New approach to Gogs Docker Container
- VOLUME for ‘/data’ - Usage of S6 as PID 1 Process - Usage of ‘socat’ so linked container (like databases) are binded to localhost - OpenSSH, Socat Link and Gogs are supervised using S6 - Size of container reduced to ~75Mo
This commit is contained in:
Jean-Philippe Roemer
parent
e0a099ec11
commit
e63e0b3105
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@ -1,7 +1,7 @@
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.git/*
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conf/*
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packager/*
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scripts/*
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.git
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conf
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packager
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scripts
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*.yml
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*.md
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.bra.toml
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63
Dockerfile
63
Dockerfile
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@ -1,54 +1,31 @@
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FROM google/debian:wheezy
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MAINTAINER u@gogs.io
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FROM alpine:3.2
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MAINTAINER roemer.jp@gmail.com
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RUN echo "deb http://ftp.debian.org/debian/ wheezy-backports main" >> /etc/apt/sources.list && \
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apt-get update -qqy && \
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apt-get install --no-install-recommends -qqy \
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curl build-essential ca-certificates git \
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openssh-server libpam-dev && \
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apt-get autoclean && \
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apt-get autoremove && \
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rm -rf /var/lib/apt/lists/*
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# Install system utils & Gogs runtime dependencies
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ADD https://github.com/tianon/gosu/releases/download/1.5/gosu-amd64 /usr/sbin/gosu
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RUN echo "@edge http://dl-4.alpinelinux.org/alpine/edge/main" | tee -a /etc/apk/repositories \
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&& echo "@community http://dl-4.alpinelinux.org/alpine/edge/community" | tee -a /etc/apk/repositories \
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&& apk -U --no-progress upgrade \
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&& apk -U --no-progress add ca-certificates git linux-pam s6@edge curl openssh socat \
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&& chmod +x /usr/sbin/gosu
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ENV GOROOT /goroot
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ENV GOPATH /gopath
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ENV PATH $PATH:$GOROOT/bin:$GOPATH/bin
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# Configure SSH
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COPY docker/sshd_config /etc/ssh/sshd_config
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COPY . /gopath/src/github.com/gogits/gogs/
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WORKDIR /gopath/src/github.com/gogits/gogs/
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# Build binary and clean up useless files
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RUN mkdir /goroot && \
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curl https://storage.googleapis.com/golang/go1.5.linux-amd64.tar.gz | tar xzf - -C /goroot --strip-components=1 && \
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go get -v -tags "sqlite redis memcache cert pam" && \
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go build -tags "sqlite redis memcache cert pam" && \
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mkdir /app/ && \
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mv /gopath/src/github.com/gogits/gogs/ /app/gogs/ && \
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rm -r $GOROOT $GOPATH
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# Configure Go and build Gogs
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ENV GOPATH /tmp/go
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ENV PATH $PATH:$GOPATH/bin
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COPY . /app/gogs/
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WORKDIR /app/gogs/
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RUN ./docker/build.sh
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RUN useradd --shell /bin/bash --system --comment gogits git
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# SSH login fix, otherwise user is kicked off after login
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RUN mkdir /var/run/sshd && \
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sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd && \
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sed 's@UsePrivilegeSeparation yes@UsePrivilegeSeparation no@' -i /etc/ssh/sshd_config && \
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echo "export VISIBLE=now" >> /etc/profile && \
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echo "PermitUserEnvironment yes" >> /etc/ssh/sshd_config
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# Setup server keys on startup
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RUN sed 's@^HostKey@\#HostKey@' -i /etc/ssh/sshd_config && \
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echo "HostKey /data/ssh/ssh_host_key" >> /etc/ssh/sshd_config && \
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echo "HostKey /data/ssh/ssh_host_rsa_key" >> /etc/ssh/sshd_config && \
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echo "HostKey /data/ssh/ssh_host_dsa_key" >> /etc/ssh/sshd_config && \
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echo "HostKey /data/ssh/ssh_host_ecdsa_key" >> /etc/ssh/sshd_config && \
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echo "HostKey /data/ssh/ssh_host_ed25519_key" >> /etc/ssh/sshd_config
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# Prepare data
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ENV GOGS_CUSTOM /data/gogs
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# Create git user for Gogs
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RUN adduser -D -g 'Gogs Git User' git -h /data/git/ -s /bin/sh && passwd -u git
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RUN echo "export GOGS_CUSTOM=/data/gogs" >> /etc/profile
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VOLUME ["/data"]
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EXPOSE 22 3000
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ENTRYPOINT []
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CMD ["./docker/start.sh"]
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17
docker/build.sh
Executable file
17
docker/build.sh
Executable file
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@ -0,0 +1,17 @@
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#!/bin/sh
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# Install build deps
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apk -U --no-progress add linux-pam-dev go@community gcc musl-dev
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# Init go environment to build Gogs
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mkdir -p ${GOPATH}/src/github.com/gogits/
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ln -s /app/gogs/ ${GOPATH}/src/github.com/gogits/gogs
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cd ${GOPATH}/src/github.com/gogits/gogs
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go get -v -tags "sqlite redis memcache cert pam"
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go build -tags "sqlite redis memcache cert pam"
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# Cleanup GOPATH
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rm -r $GOPATH
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# Remove build deps
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apk --no-progress del linux-pam-dev go gcc musl-dev
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2
docker/s6/.s6-svscan/finish
Executable file
2
docker/s6/.s6-svscan/finish
Executable file
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@ -0,0 +1,2 @@
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#!/bin/sh
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exec /bin/true
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28
docker/s6/gogs/run
Executable file
28
docker/s6/gogs/run
Executable file
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@ -0,0 +1,28 @@
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#!/bin/sh
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USER=git
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USERNAME=$USER
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if ! test -d /data/gogs; then
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mkdir -p /data/gogs/data /data/gogs/conf /data/gogs/log /data/git
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fi
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if ! test -d ~git/.ssh; then
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mkdir ~git/.ssh
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chmod 700 ~git/.ssh
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fi
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if ! test -f ~git/.ssh/environment; then
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echo "GOGS_CUSTOM=/data/gogs" > ~git/.ssh/environment
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chown git:git ~git/.ssh/environment
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chown 600 ~git/.ssh/environment
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fi
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ln -sf /data/gogs/log /app/gogs/log
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ln -sf /data/gogs/data /app/gogs/data
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ln -sf /data/gogs/conf /app/gogs/conf
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chown -R git:git /data /app/gogs ~git/
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export USER
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export USERNAME
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exec gosu $USER /app/gogs/gogs web
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15
docker/s6/openssh/run
Executable file
15
docker/s6/openssh/run
Executable file
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@ -0,0 +1,15 @@
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#!/bin/sh
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if ! test -d /data/ssh
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then
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mkdir -p /data/ssh
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ssh-keygen -q -f /data/ssh/ssh_host_key -N '' -t rsa1
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ssh-keygen -q -f /data/ssh/ssh_host_rsa_key -N '' -t rsa
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ssh-keygen -q -f /data/ssh/ssh_host_dsa_key -N '' -t dsa
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ssh-keygen -q -f /data/ssh/ssh_host_ecdsa_key -N '' -t ecdsa
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ssh-keygen -q -f /data/ssh/ssh_host_ed25519_key -N '' -t ed25519
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chown -R root:root /data/ssh/*
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chmod 600 /data/ssh/*
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fi
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exec gosu root /usr/sbin/sshd -D -f /etc/ssh/sshd_config
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17
docker/sshd_config
Normal file
17
docker/sshd_config
Normal file
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Port 22
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AddressFamily any
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ListenAddress 0.0.0.0
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ListenAddress ::
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Protocol 2
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LogLevel INFO
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HostKey /data/ssh/ssh_host_key
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HostKey /data/ssh/ssh_host_rsa_key
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HostKey /data/ssh/ssh_host_dsa_key
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HostKey /data/ssh/ssh_host_ecdsa_key
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HostKey /data/ssh/ssh_host_ed25519_key
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PermitRootLogin no
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AuthorizedKeysFile .ssh/authorized_keys
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PasswordAuthentication no
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UsePrivilegeSeparation no
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PermitUserEnvironment yes
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AllowUsers git
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@ -1,43 +1,12 @@
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#!/bin/bash -
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#
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#!/bin/sh
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if ! test -d /data/gogs
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then
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mkdir -p /var/run/sshd
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mkdir -p /data/gogs/data /data/gogs/conf /data/gogs/log /data/git
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fi
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# Bind linked docker container to localhost socket using socat
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env | sed -En 's|(.*)_PORT_([0-9]*)_TCP=tcp://(.*):(.*)|\1_\2 socat -ls TCP4-LISTEN:\2,fork,reuseaddr TCP4:\3:\4|p' | \
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while read NAME CMD; do
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mkdir -p /app/gogs/docker/s6/$NAME
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echo -e "#!/bin/sh\nexec $CMD" > /app/gogs/docker/s6/$NAME/run
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chmod +x /app/gogs/docker/s6/$NAME/run
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done
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if ! test -d /data/ssh
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then
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mkdir /data/ssh
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ssh-keygen -q -f /data/ssh/ssh_host_key -N '' -t rsa1
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ssh-keygen -q -f /data/ssh/ssh_host_rsa_key -N '' -t rsa
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ssh-keygen -q -f /data/ssh/ssh_host_dsa_key -N '' -t dsa
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ssh-keygen -q -f /data/ssh/ssh_host_ecdsa_key -N '' -t ecdsa
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ssh-keygen -q -f /data/ssh/ssh_host_ed25519_key -N '' -t ed25519
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chown -R root:root /data/ssh/*
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chmod 600 /data/ssh/*
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fi
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service ssh start
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ln -sf /data/gogs/log ./log
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ln -sf /data/gogs/data ./data
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ln -sf /data/git /home/git
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if ! test -d ~git/.ssh
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then
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mkdir ~git/.ssh
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chmod 700 ~git/.ssh
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fi
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if ! test -f ~git/.ssh/environment
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then
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echo "GOGS_CUSTOM=/data/gogs" > ~git/.ssh/environment
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chown git:git ~git/.ssh/environment
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chown 600 ~git/.ssh/environment
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fi
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chown -R git:git /data .
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exec su git -c "./gogs web"
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# Exec S6 as process manager for gogs and dropbear ssh
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exec /usr/bin/s6-svscan /app/gogs/docker/s6/
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