146 lines
3.9 KiB
Crystal
146 lines
3.9 KiB
Crystal
require "./funko.cr"
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require "commander"
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require "docr"
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require "docr/utils.cr"
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require "uuid"
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# Functions as a Service, Ops!
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module Faaso
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VERSION = "0.1.0"
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# Ensure the faaso-net network exists
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def self.setup_network
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docker_api = Docr::API.new(Docr::Client.new)
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docker_api.networks.create(Docr::Types::NetworkConfig.new(
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name: "faaso-net",
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check_duplicate: false,
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driver: "bridge"
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))
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rescue ex : Docr::Errors::DockerAPIError
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raise ex if ex.status_code != 409 # Network already exists
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end
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module Commands
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# Build images for one or more funkos
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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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funkos = Funko.from_paths(@arguments)
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funkos.each do |funko|
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# Create temporary build location
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tmp_dir = Path.new("tmp", UUID.random.to_s)
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Dir.mkdir_p(tmp_dir) unless File.exists? tmp_dir
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funko.prepare_build tmp_dir
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puts "Building function... #{funko.name} in #{tmp_dir}"
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funko.build tmp_dir
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end
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end
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end
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# Bring up one or more funkos.
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#
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# This doesn't guarantee that they will be running the latest
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# version, and it will try to recicle paused and exited containers.
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#
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# If there is no other way, it will create a brand new container with
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# the latest known image and start it.
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#
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# If there are no images for the funko, it will fail to bring it up.
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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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funkos = Funko.from_paths(@arguments)
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funkos.each do |funko|
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if funko.image_history.empty?
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puts "Error: no images available for #{funko.name}:latest"
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next
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end
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case funko
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when .running?
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# If it's already up, do nothing
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# FIXME: bring back out-of-date warning
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puts "#{funko.name} is already up"
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when .paused?
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# If it is paused, unpause it
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puts "Resuming existing paused container"
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funko.unpause
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when .exited?
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puts "Starting function #{funko.name}"
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puts "Restarting existing exited container"
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funko.start
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else
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# Only have an image, deploy from scratch
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Faaso.setup_network # We need it
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puts "Creating and starting new container"
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funko.create_container(autostart: true)
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(1..5).each { |_|
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break if funko.running?
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sleep 0.1.seconds
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}
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if !funko.running?
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puts "Container for #{funko.name} is not running yet"
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next
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end
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puts "Container for #{funko.name} is running"
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end
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end
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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 funko... #{arg}"
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# TODO: check if funko is running
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# TODO: stop funko container
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# TODO: delete funko 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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class Deploy
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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 "Deploying funko... #{arg}"
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# TODO: Everything
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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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