act_runner/scripts/run.sh
m90 10dc6fb60d Allow reading registration token from file (#350)
When deploying the runner in a Docker Swarm setup, it can be useful to
read the potentially sensitive token from a secret instead of having to
pass it from an environment variable.

Co-authored-by: Frederik Ring <frederik.ring@gmail.com>
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/350
Reviewed-by: Jason Song <i@wolfogre.com>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: m90 <m90@noreply.gitea.com>
Co-committed-by: m90 <m90@noreply.gitea.com>
2023-09-04 04:12:07 +00:00

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#!/usr/bin/env bash
if [[ ! -d /data ]]; then
mkdir -p /data
fi
cd /data
CONFIG_ARG=""
if [[ ! -z "${CONFIG_FILE}" ]]; then
CONFIG_ARG="--config ${CONFIG_FILE}"
fi
EXTRA_ARGS=""
if [[ ! -z "${GITEA_RUNNER_LABELS}" ]]; then
EXTRA_ARGS="${EXTRA_ARGS} --labels ${GITEA_RUNNER_LABELS}"
fi
# In case no token is set, it's possible to read the token from a file, i.e. a Docker Secret
if [[ -z "${GITEA_RUNNER_REGISTRATION_TOKEN}" ]] && [[ -f "${GITEA_RUNNER_REGISTRATION_TOKEN_FILE}" ]]; then
GITEA_RUNNER_REGISTRATION_TOKEN=$(cat "${GITEA_RUNNER_REGISTRATION_TOKEN_FILE}")
fi
# Use the same ENV variable names as https://github.com/vegardit/docker-gitea-act-runner
if [[ ! -s .runner ]]; then
try=$((try + 1))
success=0
# The point of this loop is to make it simple, when running both act_runner and gitea in docker,
# for the act_runner to wait a moment for gitea to become available before erroring out. Within
# the context of a single docker-compose, something similar could be done via healthchecks, but
# this is more flexible.
while [[ $success -eq 0 ]] && [[ $try -lt ${GITEA_MAX_REG_ATTEMPTS:-10} ]]; do
act_runner register \
--instance "${GITEA_INSTANCE_URL}" \
--token "${GITEA_RUNNER_REGISTRATION_TOKEN}" \
--name "${GITEA_RUNNER_NAME:-`hostname`}" \
${CONFIG_ARG} ${EXTRA_ARGS} --no-interactive 2>&1 | tee /tmp/reg.log
cat /tmp/reg.log | grep 'Runner registered successfully' > /dev/null
if [[ $? -eq 0 ]]; then
echo "SUCCESS"
success=1
else
echo "Waiting to retry ..."
sleep 5
fi
done
fi
# Prevent reading the token from the act_runner process
unset GITEA_RUNNER_REGISTRATION_TOKEN
unset GITEA_RUNNER_REGISTRATION_TOKEN_FILE
act_runner daemon ${CONFIG_ARG}