VariableSAML_IDP_CERTIFICATE
DescriptionSAML_IDP_CERTIFICATE Environment Variable

This variable is used to provide a certificate for authentication. It must be in PEM format (see Privacy-Enhanced Mail).

ini files
AUTHENTICATION_METHOD=saml
PUBLIC_URL=$YOUR_SERVERS_BASE_URL
SAML_IDP_SIGN_ON_URL=$IDP_SIGNON_URL
SAML_IDP_ENTITY_ID=$IDP_ENTITY_ID
SAML_IDP_CERTIFICATE=$PATH_TO_PEM
AUTO_CREATE_USER_ON_SUCCESSFUL_LOGIN=true

$PATH_TO_PEM might be /home/humio/GoogleIDPCertificate-humio.com.pem.

See SAML_IDP_SIGN_ON_URL.