Add support for Vagrant (#1428)

* Add support for Vagrant

Use the Vagrantfile to create a workable test machine in a few minutes
to run the unit and most of the integration tests on non-Linux systems.

* Vagrant: install jq and crane to help debugging

.gitignore

@@ -1,3 +1,4 @@
 out/
 .idea
 *.iml
+.vagrant

DEVELOPMENT.md

@@ -55,6 +55,9 @@ While you iterate on kaniko, you can verify images built with kaniko by:
 
 kaniko has both [unit tests](#unit-tests) and [integration tests](#integration-tests).
 
+Please note that the tests require a Linux machine - use Vagrant to quickly set
+up the test environment needed if you work with macOS or Windows.
+
 ### Unit Tests
 
 The unit tests live with the code they test and can be run with:

Vagrantfile

@@ -0,0 +1,50 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "generic/debian10"
+  config.vm.synced_folder ".", "/go/src/github.com/GoogleContainerTools/kaniko"
+  config.ssh.extra_args = ["-t", "cd /go/src/github.com/GoogleContainerTools/kaniko; bash --login"]
+
+  config.vm.provision "shell", inline: <<-SHELL
+    apt-get update && apt-get install -y \
+      apt-transport-https \
+      ca-certificates \
+      curl \
+      gnupg-agent \
+      html-xml-utils \
+      python \
+      wget \
+      ca-certificates \
+      jq \
+      software-properties-common
+    curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -
+    add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
+    apt-get update
+    apt-get install -y docker-ce-cli docker-ce containerd.io
+    usermod -a -G docker vagrant
+
+    curl -LO https://storage.googleapis.com/container-diff/latest/container-diff-linux-amd64
+    chmod +x container-diff-linux-amd64 && mv container-diff-linux-amd64 /usr/local/bin/container-diff
+
+    wget --quiet https://storage.googleapis.com/pub/gsutil.tar.gz
+    mkdir -p /opt/gsutil
+    tar xfz gsutil.tar.gz -C /opt/
+    rm gsutil.tar.gz
+    ln -s /opt/gsutil/gsutil /usr/local/bin
+
+    export GODLURL=https://golang.org/$(curl https://golang.org/dl/ | hxnormalize -x | hxselect -s "\n" "#page a.downloadBox" | cut -d = -f 3 | cut -d '"' -f 2 | grep linux)
+    wget --quiet $GODLURL
+    tar -C /usr/local -xzf go*.linux-amd64.tar.gz
+    echo 'export PATH=$PATH:/usr/local/go/bin:/go/bin' > /etc/profile.d/go-path.sh
+    echo 'export GOPATH=/go' >> /etc/profile.d/go-path.sh
+    chmod a+x /etc/profile.d/go-path.sh
+    chown vagrant /go
+    chown vagrant /go/bin
+
+    docker run --rm  -d -p 5000:5000 --name registry -e DEBUG=true registry:2
+    echo 'export IMAGE_REPO=localhost:5000' > /etc/profile.d/local-registry.sh
+    chmod a+x /etc/profile.d/local-registry.sh
+    go get github.com/google/go-containerregistry/cmd/crane
+  SHELL
+end