Wir verwenden Certmonger, um Zertifikate für Backend-Systeme auszustellen. Das funktioniert bei Apache gut, aber bei Nginx muss ich ein verkettetes Zertifikat angeben.
getcert request -f /etc/pki/tls/certs/$(hostname).crt -k /etc/pki/tls/private/$(hostname).key -r -F /etc/pki/tls/certs/intermediate.crt
Option 1) Kann ich Certmonger das Zertifikat in beiden Formaten speichern lassen? (Bevorzugt)
Option 2) Kann ich Nginx anweisen, die Zertifikate für mich zu verketten? (ähnlich wie Apache)
Ich möchte das Schreiben eines Skripts vermeiden, aber wenn es sein muss, ist das auch in Ordnung.
Beispiel:
/etc/pki/tls/certs/$(Hostname).crt
-----BEGIN CERTIFICATE-----
MIIHHjCCBgagAwIBAgIQDhG71w1UtxDQxvVAtrUspDANBgkqhkiG9w0BAQsFADBw
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xpE=
-----END CERTIFICATE-----
und /etc/pki/tls/certs/intermediate.crt
-----BEGIN CERTIFICATE-----
MIIEsTCCA5mgAwIBAgIQBOHnpNxc8vNtwCtCuF0VnzANBgkqhkiG9w0BAQsFADBs
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cPUeybQ=
-----END CERTIFICATE-----
Aber ich brauche sie angekettet.
-----BEGIN CERTIFICATE-----
MIIHHjCCBgagAwIBAgIQDhG71w1UtxDQxvVAtrUspDANBgkqhkiG9w0BAQsFADBw
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xpE=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
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cPUeybQ=
-----END CERTIFICATE-----
Und da Erkennungsmarken verwendet werden, möchte ich eine automatische Verlängerung.
Antwort1
Wie immer lautet die AntwortSelinux.
type=AVC msg=audit(1484834941.587:22023): avc: denied { execute } for pid=21252 comm="certmonger" name="after.sh" dev="dm-0" ino=244 scontext=system_u:system_r:certmonger_t:s0 tcontext=unconfined_u:object_r:user_tmp_t:s0 tclass=file
type=SYSCALL msg=audit(1484834941.587:22023): arch=c000003e syscall=59 success=no exit=-13 a0=7f3d5b2bdb10 a1=7f3d5b2bda90 a2=7f3d5b2c08c0 a3=7f3d57f932e0 items=0 ppid=3219 pid=21252 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="certmonger" exe="/usr/sbin/certmonger" subj=system_u:system_r:certmonger_t:s0 key=(null)
Ein Skript ist ausreichend, Sie müssen lediglich die Befehle davor und danach hinzufügen.
sudo ipa-getcert request -f /etc/pki/tls/certs/$(hostname).crt -k /etc/pki/tls/private/$(hostname).key -r -F /etc/pki/tls/certs/intermediate.crt -B /temp/before.sh -C /temp/after.sh