95 lines
3.2 KiB
Bash
Executable File
95 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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################################################################################
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# INIT
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################################################################################
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mkdir -p /root/.ssh
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> /root/.ssh/authorized_keys
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chmod go-rwx /root/.ssh/authorized_keys
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sed -i "s/.*PasswordAuthentication .*/PasswordAuthentication no/g" /etc/ssh/sshd_config
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sed -i 's/root:!/root:*/' /etc/shadow
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if [ "$RSYNC_UID" != "" ] && [ "$RSYNC_GID" != "" ]; then
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# UID and GID provided, create user
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echo "UID and GID provided: $RSYNC_UID and $RSYNC_GID. Creating the user"
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echo "rsyncuser:x:$RSYNC_UID:$RSYNC_GID::/home/rsyncuser:/bin/sh" >> /etc/passwd
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echo "users:x:$RSYNC_GID:rsyncuser" >> /etc/group
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RSYNC_USER=rsyncuser
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else
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# UID and GID not provided
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echo "UID and GID are NOT provided. Proceeding as the root user."
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RSYNC_USER=root
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fi
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# Provide SSH_AUTH_KEY_* via environment variable
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for item in `env`; do
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case "$item" in
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SSH_AUTH_KEY*)
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ENVVAR=`echo $item | cut -d \= -f 1`
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printenv $ENVVAR >> /root/.ssh/authorized_keys
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;;
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esac
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done
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# Provide CRON_TASK_* via environment variable
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> /etc/crontabs/root
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for item in `env`; do
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case "$item" in
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CRON_TASK*)
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ENVVAR=`echo $item | cut -d \= -f 1`
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printenv $ENVVAR >> /etc/crontabs/root
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echo "root" > /etc/crontabs/cron.update
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;;
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esac
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done
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# Generate host SSH keys
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if [ ! -e /etc/ssh/ssh_host_rsa_key.pub ]; then
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ssh-keygen -A
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fi
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# Generate root SSH key
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if [ ! -e /root/.ssh/id_rsa.pub ]; then
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ssh-keygen -q -N "" -f /root/.ssh/id_rsa
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fi
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################################################################################
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# START as SERVER
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################################################################################
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if [ "$1" == "server" ]; then
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AUTH=`cat /root/.ssh/authorized_keys`
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if [ -z "$AUTH" ]; then
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echo "=================================================================================="
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echo "ERROR: No SSH_AUTH_KEY provided, you'll not be able to connect to this container. "
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echo "=================================================================================="
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exit 1
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fi
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SSH_PARAMS="-D -e -p ${SSH_PORT:-22} $SSH_PARAMS"
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echo "================================================================================"
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echo "Running: /usr/sbin/sshd $SSH_PARAMS "
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echo "================================================================================"
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exec /usr/sbin/sshd -D $SSH_PARAMS
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fi
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echo "Please add this ssh key to your server /home/user/.ssh/authorized_keys "
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echo "================================================================================"
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echo "`cat /root/.ssh/id_rsa.pub`"
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echo "================================================================================"
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################################################################################
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# START as CLIENT via crontab
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################################################################################
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if [ "$1" == "client" ]; then
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exec /usr/sbin/crond -f
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fi
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################################################################################
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# Anything else
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################################################################################
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exec "$@"
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