Images recipes for Raspberry Pi 64b

Added recipes for RPi 3/4 in 64b mode booted via u-boot -- both for APT and ostree images.

Added gitlab-ci to integrate images into pipeline. No tests added since we have no test boards in LAVA.

Generated images tested manually.

apertis-image-rpi64.yaml

+{{ $architecture := or .architecture "arm64" }}
+{{ $type := or .type "minimal" }}
+{{ $suite := or .suite "v2021dev3" }}
+{{ $ospack := or .ospack (printf "ospack_%s-%s-%s" $suite $architecture $type) }}
+{{ $image := or .image (printf "apertis_%s-%s-%s-rpi64" $suite $type $architecture) }}
+
+{{ $cmdline := or .cmdline " rootwait ro quiet splash plymouth.ignore-serial-consoles fsck.mode=auto fsck.repair=yes" }}
+
+{{ $demopack := or .demopack "disabled" }}
+{{ if eq $type "minimal" }}
+{{ $demopack := "disabled" }}
+{{ end }}
+
+{{- $unpack := or .unpack "true" }}
+
+architecture: {{ $architecture }}
+
+actions:
+{{- if eq $unpack "true" }}
+  - action: unpack
+    description: Unpack {{ $ospack }}
+    compression: gz
+    file: {{ $ospack }}.tar.gz
+{{- end }}
+
+  - action: image-partition
+    imagename: {{ $image }}.img
+{{ if eq $type "minimal" }}
+    imagesize: 4G
+{{ else }}
+    imagesize: 15G
+{{end}}
+    partitiontype: msdos
+    mountpoints:
+      - mountpoint: /
+        partition: system
+      - mountpoint: /boot
+        partition: boot
+        options: [ x-systemd.automount ]
+      - mountpoint: /boot/firmware
+        partition: firmware
+        buildtime: true
+      - mountpoint: /home
+        partition: general_storage
+
+    partitions:
+      - name: firmware
+        fs: vfat
+        start: 0%
+        end: 64M
+      - name: boot
+        fs: ext2
+        start: 64M
+        end: 256M
+        flags: [ boot ]
+      - name: system
+        fs: ext4
+        start: 256M
+        end: 3000M
+      - name: general_storage
+        fs: ext4
+        start: 3000M
+        end: 100%
+
+  - action: filesystem-deploy
+    setup-kernel-cmdline: true
+    append-kernel-cmdline: {{ $cmdline }}
+    description: Deploying ospack onto image
+
+  - action: overlay
+    source: overlays/reset-uboot-bootcount
+
+  # on arm64 the initramfs post-install does not call zz-u-boot-menu from
+  # u-boot-menupackage when it is installed at the same time as the kernel
+  # work around it by installing the the boot configuration tools first
+  # see https://phabricator.apertis.org/T6325
+  - action: apt
+    description: Boot configuration packages
+    packages:
+      - initramfs-tools
+      - u-boot-menu
+
+  - action: apt
+    description: Kernel and system packages
+    packages:
+      - linux-image-{{$architecture}}
+      - e2fsprogs
+
+  - action: apt
+    description: U-Boot package
+    packages:
+      - u-boot-rpi
+
+  - action: apt
+    description: Firmware packages
+    packages:
+      - raspi-firmware
+      - firmware-brcm80211
+
+  - action: run
+    description: Install Raspberry Pi boot firmware
+    chroot: true
+    command: sh -c "cp -av /usr/lib/raspi-firmware/* /boot/firmware/"
+
+  - action: run
+    description: Install U-Boot
+    chroot: true
+    command:  sh -c "cp -av /usr/lib/u-boot/rpi_arm64/u-boot.bin /boot/firmware/"
+
+  - action: overlay
+    description: Copy config.txt
+    source: overlays/raspberrypi/firmware
+    destination: /boot/firmware
+
+  - action: run
+    description: Copy DTBs from the kernel
+    chroot: true
+    command:  sh -c "cp -av boot/dtbs/*-arm64/broadcom/* /boot/firmware/"
+
+  # Add multimedia demo pack
+  # Provide URL via '-t demopack:"https://images.apertis.org/media/multimedia-demo.tar.gz"'
+  # to add multimedia demo files
+  {{ if ne $demopack "disabled" }}
+  # Use wget to get some insight about https://phabricator.collabora.com/T11930
+  # TODO: Revert to a download action once the cause is found
+  - action: run
+    description: Download multimedia demo pack
+    chroot: false
+    command: wget --debug {{ $demopack }} -O "${ARTIFACTDIR}/multimedia-demo.tar.gz"
+
+  - action: unpack
+    description: Unpack multimedia demo pack
+    compression: gz
+    file: multimedia-demo.tar.gz
+
+  - action: run
+    description: Clean up multimedia demo pack tarball
+    chroot: false
+    command: rm "${ARTIFACTDIR}/multimedia-demo.tar.gz"
+  {{ end }}
+
+
+  - action: run
+    description: "Save installed package status"
+    chroot: false
+    command: gzip -c "${ROOTDIR}/var/lib/dpkg/status" > "${ARTIFACTDIR}/{{ $image }}.img.pkglist.gz"
+
+  - action: run
+    description: Cleanup /var/lib
+    script: scripts/remove_var_lib_parts.sh
+
+  # the clearing of machine-id can't be done before this point since
+  # systemd-boot requires the machine-id to be set for reasons related to
+  # dual-boot scenarios:
+  # * to avoid conflicts when creating entries, see the `90-loaderentry` kernel
+  #   install trigger
+  # * to set the entries for the currently booted installation as default in
+  #   the loader.conf generated by `bootctl install`
+  #
+  # in our image this is not useful, as the actual machine-id is supposed to be
+  # uniquely generated on the first boot. however the impact is negligible, as
+  # things still work albeit the code used to potentially disambiguate entries
+  # doesn't match a real machine-id
+  - action: run
+    chroot: false
+    description: "Empty /etc/machine-id so it's regenerated on first boot with an unique value"
+    command: truncate -s0 "${ROOTDIR}/etc/machine-id"
+
+  - action: run
+    description: List files on {{ $image }}
+    chroot: false
+    script: scripts/list-files "$ROOTDIR" | gzip > "${ARTIFACTDIR}/{{ $image }}.img.filelist.gz"
+
+  - action: run
+    description: Create block map for {{ $image }}.img
+    postprocess: true
+    command: bmaptool create {{ $image }}.img > {{ $image }}.img.bmap
+
+  - action: run
+    description: Compress {{ $image }}.img
+    postprocess: true
+    command: gzip -f {{ $image }}.img
+
+  - action: run
+    description: Checksum for {{ $image }}.img.gz
+    postprocess: true
+    command: sha256sum {{ $image }}.img.gz > {{ $image }}.img.gz.sha256