Add binary cache options

slapos.cfg.example

@@ -21,3 +21,25 @@ tap_base_name = slaptap
 # You can choose any other local network which does not conflict with your
 # current machine configuration
 ipv4_local_network = 10.0.0.0/16
+
+[networkcache]
+# Define options for binary cache, used to download already compiled software.
+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
+# List of signatures we trust:
+#   Cedric de Saint Martin's signature
+signature-certificate-list =
+  -----BEGIN CERTIFICATE-----
+  MIIB9jCCAV+gAwIBAgIJAO4V/jiMoICoMA0GCSqGSIb3DQEBBQUAMBMxETAPBgNV
+  BAMMCENPTVAtMjMyMCAXDTEyMDIxNjExMTAyM1oYDzIxMTIwMTIzMTExMDIzWjAT
+  MREwDwYDVQQDDAhDT01QLTIzMjCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA
+  wi/3Z8W9pUiegUXIk/AiFDQ0UJ4JFAwjqr+HSRUirlUsHHT+8DzH/hfcTDX1I5BB
+  D1ADk+ydXjMm3OZrQcXjn29OUfM5C+g+oqeMnYQImN0DDQIOcUyr7AJc4xhvuXQ1
+  P2pJ5NOd3tbd0kexETa1LVhR6EgBC25LyRBRae76qosCAwEAAaNQME4wHQYDVR0O
+  BBYEFMDmW9aFy1sKTfCpcRkYnP6zUd1cMB8GA1UdIwQYMBaAFMDmW9aFy1sKTfCp
+  cRkYnP6zUd1cMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQADgYEAskbFizHr
+  b6d3iIyN+wffxz/V9epbKIZVEGJd/6LrTdLiUfJPec7FaxVCWNyKBlCpINBM7cEV
+  Gn9t8mdVQflNqOlAMkOlUv1ZugCt9rXYQOV7rrEYJBWirn43BOMn9Flp2nibblby
+  If1a2ZoqHRxoNo2yTmm7TSYRORWVS+vvfjY=
+  -----END CERTIFICATE-----