mirror of
https://gitlab.archlinux.org/archlinux/aurweb.git
synced 2025-02-03 10:43:03 +01:00
123 lines
3.5 KiB
Bash
Executable file
123 lines
3.5 KiB
Bash
Executable file
#!/bin/bash
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# Initialize step-ca and request certificates from it.
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#
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# Certificates created by this service are meant to be used in
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# aurweb Docker's nginx service.
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#
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# If ./data/root_ca.crt is present, CA generation is skipped.
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# If ./data/${host}.{cert,key}.pem is available, host certificate
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# generation is skipped.
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#
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set -eou pipefail
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# /data-based variables.
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DATA_DIR="/data"
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DATA_ROOT_CA="$DATA_DIR/root_ca.crt"
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DATA_CERT="$DATA_DIR/localhost.cert.pem"
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DATA_CERT_KEY="$DATA_DIR/localhost.key.pem"
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# Host certificates requested from the CA (separated by spaces).
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DATA_CERT_HOSTS='localhost'
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# Local step paths and CA configuration values.
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STEP_DIR="$(step-cli path)"
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STEP_CA_CONFIG="$STEP_DIR/config/ca.json"
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STEP_CA_ADDR='127.0.0.1:8443'
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STEP_CA_URL='https://localhost:8443'
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STEP_CA_PROVISIONER='admin@localhost'
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# Password file used for both --password-file and --provisioner-password-file.
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STEP_PASSWD_FILE="$STEP_DIR/password.txt"
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# Hostnames supported by the CA.
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STEP_CA_NAME='aurweb'
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STEP_CA_DNS='localhost'
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make_password() {
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# Create a random 20-length password and write it to $1.
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openssl rand -hex 20 > $1
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}
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setup_step_ca() {
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# Cleanup and setup step ca configuration.
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rm -rf $STEP_DIR/*
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# Initialize `step`
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make_password "$STEP_PASSWD_FILE"
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step-cli ca init \
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--name="$STEP_CA_NAME" \
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--dns="$STEP_CA_DNS" \
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--address="$STEP_CA_ADDR" \
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--password-file="$STEP_PASSWD_FILE" \
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--provisioner="$STEP_CA_PROVISIONER" \
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--provisioner-password-file="$STEP_PASSWD_FILE" \
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--with-ca-url="$STEP_CA_URL"
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# Update ca.json max TLS certificate duration to a year.
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update-step-config "$STEP_CA_CONFIG"
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# Install root_ca.crt as read/writable to /data/root_ca.crt.
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install -m666 "$STEP_DIR/certs/root_ca.crt" "$DATA_ROOT_CA"
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}
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start_step_ca() {
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# Start the step-ca web server.
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step-ca "$STEP_CA_CONFIG" \
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--password-file="$STEP_PASSWD_FILE" &
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until printf "" 2>>/dev/null >>/dev/tcp/127.0.0.1/8443; do
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sleep 1
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done
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}
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kill_step_ca() {
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# Stop the step-ca web server.
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killall step-ca >/dev/null 2>&1 || /bin/true
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}
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install_step_ca() {
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# Install step-ca certificate authority to the system.
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step-cli certificate install "$STEP_DIR/certs/root_ca.crt"
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}
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step_cert_request() {
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# Request a certificate from the step ca.
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step-cli ca certificate \
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--not-after=8800h \
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--provisioner="$STEP_CA_PROVISIONER" \
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--provisioner-password-file="$STEP_PASSWD_FILE" \
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$1 $2 $3
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chmod 666 /data/${1}.*.pem
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}
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if [ ! -f $DATA_ROOT_CA ]; then
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setup_step_ca
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install_step_ca
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fi
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# For all hosts separated by spaces in $DATA_CERT_HOSTS, perform a check
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# for their existence in /data and react accordingly.
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for host in $DATA_CERT_HOSTS; do
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if [ -f /data/${host}.cert.pem ] && [ -f /data/${host}.key.pem ]; then
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# Found an override. Move on to running the service after
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# printing a notification to the user.
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echo "Found '${host}.{cert,key}.pem' override, skipping..."
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echo -n "Note: If you need to regenerate certificates, run "
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echo '`rm -f data/*.{cert,key}.pem` before starting this service.'
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exec "$@"
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else
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# Otherwise, we had a missing cert or key, so remove both.
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rm -f /data/${host}.cert.pem
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rm -f /data/${host}.key.pem
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fi
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done
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start_step_ca
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for host in $DATA_CERT_HOSTS; do
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step_cert_request $host /data/${host}.cert.pem /data/${host}.key.pem
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done
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kill_step_ca
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# Set permissions to /data to rwx for everybody.
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chmod 777 /data
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exec "$@"
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