Add external CA signing and abstract out the RA backend

External CA signing is a 2-step process. You first have to run the IPA
installer which will generate a CSR. You pass this CSR to your external
CA and get back a cert. You then pass this cert and the CA cert and
re-run the installer. The CSR is always written to /root/ipa.csr.

A run would look like:

 # ipa-server-install --ca --external-ca -p password -a password -r EXAMPLE.COM -u dirsrv -n example.com --hostname=ipa.example.com -U
[ sign cert request ]
 # ipa-server-install --ca --external-ca -p password -a password --external_cert_file=/tmp/rob.crt --external_ca_file=/tmp/cacert.crt  -U -p password -a password -r EXAMPLE.COM -u dirsrv -n example.com --hostname=ipa.example.com

This also abstracts out the RA backend plugin so the self-signed CA we
create can be used in a running server. This means that the cert plugin
can request certs (and nothing else). This should let us do online replica
creation.

To handle the self-signed CA the simple ca_serialno file now contains
additional data so we don't have overlapping serial numbers in replicas.
This isn't used yet. Currently the cert plugin will not work on self-signed
replicas.

One very important change for self-signed CAs is that the CA is no longer
held in the DS database. It is now in the Apache database.

Lots of general fixes were also made in ipaserver.install.certs including:
 - better handling when multiple CA certificates are in a single file
 - A temporary directory for request certs is not always created when the
   class is instantiated (you have to call setup_cert_request())

1 files changed, 15 insertions, 8 deletions

diff --git a/install/tools/ipa-replica-prepare b/install/tools/ipa-replica-prepare
index bb8df1d9..3dc0ccce 100755
--- a/install/tools/ipa-replica-prepare
+++ b/install/tools/ipa-replica-prepare
@@ -31,6 +31,8 @@ from ipapython import ipautil
 from ipaserver.install import dsinstance, installutils, certs, httpinstance
 from ipaserver import ipaldap
 from ipapython import version
+from ipalib.constants import DEFAULT_CONFIG
+from ipalib import api
 import ldap
 
 def parse_options():
@@ -113,12 +115,13 @@ def export_certdb(realm_name, ds_dir, dir, passwd_fname, fname, hostname):
 
         db = certs.CertDB(dir)
         db.create_passwd_file()
-        db.create_certdbs()
-        if self_signed:
-            ca_db = certs.CertDB(dsinstance.config_dirname(dsinstance.realm_to_serverid(realm_name)))
-            db.create_from_cacert(ca_db.cacert_fname)
-        else:
-            ca_db = certs.CertDB(httpinstance.NSS_DIR, host_name=get_host_name())
+#        if self_signed:
+#            ca_db = certs.CertDB(dsinstance.config_dirname(dsinstance.realm_to_serverid(realm_name)))
+#            db.create_from_cacert(ca_db.cacert_fname)
+#        else:
+#            ca_db = certs.CertDB(httpinstance.NSS_DIR, host_name=get_host_name())
+        ca_db = certs.CertDB(httpinstance.NSS_DIR, host_name=get_host_name())
+        db.create_from_cacert(ca_db.cacert_fname)
         db.create_server_cert("Server-Cert", hostname, ca_db)
     except Exception, e:
         raise e
@@ -211,8 +214,12 @@ def main():
 
     replica_fqdn = args[0]
 
-    # FIXME: need more robust way to determine if dogtag is configured
-    if not certs.ipa_self_signed() and not ipautil.file_exists("/var/lib/pki-ca") and not options.dirsrv_pin:
+    # Just initialize the environment. This is so the installer can have
+    # access to the plugin environment
+    api.env._bootstrap()
+    api.env._finalize_core(**dict(DEFAULT_CONFIG))
+
+    if not certs.ipa_self_signed() and not ipautil.file_exists("/var/lib/pki-ca/conf/CS.cfg") and not options.dirsrv_pin:
         sys.exit("The replica must be created on the primary IPA server.\nIf you installed IPA with your own certificates using PKCS#12 files you must provide PKCS#12 files for any replicas you create as well.")
 
     print "Determining current realm name"