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|
bootstrap: library
from: alpine:3.15
%post
apk update
apk add sshfs dropbear openssh-sftp-server
loader=`strings /bin/sh | head -n1`
mkdir /etc/dropbear
ssh-keygen -f /etc/ssh/ssh_host_rsa_key -N '' -t rsa-sha2-512
mkdir /root/.ssh
chmod 0600 /root/.ssh
cp /etc/ssh/ssh_host_rsa_key.pub /root/.ssh/authorized_keys
mkdir /wrapped
cat > /sshfs-wrapper <<EOF
#!/bin/sh
# get mount point directory
dir="\${0%/*}"
# export it for other command wrapper
export ROOTDIR_WRAPPER="\$dir"
export LD_LIBRARY_PATH="\$dir/usr/lib:\$dir/lib"
export PATH="\$ROOTDIR_WRAPPER/wrapped:\$PATH"
exec \$dir$loader \$dir/usr/bin/sshfs "\$@"
EOF
# all commands required by FUSE server must be wrapped
# to start them with the loader of this image
cat > /wrapped/ssh <<EOF
#!/bin/sh
exec \$ROOTDIR_WRAPPER$loader \$ROOTDIR_WRAPPER/usr/bin/ssh "\$@"
EOF
chmod +x /sshfs-wrapper /wrapped/*
%runscript
dropbear -R -E -s -p 127.0.0.1:2022
# wait until we receive something on stdin
cat > /dev/null
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