Set up the files to write to the image.

scripts/build_image/build_alpine.bash

@@ -7,12 +7,27 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 ############## Setup #########################
 
 function cleanup {
+    for f in "${jails[@]}"; do
+        >&2 echo "Stopping jail $f"
+        sudo jail -r "$f"
+    done
+    for f in "${mountedfolders[@]}"; do
+        >&2 echo "Unmounting folder $f"
+        umount "$f"
+    done
+    for f in "${memorydevices[@]}"; do
+        >&2 echo "Removing memory device $f"
+        mdconfig -d -u "$f"
+    done
     for f in "${folders[@]}"; do
         >&2 echo "Deleting $f"
-        rm -rf "$f"
+        sudo rm -rf "$f"
     done
 }
 folders=()
+jails=()
+memorydevices=()
+mountedfolders=()
 for sig in EXIT INT QUIT HUP TERM; do
   trap "set +e; cleanup" "$sig"
 done
@@ -123,20 +138,6 @@ function precheck {
     done
 }
 
-function make_chroot {
-    bsdtar -C "$chroot" -xpf "${download_directory}/${ALPINE_TARBALL}"
-
-    # Steal the DNS info from the host
-    (umask 022 && resolvconf -l > "${chroot}/etc/resolv.conf")
-
-    # Enter the jail
-    # install mkinitfs
-    sudo jail -c path="$chroot" ip4=inherit ip6=inherit host=inherit allow.raw_sockets=true command=/bin/sh
-
-    # Remove the resolv.conf file since it should get populated via dhcp
-    rm "${chroot}/etc/resolv.conf"
-}
-
 function download_alpine {
     if [ "$LOCAL_DEV" == "true" ] && [ -e "${NETIZEN_CACHE}/${ALPINE_TARBALL}" ]; then
         # Cache for local development to avoid stressing alpine servers
@@ -156,6 +157,43 @@ function download_alpine {
     gpg --no-default-keyring --keyring "$keyring" --trust-model always --verify <(cat <<<"$ALPINE_SIGNATURE") "${download_directory}/${ALPINE_TARBALL}"
 }
 
+function make_chroot {
+    bsdtar -C "$chroot" -xpf "${download_directory}/${ALPINE_TARBALL}"
+
+    # Steal the DNS info from the host
+    (umask 022 && resolvconf -l > "${chroot}/etc/resolv.conf")
+
+    # Enter the jail
+    # install mkinitfs
+    jid=$(sudo jail -c -i path="$chroot" ip4=inherit ip6=inherit host=inherit allow.raw_sockets=true persist)
+    jails+=("$jid")
+
+    sudo jexec "$jid" apk add --no-cache mkinitfs docker linux-virt
+    sudo jexec "$jid" apk add --no-cache --repository 'http://dl-cdn.alpinelinux.org/alpine/edge/testing' refind
+    sudo jexec "$jid" mkinitfs -c /etc/mkinitfs/mkinitfs.conf -b / 5.15.16-0-virt
+    sudo jexec "$jid" mkdir /boot/efi
+    sudo jexec "$jid" cp -r /usr/share/refind /boot/efi/boot
+    sudo jexec "$jid" cp /boot/efi/boot/refind_x64.efi /boot/efi/boot/bootx64.efi
+    (umask 022 && sudo tee "${chroot}/boot/refind_linux.conf" <<EOF
+"Boot normal"              "rw root=PARTLABEL=DIB console=ttyS0,115200"
+EOF
+    )
+    # Open shell to look/experiment
+    # sudo jexec "$jid" /bin/sh
+
+    # Remove the resolv.conf file since it should get populated via dhcp
+    rm "${chroot}/etc/resolv.conf"
+}
+
+function make_image {
+    dd if=/dev/zero of="$image_file" bs=1 count=0 seek=10G
+    # image_device=$(mdconfig -a -t vnode -f "$image_file")
+    local image_device=$(mdconfig -f "$image_file")
+    memorydevices+=("$image_device")
+
+    # mountedfolders+=("$mount_directory")
+}
+
 function main {
     precheck
 
@@ -170,6 +208,15 @@ function main {
     mkdir "$chroot"
     log "Building chroot in $chroot"
     make_chroot
+
+    image_directory="${work_directory}/images"
+    mount_directory="${work_directory}/mount"
+    mkdir "$image_directory" "$mount_directory"
+    image_file="$image_directory/dib.img"
+    make_image
+
+    log "Copying final image to $DIR"
+    cp "$image_file" "$DIR"
 }
 
 main