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68 lines
2.3 KiB
Bash
68 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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# https://mosquitto.org/man/mosquitto-tls-7.html
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set -euo pipefail
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# Set working directory to project root
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cd "$(dirname "$0")/../"
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CDIR=$(pwd -P)
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export CDIR
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MOSQUITTO_CERTS_DIR="${CDIR}/.mosquitto/certs"
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TLS_CERT_DURATION="${TLS_CERT_DURATION:-365}"
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CA_COMMON_NAME="${CA_COMMON_NAME:-runcible.io}"
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HOSTNAME=$(hostname)
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warn(){
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echo -e "\nFOR LOCAL DEVELOPMENT ONLY!!! These certs do not follow best practices.\n\
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Keys are not encypted! Seriously, don't use this for anything other than local development.\n"
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}
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generate_ca_cert(){
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echo "Generating CA key in ${MOSQUITTO_CERTS_DIR}..."
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openssl genpkey -algorithm RSA -out "${MOSQUITTO_CERTS_DIR}/ca.key"
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echo "Generating CA cert..."
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openssl req -x509 -new -nodes -key "${MOSQUITTO_CERTS_DIR}/ca.key" -sha256 -days "${TLS_CERT_DURATION}" \
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-extensions v3_ca -out "${MOSQUITTO_CERTS_DIR}/ca.crt" -subj "/C=US/O=Runcible/CN=${CA_COMMON_NAME}"
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echo "CA cert generation complete."
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}
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generate_server_cert(){
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echo "Generating server key..."
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openssl genrsa -out "${MOSQUITTO_CERTS_DIR}/server.key" 2048
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echo "Generating cert signing request for CA..."
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openssl req -out "${MOSQUITTO_CERTS_DIR}/server.csr" -key "${MOSQUITTO_CERTS_DIR}/server.key" -new \
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-subj "/C=US/O=Runcible/CN=${HOSTNAME}"
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echo "Sending server CSR to CA..."
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openssl x509 -req -in "${MOSQUITTO_CERTS_DIR}/server.csr" -CA "${MOSQUITTO_CERTS_DIR}/ca.crt" \
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-CAkey "${MOSQUITTO_CERTS_DIR}/ca.key" -CAcreateserial -out "${MOSQUITTO_CERTS_DIR}/server.crt" \
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-days "${TLS_CERT_DURATION}"
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echo "Server cert generation complete."
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}
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generate_client_cert(){
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echo "Creating client cert in $CDIR"
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echo "Generating client key..."
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openssl genrsa -out "${CDIR}/client.key" 2048
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echo "Generating client CSR for CA..."
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openssl req -out "${CDIR}/client.csr" -key "${CDIR}/client.key" -new -subj "/C=US/O=Runcible/CN=localhost"
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echo "Sending client CSR to CA..."
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openssl x509 -req -in "${CDIR}/client.csr" -CA "${MOSQUITTO_CERTS_DIR}/ca.crt" -CAkey "${MOSQUITTO_CERTS_DIR}/ca.key" \
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-CAcreateserial -out "${CDIR}/client.crt" -days "${TLS_CERT_DURATION}"
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echo "Client cert generation complete."
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}
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warn
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generate_ca_cert
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generate_server_cert
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generate_client_cert
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warn |