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2026-05-20 15:23:05 +03:00

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#!/bin/bash
#
DOMAIN=$1 # example.com
WILD=$2 # *.example.com, use W for wildcard
#
DHBITS=4096 #4096 too long...
BITS=4096
PROT=sha256
DAYS=3650 # 10 years
#
SSL=/ssl
RCA=/ssl/root_ca
ICA=/ssl/intermediate_ca
SRV=/ssl/servers
#
CA_TXT='Certificate Authority'
RCA_TXT='Root CA'
ICA_TXT='Intermediate CA'
COUNTRY_NAME=${CERT_COUNTRY_NAME:-RU}
STATE_OR_PROVINCE_NAME=${CERT_STATE_OR_PROVINCE_NAME:-Kaliningrad Region}
LOCALITY_NAME=${CERT_LOCALITY_NAME:-Kaliningrad}
ORGANIZATION_NAME=${CERT_ORGANIZATION_NAME:-Dev Corporation Ltd}
ORGANIZATIONAL_UNIT_NAME=${CERT_ORGANIZATIONAL_UNIT_NAME:-Dev Corporation Ltd Unit}
EMAIL_ADDRESS=${CERT_EMAIL_ADDRESS:-info@info@devcorporation.ltd}
# Wildcard option
if [ "$WILD" = "W" ]
then
COMMON_NAME='*.'${DOMAIN}
DNS1='DNS.1 = '${DOMAIN}
DNS2='DNS.2 = *.'${DOMAIN}
else
COMMON_NAME=${DOMAIN}
DNS1='DNS = '${DOMAIN}
DNS2=''
fi
#
echo 'Create OpenSSL confs...'
echo '# OpenSSL configuration file.
# Copy to `'${SRV}'/openssl_'${DOMAIN}'.cnf`.
[ ca ]
# `man ca`
default_ca = CA_default
[ CA_default ]
# Directory and file locations.
dir = '${SRV}'
certs = $dir/certs
crl_dir = $dir/crl
new_certs_dir = $dir/newcerts
database = $dir/index.txt
serial = $dir/serial
RANDFILE = $dir/private/.rand
# The root key and root certificate.
private_key = '${ICA}'/private/intermediateCA.key.pem
certificate = '${ICA}'/certs/intermediateCA.cert.pem
# For certificate revocation lists.
crlnumber = $dir/crlnumber
crl = $dir/crl/intermediate.crl.pem
crl_extensions = crl_ext
default_crl_days = 30
# SHA-1 is deprecated, so use SHA-2 instead.
default_md = '${PROT}'
name_opt = ca_default
cert_opt = ca_default
default_days = '${DAYS}'
preserve = no
policy = policy_loose
[ policy_strict ]
# The root CA should only sign certificates that match.
# See the POLICY FORMAT section of `man ca`.
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ policy_loose ]
# Allow the CA to sign a more diverse range of certificates.
# See the POLICY FORMAT section of the `ca` man page.
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ req ]
# Options for the `req` tool (`man req`).
default_bits = '${BITS}'
distinguished_name = req_distinguished_name
string_mask = utf8only
# SHA-1 is deprecated, so use SHA-2 instead.
default_md = '${PROT}'
# Extension to add when the -x509 option is used.
x509_extensions = v3_ca
[ req_distinguished_name ]
# See <https://en.wikipedia.org/wiki/Certificate_signing_request>.
countryName = '${COUNTRY_NAME}'
stateOrProvinceName = '${STATE_OR_PROVINCE_NAME}'
localityName = '${LOCALITY_NAME}'
0.organizationName = '${ORGANIZATION_NAME}'
organizationalUnitName = '${ORGANIZATION_NAME}' '${CA_TXT}'
commonName = '${ORGANIZATION_NAME}' '${ICA_TXT}'
emailAddress = '${EMAIL_ADDRESS}'
# Optionally, specify some defaults.
countryName_default = '${COUNTRY_NAME}'
stateOrProvinceName_default = '${STATE_OR_PROVINCE_NAME}'
localityName_default = '${LOCALITY_NAME}'
0.organizationName_default = '${ORGANIZATION_NAME}'
organizationalUnitName_default = '${ORGANIZATION_NAME}' '${CA_TXT}'
emailAddress_default = '${EMAIL_ADDRESS}'
[ v3_ca ]
# Extensions for a typical CA (`man x509v3_config`).
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid:always,issuer
basicConstraints = critical, CA:true
keyUsage = critical, digitalSignature, cRLSign, keyCertSign
[ v3_intermediate_ca ]
# Extensions for a typical CA (`man x509v3_config`).
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid:always,issuer
basicConstraints = critical, CA:true, pathlen:0
keyUsage = critical, digitalSignature, cRLSign, keyCertSign
[ usr_cert ]
# Extensions for client certificates (`man x509v3_config`).
basicConstraints = CA:FALSE
nsCertType = client, email
nsComment = "OpenSSL Generated Certificate for QA"
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid,issuer
keyUsage = critical, nonRepudiation, digitalSignature, keyEncipherment
extendedKeyUsage = clientAuth, emailProtection
[ server_cert ]
# Extensions for server certificates (`man x509v3_config`).
basicConstraints = CA:FALSE
nsCertType = server
nsComment = "OpenSSL Generated Certificate for QA"
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid,issuer:always
keyUsage = critical, digitalSignature, nonRepudiation, keyEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alternate_names
[ crl_ext ]
# Extension for CRLs (`man x509v3_config`).
authorityKeyIdentifier=keyid:always
[ ocsp ]
# Extension for OCSP signing certificates (`man ocsp`).
basicConstraints = CA:FALSE
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid,issuer
keyUsage = critical, digitalSignature
extendedKeyUsage = critical, OCSPSigning
[ alternate_names ]
'${DNS1}'
'${DNS2}'
' >> ${SRV}'/openssl_'${DOMAIN}'.cnf'
#
# Server cert
#
echo 'Server cert...'
cd ${SRV}
openssl genrsa -out private/${DOMAIN}.key.pem ${BITS}
openssl req -config openssl_${DOMAIN}.cnf -key private/${DOMAIN}.key.pem -new -${PROT} -out csr/${DOMAIN}.csr.pem -subj "/C=${COUNTRY_NAME}/ST=${STATE_OR_PROVINCE_NAME}/L=${LOCALITY_NAME}/O=${ORGANIZATION_NAME}/OU=${ORGANIZATIONAL_UNIT_NAME} Web Services/CN=${COMMON_NAME}/emailAddress=${EMAIL_ADDRESS}"
openssl ca -batch -config openssl_${DOMAIN}.cnf -extensions server_cert -days ${DAYS} -notext -md ${PROT} -in csr/${DOMAIN}.csr.pem -out certs/${DOMAIN}.cert.pem
cp certs/${DOMAIN}.cert.pem ${SSL}/${DOMAIN}.cert.pem
cp private/${DOMAIN}.key.pem ${SSL}/${DOMAIN}.key.pem
openssl x509 -noout -text -in certs/${DOMAIN}.cert.pem
openssl verify -CAfile ${SSL}/ca-chain.cert.pem certs/${DOMAIN}.cert.pem
#
# Chain
#
echo 'Chain...'
cat ${SRV}/certs/${DOMAIN}.cert.pem ${ICA}/certs/intermediateCA.cert.pem > ${SSL}/${DOMAIN}.chain.cert.pem
#
# Fullchain
#
echo 'Full chain...'
cat ${SRV}/certs/${DOMAIN}.cert.pem ${ICA}/certs/intermediateCA.cert.pem ${RCA}/certs/rootCA.cert.pem > ${SSL}/${DOMAIN}.fullchain.cert.pem
#
# Fix key file rights
#
chmod 644 ${SSL}/${DOMAIN}.key.pem
#