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authorJan (janneke) Nieuwenhuizen <janneke@gnu.org>2020-08-30 22:57:14 +0200
committerJan (janneke) Nieuwenhuizen <janneke@gnu.org>2020-09-01 16:06:38 +0200
commit01cefb7a570d846476ff5cb05d3b1e3511db5d81 (patch)
treef4828cac1d46067c1f395070e0f9df22bcf868d0 /doc/guix.texi
parentec32d4f291b3cc039a99f8090b6c2b2444be5a83 (diff)
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services: childhurd: Support installing secrets from the host.
* gnu/services/virtualization.scm (%hurd-vm-operating-system): Add secret-service. (hurd-vm-shepherd-service): Use it to install secrets. * doc/guix.texi (The Hurd in a Virtual Machine): Document it.
Diffstat (limited to 'doc/guix.texi')
-rw-r--r--doc/guix.texi27
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diff --git a/doc/guix.texi b/doc/guix.texi
index b1b0ab37d4..d3f0f729ec 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -25121,6 +25121,7 @@ Return the name of @var{platform}---a string such as @code{"arm"}.
@cindex @code{hurd}
@cindex the Hurd
+@cindex childhurd
Service @code{hurd-vm} provides support for running GNU/Hurd in a
virtual machine (VM), a so-called ``Childhurd''. The virtual machine is
@@ -25193,15 +25194,41 @@ By default, it produces
@lisp
'("--device" "rtl8139,netdev=net0"
"--netdev" "user,id=net0\
+ ,hostfwd=tcp:127.0.0.1:<secrets-port>-:1004\
,hostfwd=tcp:127.0.0.1:<ssh-port>-:2222\
,hostfwd=tcp:127.0.0.1:<vnc-port>-:5900")
@end lisp
with forwarded ports
@example
+<ssh-port>: @code{(+ 11004 (* 1000 @var{ID}))}
<ssh-port>: @code{(+ 10022 (* 1000 @var{ID}))}
<vnc-port>: @code{(+ 15900 (* 1000 @var{ID}))}
@end example
+@item @code{secret-root} (default: @file{/etc/childhurd})
+The root directory with out-of-band secrets to be installed into the
+childhurd once it runs. Childhurds are volatile which means that on
+every startup, secrets such as the SSH host keys and Guix signing key
+are recreated.
+
+If the @file{/etc/childhurd} directory does not exist, the
+@code{secret-service} running in the Childhurd will be sent an empty
+list of secrets.
+
+Typical use to populate @file{"/etc/childhurd"} with a tree of
+non-volatile secrets, like so
+
+@example
+/etc/childhurd/etc/guix/signing-key.pub
+/etc/childhurd/etc/guix/signing-key.sec
+/etc/childhurd/etc/ssh/ssh_host_ed25519_key
+/etc/childhurd/etc/ssh/ssh_host_ecdsa_key
+/etc/childhurd/etc/ssh/ssh_host_ed25519_key.pub
+/etc/childhurd/etc/ssh/ssh_host_ecdsa_key.pub
+@end example
+
+to be sent to the Childhurd, including permissions.
+
@end table
@end deftp