create a boot image for httpd

Build a boot image, which helps to run Hermit with
a classical could infrastructure.

Author: stlankes

.github/workflows/publish.yml

@@ -4,17 +4,26 @@ on:
   push:
     branches:
       - main
+      - uefi
 
 env:
   GH_TOKEN: ${{ github.token }}
   CARGO_TERM_COLOR: always
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   publish_image:
     name: Publish container image
     runs-on: ubuntu-latest
 
     steps:
+    - name: Install Packages
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y fdisk qemu-utils
     - uses: actions/checkout@v6
       with:
         submodules: true
@@ -32,6 +41,7 @@ jobs:
       run: |
         gh release download --repo hermit-os/loader --pattern hermit-loader-x86_64
         gh release download --repo hermit-os/loader --pattern hermit-loader-x86_64-fc
+        gh release download --repo hermit-os/loader --pattern hermit-loader-x86_64.efi
     - name: Create dockerfile for rusty_demo
       run: |
         cat << END > Dockerfile
@@ -47,6 +57,27 @@ jobs:
         context: .
         push: true
         tags: ghcr.io/hermit-os/rusty_demo:latest
+    - name: Build httpd
+      run: cargo build -Zbuild-std=std,panic_abort --target x86_64-unknown-hermit -p httpd --features hermit/dhcpv4,hermit/virtio-net --release
+    - name: Create bootable image for httpd
+      run: |
+        dd if=/dev/zero of=httpd.raw bs=1k count=1M conv=sparse
+        echo "label: gpt" > partition_table.txt
+        echo ",,U,*;" >> partition_table.txt # UEFI System Partition
+        sfdisk --no-reread -f httpd.raw < partition_table.txt
+        sudo losetup -fP httpd.raw
+        lsblk
+        sudo mkfs.fat -F32 /dev/loop0p1
+        sudo mkdir -p /mnt/esp
+        sudo mount /dev/loop0p1 /mnt/esp
+        sudo mkdir -p /mnt/esp/efi/boot
+        sudo cp target/x86_64-unknown-hermit/release/httpd /mnt/esp/efi/boot/hermit-app
+        sudo cp hermit-loader-x86_64.efi /mnt/esp/efi/boot/bootx64.efi
+        sudo umount /mnt/esp
+        sudo losetup -d /dev/loop0
+        tar --format=oldgnu -Sczf httpd.tar.gz httpd.raw
+        qemu-img convert -f raw -O qcow2 httpd.raw httpd.qcow2
+        gh release create v0.0.1 --draft --notes 'UEFI disk images to boot Hermit-OS applications' --title 'httpd disk images' httpd.qcow2 httpd.tar.gz
     - name: Build httpd
       run: cargo build -Zbuild-std=std,panic_abort --target x86_64-unknown-hermit -p httpd --features hermit/dhcpv4 --release
     - name: Copy httpd out of target dir