= Pusher.new(docker_image, @options)
end
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#store_docker_image ⇒ Object
Store this in a file because this name gets reference in other tasks later and we want the image name to stay the same when the commands are run separate in different processes. So we store the state in a file. Only when a new docker build command gets run will the image name state be updated.
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# File 'lib/ufo/docker/builder.rb', line 132
def store_docker_image
dirname = File.dirname(docker_name_path)
FileUtils.mkdir_p(dirname) unless File.exist?(dirname)
docker_image = generate_name
IO.write(docker_name_path, docker_image)
end
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#timestamp ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 148
def timestamp
Time.now.strftime('%Y-%m-%dT%H-%M-%S')
end
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#update_auth_token ⇒ Object
Parse Dockerfile for FROM instruction. If the starting image is from an ECR repository, it’s likely an private image so we authorize ECR for pulling.
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# File 'lib/ufo/docker/builder.rb', line 54
def update_auth_token
ecr_image_names = ecr_image_names("#{Ufo.root}/#{@dockerfile}")
return if ecr_image_names.empty?
ecr_image_names.each do |ecr_image_name|
auth = Ufo::Ecr::Auth.new(ecr_image_name)
auth.update
end
end
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#update_dockerfile ⇒ Object
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# File 'lib/ufo/docker/builder.rb', line 163
def update_dockerfile
updater = if File.exist?("#{Ufo.root}/Dockerfile.erb") State.new(@options.merge(base_image: docker_image))
else
Dockerfile.new(docker_image, @options)
end
updater.update
end
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