feat(library): Introduce Python 3.12 as library (#25)

Reviewed-by: Stefan Jumarea <[email protected]>
Approved-by: Stefan Jumarea <[email protected]>

.github/workflows/library-python3.12.yaml

@@ -0,0 +1,73 @@
+name: library/python3.12
+
+on:
+  schedule:
+  - cron: '0 0 * * *' # Everyday at 12AM
+
+  push:
+    branches: [main]
+    paths:
+    - 'library/python/3.12/**'
+    - '.github/workflows/library-python3.12.yaml'
+
+  pull_request:
+    types: [opened, synchronize, reopened]
+    branches: [main]
+    paths:
+    - 'library/python/3.12/**'
+    - '.github/workflows/library-python3.12.yaml'
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - plat: qemu
+          arch: x86_64
+        - plat: fc
+          arch: x86_64
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Build python3.12
+      uses: unikraft/kraftkit@staging
+      with:
+        loglevel: debug
+        workdir: library/python/3.12
+        runtimedir: /github/workspace/.kraftkit
+        plat: ${{ matrix.plat }}
+        arch: ${{ matrix.arch }}
+        push: false
+        output: oci://index.unikraft.io/unikraft.org/python:3.12
+
+    - name: Archive OCI digests
+      uses: actions/upload-artifact@v3
+      with:
+        name: oci-digests-${{ matrix.arch }}-${{ matrix.plat }}
+        path: ${{ github.workspace }}/.kraftkit/oci/digests
+        if-no-files-found: error
+
+  push:
+    if: ${{ github.event_name == 'push' || github.event_name == 'schedule' }}
+    needs: [ build ]
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Login to OCI registry
+      uses: docker/login-action@v2
+      with:
+        registry: index.unikraft.io
+        username: ${{ secrets.REG_USERNAME }}
+        password: ${{ secrets.REG_TOKEN }}
+
+    - name: Retrieve, merge and push OCI digests
+      uses: ./.github/actions/merge-oci-digests
+      with:
+        name: index.unikraft.io/unikraft.org/python:3.12
+        push: true

README.md

@@ -40,6 +40,7 @@ kraft pkg ls --apps --update
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.15.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.15.yaml) | [`unikraft.org/nginx:1.15`](library/nginx/1.15) |
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.25.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-nginx1.25.yaml) | [`unikraft.org/nginx:1.25`](library/nginx/1.25) |
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-python3.10.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-python3.10.yaml) | [`unikraft.org/python:3.10`](library/python/3.10) |
+| [![](https://github.com/unikraft/catalog/actions/workflows/library-python3.12.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-python3.12.yaml) | [`unikraft.org/python:3.12`](library/python/3.12) |
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-redis7.0.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-redis7.0.yaml) | [`unikraft.org/redis:7.0`](library/redis/7.0) |
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-lua5.4.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-lua5.4.yaml) | [`unikraft.org/lua:5.4`](library/lua/5.4) |
 | [![](https://github.com/unikraft/catalog/actions/workflows/library-node18.yaml/badge.svg)](https://github.com/unikraft/catalog/actions/workflows/library-node18.yaml) | [`unikraft.org/node:18`](library/node/18) |

library/python/3.12/Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3.12 AS build
+
+RUN /usr/sbin/ldconfig /usr/local/lib
+
+FROM scratch
+
+COPY --from=build /usr/local/lib /usr/local/lib
+COPY --from=build /usr/local/bin/python3 /usr/bin/python3
+COPY --from=build /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6
+COPY --from=build /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/libm.so.6
+COPY --from=build /usr/lib/x86_64-linux-gnu/libz.so.1 /usr/lib/x86_64-linux-gnu/libz.so.1
+COPY --from=build /lib64/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2
+COPY --from=build /etc/ld.so.cache /etc/ld.so.cache
+
+COPY ./server.py /src/server.py

library/python/3.12/Kraftfile

@@ -0,0 +1,140 @@
+spec: v0.6
+
+name: python
+
+rootfs: ./Dockerfile
+
+cmd: ["/usr/bin/python3", "/src/server.py"]
+
+template:
+  source: https://github.com/unikraft/app-elfloader.git
+  version: staging
+
+unikraft:
+  version: staging
+  kconfig:
+    # Configurations options for app-elfloader
+    # (they can't be part of the template atm)
+    CONFIG_APPELFLOADER_ARCH_PRCTL: 'y'
+    CONFIG_APPELFLOADER_BRK: 'y'
+    CONFIG_APPELFLOADER_CUSTOMAPPNAME: 'y'
+    CONFIG_APPELFLOADER_STACK_NBPAGES: 128
+    CONFIG_APPELFLOADER_VFSEXEC_EXECBIT: 'n'
+    CONFIG_APPELFLOADER_VFSEXEC: 'y'
+    CONFIG_APPELFLOADER_HFS: 'y'
+    CONFIG_APPELFLOADER_HFS_ETCRESOLVCONF: 'y'
+    CONFIG_APPELFLOADER_HFS_ETCHOSTS: 'y'
+    CONFIG_APPELFLOADER_HFS_ETCHOSTNAME: 'y'
+    CONFIG_APPELFLOADER_HFS_REPLACEEXIST: 'y'
+    # Unikraft options
+    CONFIG_HAVE_PAGING_DIRECTMAP: 'y'
+    CONFIG_HAVE_PAGING: 'y'
+    CONFIG_I8042: 'y'
+    CONFIG_LIBDEVFS_AUTOMOUNT: 'y'
+    CONFIG_LIBDEVFS_DEV_NULL: 'y'
+    CONFIG_LIBDEVFS_DEV_STDOUT: 'y'
+    CONFIG_LIBDEVFS_DEV_ZERO: 'y'
+    CONFIG_LIBDEVFS: 'y'
+    CONFIG_LIBPOSIX_ENVIRON_ENVP0: "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+    CONFIG_LIBPOSIX_ENVIRON_ENVP1: "LD_LIBRARY_PATH=/usr/local/lib:/usr/lib:/lib"
+    CONFIG_LIBPOSIX_ENVIRON_ENVP2: "HOME=/"
+    CONFIG_LIBPOSIX_ENVIRON: 'y'
+    CONFIG_LIBPOSIX_EVENTFD: 'y'
+    CONFIG_LIBPOSIX_FDIO: 'y'
+    CONFIG_LIBPOSIX_FDTAB: 'y'
+    CONFIG_LIBPOSIX_FUTEX: 'y'
+    CONFIG_LIBPOSIX_MMAP: 'y'
+    CONFIG_LIBPOSIX_NETLINK: 'y'
+    CONFIG_LIBPOSIX_PIPE: 'y'
+    CONFIG_LIBPOSIX_POLL: 'y'
+    CONFIG_LIBPOSIX_PROCESS_CLONE: 'y'
+    CONFIG_LIBPOSIX_SOCKET: 'y'
+    CONFIG_LIBPOSIX_SYSINFO: 'y'
+    CONFIG_LIBPOSIX_TIME: 'y'
+    CONFIG_LIBPOSIX_TIMERFD: 'y'
+    CONFIG_LIBPOSIX_UNIXSOCKET: 'y'
+    CONFIG_LIBPOSIX_USER_GID: 0
+    CONFIG_LIBPOSIX_USER_GROUPNAME: "root"
+    CONFIG_LIBPOSIX_USER_UID: 0
+    CONFIG_LIBPOSIX_USER_USERNAME: "root"
+    CONFIG_LIBPOSIX_USER: 'y'
+    CONFIG_LIBRAMFS: 'y'
+    CONFIG_LIBSYSCALL_SHIM_HANDLER_ULTLS: 'y'
+    CONFIG_LIBSYSCALL_SHIM_HANDLER: 'y'
+    CONFIG_LIBSYSCALL_SHIM_LEGACY_VERBOSE: 'y'
+    CONFIG_LIBSYSCALL_SHIM: 'y'
+    CONFIG_LIBUKALLOCPOOL: 'y'
+    CONFIG_LIBUKBLKDEV_SYNC_IO_BLOCKED_WAITING: 'y'
+    CONFIG_LIBUKBLKDEV: 'y'
+    CONFIG_LIBUKBOOT_BANNER_MINIMAL: 'y'
+    CONFIG_LIBUKBOOT_HEAP_BASE: '0x400000000'
+    CONFIG_LIBUKBOOT_MAINTHREAD: 'y'
+    CONFIG_LIBUKBOOT_SHUTDOWNREQ_HANDLER: 'y'
+    CONFIG_LIBUKCPIO: 'y'
+    CONFIG_LIBUKDEBUG_CRASH_SCREEN: 'y'
+    CONFIG_LIBUKDEBUG_ENABLE_ASSERT: 'y'
+    CONFIG_LIBUKDEBUG_PRINT_SRCNAME: 'n'
+    CONFIG_LIBUKDEBUG_PRINT_TIME: 'y'
+    CONFIG_LIBUKDEBUG_PRINTK_ERR: 'y'
+    CONFIG_LIBUKDEBUG_PRINTK: 'y'
+    CONFIG_LIBUKDEBUG: 'y'
+    CONFIG_LIBUKFALLOC: 'y'
+    CONFIG_LIBUKMPI: 'n'
+    CONFIG_LIBUKSIGNAL: 'y'
+    CONFIG_LIBUKSWRAND_DEVFS: 'y'
+    CONFIG_LIBUKSWRAND: 'y'
+    CONFIG_LIBUKVMEM_DEFAULT_BASE: '0x0000001000000000'
+    CONFIG_LIBUKVMEM_DEMAND_PAGE_IN_SIZE: 12
+    CONFIG_LIBUKVMEM_PAGEFAULT_HANDLER_PRIO: 4
+    CONFIG_LIBUKVMEM: 'y'
+    CONFIG_LIBVFSCORE_AUTOMOUNT_CI_EINITRD: 'y'
+    CONFIG_LIBVFSCORE_AUTOMOUNT_CI: 'y'
+    CONFIG_LIBVFSCORE_AUTOMOUNT_UP: 'y'
+    CONFIG_LIBVFSCORE_AUTOMOUNT: 'y'
+    CONFIG_LIBVFSCORE_NONLARGEFILE: 'y'
+    CONFIG_LIBVFSCORE_ROOTFS_EINITRD: 'y'
+    CONFIG_LIBVFSCORE: 'y'
+    CONFIG_OPTIMIZE_DEADELIM: 'y'
+    CONFIG_OPTIMIZE_LTO: 'y'
+    CONFIG_PAGING: 'y'
+    CONFIG_STACK_SIZE_PAGE_ORDER: 4 # 128 * 4K = 512K
+    CONFIG_UKPLAT_KSP_SIZE: 32768
+    CONFIG_UKPLAT_MEMREGION_MAX_COUNT: 64
+    CONFIG_LIBUKNETDEV_EINFO_LIBPARAM: 'y'
+
+    # Debug options
+    # CONFIG_LIBUKDEBUG_PRINTD: 'y'
+    # CONFIG_LIBUKDEBUG_PRINTK_INFO: 'y'
+    # CONFIG_LIBSYSCALL_SHIM_STRACE: 'y'
+    # CONFIG_LIBSYSCALL_SHIM_DEBUG: 'y'
+
+libraries:
+  lwip:
+    source: https://github.com/unikraft/lib-lwip.git
+    version: staging
+    kconfig:
+      CONFIG_LWIP_LOOPIF: 'y'
+      CONFIG_LWIP_UKNETDEV: 'y'
+      CONFIG_LWIP_LOOPBACK: 'y'
+      CONFIG_LWIP_TCP: 'y'
+      CONFIG_LWIP_UDP: 'y'
+      CONFIG_LWIP_RAW: 'y'
+      CONFIG_LWIP_WND_SCALE: 'y'
+      CONFIG_LWIP_TCP_KEEPALIVE: 'y'
+      CONFIG_LWIP_THREADS: 'y'
+      CONFIG_LWIP_HEAP: 'y'
+      CONFIG_LWIP_SOCKET: 'y'
+      CONFIG_LWIP_AUTOIFACE: 'y'
+      CONFIG_LWIP_IPV4: 'y'
+      CONFIG_LWIP_DHCP: 'y'
+      CONFIG_LWIP_DNS: 'y'
+      CONFIG_LWIP_NUM_TCPCON: 64
+      CONFIG_LWIP_NUM_TCPLISTENERS: 64
+      CONFIG_LWIP_ICMP: 'y'
+  libelf:
+    source: https://github.com/unikraft/lib-libelf.git
+    version: staging
+
+targets:
+- fc/x86_64
+- qemu/x86_64

library/python/3.12/README.md

@@ -0,0 +1,21 @@
+# Python 3.12
+
+This directory contains the definition for the `unikraft.org/python:3.12` image starting a simple HTTP server.
+
+To run this image, [install Unikraft's companion command-line toolchain `kraft`](https://unikraft.org/docs/cli) and then you can run:
+
+```console
+kraft run -p 8080:8080 unikraft.org/python:3.12
+```
+
+Query the server using:
+
+```console
+curl localhost:8080
+```
+
+You will get a `Hello, World!` message.
+
+## See also
+
+- [How to run unikernels locally in Unikraft's Documentation](https://unikraft.org/docs/cli/running).

library/python/3.12/server.py

@@ -0,0 +1,31 @@
+import argparse
+from http.server import HTTPServer, BaseHTTPRequestHandler
+
+class MyServer(BaseHTTPRequestHandler):
+  def do_GET(self):
+    self.send_response(200)
+    self.send_header("Content-type", "text/html")
+    self.end_headers()
+    self.wfile.write(bytes("Hello, World!\n", "utf-8"))
+
+def main(args):
+  server = HTTPServer((args.host, args.port), MyServer)
+
+  print("starting server at %s:%s" % (args.host, args.port))
+
+  try:
+    server.serve_forever()
+
+  except KeyboardInterrupt:
+    pass
+
+  print("server stopped")
+
+def parse_args():
+  parser = argparse.ArgumentParser()
+  parser.add_argument("--host", type=str, default="0.0.0.0")
+  parser.add_argument("--port", type=int, default=8080)
+  return parser.parse_args()
+
+if __name__ == "__main__":
+  main(parse_args())