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Code Issues Releases Wiki Activity

Generate persistent (and unique) SSH host keys

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This commit is contained in:
Knut Ahlers 2016-03-25 17:35:38 +01:00
parent f5142c82d6
commit 48c3d670aa
2 changed files with 22 additions and 5 deletions
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18
Dockerfile
View file

@ -5,14 +5,22 @@ ENV USER share
ENV PASS changeme ENV PASS changeme
ENV USER_UID 1000 ENV USER_UID 1000
RUN apt-get update && \ ENV DI_VERSION 1.0.1
apt-get install -y openssh-server mcrypt && \ ENV DI_HASH 91b9970e6a0d23d7aedf3321fb1d161937e7f5e6ff38c51a8a997278cc00fb0a
mkdir /var/run/sshd && chmod 0755 /var/run/sshd
ADD https://github.com/Yelp/dumb-init/releases/download/v1.0.1/dumb-init_${DI_VERSION}_amd64 /usr/local/bin/dumb-init
RUN apt-get update \
&& apt-get install -y openssh-server mcrypt \
&& mkdir /var/run/sshd && chmod 0755 /var/run/sshd \
&& echo "${DI_HASH} /usr/local/bin/dumb-init" | sha256sum -c \
&& chmod +x /usr/local/bin/dumb-init
ADD start.sh /usr/local/bin/start.sh ADD start.sh /usr/local/bin/start.sh
ADD sshd_config /etc/ssh/sshd_config ADD sshd_config /etc/ssh/sshd_config
VOLUME ["/data"] VOLUME ["/data", "/ssh"]
EXPOSE 22 EXPOSE 22
ENTRYPOINT ["/bin/bash", "/usr/local/bin/start.sh"] ENTRYPOINT ["/usr/local/bin/dumb-init"]
CMD ["/usr/local/bin/start.sh"]

9
start.sh Normal file → Executable file
View file

@ -1,5 +1,14 @@
#!/bin/bash #!/bin/bash
for type in rsa dsa ecdsa ed25519; do
if ! [ -e "/ssh/ssh_host_${type}_key" ]; then
echo "/ssh/ssh_host_${type}_key not found, generating..."
ssh-keygen -f "/ssh/ssh_host_${type}_key" -N '' -t ${type}
fi
ln -sf "/ssh/ssh_host_${type}_key" "/etc/ssh/ssh_host_${type}_key"
done
if ( id ${USER} ); then if ( id ${USER} ); then
echo "INFO: User ${USER} already exists" echo "INFO: User ${USER} already exists"
else else