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docker-gitea-act-runner
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Avoid using sudo if on happy path

This commit is contained in:
sebthom 2023-05-27 13:55:49 +02:00
parent 14e718454a
commit 19f8e34ad0
5 changed files with 74 additions and 29 deletions
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1
image/DinD.Dockerfile
View File

@ -83,6 +83,7 @@ RUN --mount=type=bind,source=.shared,target=/mnt/shared <<EOF
echo "#################################################"
addgroup --gid 1000 act
adduser --uid 1000 --ingroup act --home /data --shell /bin/bash --disabled-password --gecos "" act
adduser act users
adduser act sudo
echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers

1
image/Dockerfile
View File

@ -83,6 +83,7 @@ RUN --mount=type=bind,source=.shared,target=/mnt/shared <<EOF
echo "#################################################"
addgroup --gid 1000 act
adduser --uid 1000 --ingroup act --home /data --shell /bin/bash --disabled-password --gecos "" act
adduser act users
adduser act sudo
echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers

44
image/run.sh
View File

@ -7,9 +7,10 @@
#
source /opt/bash-init.sh
#################################################
#################################################################
# print header
#################################################
#################################################################
if [[ ${1:-} == "" ]]; then
cat <<'EOF'
_____ _ _ _ _____
/ ____(_) | /\ | | | __ \
@ -26,5 +27,44 @@ log INFO "Timezone is $(date +"%Z %z")"
log INFO "Hostname: $(hostname -f)"
log INFO "IP Addresses: "
awk '/32 host/ { if(uniq[ip]++ && ip != "127.0.0.1") print " - " ip } {ip=$2}' /proc/net/fib_trie
fi
#################################################################
# start docker deamon (if installed = DinD)
#################################################################
if [[ -f /usr/bin/dockerd ]]; then
[[ $EUID -eq 0 ]] || sudo -E bash ${BASH_SOURCE[0]}
log INFO "Starting docker engine..."
sudo service docker start
while [[ ! -e /var/run/docker.sock ]]; do sleep 2; done
fi
#################################################################
# check if act user UID/GID needs adjustment
#################################################################
fixids=false
if [ -n "${GITEA_RUNNER_UID:-}" ]; then
effective_uid=$(id -u act)
if [ "$GITEA_RUNNER_UID" != "$effective_uid" ]; then
fixids=true
fi
fi
if [ -n "${GITEA_RUNNER_GID:-}" ]; then
effective_gid=$(id -g act)
if [ "$GITEA_RUNNER_GID" != "$effective_gid" ]; then
fixids=true
fi
fi
#################################################################
# adjust act user UID/GID if required
#################################################################
if [[ $fixids == "true" ]]; then
exec sudo -E bash /opt/run_fixids.sh
else
bash /opt/run_runner.sh
fi

21
image/run_fixids.sh
View File

@ -13,6 +13,7 @@ source /opt/bash-init.sh
if [ -n "${GITEA_RUNNER_UID:-}" ]; then
effective_uid=$(id -u act)
if [ "$GITEA_RUNNER_UID" != "$effective_uid" ]; then
[[ $EUID -eq 0 ]] || sudo -E bash ${BASH_SOURCE[0]}
log INFO "Changing UID of user [act] from $effective_uid to $GITEA_RUNNER_UID..."
usermod -o -u "$GITEA_RUNNER_UID" act
fi
@ -21,31 +22,13 @@ fi
if [ -n "${GITEA_RUNNER_GID:-}" ]; then
effective_gid=$(id -g act)
if [ "$GITEA_RUNNER_GID" != "$effective_gid" ]; then
[[ $EUID -eq 0 ]] || sudo -E bash ${BASH_SOURCE[0]}
log INFO "Changing GID of user [act] from $effective_gid to $GITEA_RUNNER_GID..."
groupmod -o -g "$GITEA_RUNNER_GID" act
fi
fi
chown -R act:act /data
if [[ -f /usr/bin/dockerd ]]; then
log INFO "Starting docker engine..."
service docker start
while [[ ! -e /var/run/docker.sock ]]; do sleep 2; done
fi
docker_group=$(stat -c '%G' /var/run/docker.sock)
if [[ $docker_group == "UNKNOWN" ]]; then
docker_gid=$(stat -c '%g' /var/run/docker.sock)
docker_group="docker$docker_gid"
log INFO "Creating group [$docker_group]..."
addgroup --gid $docker_gid $docker_group
fi
if ! id -nG act | grep -qw "$docker_group"; then
log INFO "Adding user [act] to group [$docker_group]..."
usermod -aG $docker_group act
fi
#################################################################
# Launch the runner with adjusted UID/GID

20
image/run_runner.sh
View File

@ -11,6 +11,26 @@ log INFO "Effective user: $(id)"
cd /data
#################################################################
# ensure act user has read/write access to /var/run/docker.sock
#################################################################
if [[ ! -w /var/run/docker.sock || ! -r /var/run/docker.sock ]]; then
docker_group=$(stat -c '%G' /var/run/docker.sock)
if [[ $docker_group == "UNKNOWN" ]]; then
docker_gid=$(stat -c '%g' /var/run/docker.sock)
docker_group="docker$docker_gid"
log INFO "Creating group [$docker_group]..."
sudo addgroup --gid $docker_gid $docker_group
fi
if ! id -nG act | grep -qw "$docker_group"; then
log INFO "Adding user [act] to docker group [$(getent group $docker_group)]..."
sudo usermod -aG $docker_group act
fi
fi
#################################################
# load custom init script if specified
#################################################