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step-ca/docker/entrypoint.sh
Carl Tashian 3c1e713aad Skip in-container pcscd when host socket is mounted
If /var/run/pcscd/pcscd.comm exists (from a host bind-mount),
the entrypoint now skips starting pcscd inside the container,
supporting the recommended pattern of running pcscd on the host.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 13:48:25 -07:00

112 lines
4.3 KiB
Bash

#!/bin/bash
set -eo pipefail
# Paraphrased from:
# https://github.com/influxdata/influxdata-docker/blob/0d341f18067c4652dfa8df7dcb24d69bf707363d/influxdb/2.0/entrypoint.sh
# (a repo with no LICENSE.md)
export STEPPATH=$(step path)
# List of env vars required for step ca init
declare -ra REQUIRED_INIT_VARS=(DOCKER_STEPCA_INIT_NAME DOCKER_STEPCA_INIT_DNS_NAMES)
# Ensure all env vars required to run step ca init are set.
function init_if_possible () {
local missing_vars=0
for var in "${REQUIRED_INIT_VARS[@]}"; do
if [ -z "${!var}" ]; then
missing_vars=1
fi
done
if [ ${missing_vars} = 1 ]; then
>&2 echo "there is no ca.json config file; please run step ca init, or provide config parameters via DOCKER_STEPCA_INIT_ vars"
else
step_ca_init "${@}"
fi
}
function generate_password () {
set +o pipefail
< /dev/urandom tr -dc A-Za-z0-9 | head -c40
echo
set -o pipefail
}
# Initialize a CA if not already initialized
function step_ca_init () {
DOCKER_STEPCA_INIT_PROVISIONER_NAME="${DOCKER_STEPCA_INIT_PROVISIONER_NAME:-admin}"
DOCKER_STEPCA_INIT_ADMIN_SUBJECT="${DOCKER_STEPCA_INIT_ADMIN_SUBJECT:-step}"
DOCKER_STEPCA_INIT_ADDRESS="${DOCKER_STEPCA_INIT_ADDRESS:-:9000}"
DOCKER_STEPCA_INIT_ROOT_FILE="${DOCKER_STEPCA_INIT_ROOT_FILE:-"/run/secrets/root_ca.crt"}"
DOCKER_STEPCA_INIT_KEY_FILE="${DOCKER_STEPCA_INIT_KEY_FILE:-"/run/secrets/root_ca_key"}"
DOCKER_STEPCA_INIT_KEY_PASSWORD_FILE="${DOCKER_STEPCA_INIT_KEY_PASSWORD_FILE:-"/run/secrets/root_ca_key_password"}"
local -a setup_args=(
--name "${DOCKER_STEPCA_INIT_NAME}"
--dns "${DOCKER_STEPCA_INIT_DNS_NAMES}"
--provisioner "${DOCKER_STEPCA_INIT_PROVISIONER_NAME}"
--password-file "${STEPPATH}/password"
--provisioner-password-file "${STEPPATH}/provisioner_password"
--address "${DOCKER_STEPCA_INIT_ADDRESS}"
)
if [ -n "${DOCKER_STEPCA_INIT_PASSWORD_FILE}" ]; then
cat < "${DOCKER_STEPCA_INIT_PASSWORD_FILE}" > "${STEPPATH}/password"
cat < "${DOCKER_STEPCA_INIT_PASSWORD_FILE}" > "${STEPPATH}/provisioner_password"
elif [ -n "${DOCKER_STEPCA_INIT_PASSWORD}" ]; then
echo "${DOCKER_STEPCA_INIT_PASSWORD}" > "${STEPPATH}/password"
echo "${DOCKER_STEPCA_INIT_PASSWORD}" > "${STEPPATH}/provisioner_password"
else
generate_password > "${STEPPATH}/password"
generate_password > "${STEPPATH}/provisioner_password"
fi
if [ -f "${DOCKER_STEPCA_INIT_ROOT_FILE}" ]; then
setup_args=("${setup_args[@]}" --root "${DOCKER_STEPCA_INIT_ROOT_FILE}")
fi
if [ -f "${DOCKER_STEPCA_INIT_KEY_FILE}" ]; then
setup_args=("${setup_args[@]}" --key "${DOCKER_STEPCA_INIT_KEY_FILE}")
fi
if [ -f "${DOCKER_STEPCA_INIT_KEY_PASSWORD_FILE}" ]; then
setup_args=("${setup_args[@]}" --key-password-file "${DOCKER_STEPCA_INIT_KEY_PASSWORD_FILE}")
fi
if [ -n "${DOCKER_STEPCA_INIT_DEPLOYMENT_TYPE}" ]; then
setup_args=("${setup_args[@]}" --deployment-type "${DOCKER_STEPCA_INIT_DEPLOYMENT_TYPE}")
fi
if [ -n "${DOCKER_STEPCA_INIT_WITH_CA_URL}" ]; then
setup_args=("${setup_args[@]}" --with-ca-url "${DOCKER_STEPCA_INIT_WITH_CA_URL}")
fi
if [ "${DOCKER_STEPCA_INIT_SSH}" == "true" ]; then
setup_args=("${setup_args[@]}" --ssh)
fi
if [ "${DOCKER_STEPCA_INIT_ACME}" == "true" ]; then
setup_args=("${setup_args[@]}" --acme)
fi
if [ "${DOCKER_STEPCA_INIT_REMOTE_MANAGEMENT}" == "true" ]; then
setup_args=("${setup_args[@]}" --remote-management
--admin-subject "${DOCKER_STEPCA_INIT_ADMIN_SUBJECT}"
)
fi
step ca init "${setup_args[@]}"
echo ""
if [ "${DOCKER_STEPCA_INIT_REMOTE_MANAGEMENT}" == "true" ]; then
echo "👉 Your CA administrative username is: ${DOCKER_STEPCA_INIT_ADMIN_SUBJECT}"
fi
echo "👉 Your CA administrative password is: $(< $STEPPATH/provisioner_password )"
echo "🤫 This will only be displayed once."
shred -u $STEPPATH/provisioner_password
mv $STEPPATH/password $PWDPATH
}
if [ -f /usr/sbin/pcscd ]; then
if [ -e /var/run/pcscd/pcscd.comm ]; then
echo "Using host pcscd (socket detected at /var/run/pcscd/pcscd.comm)"
else
/usr/sbin/pcscd --disable-polkit
fi
fi
if [ ! -f "${STEPPATH}/config/ca.json" ]; then
init_if_possible
fi
exec "${@}"