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Contents
module Kontena::Cli::Apps
module DockerHelper
def process_docker_images(services, force_build = false, no_cache=false)
if services.none?{|name, service| service['build']}
puts "Not found any service with build option"
return
end
services.each do |name, service|
if service['build'] && (!image_exist?(service['image']) || force_build)
dockerfile = service['dockerfile'] || 'Dockerfile'
abort("'#{service['image']}' is not valid Docker image name") unless validate_image_name(service['image'])
abort("'#{service['build']}' does not have #{dockerfile}") unless dockerfile_exist?(service['build'], dockerfile)
puts "Building image #{service['image'].colorize(:cyan)}"
build_docker_image(service['image'], service['build'], dockerfile, no_cache)
puts "Pushing image #{service['image'].colorize(:cyan)} to registry"
push_docker_image(service['image'])
end
end
end
def validate_image_name(name)
!(/^[\w.\/\-]+:?+[\w+.]+$/ =~ name).nil?
end
def build_docker_image(name, path, dockerfile, no_cache=false)
cmd = ["docker build -t #{name}"]
cmd << "-f #{File.join(File.expand_path(path), dockerfile)}" if dockerfile != "Dockerfile"
cmd << "--no-cache" if no_cache
cmd << path
ret = system(cmd.join(' '))
abort("Failed to build image #{name.colorize(:cyan)}") unless ret
ret
end
def push_docker_image(image)
ret = system("docker push #{image}")
abort("Failed to push image #{image.colorize(:cyan)}") unless ret
ret
end
def image_exist?(image)
`docker history #{image} 2>&1` ; $?.success?
end
def dockerfile_exist?(path, dockerfile)
file = File.join(File.expand_path(path), dockerfile)
File.exist?(file)
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems