lxc-alpine: make --release work when apk exists

Use sed to set the specified alpine release in the copied
/etc/apk/repositories

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

diff --git a/templates/lxc-alpine.in b/templates/lxc-alpine.in
index 410c817de4e321b12bd24ae8d986991016f4ef94..be2a5357f72de1ac6f6d9f5dbbbf704bca9c1099 100644 (file)
--- a/templates/lxc-alpine.in
+++ b/templates/lxc-alpine.in
@@ -84,6 +84,10 @@ install_alpine() {
         echo "$repository" > "$rootfs"/etc/apk/repositories
     else
         cp /etc/apk/repositories "$rootfs"/etc/apk/repositories || return 1
+        if [ -n "$release" ]; then
+            sed -i -e "s:/[^/]\+/\([^/]\+\)$:/$release/\1:" \
+                "$rootfs"/etc/apk/repositories
+        fi
     fi
     opt_arch=
     if [ -n "$apk_arch" ]; then