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- FROM i386/alpine:3.18.6
- ENV KERNEL=lts
- ENV HOSTNAME=localhost
- ENV ROOT_PASSWORD='root'
- ENV ADDPKGS=''
- RUN apk add openrc \
- alpine-base \
- agetty \
- alpine-conf \
- $ADDPKGS
- # Install mkinitfs from edge (todo: remove this when 3.19+ has worked properly with 9pfs)
- RUN apk add mkinitfs --no-cache --allow-untrusted --repository https://dl-cdn.alpinelinux.org/alpine/edge/main/
- RUN if [ "$KERNEL" == "lts" ]; then \
- apk add linux-lts \
- linux-firmware-none \
- linux-firmware-sb16; \
- else \
- apk add linux-$KERNEL; \
- fi
- RUN sed -i 's/getty 38400 tty1/agetty --autologin root tty1 linux/' /etc/inittab && \
- echo "root:$ROOT_PASSWORD" | chpasswd
- RUN setup-hostname $HOSTNAME
- # Adding networking.sh script (works only on lts kernel yet)
- RUN if [ "$KERNEL" == "lts" ]; then \
- echo -e "rmmod ne2k-pci && modprobe ne2k-pci\nhwclock -s\nsetup-interfaces -a -r" > /root/networking.sh && \
- chmod +x /root/networking.sh; \
- fi
- # 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 syslog 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)
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