forked from TrueCloudLab/certificates
63 lines
No EOL
1.8 KiB
Bash
63 lines
No EOL
1.8 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=$(step path)
|
|
|
|
# List of env vars required for step ca init
|
|
declare -ra REQUIRED_INIT_VARS=(DOCKER_STEPCA_INIT_NAME DOCKER_STEPCA_INIT_DNS DOCKER_STEPCA_INIT_EMAIL)
|
|
|
|
# optional:
|
|
# DOCKER_STEPCA_INIT_PASSWORD (initial CA password)
|
|
# DOCKER_STEPCA_INIT_SSH (boolean: given a non-empty value, create an SSH CA)
|
|
|
|
# Ensure all env vars required to run step ca init are set.
|
|
function init_if_possible () {
|
|
local missing_vars=0
|
|
for var in "${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
|
|
set -o pipefail
|
|
}
|
|
|
|
# Initialize a CA if not already initialized
|
|
function step_ca_init () {
|
|
if [ -n "${DOCKER_STEPCA_INIT_PASSWORD}" ]; then
|
|
echo -n "${DOCKER_STEPCA_INIT_PASSWORD}" > "${STEPPATH}/password"
|
|
else
|
|
generate_password > "${STEPPATH}/password"
|
|
fi
|
|
local -a setup_args=(
|
|
--name "${DOCKER_STEPCA_INIT_NAME}"
|
|
--dns "${DOCKER_STEPCA_INIT_DNS}"
|
|
--provisioner "${DOCKER_STEPCA_INIT_EMAIL}"
|
|
--password-file "${STEPPATH}/password"
|
|
--address ":9000"
|
|
)
|
|
if [ -n "${DOCKER_STEPCA_INIT_SSH}" ]; then
|
|
setup_args=("${setup_args[@]}" --ssh)
|
|
fi
|
|
step ca init "${setup_args[@]}"
|
|
mv $STEPPATH/password $PWDPATH
|
|
}
|
|
|
|
if [ ! -f "${STEPPATH}/config/ca.json" ]; then
|
|
init_if_possible
|
|
fi
|
|
|
|
exec "${@}" |