Add hot reload dev docker (#78)

* Add hot reload dev docker

backend/.gitignore

@@ -1 +1,3 @@
-/vendor/
+/vendor/
+backend
+*.swp

backend/.realize.yaml

@@ -0,0 +1,37 @@
+settings:
+  files:
+    outputs:
+      status: false
+      path: ""
+      name: .r.outputs.log
+    logs:
+      status: false
+      path: ""
+      name: .r.logs.log
+    errors:
+      status: false
+      path: ""
+      name: .r.errors.log
+  legacy:
+    force: false
+    interval: 0s
+schema:
+- name: orsum-inflandi-II/backend
+  path: /go/src/github.com/orsa-scholis/orsum-inflandi-II/backend
+  args:
+  - -verbose
+  commands:
+    install:
+      status: true
+    run:
+      status: true
+  watcher:
+    extensions:
+    - go
+    paths:
+    - /
+    ignore:
+      paths:
+      - .git
+      - .realize
+      - vendor

backend/dev.Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:1.12
+
+WORKDIR /go/src/github.com/orsa-scholis/orsum-inflandi-II/backend
+
+ENV CGO_ENABLED=0
+ENV GO111MODULE=on
+
+RUN go get github.com/oxequa/realize
+
+EXPOSE 4560
+ENTRYPOINT ["realize", "start"]

backend/go.sum

@@ -1,6 +1,4 @@
 github.com/google/logger v1.0.0 h1:SS5v3IgoIXtXYrTqtGYaGaxGeZmeXum9oinQbkQ1Z6s=
 github.com/google/logger v1.0.0/go.mod h1:tQN+I/DyBt051hEHNEzPgIeyy/GD1WJaKbqPScoDKdY=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190415060736-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190422173550-953cdadca894 h1:I1H82UvcKKs7LLgUebogm16Tu+RUN38zBjQUOr7kvuY=
 golang.org/x/sys v0.0.0-20190422173550-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

cli/app

@@ -13,6 +13,7 @@ module OrsumInflandi
       option :backend, type: :boolean, default: true
       option :frontend, type: :boolean, default: true
       option :force_build, type: :boolean
+      option :dev, type: :boolean, default: false
 
       def start
         require_relative 'commands/start'

cli/commands/start.rb

@@ -1,19 +1,21 @@
 # frozen_string_literal: true
 
+require 'etc'
 require_relative '../logger'
 
 module OrsumInflandi
   module Commands
     class Start
-      BACKEND_IMAGE_NAME = 'orsa-scholis/orsum-inflandi'
+      BACKEND_IMAGE_NAME = 'orsa-scholis/orsum-inflandi-ii'
+      BACKEND_DEV_IMAGE_NAME = 'orsa-scholis/orsum-inflandi-ii-dev'
 
       def initialize(options)
         @options = options
       end
 
       def run
         threads = []
-        threads << Thread.new(Dir.pwd, &method(:start_backend)) if @options[:backend]
+        threads << backend_thread if @options[:backend]
         threads << Thread.new(&method(:start_frontend)) if @options[:frontend]
 
         %w[INT TERM].each do |signal|
@@ -25,6 +27,10 @@ def run
 
       private
 
+      def backend_thread
+        Thread.new(Dir.pwd) { |directory| @options[:dev] ? start_dev_backend(directory) : start_backend(directory) }
+      end
+
       def kill_threads(threads)
         puts "\n"
         Logger.new('Received KILL SIGNAL, shutting down...').info_log
@@ -38,14 +44,34 @@ def execute_command(command, &block)
 
       def build_backend(directory)
         backend_log('Building image')
-        execute_command(%W[docker build -t #{BACKEND_IMAGE_NAME} #{directory}/backend], &method(:backend_log))
+        execute_command(
+          %W[docker build -f #{directory}/backend/prod.Dockerfile -t #{BACKEND_IMAGE_NAME} #{directory}/backend],
+          &method(:backend_log)
+        )
+      end
+
+      def build_dev_backend(directory)
+        backend_log('Building dev image')
+        execute_command(
+          %W[docker build -f #{directory}/backend/dev.Dockerfile -t #{BACKEND_DEV_IMAGE_NAME} #{directory}/backend],
+          &method(:backend_log)
+        )
       end
 
       def start_backend(directory)
         build_backend(directory) unless backend_image_exists?
         execute_command(%W[docker run --rm -p 4560:4560 #{BACKEND_IMAGE_NAME} --verbose], &method(:backend_log))
       end
 
+      def start_dev_backend(directory)
+        build_dev_backend(directory) unless backend_dev_image_exists?
+        container_intern_path = '/go/src/github.com/orsa-scholis/orsum-inflandi-II/backend'
+        execute_command(
+          %W[docker run --rm -p 4560:4560 -v #{directory}/backend:#{container_intern_path} #{BACKEND_DEV_IMAGE_NAME}],
+          &method(:backend_log)
+        )
+      end
+
       def start_frontend
         Dir.chdir('frontend') { execute_command(%w[yarn run start], &method(:frontend_log)) }
       end
@@ -54,6 +80,10 @@ def backend_image_exists?
         system "[ \"$(docker images -q #{BACKEND_IMAGE_NAME} 2>/dev/null)\" != \"\" ]"
       end
 
+      def backend_dev_image_exists?
+        system "[ \"$(docker images -q #{BACKEND_DEV_IMAGE_NAME} 2>/dev/null)\" != \"\" ]"
+      end
+
       def frontend_log(log)
         Logger.new(log).frontend_log
       end