Initial version of playbook which creates virtual machines.

scripts/genpasswd

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+""" Password generator module """
+
+import os
+import sys
+import string
+from base64 import encodestring
+from random import SystemRandom
+
+from Crypto.PublicKey import RSA
+from passlib.hash import sha512_crypt
+
+
+OUTDIR = "/srv/ansible-private/keystore"
+PUBKEY = "/srv/ansible-private/ssh/id_rsa.pub"
+
+
+class Passwd(object):
+    """ Generate, hash and encrypt passwords """
+
+    characters = string.ascii_letters + string.digits
+
+    def __init__(self, length=20):
+        self.plain = "".join([SystemRandom().choice(self.characters)\
+                              for _ in range(length)])
+
+    def hash(self):
+        """ Return sha512 hash of password """
+        return sha512_crypt.hash(self.plain, rounds=5000)
+
+    def encrypt(self, pem):
+        """ Return password encrypted with given public key """
+        key = RSA.importKey(open(pem, "r").read())
+        # docs say encrypt second argument will be ignored
+        return encodestring(key.encrypt(self.plain, "x")[0])
+
+
+def main():
+    """ Generate and store password for given host """
+    if len(sys.argv) != 2:
+        print >>sys.stderr, "Usage: %s <hostname>" % \
+            os.path.basename(sys.argv[0])
+        sys.exit(1)
+
+    os.umask(077)
+    mypass = Passwd()
+
+    dest = open(os.path.join(OUTDIR, sys.argv[1] + ".asc"), "w")
+    dest.write(mypass.encrypt(PUBKEY))
+    dest.close()
+
+    print mypass.hash()
+
+if __name__ == "__main__":
+    main()