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Docker: create UNIX group on demand

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This commit is contained in:
Christian Poessinger 2019-01-11 09:15:33 +01:00
parent 4004496e89
commit 4c42851c53
2 changed files with 8 additions and 3 deletions
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2
docker/Dockerfile
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@ -158,7 +158,7 @@ RUN export LATEST="$(curl -s https://checkpoint-api.hashicorp.com/v1/check/packe
# Allow password-less 'sudo' for all users in group 'sudo' # Allow password-less 'sudo' for all users in group 'sudo'
RUN sed "s/^%sudo.*/%sudo\tALL=(ALL) NOPASSWD:ALL/g" -i /etc/sudoers && \ RUN sed "s/^%sudo.*/%sudo\tALL=(ALL) NOPASSWD:ALL/g" -i /etc/sudoers && \
chmod a+s /usr/sbin/useradd /usr/sbin/gosu /usr/sbin/usermod chmod a+s /usr/sbin/useradd /usr/sbin/groupadd /usr/sbin/gosu /usr/sbin/usermod
COPY entrypoint.sh /usr/local/bin/entrypoint.sh COPY entrypoint.sh /usr/local/bin/entrypoint.sh
ENTRYPOINT ["/usr/local/bin/entrypoint.sh"] ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]

9
docker/entrypoint.sh
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@ -18,8 +18,13 @@ fi
# Notify user about selected UID/GID # Notify user about selected UID/GID
echo "Current UID/GID: $NEW_UID/$NEW_GID" echo "Current UID/GID: $NEW_UID/$NEW_GID"
useradd --shell /bin/bash -u $NEW_UID -g $NEW_GID -o -m $USER_NAME # Create UNIX group on the fly if it does not exist
usermod -aG sudo $USER_NAME if ! grep -q $NEW_GID /etc/group; then
groupadd --gid $NEW_GID $USER_NAME
fi
useradd --shell /bin/bash --uid $NEW_UID --gid $NEW_GID --non-unique --create-home $USER_NAME
usermod --append --groups sudo $USER_NAME
sudo chown $NEW_UID:$NEW_GID /home/$USER_NAME sudo chown $NEW_UID:$NEW_GID /home/$USER_NAME
export HOME=/home/$USER_NAME export HOME=/home/$USER_NAME