Added first code

.gitignore

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+
+# Created by https://www.gitignore.io/api/macos,vagrant,visualstudiocode
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Vagrant ###
+.vagrant/
+*.box
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history
+
+### Ansible ###
+*.retry
+
+# End of https://www.gitignore.io/api/macos,vagrant,visualstudiocode,ansible

Vagrantfile

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+Vagrant.configure(2) do |config|
+  config.vm.define "docker" do |docker|
+    docker.vm.box = "bento/ubuntu-18.04"
+    docker.vm.network "private_network", ip: "192.168.11.22"
+    docker.vm.hostname = "docker"
+    docker.vm.provision :shell, :path => "docker.sh"
+  end
+end

docker.sh

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+#!/bin/bash
+set -eux
+apt-get update
+apt-get install -y --no-install-recommends \
+        apt-transport-https \
+        ca-certificates \
+        curl \
+        software-properties-common \
+        python-minimal zip python-simplejson \
+        gnupg2 \
+        software-properties-common
+apt-get remove docker docker-engine docker.io
+
+curl -fsSL get.docker.com -o get-docker.sh
+sh get-docker.sh
+
+# install docker-compose
+curl -L "https://github.com/docker/compose/releases/download/1.21.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
+    chmod +x /usr/local/bin/docker-compose
+
+# install docker-machine
+curl -L "https://github.com/docker/machine/releases/download/v0.15.0/docker-machine-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-machine && \
+    chmod +x /usr/local/bin/docker-machine