* [bug#48435] [PATCH v3] Start enabling substitutes from bordeaux.guix.gnu.org.
2021-05-15 10:08 [bug#48435] [PATCH] Start enabling substitutes from bayfront Christopher Baines
2021-05-15 11:01 ` Mathieu Othacehe
2021-06-07 11:07 ` [bug#48435] [PATCH v2] Start enabling substitutes from bordeaux.guix.gnu.org Christopher Baines
@ 2021-06-08 12:14 ` Christopher Baines
2021-06-18 11:06 ` bug#48435: " Christopher Baines
2 siblings, 1 reply; 6+ messages in thread
From: Christopher Baines @ 2021-06-08 12:14 UTC (permalink / raw)
To: 48435
In addition to substitutes from ci.guix.gnu.org. There are more changes that
can be made in the future, but these changes seem like a good start.
* config-daemon.ac (guix_substitute_urls): Add https://bordeaux.guix.gnu.org.
* guix/scripts/substitute.scm (%default-substitute-urls): Add
http://bordeaux.guix.gnu.org.
* guix/store.scm (%default-substitute-urls): Add bordeaux.guix.gnu.org.
* doc/guix.texi: Adjust accordingly.
* doc/contributing.texi: Adjust accordingly.
---
config-daemon.ac | 2 +-
doc/contributing.texi | 8 +-
doc/guix.texi | 142 +++++++++++++++++++-----------------
guix/scripts/substitute.scm | 3 +-
guix/store.scm | 3 +-
5 files changed, 86 insertions(+), 72 deletions(-)
diff --git a/config-daemon.ac b/config-daemon.ac
index 85caee269b..5ddc740600 100644
--- a/config-daemon.ac
+++ b/config-daemon.ac
@@ -117,7 +117,7 @@ if test "x$guix_build_daemon" = "xyes"; then
dnl Determine the appropriate default list of substitute URLs (GnuTLS
dnl is required so we can default to 'https'.)
- guix_substitute_urls="https://ci.guix.gnu.org"
+ guix_substitute_urls="https://ci.guix.gnu.org https://bordeaux.guix.gnu.org"
AC_MSG_CHECKING([for default substitute URLs])
AC_MSG_RESULT([$guix_substitute_urls])
diff --git a/doc/contributing.texi b/doc/contributing.texi
index d67e632520..1086bb9fd4 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -376,12 +376,12 @@ Once your package builds correctly, please send us a patch
(@pxref{Submitting Patches}). Well, if you need help, we will be happy to
help you too. Once the patch is committed in the Guix repository, the
new package automatically gets built on the supported platforms by
-@url{@value{SUBSTITUTE-URL}, our continuous integration system}.
+@url{https://@value{SUBSTITUTE-SERVER-1}, our continuous integration system}.
@cindex substituter
Users can obtain the new package definition simply by running
@command{guix pull} (@pxref{Invoking guix pull}). When
-@code{@value{SUBSTITUTE-SERVER}} is done building the package, installing the
+@code{@value{SUBSTITUTE-SERVER-1}} is done building the package, installing the
package automatically downloads binaries from there
(@pxref{Substitutes}). The only place where human intervention is
needed is to review and apply the patch.
@@ -1107,7 +1107,7 @@ changes). This branch is intended to be merged in @code{master} every
until late in its development process.
@end table
-All these branches are @uref{@value{SUBSTITUTE-URL},
+All these branches are @uref{https://@value{SUBSTITUTE-SERVER-1},
tracked by our build farm} and merged into @code{master} once
everything has been successfully built. This allows us to fix issues
before they hit users, and to reduce the window during which pre-built
@@ -1141,7 +1141,7 @@ as timestamps or randomly-generated output in the build result.
Another option is to use @command{guix challenge} (@pxref{Invoking guix
challenge}). You may run it once the package has been committed and
-built by @code{@value{SUBSTITUTE-SERVER}} to check whether it obtains the same
+built by @code{@value{SUBSTITUTE-SERVER-1}} to check whether it obtains the same
result as you did. Better yet: Find another machine that can build it
and run @command{guix publish}. Since the remote build machine is
likely different from yours, this can catch non-determinism issues
diff --git a/doc/guix.texi b/doc/guix.texi
index 59b4ac11b4..a917d4092f 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -17,8 +17,9 @@
@set BASE-URL https://ftp.gnu.org/gnu/guix
@c The official substitute server used by default.
-@set SUBSTITUTE-SERVER ci.guix.gnu.org
-@set SUBSTITUTE-URL https://@value{SUBSTITUTE-SERVER}
+@set SUBSTITUTE-SERVER-1 ci.guix.gnu.org
+@set SUBSTITUTE-SERVER-2 bordeaux.guix.gnu.org
+@set SUBSTITUTE-URLS https://@value{SUBSTITUTE-SERVER-1} https://@value{SUBSTITUTE-SERVER-2}
@copying
Copyright @copyright{} 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès@*
@@ -229,7 +230,7 @@ Package Management
Substitutes
-* Official Substitute Server:: One particular source of substitutes.
+* Official Substitute Servers:: One particular source of substitutes.
* Substitute Server Authorization:: How to enable or disable substitutes.
* Getting Substitutes from Other Servers:: Substitute diversity.
* Substitute Authentication:: How Guix verifies substitutes.
@@ -780,12 +781,15 @@ Info search path).
@item
@cindex substitutes, authorization thereof
-To use substitutes from @code{@value{SUBSTITUTE-SERVER}} or one of its mirrors
-(@pxref{Substitutes}), authorize them:
+To use substitutes from @code{@value{SUBSTITUTE-SERVER-1}},
+@code{@value{SUBSTITUTE-SERVER-2}} or a mirror (@pxref{Substitutes}),
+authorize them:
@example
# guix archive --authorize < \
- ~root/.config/guix/current/share/guix/@value{SUBSTITUTE-SERVER}.pub
+ ~root/.config/guix/current/share/guix/@value{SUBSTITUTE-SERVER-1}.pub
+# guix archive --authorize < \
+ ~root/.config/guix/current/share/guix/@value{SUBSTITUTE-SERVER-2}.pub
@end example
@quotation Note
@@ -1547,7 +1551,7 @@ remote procedure call (@pxref{The Store}).
@item --substitute-urls=@var{urls}
Consider @var{urls} the default whitespace-separated list of substitute
source URLs. When this option is omitted,
-@indicateurl{https://@value{SUBSTITUTE-SERVER}} is used.
+@indicateurl{@value{SUBSTITUTE-URLS}} is used.
This means that substitutes may be downloaded from @var{urls}, as long
as they are signed by a trusted signature (@pxref{Substitutes}).
@@ -3685,7 +3689,7 @@ pre-built package binaries, but source tarballs, for instance, which
also result from derivation builds, can be available as substitutes.
@menu
-* Official Substitute Server:: One particular source of substitutes.
+* Official Substitute Servers:: One particular source of substitutes.
* Substitute Server Authorization:: How to enable or disable substitutes.
* Getting Substitutes from Other Servers:: Substitute diversity.
* Substitute Authentication:: How Guix verifies substitutes.
@@ -3694,14 +3698,15 @@ also result from derivation builds, can be available as substitutes.
* On Trusting Binaries:: How can you trust that binary blob?
@end menu
-@node Official Substitute Server
-@subsection Official Substitute Server
+@node Official Substitute Servers
+@subsection Official Substitute Servers
@cindex build farm
-The @code{@value{SUBSTITUTE-SERVER}} server is a front-end to an official build farm
-that builds packages from Guix continuously for some
-architectures, and makes them available as substitutes. This is the
-default source of substitutes; it can be overridden by passing the
+@code{@value{SUBSTITUTE-SERVER-1}} and
+@code{@value{SUBSTITUTE-SERVER-2}} are both front-ends to official build
+farms that build packages from Guix continuously for some architectures,
+and make them available as substitutes. These are the default source of
+substitutes; which can be overridden by passing the
@option{--substitute-urls} option either to @command{guix-daemon}
(@pxref{daemon-substitute-urls,, @code{guix-daemon --substitute-urls}})
or to client tools such as @command{guix package}
@@ -3714,7 +3719,7 @@ using HTTP makes all communications visible to an eavesdropper, who
could use the information gathered to determine, for instance, whether
your system has unpatched security vulnerabilities.
-Substitutes from the official build farm are enabled by default when
+Substitutes from the official build farms are enabled by default when
using Guix System (@pxref{GNU Distribution}). However,
they are disabled by default when using Guix on a foreign distribution,
unless you have explicitly enabled them via one of the recommended
@@ -3730,27 +3735,28 @@ other substitute server.
@cindex substitutes, authorization thereof
@cindex access control list (ACL), for substitutes
@cindex ACL (access control list), for substitutes
-To allow Guix to download substitutes from @code{@value{SUBSTITUTE-SERVER}} or a
-mirror thereof, you
-must add its public key to the access control list (ACL) of archive
+To allow Guix to download substitutes from @code{@value{SUBSTITUTE-SERVER-1}}, @code{@value{SUBSTITUTE-SERVER-2}} or a mirror, you
+must add the releavnt public key to the access control list (ACL) of archive
imports, using the @command{guix archive} command (@pxref{Invoking guix
-archive}). Doing so implies that you trust @code{@value{SUBSTITUTE-SERVER}} to not
+archive}). Doing so implies that you trust the substitute server to not
be compromised and to serve genuine substitutes.
@quotation Note
If you are using Guix System, you can skip this section: Guix System
-authorizes substitutes from @code{@value{SUBSTITUTE-SERVER}} by default.
+authorizes substitutes from @code{@value{SUBSTITUTE-SERVER-1}} and
+@code{@value{SUBSTITUTE-SERVER-2}} by default.
@end quotation
-The public key for @code{@value{SUBSTITUTE-SERVER}} is installed along with Guix, in
-@code{@var{prefix}/share/guix/@value{SUBSTITUTE-SERVER}.pub}, where @var{prefix} is
-the installation prefix of Guix. If you installed Guix from source,
-make sure you checked the GPG signature of
+The public keys for each of the project maintained substitute servers
+are installed along with Guix, in @code{@var{prefix}/share/guix/}, where
+@var{prefix} is the installation prefix of Guix. If you installed Guix
+from source, make sure you checked the GPG signature of
@file{guix-@value{VERSION}.tar.gz}, which contains this public key file.
Then, you can run something like this:
@example
-# guix archive --authorize < @var{prefix}/share/guix/@value{SUBSTITUTE-SERVER}.pub
+# guix archive --authorize < @var{prefix}/share/guix/@value{SUBSTITUTE-SERVER-1}.pub
+# guix archive --authorize < @var{prefix}/share/guix/@value{SUBSTITUTE-SERVER-2}.pub
@end example
Once this is in place, the output of a command like @code{guix build}
@@ -3782,8 +3788,8 @@ $ guix build emacs --dry-run
@noindent
The text changed from ``The following derivations would be built'' to
``112.3 MB would be downloaded''. This indicates that substitutes from
-@code{@value{SUBSTITUTE-SERVER}} are usable and will be downloaded, when
-possible, for future builds.
+the configured substitute servers are usable and will be downloaded,
+when possible, for future builds.
@cindex substitutes, how to disable
The substitute mechanism can be disabled globally by running
@@ -3817,8 +3823,9 @@ its configuration and add the URLs and substitute keys that you want
As an example, suppose you want to fetch substitutes from
@code{guix.example.org} and to authorize the signing key of that server,
-in addition to the default @code{@value{SUBSTITUTE-SERVER}}. The
-resulting operating system configuration will look something like:
+in addition to the default @code{@value{SUBSTITUTE-SERVER-1}} and
+@code{@value{SUBSTITUTE-SERVER-2}}. The resulting operating system
+configuration will look something like:
@lisp
(operating-system
@@ -3862,7 +3869,7 @@ line and list the URLs of interest (@pxref{daemon-substitute-urls,
@code{guix-daemon --substitute-urls}}):
@example
-@dots{} --substitute-urls='https://guix.example.org https://@value{SUBSTITUTE-SERVER}'
+@dots{} --substitute-urls='https://guix.example.org @value{SUBSTITUTE-URLS}'
@end example
@item
@@ -3885,10 +3892,12 @@ Again this assumes @file{key.pub} contains the public key that
@end enumerate
Now you're all set! Substitutes will be preferably taken from
-@code{https://guix.example.org}, using @code{@value{SUBSTITUTE-SERVER}}
-as a fallback. Of course you can list as many substitute servers as you
-like, with the caveat that substitute lookup can be slowed down if too
-many servers need to be contacted.
+@code{https://guix.example.org}, using
+@code{@value{SUBSTITUTE-SERVER-1}} then
+@code{@value{SUBSTITUTE-SERVER-2}} as fallback options. Of course you
+can list as many substitute servers as you like, with the caveat that
+substitute lookup can be slowed down if too many servers need to be
+contacted.
Note that there are also situations where one may want to add the URL of
a substitute server @emph{without} authorizing its key.
@@ -3976,12 +3985,12 @@ by a server.
Today, each individual's control over their own computing is at the
mercy of institutions, corporations, and groups with enough power and
determination to subvert the computing infrastructure and exploit its
-weaknesses. While using @code{@value{SUBSTITUTE-SERVER}} substitutes can be
-convenient, we encourage users to also build on their own, or even run
-their own build farm, such that @code{@value{SUBSTITUTE-SERVER}} is less of an
-interesting target. One way to help is by publishing the software you
-build using @command{guix publish} so that others have one more choice
-of server to download substitutes from (@pxref{Invoking guix publish}).
+weaknesses. While using substitutes can be convenient, we encourage
+users to also build on their own, or even run their own build farm, such
+that the project run substitute servers are less of an interesting
+target. One way to help is by publishing the software you build using
+@command{guix publish} so that others have one more choice of server to
+download substitutes from (@pxref{Invoking guix publish}).
Guix has the foundations to maximize build reproducibility
(@pxref{Features}). In most cases, independent builds of a given
@@ -4945,11 +4954,11 @@ Read a single-item archive as served by substitute servers
low-level operation needed in only very narrow use cases; see below.
For example, the following command extracts the substitute for Emacs
-served by @code{@value{SUBSTITUTE-SERVER}} to @file{/tmp/emacs}:
+served by @code{@value{SUBSTITUTE-SERVER-1}} to @file{/tmp/emacs}:
@example
$ wget -O - \
- https://@value{SUBSTITUTE-SERVER}/nar/gzip/@dots{}-emacs-24.5 \
+ https://@value{SUBSTITUTE-SERVER-1}/nar/gzip/@dots{}-emacs-24.5 \
| gunzip | guix archive -x /tmp/emacs
@end example
@@ -4971,7 +4980,7 @@ this example:
@example
$ wget -O - \
- https://@value{SUBSTITUTE-SERVER}/nar/lzip/@dots{}-emacs-26.3 \
+ https://@value{SUBSTITUTE-SERVER-1}/nar/lzip/@dots{}-emacs-26.3 \
| lzip -d | guix archive -t
@end example
@@ -10905,7 +10914,7 @@ but you are actually on an @code{x86_64} machine:
@example
$ guix build --log-file gdb -s aarch64-linux
-https://@value{SUBSTITUTE-SERVER}/log/@dots{}-gdb-7.10
+https://@value{SUBSTITUTE-SERVER-1}/log/@dots{}-gdb-7.10
@end example
You can freely access a huge library of build logs!
@@ -12558,7 +12567,7 @@ When @command{guix publish} runs, it spawns an HTTP server which allows
anyone with network access to obtain substitutes from it. This means
that any machine running Guix can also act as if it were a build farm,
since the HTTP interface is compatible with Cuirass, the software behind
-the @code{@value{SUBSTITUTE-SERVER}} build farm.
+the @code{@value{SUBSTITUTE-SERVER-1}} build farm.
For security, each substitute is signed, allowing recipients to check
their authenticity and integrity (@pxref{Substitutes}). Because
@@ -12847,12 +12856,12 @@ any given store item.
The command output looks like this:
@smallexample
-$ guix challenge --substitute-urls="https://@value{SUBSTITUTE-SERVER} https://guix.example.org"
-updating list of substitutes from 'https://@value{SUBSTITUTE-SERVER}'... 100.0%
+$ guix challenge --substitute-urls="https://@value{SUBSTITUTE-SERVER-1} https://guix.example.org"
+updating list of substitutes from 'https://@value{SUBSTITUTE-SERVER-1}'... 100.0%
updating list of substitutes from 'https://guix.example.org'... 100.0%
/gnu/store/@dots{}-openssl-1.0.2d contents differ:
local hash: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
- https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-openssl-1.0.2d: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
+ https://@value{SUBSTITUTE-SERVER-1}/nar/@dots{}-openssl-1.0.2d: 0725l22r5jnzazaacncwsvp9kgf42266ayyp814v7djxs7nk963q
https://guix.example.org/nar/@dots{}-openssl-1.0.2d: 1zy4fmaaqcnjrzzajkdn3f5gmjk754b43qkq47llbyak9z0qjyim
differing files:
/lib/libcrypto.so.1.1
@@ -12860,14 +12869,14 @@ updating list of substitutes from 'https://guix.example.org'... 100.0%
/gnu/store/@dots{}-git-2.5.0 contents differ:
local hash: 00p3bmryhjxrhpn2gxs2fy0a15lnip05l97205pgbk5ra395hyha
- https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-git-2.5.0: 069nb85bv4d4a6slrwjdy8v1cn4cwspm3kdbmyb81d6zckj3nq9f
+ https://@value{SUBSTITUTE-SERVER-1}/nar/@dots{}-git-2.5.0: 069nb85bv4d4a6slrwjdy8v1cn4cwspm3kdbmyb81d6zckj3nq9f
https://guix.example.org/nar/@dots{}-git-2.5.0: 0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
differing file:
/libexec/git-core/git-fsck
/gnu/store/@dots{}-pius-2.1.1 contents differ:
local hash: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
- https://@value{SUBSTITUTE-SERVER}/nar/@dots{}-pius-2.1.1: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
+ https://@value{SUBSTITUTE-SERVER-1}/nar/@dots{}-pius-2.1.1: 0k4v3m9z1zp8xzzizb7d8kjj72f9172xv078sq4wl73vnq9ig3ax
https://guix.example.org/nar/@dots{}-pius-2.1.1: 1cy25x1a4fzq5rk0pmvc8xhwyffnqz95h2bpvqsz2mpvlbccy0gs
differing file:
/share/man/man1/pius.1.gz
@@ -12889,7 +12898,7 @@ the servers obtained a result different from the local build.
@cindex non-determinism, in package builds
As an example, @code{guix.example.org} always gets a different answer.
-Conversely, @code{@value{SUBSTITUTE-SERVER}} agrees with local builds, except in the
+Conversely, @code{@value{SUBSTITUTE-SERVER-1}} agrees with local builds, except in the
case of Git. This might indicate that the build process of Git is
non-deterministic, meaning that its output varies as a function of
various things that Guix does not fully control, in spite of building
@@ -12905,7 +12914,7 @@ to run:
@example
guix challenge git \
--diff=diffoscope \
- --substitute-urls="https://@value{SUBSTITUTE-SERVER} https://guix.example.org"
+ --substitute-urls="https://@value{SUBSTITUTE-SERVER-1} https://guix.example.org"
@end example
This automatically invokes @command{diffoscope}, which displays detailed
@@ -12915,14 +12924,14 @@ Alternatively, we can do something along these lines (@pxref{Invoking guix
archive}):
@example
-$ wget -q -O - https://@value{SUBSTITUTE-SERVER}/nar/lzip/@dots{}-git-2.5.0 \
+$ wget -q -O - https://@value{SUBSTITUTE-SERVER-1}/nar/lzip/@dots{}-git-2.5.0 \
| lzip -d | guix archive -x /tmp/git
$ diff -ur --no-dereference /gnu/store/@dots{}-git.2.5.0 /tmp/git
@end example
This command shows the difference between the files resulting from the
local build, and the files resulting from the build on
-@code{@value{SUBSTITUTE-SERVER}} (@pxref{Overview, Comparing and Merging Files,,
+@code{@value{SUBSTITUTE-SERVER-1}} (@pxref{Overview, Comparing and Merging Files,,
diffutils, Comparing and Merging Files}). The @command{diff} command
works great for text files. When binary files differ, a better option
is @uref{https://diffoscope.org/, Diffoscope}, a tool that helps
@@ -12937,7 +12946,7 @@ In the meantime, @command{guix challenge} is one tool to help address
the problem.
If you are writing packages for Guix, you are encouraged to check
-whether @code{@value{SUBSTITUTE-SERVER}} and other substitute servers obtain the
+whether @code{@value{SUBSTITUTE-SERVER-1}} and other substitute servers obtain the
same build result as you did with:
@example
@@ -13218,14 +13227,14 @@ on @var{a} and @var{a} has no substitutes, only @var{a} is listed, even though
@var{b} usually lacks substitutes as well. The result looks like this:
@example
-$ guix weather --substitute-urls=@value{SUBSTITUTE-URL} -c 10
+$ guix weather --substitute-urls=@value{SUBSTITUTE-URLS} -c 10
computing 8,983 package derivations for x86_64-linux...
-looking for 9,343 store items on @value{SUBSTITUTE-URL}...
-updating substitutes from '@value{SUBSTITUTE-URL}'... 100.0%
-@value{SUBSTITUTE-URL}
+looking for 9,343 store items on @value{SUBSTITUTE-URLS}...
+updating substitutes from '@value{SUBSTITUTE-URLS}'... 100.0%
+@value{SUBSTITUTE-URLS}
64.7% substitutes available (6,047 out of 9,343)
@dots{}
-2502 packages are missing from '@value{SUBSTITUTE-URL}' for 'x86_64-linux', among which:
+2502 packages are missing from '@value{SUBSTITUTE-URLS}' for 'x86_64-linux', among which:
58 kcoreaddons@@5.49.0 /gnu/store/@dots{}-kcoreaddons-5.49.0
46 qgpgme@@1.11.1 /gnu/store/@dots{}-qgpgme-1.11.1
37 perl-http-cookiejar@@0.008 /gnu/store/@dots{}-perl-http-cookiejar-0.008
@@ -13234,7 +13243,7 @@ updating substitutes from '@value{SUBSTITUTE-URL}'... 100.0%
What this example shows is that @code{kcoreaddons} and presumably the 58
packages that depend on it have no substitutes at
-@code{@value{SUBSTITUTE-SERVER}}; likewise for @code{qgpgme} and the 46
+@code{@value{SUBSTITUTE-SERVER-1}}; likewise for @code{qgpgme} and the 46
packages that depend on it.
If you are a Guix developer, or if you are taking care of this build farm,
@@ -15441,7 +15450,9 @@ Number of build user accounts to create.
@item @code{authorize-key?} (default: @code{#t})
@cindex substitutes, authorization thereof
Whether to authorize the substitute keys listed in
-@code{authorized-keys}---by default that of @code{@value{SUBSTITUTE-SERVER}}
+@code{authorized-keys}---by default that of
+@code{@value{SUBSTITUTE-SERVER-1}} and
+@code{@value{SUBSTITUTE-SERVER-2}}
(@pxref{Substitutes}).
When @code{authorize-key?} is true, @file{/etc/guix/acl} cannot be
@@ -15462,8 +15473,9 @@ allowed for in-place modifications to @file{/etc/guix/acl}.
@item @code{authorized-keys} (default: @code{%default-authorized-guix-keys})
The list of authorized key files for archive imports, as a list of
string-valued gexps (@pxref{Invoking guix archive}). By default, it
-contains that of @code{@value{SUBSTITUTE-SERVER}} (@pxref{Substitutes}).
-See @code{substitute-urls} below for an example on how to change it.
+contains that of @code{@value{SUBSTITUTE-SERVER-1}} and
+@code{@value{SUBSTITUTE-SERVER-2}} (@pxref{Substitutes}). See
+@code{substitute-urls} below for an example on how to change it.
@item @code{use-substitutes?} (default: @code{#t})
Whether to use substitutes.
@@ -15472,7 +15484,7 @@ Whether to use substitutes.
The list of URLs where to look for substitutes by default.
Suppose you would like to fetch substitutes from @code{guix.example.org}
-in addition to @code{@value{SUBSTITUTE-SERVER}}. You will need to do
+in addition to @code{@value{SUBSTITUTE-SERVER-1}}. You will need to do
two things: (1) add @code{guix.example.org} to @code{substitute-urls},
and (2) authorize its signing key, having done appropriate checks
(@pxref{Substitute Server Authorization}). The configuration below does
diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 44448ff3e9..3ea1c73e10 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -643,7 +643,8 @@ found."
(#f
;; This can only happen when this script is not invoked by the
;; daemon.
- '("http://ci.guix.gnu.org"))))
+ '("http://ci.guix.gnu.org"
+ "http://bordeaux.guix.gnu.org"))))
;; In order to prevent using large number of discovered local substitute
;; servers, limit the local substitute urls list size.
diff --git a/guix/store.scm b/guix/store.scm
index b761264ac0..1ab2b08b47 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -787,7 +787,8 @@ encoding conversion errors."
(map (if (false-if-exception (resolve-interface '(gnutls)))
(cut string-append "https://" <>)
(cut string-append "http://" <>))
- '("ci.guix.gnu.org")))
+ '("ci.guix.gnu.org"
+ "bordeaux.guix.gnu.org")))
(define (current-user-name)
"Return the name of the calling user."
--
2.31.1
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