packer: Include playbook to upload images to shacache.

packer/shacache/shacache.cfg

+[networkcache]
+download-binary-cache-url = http://www.shacache.org/shacache
+download-cache-url = https://www.shacache.org/shacache
+download-binary-dir-url = http://www.shacache.org/shadir
+download-dir-url = http://www.shacache.org/shadir
+
+signature_private_key_file = shacache/signature.key
+signature_certificate_file = shacache/signature.cert
+
+upload-cache-url = https://www.shacache.org/shacache
+shacache-cert-file = shacache/shacache.crt
+shacache-key-file = shacache/shacache.key
+
+upload-dir-url = https://www.shacache.org/shadir
+shadir-cert-file = shacache/shacache.crt
+shadir-key-file = shacache/shacache.key
+
+shacache-ca-file = /etc/opt/ca.crt
+shadir-ca-file = /etc/opt/ca.crt
+
+signature-certificate-list =
+  -----BEGIN CERTIFICATE-----
+  MIIB8DCCAVmgAwIBAgIJAPFf61p8y809MA0GCSqGSIb3DQEBBQUAMBAxDjAMBgNV
+  BAMMBUNPTVAtMCAXDTE0MDIxNzE2NDgxN1oYDzIxMTQwMTI0MTY0ODE3WjAQMQ4w
+  DAYDVQQDDAVDT01QLTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAsiqCyuv1
+  HO9FmtwnMbEa1/u8Dn7T0k7hVKYXVQYof+59Ltbb3cA3nLjFSJDr/wQT6N89MccS
+  PneRzkWqZKL06Kmj+N+XJfRyVaTz1qQtNzjdbYkO6RgQq+fvq2CO0+PSnL6NttLU
+  /a9nQMcVm7wZ8kmY+AG5LbVo8lmxDD16Wq0CAwEAAaNQME4wHQYDVR0OBBYEFEVi
+  YyWHF3W7/O4NaTjn4lElLpp7MB8GA1UdIwQYMBaAFEViYyWHF3W7/O4NaTjn4lEl
+  Lpp7MAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQADgYEAgIPGoxhUa16AgjZx
+  Jr1kUrs8Fg3ig8eRFQlBSLYfANIUxcQ2ScFAkmsvwXY3Md7uaSvMJsEl2jcjdmdi
+  eSreNkx85j9GtMLY/2cv0kF4yAQNRtibtDkbg6fRNkmUopDosJNVf79l1GKX8JFL
+  zZBOFdOaLYY/6dLRwiTUKHU6su8=
+  -----END CERTIFICATE-----

packer/upload.yml

+- name: Upload a list of images to shacache, be sure you know what you are doing.
+  hosts: 127.0.0.1
+  connection: local
+
+  tasks:
+
+    - name: Upload a list of images to shacache, there is no verification for now
+      shell: networkcache-upload --prefix-key packerimage- --url {{ item }} --file {{ item }} shacache/shacache.cfg
+      with_items:
+           - output-debian8/packer-debian8.gz
+           - output-debian7/packer-debian7.gz
+           - output-ubuntu-14-04-server/packer-ubuntu-14-04-server.gz
+           - output-ubuntu-15-04-server/packer-ubuntu-15-04-server.gz
+           - output-centos72/packer-centos72.gz
+           - output-centos67/packer-centos67.gz
+           - output-debian8-testing-version/packer-debian8-testing-version.gz
+           - output-debian7-testing-version/packer-debian7-testing-version.gz
+           - output-ubuntu-15-04-server-testing-version/packer-ubuntu-15-04-server-testing-version.gz
+           - output-ubuntu-14-04-server-testing-version/packer-ubuntu-14-04-server-testing-version.gz
+           - output-centos67-testing-version/packer-centos67-testing-version.gz
+           - output-centos72-testing-version/packer-centos72-testing-version.gz
+           - output-debian8-webrunner/packer-debian8-webrunner.gz
+           - output-debian8-erp5-standalone/packer-debian8-erp5-standalone.gz
+           - output-debian8-wendelin/packer-debian8-wendelin.gz
+           - output-debian8-vm-bootstrap/packer-debian8-vm-bootstrap.gz 
+           - output-debian7-vm-bootstrap/packer-debian7-vm-bootstrap.gz
+           - output-ubuntu-14-04-server-vm-bootstrap/packer-ubuntu-14-04-server-vm-bootstrap.gz
+           - output-ubuntu-15-04-server-vm-bootstrap/packer-ubuntu-15-04-server-vm-bootstrap.gz
+           - output-centos68-vm-bootstrap/packer-centos68-vm-bootstrap.gz
+           - output-centos72-vm-bootstrap/packer-centos72-vm-bootstrap.gz
+