smallstep-certificates/docker/entrypoint.sh

54 lines
1.4 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=$(step path)
function generate_password () {
set +o pipefail
< /dev/urandom tr -dc A-Za-z0-9 | head -c40
echo
set -o pipefail
}
# Initialize a CA if not already initialized
function step_ca_init () {
local -a setup_args=(
--name "${DOCKER_STEPCA_INIT_NAME:-Smallstep}"
--provisioner "${DOCKER_STEPCA_INIT_PROVISIONER_NAME:-admin}"
--password-file "${STEPPATH}/password"
--address ":9000"
)
if [ -n "${DOCKER_STEPCA_INIT_PASSWORD}" ]; then
echo "${DOCKER_STEPCA_INIT_PASSWORD}" > "${STEPPATH}/password"
else
generate_password > "${STEPPATH}/password"
fi
if [ -n "${DOCKER_STEPCA_INIT_SSH}" ]; then
setup_args=("${setup_args[@]}" --ssh)
fi
if [ -n "${DOCKER_STEPCA_INIT_DNS_NAMES}" ]; then
setup_args=("$[setup_args[@]}" --dns "localhost" --dns "127.0.0.1" --dns "[::1]")
fi
IFS=',' read -r -a dns_names <<< "${DOCKER_STEPCA_INIT_DNS_NAMES}"
for dns_name in "${dns_names[@]}"
do
setup_args=("${setup_args[@]}" --dns "$dns_name")
done
step ca init "${setup_args[@]}"
mv $STEPPATH/password $PWDPATH
}
if [ ! -f "${STEPPATH}/config/ca.json" ]; then
>&2 echo "There is no ca.json config file; running 'step ca init'."
step_ca_init "${@}"
fi
exec "${@}"