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release-image: Remap UID within the image before handling $DOCKER_USER #2223

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Merged
nhooyr merged 1 commit into from
Oct 23, 2020
Merged

release-image: Remap UID within the image before handling $DOCKER_USER #2223

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9 changes: 6 additions & 3 deletions ci/release-image/entrypoint.sh
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Original file line number Diff line number Diff line change
@@ -1,7 +1,11 @@
#!/bin/sh
set -eu

if [ "${DOCKER_USER-}" ] && [ "$DOCKER_USER" != "$USER" ]; then
# We do this first to ensure sudo works below when renaming the user.
# Otherwise the current container UID may not exist in the passwd database.
eval "$(fixuid -q)"

if [ "${DOCKER_USER-}" ]; then
echo "$DOCKER_USER ALL=(ALL) NOPASSWD:ALL" | sudo tee -a /etc/sudoers.d/nopasswd > /dev/null
# Unfortunately we cannot change $HOME as we cannot move any bind mounts
# nor can we bind mount $HOME into a new home as that requires a privileged container.
Expand All @@ -11,7 +15,6 @@ if [ "${DOCKER_USER-}" ] && [ "$DOCKER_USER" != "$USER" ]; then
USER="$DOCKER_USER"

sudo sed -i "/coder/d" /etc/sudoers.d/nopasswd
sudo sed -i "s/coder/$DOCKER_USER/g" /etc/fixuid/config.yml
fi

dumb-init fixuid -q /usr/bin/code-server "$@"
dumb-init /usr/bin/code-server "$@"