packer: Add packer config to generate a ready to use disk image

packer/debian9-rs-base.json

+{
+    "variables": {
+        "user": "slapos",
+        "password": "slapos",
+        "domain": "",
+        "disk_size": "6",
+        "name": "image",
+        "custom_script": "scripts/empty.sh",
+	"re6st_token": "{{env `RE6STTOKEN`}}",
+	"computer_token": "{{env `COMPUTERTOKEN`}}"
+	"computer_name": "{{env `COMPUTERNAME`}}"
+    },
+
+    "builders":
+    [
+        {
+            "name": "debian9-rs-base-{{ user `disk_size`}}G-{{ user `name`}}",
+
+            "type": "qemu",
+            "format": "raw",
+            "accelerator": "kvm",
+            "disk_size": "{{ user `disk_size`}}000",
+
+            "iso_url": "https://cdimage.debian.org/mirror/cdimage/archive/9.9.0/amd64/iso-cd/debian-9.9.0-amd64-netinst.iso",
+            "iso_checksum": "e494e78d531352f0f3fdb210f13f7577",
+            "iso_checksum_type": "md5",
+
+            "http_directory": "http",
+
+            "ssh_username": "{{user `user`}}",
+            "ssh_password": "{{user `password`}}",
+            "ssh_wait_timeout": "1800s",
+            "shutdown_command": "echo '{{user `password`}}'|sudo -S shutdown -h now",
+
+            "headless": true,
+            "boot_wait": "2s",
+            "boot_command": [
+                   "<esc><wait><wait>",
+                   "install auto ",
+                   "preseed/url=http://{{ .HTTPIP }}:{{ .HTTPPort }}/preseed-debian9.cfg ",
+                   "debian-installer=en_US locale=en_US keymap=fr ",
+                   "netcfg/get_hostname={{ .Name }} ",
+                   "netcfg/get_domain={{ user `domain`}} ",
+
+                   "fb=false debconf/frontend=noninteractive ",
+
+                   "passwd/user-fullname={{user `user`}} ",
+                   "passwd/user-password={{user `password`}} ",
+                   "passwd/user-password-again={{user `password`}} ",
+                   "passwd/username={{user `user`}} ",
+
+                   "<enter>"
+            ]
+        }
+    ],
+
+    "provisioners": [
+        {
+            "type": "shell",
+            "execute_command": "echo '{{user `password`}}' | {{.Vars}} sudo -E -S bash '{{.Path}}'",
+	    "environment_vars": ["re6st_token={{ user `re6st_token` }}", "computer_name={{user `computer_name`}}", "computer_token={{ user `computer_token` }}"],
+            "scripts": [
+                "scripts/update.sh",
+                "scripts/packages.sh",
+                "scripts/network-debian9.sh",
+                "scripts/cleanup.sh",
+                "scripts/setup-base-slapos.sh",
+                "{{ user `custom_script` }}"
+            ]
+        }
+    ]
+}
+

packer/scripts/setup-base-slapos.sh

+#!/bin/bash
+
+set -e
+
+aptitude -y install --without-recommends python-setuptools
+
+wget https://bootstrap.pypa.io/get-pip.py
+python get-pip.py
+
+pip2 install --exists-action=i six
+pip2 install --exists-action=i requests
+pip2 install --exists-action=i slapcache
+
+wget http://deploy.erp5.net/vifib-base -O /root/run-vifib-base
+RE6STTOKEN=$re6st_token 
+COMPUTERTOKEN=$computer_token 
+COMPUTERNAME=$computer_name
+
+bash /root/run-vifib-base 
+
+re6st-conf --registry http://re6stnet.gnet.erp5.cn/ --token $RE6STTOKEN -r title $RE6STTOKEN -d /etc/re6stnet
+
+slapos node register --token $COMPUTERTOKEN  --interface-name lo $COMPUTERNAME
+
+# Re-run after the register to finish up the configuration
+bash /root/run-vifib-base