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Dockerfile
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Dockerfile
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FROM alpine:3.7
LABEL maintainer="Oscar Andrés Díaz <[email protected]>"
RUN apk --update add --no-cache openssh bash \
&& sed -i s/#PermitRootLogin.*/PermitRootLogin\ yes/ /etc/ssh/sshd_config \
&& echo "root:root" | chpasswd \
&& rm -rf /var/cache/apk/* \
&& sed -ie 's/#Port 22/Port 22/g' /etc/ssh/sshd_config \
&& sed -ri 's/#HostKey \/etc\/ssh\/ssh_host_key/HostKey \/etc\/ssh\/ssh_host_key/g' /etc/ssh/sshd_config \
&& sed -ir 's/#HostKey \/etc\/ssh\/ssh_host_rsa_key/HostKey \/etc\/ssh\/ssh_host_rsa_key/g' /etc/ssh/sshd_config \
&& sed -ir 's/#HostKey \/etc\/ssh\/ssh_host_dsa_key/HostKey \/etc\/ssh\/ssh_host_dsa_key/g' /etc/ssh/sshd_config \
&& sed -ir 's/#HostKey \/etc\/ssh\/ssh_host_ecdsa_key/HostKey \/etc\/ssh\/ssh_host_ecdsa_key/g' /etc/ssh/sshd_config \
&& sed -ir 's/#HostKey \/etc\/ssh\/ssh_host_ed25519_key/HostKey \/etc\/ssh\/ssh_host_ed25519_key/g' /etc/ssh/sshd_config \
&& /usr/bin/ssh-keygen -A \
&& ssh-keygen -t rsa -b 4096 -f /etc/ssh/ssh_host_key
EXPOSE 22
CMD ["/usr/sbin/sshd","-D"]