SSL

SSL Overview

• SSL (Secure Socket Layer) is a security protocol which encrypts the connections established between Webserver and the client (browser).

• In this chapter, we learn how Spinnaker communicates from external parties to Spinnaker Instance, which might be any requests between

  1. Browser & Spinnaker UI (Deck)

  2. Deck and Gateway (API gateway)

  3. Client and Gate

Steps to Generate Self Signed Cert

• A self-signed certificate is an identity certificate that is signed by the same entity whose identity it certifies. In technical terms a self-signed certificate is one signed with its own private key.

• Instructions in this chapter allows user to generate a Self-signed certificate key and server certificate, openssl will be used.

• Follow the below instruction to create self-signed certificate

  1. Execute the below commands to create CA key

     openssl genrsa -des3 -out ca.key 4096

  2. Execute the below commands to Self-sign the Certificate

     openssl req -new -x509 -days 365 -key ca.key -out ca.crt

  Note: Incase if External CA Certificate is being used, skip to the next section to enable the same on Spinnaker.

Steps to Create Server Certificate

• From this Section, let’s learn how to create Certificate Authority and import the same to a Server Certificate.

  1. Execute the below command, to create a Server key and save it safe.

     openssl genrsa -des3 -out server.key 4096

  2. Execute the below command, to generate a certificate signing request for the server. Ensure to specify localhost or Fully Qualified Domain Name of Gate as the Common Name.

         openssl req -new -key server.key -out server.csr

  3. Execute the below command, to use CA sign the server’s request. If, external CA is being used, vendor will take care of this step.

         openssl x509 -req -days 365 -in server.csr -CA ca.crt -CAkey ca.key -
         CAcreateserial -out server.crt

  4. To make the server certificate to importable format convert it to JKS.

  Note

  This creates a p12 keystore file with your certificate imported under the alias “spinnaker” with the key password $YOUR_KEY_PASSWORD.

  1. Execute the below command, to create a JKS file by importing CA Certificate

     keytool -keystore keystore.jks -import -trustcacerts -alias ca -file ca.crt

  2. To import the server certificate, execute the below

  $ keytool -importkeystore \
  -srckeystore server.p12 \
  -srcstoretype pkcs12 \
  -srcalias spinnaker \
  -srcstorepass $YOUR_KEY_PASSWORD \
  -destkeystore keystore.jks \
  -deststoretype jks \
  -destalias spinnaker \
  -deststorepass $YOUR_KEY_PASSWORD \
  -destkeypass $YOUR_KEY_PASSWORD

• Now Spinnaker is all set to use the Java Keystore, which has all the certificate authority and server certificate.

Steps to Configure SSL for Gate and Deck

• Execute the below commands, separate to enable SSL for Gate and Deck. We can use ‘Halyard’ to do the same.

• For Gate:

  KEYSTORE_PATH= # /path/to/keystore.jks
  hal config security api ssl edit \
  --key-alias spinnaker \
  --keystore $KEYSTORE_PATH \
  --keystore-password \
  --keystore-type jks \
  --truststore $KEYSTORE_PATH \
  --truststore-password \
  --truststore-type jks
  hal config security api ssl enable

• For Deck:

  SERVER_CERT= # /path/to/server.crt
  SERVER_KEY= # /path/to/server.key
  
  hal config security ui ssl edit \
  --ssl-certificate-file $SERVER_CERT \
  --ssl-certificate-key-file $SERVER_KEY \
  --ssl-certificate-passphrase
  
  hal config security ui ssl enable

Steps to Deploy Spinnaker with SSL

• Execute the below command to deploy Spinnaker with all the SSL settings

  hal deploy apply

Verify SSL Setup

• To Verify SSL setup, ensure to access all the Spinnaker Endpoints like Gate or Deck over SSL.

Next Steps

• To Proceed further one much choose an authentication method

• OAuth 2.0

• SAML

• LDAP

• X.509