.gitlab/ci/build-host.sh:
Change parameters to qemu's `-drive` option to make use of the explicit `read-only=on`, as the implicit `read-only` is
now obsolete.
.gitlab/ci/build-inside-vm.sh:
Create an ephemeral signing key for signing the rootfs image (e.g. squashfs or erofs) when building the profiles.
Implements #125
.gitlab/ci/build-host.sh:
Change the readonly TMPDIR variable to a global tmpdir variable and set it in the `init()` function.
.gitlab/ci/build-inside-vm.sh:
Change assigning the readonly tmpdir variable directly to assigning it after declaring it.
Change `cleanup()` and `create_zsync_delta()` to use bash-style statements and also check whether SUDO_GID is set before
using it.
.gitlab/ci/build-host.sh:
Set shebang to /usr/bin/env bash to be more portable/flexible.
Turn all posix statements ([]) to bash style statements ([[]]), as we are using bash.
Terminate the list of parameters to rm or cp with --.
Replace the implementation of finding a local ISO to use with one that relies on a sorted list of potential images.
Use virtio-net-pci for networking with qemu.
Set the cow_spacesize to 4G for the archiso environment.
Use --needed in the call to pacman to not re-install already up-to-date targets.
Attempt a full system upgrade (but ignore the kernel).
Increase the timeout for when installing packages to the archiso environment using pacman to 120s, as a system upgrade
is being done as well.
Use systemctl poweroff -i to shut down the virtual machine as it is more future proof and robust.
.gitlab/ci/build-host.sh:
Add script to be run in a container with access to qemu.
It is a slight modification of arch-boxes' build-host.sh script to cater to the specific archiso requirements.
.gitlab/ci/build-inside-vm.sh:
Add script to be run in virtualized environment, established by build-host.sh.
This script builds the actual archiso profiles and creates checksum for the resulting image files.
