134 lines
4.1 KiB
Crystal
134 lines
4.1 KiB
Crystal
require "commander"
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require "docr"
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require "docr/utils.cr"
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require "file_utils"
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require "uuid"
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# TODO: Write documentation for `Faaso`
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module Faaso
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VERSION = "0.1.0"
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module Commands
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class Build
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@arguments : Array(String) = [] of String
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@options : Commander::Options
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def initialize(options, arguments)
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@options = options
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@arguments = arguments
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end
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def run
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@arguments.each do |arg|
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# A function is a folder with stuff in it
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# TODO: decide template based on file extensions or other metadata
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template = "templates/crystal"
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tmp_dir = "tmp/#{UUID.random}"
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slug = arg.gsub("/", "_").strip("_")
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repo = "localhost:5000"
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tag = "#{repo}/#{slug}:latest"
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puts "Building function... #{arg} in #{tmp_dir}"
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Dir.mkdir_p("tmp") unless File.exists? "tmp"
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FileUtils.cp_r(template, tmp_dir)
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Dir.glob(arg + "/**/*").each do |file|
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FileUtils.cp(file, tmp_dir)
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end
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docker_api = Docr::API.new(Docr::Client.new)
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docker_api.images.build(context: tmp_dir, tags: [tag, "#{slug}:latest"]) { }
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puts "Pushing to repo as #{tag}"
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docker_api.images.tag(repo: repo, name: slug, tag: "latest")
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# FIXME: pushing is broken because my test registry has no auth
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# docker_api.images.push(name: slug, tag: "latest", auth: "")
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end
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end
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end
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class Up
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@arguments : Array(String) = [] of String
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@options : Commander::Options
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def initialize(options, arguments)
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@options = options
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@arguments = arguments
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end
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def run
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@arguments.each do |arg|
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slug = arg.gsub("/", "_").strip("_")
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repo = "localhost:5000"
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tag = "#{repo}/#{slug}:latest"
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docker_api = Docr::API.new(Docr::Client.new)
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# Pull image from registry
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docker_api.images.create(image: tag)
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# TODO: Start a container with the image
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containers = docker_api.containers.list(all: true)
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pp! containers
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# If it's running, do nothing
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if containers.any? { |c|
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c.@image == tag && c.@state == "running"
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}
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puts "#{arg} is already running"
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return 0
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end
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# If it is paused, unpause it
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paused = containers.select { |c|
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c.@image == tag && c.@state == "paused"
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}
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if paused.size > 0
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puts "Resuming existing paused container"
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docker_api.containers.unpause(paused[0].@id)
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return 0
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end
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# If it is exited, start it
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existing = containers.select { |c|
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c.@image == tag && c.@state == "exited"
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}
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puts "Starting function #{arg}"
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if existing.size > 0
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puts "Restarting existing exited container"
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docker_api.containers.start(existing[0].@id)
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return 0
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end
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# Creating from scratch
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puts "Creating new container"
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conf = Docr::Types::CreateContainerConfig.new(
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image: tag,
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hostname: "foo",
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host_config: Docr::Types::HostConfig.new
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)
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# FIXME: name should be unique
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response = docker_api.containers.create(name: "fungus", config: conf)
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docker_api.containers.start(response.@id)
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end
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# TODO: Run test for healthcheck
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# TODO: Map route in reverse proxy to function
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# TODO: Return function URL for testing
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end
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end
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class Down
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@arguments : Array(String) = [] of String
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@options : Commander::Options
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def initialize(options, arguments)
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@options = options
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@arguments = arguments
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end
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def run
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@arguments.each do |arg|
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puts "Stopping function... #{arg}"
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# TODO: check if function is running
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# TODO: stop function container
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# TODO: delete function container
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# TODO: remove route from reverse proxy
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end
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end
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end
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end
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end
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