Add packer template and documentation to generate VMware OVAs

Added a packer template to generate lab VM on VMware using Ubuntu
16.04 as base.  Made minor changes to bootstrap.sh to accomodate
more recent Ubuntu release including installing extra packages
required for Ubuntu 16.04 and to skip update of grub menu.lst, which
no longer exists. Added preseed.cfg file to create sudo-enabled
ubuntu account required for lab.  Added README.md to document usage
and edited top-level README.md to refer to VMware as well as AWS.

README.md

@@ -29,8 +29,8 @@ There are currently 3 options to start the workshop by yourself:
     - us-west-1: ami-07f8ee67
     - us-east-1: ami-1162bc6c
     - eu-central-1: ami-9a663471
- 1. We provide a [packer template](https://www.packer.io/) so you can create
-    your own AMI.
+ 1. We provide [packer templates](https://www.packer.io/) so you can create
+    your own AMI or VMware OVA.
  1. We have a [Vagrantfile](https://www.vagrantup.com/) for you to run using
     your favorite virtual machine hypervisor (NOTE: not yet fully tested).
 

packer/.gitignore

@@ -0,0 +1,3 @@
+packer_cache/
+packer-rubber-docker-ubuntu-16.04-vmware/
+rubber-docker-ubuntu-16.04.ova

packer/README.md

@@ -0,0 +1,43 @@
+# Building Rubber-Docker Workshop VMs
+
+## Overview
+
+This directory has two packer.json files that you can use to construct
+VMs for the lab.  You'll need to [download
+packer](https://www.packer.io/downloads.html) or [build it from
+source](https://www.packer.io/docs/install/index.html#compiling-from-source).
+
+Login using ubuntu/ubuntu for both VMs.
+
+## AWS AMI
+
+Set your AWS credentials as environmental variables and fill in a valid 
+subnet ID from your VPC in rubber-docker-aws.json, then execute: 
+```
+packer build rubber-docker-aws.json 
+```
+Note that the source AMI is not accessible outside the region given
+in the packer build file.
+
+## VMware OVA 
+
+Build on Mac OS X.  In addition to packer you'll need VMware Fusion
+and ovftool. Execute the following:
+
+```
+packer build rubber-docker-vmware.json
+ovftool packer-rubber-docker-ubuntu-16.04-vmware/rubber-docker-ubuntu-16.04.vmx rubber-docker-ubuntu-16.04.ova
+```
+The OVA is optional. You can also just start the VM directly in
+VMware Fusion.
+
+Note: The external network interface name on the VM may switch from
+ens33 to ens32 when you export to ovftool and boot.  If this occurs
+edit /etc/network/interfaces and switch the interface name to the
+correct value.
+
+## Licensing
+
+VMware packer file rubber-docker-vmware.json and preseed.cfg are derived
+from similar files published at 
+https://github.com/geerlingguy/packer-ubuntu-1604 under the [MIT license](https://opensource.org/licenses/MIT). 

packer/bootstrap.sh

@@ -20,16 +20,21 @@ fi
 sleep 10
 
 # Install packages
+echo "Installing packages..."
+apt-get -y install software-properties-common
 add-apt-repository \
    "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
    $(lsb_release -cs) \
    stable"
 apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 0EBFCD88
 apt-get update
-apt-get -y install docker-ce stress python-dev build-essential cmake htop ipython python-pip git
+apt-get -y install docker-ce stress python-dev build-essential cmake htop ipython python-pip git vim
 
 # Include the memory and memsw cgroups
-sed -i.bak 's|^kernel.*$|\0 cgroup_enable=memory swapaccount=1|' /boot/grub/menu.lst
+if [ -f /boot/grub/menu.lst ]; then
+   # Not available in recent Ubuntu builds, so this is optional. 
+   sed -i.bak 's|^kernel.*$|\0 cgroup_enable=memory swapaccount=1|' /boot/grub/menu.lst
+fi
 sed -i -r 's|GRUB_CMDLINE_LINUX="(.*)"|GRUB_CMDLINE_LINUX="\1 cgroup_enable=memory swapaccount=1"|' /etc/default/grub
 update-grub
 
@@ -45,7 +50,7 @@ systemctl restart docker
 usermod -G docker -a ubuntu
 
 # Clone git repo
-mkdir /workshop
+mkdir -p /workshop
 pushd /workshop
 git clone https://github.com/Fewbytes/rubber-docker.git
 pip install -r rubber-docker/requirements.txt
@@ -101,4 +106,4 @@ echo "Installing plugins using Vundle"
 echo | echo | vim +PluginInstall +qall &>/dev/null
 echo "Vundle done"
 python ~/.vim/bundle/YouCompleteMe/install.py 
-EOS
+EOS

packer/http/preseed.cfg

@@ -0,0 +1,45 @@
+choose-mirror-bin mirror/http/proxy string
+d-i base-installer/kernel/override-image string linux-server
+d-i clock-setup/utc boolean true
+d-i clock-setup/utc-auto boolean true
+d-i finish-install/reboot_in_progress note
+d-i grub-installer/only_debian boolean true
+d-i grub-installer/with_other_os boolean true
+d-i partman-auto/disk string /dev/sda
+d-i partman-auto-lvm/guided_size string max
+d-i partman-auto/choose_recipe select atomic
+d-i partman-auto/method string lvm
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm boolean true
+d-i partman-lvm/confirm_nooverwrite boolean true
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman/choose_partition select finish
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+d-i partman/confirm_write_new_label boolean true
+d-i pkgsel/include string openssh-server cryptsetup build-essential libssl-dev libreadline-dev zlib1g-dev linux-source dkms nfs-common
+d-i pkgsel/install-language-support boolean false
+d-i pkgsel/update-policy select none
+d-i pkgsel/upgrade select full-upgrade
+d-i time/zone string UTC
+tasksel tasksel/first multiselect standard, ubuntu-server
+
+d-i console-setup/ask_detect boolean false
+d-i keyboard-configuration/layoutcode string us
+d-i keyboard-configuration/modelcode string pc105
+d-i debian-installer/locale string en_US
+
+# Create ubuntu user account.
+d-i passwd/user-fullname string ubuntu
+d-i passwd/username string ubuntu
+d-i passwd/user-password password ubuntu
+d-i passwd/user-password-again password ubuntu
+d-i user-setup/allow-password-weak boolean true
+d-i user-setup/encrypt-home boolean false
+d-i passwd/user-default-groups ubuntu sudo
+d-i passwd/user-uid string 900
+
+# Enable passwordless sudo for ubuntu so other config scripts can work. 
+d-i preseed/late_command string \
+    echo 'ubuntu ALL=(ALL) NOPASSWD: ALL' > /target/etc/sudoers.d/ubuntu ; \
+    in-target chmod 440 /etc/sudoers.d/ubuntu ;

packer/rubber-docker-vmware.json

@@ -0,0 +1,63 @@
+{
+  "builders": [
+    {
+      "type": "vmware-iso",
+      "boot_command": [
+        "<enter><wait><f6><esc><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "<bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
+        "/install/vmlinuz<wait>",
+        " auto<wait>",
+        " console-setup/ask_detect=false<wait>",
+        " console-setup/layoutcode=us<wait>",
+        " debconf/frontend=noninteractive<wait>",
+        " debian-installer=en_US<wait>",
+        " fb=false<wait>",
+        " initrd=/install/initrd.gz<wait>",
+        " keyboard-configuration/layout=USA<wait>",
+        " keyboard-configuration/variant=USA<wait>",
+        " locale=en_US<wait>",
+        " netcfg/get_domain=vm<wait>",
+        " netcfg/get_hostname=rubber-docker<wait>",
+        " grub-installer/bootdev=/dev/sda<wait>",
+        " noapic<wait>",
+        " preseed/url=http://{{ .HTTPIP }}:{{ .HTTPPort }}/preseed.cfg",
+        " -- <wait>",
+        "<enter><wait>"
+      ],
+      "boot_wait": "10s",
+      "disk_size": 20480,
+      "guest_os_type": "ubuntu-64",
+      "headless": true,
+      "http_directory": "http",
+      "iso_url": "http://releases.ubuntu.com/16.04/ubuntu-16.04.4-server-amd64.iso",
+      "iso_checksum_type": "sha256",
+      "iso_checksum": "0a03608988cfd2e50567990dc8be96fb3c501e198e2e6efcb846d89efc7b89f2", 
+      "output_directory": "packer-rubber-docker-ubuntu-16.04-vmware",
+      "shutdown_command": "echo 'ubuntu'|sudo -S shutdown -P now",
+      "ssh_password": "ubuntu",
+      "ssh_port": 22,
+      "ssh_username": "ubuntu",
+      "ssh_wait_timeout": "10000s",
+      "tools_upload_flavor": "linux",
+      "vm_name": "rubber-docker-ubuntu-16.04",
+      "vmx_data": {
+        "cpuid.coresPerSocket": "1",
+        "memsize": "1024",
+        "numvcpus": "1"
+      }
+    }
+  ],
+  "provisioners": [
+    {
+      "type": "file",
+      "source": "vimrc",
+      "destination": "/tmp/vimrc"
+    },
+    {
+      "type": "shell",
+      "script": "bootstrap.sh"
+    }
+  ]
+}