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dex/examples/k8s/gencert.sh

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#!/bin/bash
mkdir -p ssl
cat << EOF > ssl/req.cnf
[req]
req_extensions = v3_req
distinguished_name = req_distinguished_name
[req_distinguished_name]
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = @alt_names
[alt_names]
DNS.1 = dex.example.com
EOF
openssl genrsa -out ssl/ca-key.pem 2048
openssl req -x509 -new -nodes -key ssl/ca-key.pem -days 10 -out ssl/ca.pem -subj "/CN=kube-ca"
openssl genrsa -out ssl/key.pem 2048
openssl req -new -key ssl/key.pem -out ssl/csr.pem -subj "/CN=kube-ca" -config ssl/req.cnf
openssl x509 -req -in ssl/csr.pem -CA ssl/ca.pem -CAkey ssl/ca-key.pem -CAcreateserial -out ssl/cert.pem -days 10 -extensions v3_req -extfile ssl/req.cnf