42 lines
1.8 KiB
Bash
42 lines
1.8 KiB
Bash
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#!/bin/sh
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# Create TLS self-signed CA certificates for 5 years required to comply
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# with transport security layer requirement.
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# Source:
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# https://opensearch.org/docs/latest/security-plugin/configuration/generate-certificates/#sample-script
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mkdir tls_store
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TLS_DN="/C=CA/ST=OPENSEARCH/L=NODE/O=OPENSEARCH/OU=FTS"
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# Root CA
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openssl genrsa -out root-ca-key.pem 4096
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openssl req -new -x509 -sha256 -key root-ca-key.pem -subj "${TLS_DN}/CN=ROOT" -out root-ca.pem -days 1825
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# Admin cert
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openssl genrsa -out admin-key-temp.pem 4096
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openssl pkcs8 -inform PEM -outform PEM -in admin-key-temp.pem -topk8 -nocrypt -v1 PBE-SHA1-3DES -out admin-key.pem
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openssl req -new -key admin-key.pem -subj "${TLS_DN}/CN=ADMIN" -out admin.csr
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openssl x509 -req -in admin.csr -CA root-ca.pem -CAkey root-ca-key.pem -CAcreateserial -sha256 -out admin.pem -days 1825
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# Node cert
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openssl genrsa -out node-key-temp.pem 4096
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openssl pkcs8 -inform PEM -outform PEM -in node-key-temp.pem -topk8 -nocrypt -v1 PBE-SHA1-3DES -out node-key.pem
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openssl req -new -key node-key.pem -subj "${TLS_DN}/CN=__FTSDOMAIN__" -out node.csr
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openssl x509 -req -in node.csr -CA root-ca.pem -CAkey root-ca-key.pem -CAcreateserial -sha256 -out node.pem -days 1825
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# Client cert
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openssl genrsa -out client-key-temp.pem 4096
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openssl pkcs8 -inform PEM -outform PEM -in client-key-temp.pem -topk8 -nocrypt -v1 PBE-SHA1-3DES -out client-key.pem
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openssl req -new -key client-key.pem -subj "${TLS_DN}/CN=CLIENT" -out client.csr
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openssl x509 -req -in client.csr -CA root-ca.pem -CAkey root-ca-key.pem -CAcreateserial -sha256 -out client.pem -days 1825
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# Cleanup
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rm admin-key-temp.pem \
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admin.csr \
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node-key-temp.pem \
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node.csr \
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client-key-temp.pem \
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client.csr
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# Store
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mv client.pem \
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client-key.pem \
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root-ca.srl \
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root-ca-key.pem -t tls_store
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