docs: Update for bootc upstream site move

- Make this a variable substitition in case we do another change
- Fix it to use the new site

Signed-off-by: Colin Walters <walters@verbum.org>

antora.yml

@@ -14,5 +14,6 @@ asciidoc:
     container-fedora-full: quay.io/fedora/fedora-bootc:41
     bootc-image-builder: https://github.com/osbuild/bootc-image-builder
     bib-image: quay.io/centos-bootc/bootc-image-builder:latest
+    bootc-upstream: https://bootc-dev.github.io/bootc/
     git-examples: https://gitlab.com/fedora/bootc/examples/-/blob/main/
     podman-docs: https://docs.podman.io/en/latest/markdown

modules/ROOT/nav.adoc

@@ -49,4 +49,4 @@
 ** xref:linux-desktops.adoc[Linux desktops]
 ** xref:fedora-coreos.adoc[Fedora CoreOS]
 * Projects documentation
-** https://github.com/containers/bootc[bootc]
+** {bootc-upstream}[bootc]

modules/ROOT/pages/authentication.adoc

@@ -80,7 +80,7 @@ https://systemd.io/USER_RECORD/[JSON user records] for users is preferred.
 
 == Upstream bootc user/group recommendations
 
-For more, see https://containers.github.io/bootc/building/users-and-groups.html[bootc generic user/group guidance].
+For more, see {bootc-upstream}building/users-and-groups.html[bootc generic user/group guidance].
 
 === The osbuild-cfg project
 

modules/ROOT/pages/auto-updates.adoc

@@ -2,7 +2,7 @@
 
 == bootc
 
-{projname} provides atomic updates and rollbacks via https://github.com/containers/bootc[bootc] deployments
+{projname} provides atomic updates and rollbacks via {bootc-upstream}[bootc] deployments
 for the host system.
 
 By default, the OS performs continual auto-updates via a stock copy of the upstream

modules/ROOT/pages/community.adoc

@@ -41,6 +41,6 @@ https://gitlab.com/fedora/bootc/tracker/-/tree/main/meeting-notes?ref_type=heads
 
 == Other community forums
 
-There is also https://github.com/containers/bootc/discussions[bootc upstream discussions].
+There is also {bootc-upstream}/discussions[bootc upstream discussions].
 
 

modules/ROOT/pages/embedding-containers.adoc

@@ -15,4 +15,4 @@ be updated and versioned distinct from the base bootc image.
 == Example configuration 
 
 We are currently working on best-practices. Please refer to
-https://github.com/containers/bootc/issues/644[issue bootc#644] for details.
+{bootc-upstream}/issues/644[issue bootc#644] for details.

modules/ROOT/pages/index.adoc

@@ -1,6 +1,6 @@
 = {projname} Documentation
 
-The {projname} project generates reference "base images" of so-called bootable containers that are designed for use with the https://github.com/containers/bootc[bootc project].
+The {projname} project generates reference "base images" of so-called bootable containers that are designed for use with the {bootc-upstream}[bootc project].
 
 {projname} is an open source project associated with the link:https://fedoraproject.org/[Fedora Project] and the link:https://www.centos.org[CentOS Project].
 

modules/ROOT/pages/rpm-ostree.adoc

@@ -2,7 +2,7 @@
 
 == bootc
 
-The main focus of {projname} is on https://github.com/containers/bootc[bootc]. However,
+The main focus of {projname} is on {bootc-upstream}[bootc]. However,
 the "full" base image currently includes https://github.com/coreos/rpm-ostree/[rpm-ostree]
 which shares a lot of the same underlying code from the https://github.com/ostreedev/ostree-rs-ext/[ostree]
 project.