WIP

.gitignore

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+*.qcow2
+.#*
+forgejo_runner
+*~

build-forgejorunner-template.sh

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+#!/bin/sh
+
+#
+# Build a Proxmox template VM from a qcow image based on the Github 
+# runner-images KVM image for ubuntu-24.04, with the forgejo-runner added.
+#
+
+set -e
+
+builder_host=forgejo-runner-builder
+builder_script=build-github-runner-kvm-ubuntu-latest-qcow.sh
+runner_image=github-runner-image-ubuntu-24.04.qcow2
+forgejo_runner_url=https://code.forgejo.org/forgejo/runner/releases/download/v3.5.0/forgejo-runner-3.5.0-linux-amd64
+vm_id=9042
+vm_name=template-forgejo-runner
+vm_bridge=vmbr4
+vm_storage="local-zfs"
+
+#ssh ${builder_host} sudo sh <${builder_script}
+#scp ${builder_host}:${runner_image} .
+
+#wget --output-document=forgejo_runner ${forgejo_runner_url} 
+
+virt-customize -a ${runner_image} \
+	--update \
+	--install qemu-guest-agent \
+	--run-command 'systemctl enable fstrim.timer' \
+	--edit '/etc/passwd:$_ = "" if /^forgejo:/' \
+	--edit '/etc/group:$_ = "" if /^forgejo:/' \
+	--run-command 'useradd --groups docker --create-home --shell /bin/bash --uid 2000 --user-group forgejo' \
+	--copy-in forgejo_runner:/usr/local/bin \
+	--run-command 'chown root:bin /usr/local/bin/forgejo_runner' \
+	--run-command 'chmod 0555 /usr/local/bin/forgejo_runner' \
+	--copy-in forgejo-runner.service:/etc/systemd/system \
+
+qm destroy ${vm_id} || true
+qm create ${vm_id} --name "${vm_name}" --memory 2048 --net0 virtio,bridge=${vm_bridge}
+
+qm importdisk ${vm_id} ${runner_image} ${vm_storage}
+
+qm set ${vm_id} --ide2 ${vm_storage}:cloudinit
+qm set ${vm_id} --boot c --bootdisk scsi0
+qm set ${vm_id} --machine q35
+qm set ${vm_id} --ostype l26
+qm set ${vm_id} --cpu cputype=host
+qm set ${vm_id} --cores 2
+qm set ${vm_id} --serial0 socket --vga serial0
+qm set ${vm_id} --agent 1,fstrim_cloned_disks=1
+qm set ${vm_id} --ciuser chaos
+qm set ${vm_id} --sshkeys ./authorized_keys
+qm set ${vm_id} --ipconfig0 ip=dhcp
+qm set ${vm_id} --tags ubuntu2404
+qm cloudinit update ${vm_id}
+qm template ${vm_id}
+echo "*** Done ***"

build-github-runner-kvm-ubuntu-latest-qcow.sh

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+#!/bin/sh
+
+#
+# Prepare a (Debian/Ubuntu) host to build a KVM qcow image from Githubs
+# runner-images repo patched for KVM. Run this as root.
+# Depending on the resources of your host and download speed, this will take
+# between 30 and 120 minutes.
+#
+
+HERE="$(pwd)"
+
+# install prerequiste pacakges
+apt install cloud-init git qemu-utils qemu-system-x86 tmux unzip
+
+# install packer, 1.9.5 is the latest release still under MPL
+if which packer >/dev/null; then
+	echo "Packer already installed"
+else
+	wget https://releases.hashicorp.com/packer/1.9.5/packer_1.9.5_linux_amd64.zip
+	unzip packer_1.9.5_linux_amd64.zip
+	cp packer /usr/local/bin
+	chmod +x /usr/local/bin/packer 
+	rm packer packer_*_linux_amd64.zip
+fi
+
+# clone repo
+git clone -b ubuntu24/20240714.1 https://github.com/fffonion/runner-images-kvm
+
+# run build
+cd runner-images-kvm/images/ubuntu/templates
+packer init ubuntu-24.04.pkr.hcl
+packer build ubuntu-24.04.pkr.hcl
+cd ${HERE}
+mv runner-images-kvm/images/ubuntu/templates/output-custom_image/ubuntu-24.04 github-runner-image-ubuntu-24.04.qcow
+rm -r runner-images-kvm

forgejo-runner.service

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+[Unit]
+Description=Forgejo Runner
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/forgejo-runner daemon
+Restart=on-failure
+User=forgejo-runner
+Group=forgejo-runner
+WorkingDirectory=/home/forgejo-runner
+
+[Install]