From 2204d7259b80260a986c5749890900203bd8e76b Mon Sep 17 00:00:00 2001
From: Jeff Lindsay <progrium@gmail.com>
Date: Tue, 3 Sep 2024 14:01:36 -0700
Subject: [PATCH] moving apptron vm definition here with gh actions builder

---
 .github/workflows/build-image.yml | 40 ++++++++++++++++++++++++++++
 .gitignore                        |  2 ++
 Makefile                          |  8 ++++++
 vm/Dockerfile                     | 44 +++++++++++++++++++++++++++++++
 vm/guest86.service                |  4 +++
 5 files changed, 98 insertions(+)
 create mode 100644 .github/workflows/build-image.yml
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 vm/Dockerfile
 create mode 100755 vm/guest86.service

diff --git a/.github/workflows/build-image.yml b/.github/workflows/build-image.yml
new file mode 100644
index 0000000..fb32a9d
--- /dev/null
+++ b/.github/workflows/build-image.yml
@@ -0,0 +1,40 @@
+name: Build Image
+
+on:
+  push:
+    branches: 
+      - main
+
+defaults:
+  run:
+    # GitHub Actions run without a TTY device. This is a workaround to get one,
+    # based on https://github.com/actions/runner/issues/241#issuecomment-2019042651
+    shell: 'script --return --quiet --log-out /dev/null --command "sh -e {0}"'
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    services:
+      docker:
+        image: docker:dind
+        options: --privileged --shm-size=2g
+        volumes:
+          - /var/run/docker.sock:/var/run/docker.sock:ro
+    container:
+      image: progrium/env86:latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Create image
+        run: |
+          make vm
+          tar -czf apptron-vm.tgz -C dist .
+
+      - uses: ncipollo/release-action@v1
+        with:
+          tag: "release"
+          allowUpdates: true
+          artifacts: "apptron-vm.tgz"
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0cc625f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/vm/image
+/dist
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7d53a42
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,8 @@
+.PHONY: vm
+
+vm: 
+	rm -rf ./vm/image
+	env86 create --with-guest --from-docker ./vm/Dockerfile ./vm/image
+	env86 boot --cold --ttyS0 --save --no-console --exit-on="localhost:~#" ./vm/image
+	rm -rf ./dist 
+	env86 prepare ./vm/image ./dist
\ No newline at end of file
diff --git a/vm/Dockerfile b/vm/Dockerfile
new file mode 100644
index 0000000..384f8a0
--- /dev/null
+++ b/vm/Dockerfile
@@ -0,0 +1,44 @@
+FROM i386/alpine:3.18.6
+
+ENV KERNEL=lts
+ENV HOSTNAME=localhost
+ENV PASSWORD='root'
+
+RUN apk add openrc \ 
+            alpine-base \
+            agetty \
+            alpine-conf
+
+# Install mkinitfs from edge (todo: remove this when 3.19+ has worked properly with 9pfs)
+RUN apk add mkinitfs --no-cache --allow-untrusted --repository https://dl-cdn.alpinelinux.org/alpine/edge/main/ 
+
+RUN if [ "$KERNEL" == "lts" ]; then \
+    apk add linux-lts \
+            linux-firmware-none \
+            linux-firmware-sb16; \
+else \
+    apk add linux-$KERNEL; \
+fi
+
+# Adding networking.sh script (works only on lts kernel yet)
+RUN if [ "$KERNEL" == "lts" ]; then \ 
+    echo -e "echo '127.0.0.1 localhost' >> /etc/hosts && rmmod ne2k-pci && modprobe ne2k-pci\nhwclock -s\nsetup-interfaces -a -r" > /root/networking.sh && \ 
+    chmod +x /root/networking.sh; \ 
+fi
+
+RUN sed -i 's/getty 38400 tty1/agetty --autologin root tty1 linux/' /etc/inittab
+RUN echo 'ttyS0::once:/sbin/agetty --autologin root -s ttyS0 115200 vt100' >> /etc/inittab 
+RUN echo "root:$PASSWORD" | chpasswd
+
+# assume env86 will add /bin/guest86
+COPY ./guest86.service /etc/init.d/guest86
+# there is a bug where it always crashes on first run
+RUN echo "rc-service guest86 start && rc-service guest86 stop && rc-service guest86 start" > /root/.profile
+
+# https://wiki.alpinelinux.org/wiki/Alpine_Linux_in_a_chroot#Preparing_init_services
+RUN for i in devfs dmesg mdev hwdrivers; do rc-update add $i sysinit; done
+RUN for i in hwclock modules sysctl hostname bootmisc; do rc-update add $i boot; done
+RUN rc-update add killprocs shutdown
+
+# Generate initramfs with 9p modules
+RUN mkinitfs -F "ata base ide scsi virtio ext4 9p" $(cat /usr/share/kernel/$KERNEL/kernel.release)
diff --git a/vm/guest86.service b/vm/guest86.service
new file mode 100755
index 0000000..664a1e7
--- /dev/null
+++ b/vm/guest86.service
@@ -0,0 +1,4 @@
+#!/sbin/openrc-run
+command="/bin/guest86"
+command_background="yes"
+pidfile="/var/run/guest86.pid"