Add proxmox-docker-import.sh

proxmox-docker-import.sh

@@ -0,0 +1,110 @@
+#!/bin/bash
+
+# Exit on any error
+set -e
+
+# Check if running as root
+if [ "$EUID" -ne 0 ]; then
+    echo "Please run as root"
+    exit 1
+fi
+
+# Default values
+DOCKER_IMAGE="alpine:3.16.0"
+CONTAINER_NAME="dockerimage"
+TEMPLATE_NAME="alpine-3.16-docker_$(date +%Y%m%d)_amd64.tar.xz"
+
+# Parse command line arguments
+while getopts "i:n:t:" opt; do
+    case $opt in
+        i) DOCKER_IMAGE="$OPTARG" ;;
+        n) CONTAINER_NAME="$OPTARG" ;;
+        t) TEMPLATE_NAME="$OPTARG" ;;
+        ?) echo "Usage: $0 [-i docker_image] [-n container_name] [-t template_name]" >&2; exit 1 ;;
+    esac
+done
+
+echo "Installing required packages..."
+apt update && apt -y install skopeo umoci jq
+
+echo "Creating LXC container from Docker image..."
+lxc-create "$CONTAINER_NAME" -t oci -- --url "docker://${DOCKER_IMAGE}"
+
+echo "Updating network configuration..."
+sed -i "s/lxcbr0/vmbr0/" "/var/lib/lxc/${CONTAINER_NAME}/config"
+
+echo "Removing extra TTYs..."
+sed -i '/.*tty[56]$/d' "/var/lib/lxc/${CONTAINER_NAME}/rootfs/etc/inittab"
+
+echo "Configuring network interfaces..."
+cat << EOF > "/var/lib/lxc/${CONTAINER_NAME}/rootfs/etc/network/interfaces"
+auto eth0
+iface eth0 inet dhcp
+hostname \$(hostname)
+EOF
+
+echo "Adding required packages..."
+WORLD="/var/lib/lxc/${CONTAINER_NAME}/rootfs/etc/apk/world"
+for pkg in alpine-base alpine-baselayout alpine-keys apk-tools busybox doas libc-utils logrotate; do
+    grep -q "^${pkg}$" "$WORLD" || echo "$pkg" >> "$WORLD"
+done
+LC_ALL=C sort "$WORLD" -o "$WORLD"
+
+echo "Starting container and configuring services..."
+lxc-start -f "/var/lib/lxc/${CONTAINER_NAME}/config" --name="$CONTAINER_NAME" --logfile ~/lxc.log --logpriority DEBUG
+
+# Wait for container to start
+sleep 5
+
+# Configure networking and install packages
+cat << 'EOF' | lxc-attach --name="$CONTAINER_NAME"
+ifdown -a
+ifup -a && apk add --root=/ --initdb $(cat /etc/apk/world)
+
+rc-update --quiet add bootmisc boot
+rc-update --quiet add hostname boot
+rc-update --quiet add savecache shutdown
+rc-update --quiet add killprocs shutdown
+rc-update --quiet add syslog boot
+rc-update --quiet add networking boot default
+rc-update --quiet add crond default
+
+reboot
+EOF
+
+# Wait for container to reboot
+sleep 10
+
+echo "Preparing template files..."
+ROOTFS="/var/lib/lxc/${CONTAINER_NAME}/rootfs"
+
+# Stop container
+lxc-stop --name="$CONTAINER_NAME"
+
+# Update template files
+cat << EOF > "${ROOTFS}/etc/hosts"
+127.0.1.1   LXC_NAME
+127.0.0.1   localhost localhost.localdomain
+::1         localhost localhost.localdomain
+EOF
+
+echo "LXC_NAME" > "${ROOTFS}/etc/hostname"
+
+# Clean up files
+echo -n > "${ROOTFS}/root/.ash_history"
+rm -f "${ROOTFS}/var/log/messages"*
+echo -n > "${ROOTFS}/var/log/messages"
+
+# Clean /run directory
+cd "${ROOTFS}/run/"
+rm -rf ./*
+
+echo "Creating template..."
+TEMPLATEDIR="/var/lib/vz/template/cache"
+tar -cJf "${TEMPLATEDIR}/${TEMPLATE_NAME}" -p --sparse -C "$ROOTFS" $(ls -A "$ROOTFS")
+
+echo "Cleaning up..."
+lxc-destroy "$CONTAINER_NAME"
+
+echo "Template creation complete: ${TEMPLATE_NAME}"
+echo "You can now create containers from this template using the Proxmox GUI or pct create command"