The service section of the Aerospike ESP Outbound YAML file

The service section of the /etc/aerospike-esp-outbound/aerospike-esp-outbound.yml configures the connector's listening ports, TLS settings, and network interface.

The following options are available:

Option	Required	Default	Description
protocol	no	TCP	Incoming protocol for the connector. See protocols for details.
port	no	8080	List of ports the connector listens to.
address	no	0.0.0.0	List of interface IP addresses the connector binds to. Use 0.0.0.0 for all interfaces.
tls	Required, if port not specified.	N/A	See Configuring TLS.
io-threads	no	# of processors	Number of IO threads to read, parse incoming XDR requests and to write acknowledgments to XDR.
worker-threads	no	# of processors	Number of threads that will invoke the connector to dispatch a record.
max-concurrent-records	no	32768	Maximum number of XDR records to concurrently process in the connector.
manage	no	N/A	See Querying and managing metrics and logs.
cluster-name	no	product-name	Group or cluster this connector instance belongs to. Used for grouping instances in Prometheus.
enable-tcp-xdr-ack-buffering	no	true	Enables buffering of XDR acknowledgments for protocol TCP.
socket-receive-buffer-bytes	no	32768	Number of bytes read from incoming XDR connection in each attempt. We recommend higher buffer size for large records.

For several examples of the service section of the config file, see "Examples" at the bottom of this page.

Protocols

The incoming protocol for the connector. Valid values are:

Protocol	Description
TCP	The change notification source is Database 5.0 or later. This is the default.
HTTP_1_1	The change notification source is Database 4.9 or earlier.
HTTP_2	Change notification source is the ESP connector.

Querying and Managing Metrics and Logs

You can use the Management and Metrics API to query and manage the outbound server metrics and logs using a REST endpoint. These settings are for using the manage subsection of the service section to specify the endpoint and (optionally) TLS settings for securing connections.

Option	Required	Default	Description
port	no	none	List of ports a manage service listens to.
address	no	0.0.0.0	List of interface IP addresses the connector binds to. Use 0.0.0.0 for all interfaces.
tls	Required if port not specified.	N/A	See Configuring TLS below.

Configuring TLS

In the tls option of the service section and the manage section, you can specify TLS settings for making secure connections.

The configuration options are:

Option	Required	Default	Description
port	no		List of HTTPS/TLS ports the server listens to.
key-store	no		Keystore configuration containing the server-side certificate and key. See Configuring a TLS Store.
trust-store	no	Default java trust store.	Keystore configuration containing the trusted CA certificates. See Configuring a TLS Store.
protocols	no	TLSv1.2	List of allowed TLS protocols.
ciphers	no	Default java ciphers	List of allowed ciphers.
revoke-certificates	no		Reject TLS certificates with the serial numbers specified in this list
allowed-peer-names	no		List of client (Aerospike Database nodes) peer names for mutual authentication. If set, only those clients (Aerospike Database nodes) that present certificates matching the peer names will be allowed to connect.
mutual-auth	no	false	Specifies whether the outbound connector must perform mutual authentication with the Aerospike cluster.
cert-refresh-interval-ms	no		Specifies interval in milliseconds to check for updates in configured tls files. If empty, certificate refresh will not be applied.

Configuring a TLS store

The key-store and trust-store options are for describing how TLS keystores and truststores are configured. All relative file paths are considered relative to the directory in which the configuration file is located. See Setting Up TLS Keystores for Aerospike Connect for information about creating keystores.

Option	Required	Default	Description
store-file	yes		The store file.
store-password-file	yes		Read store password from this file.
key-password-file	no		Read key password from this file.
store-type	no	JKS	Keystore type. Valid values are JKS, JCEKS, PKCS12, PKCS11, DKS, Windows_MY, BKS, PEM [1]

[1] PEM format files are supported. See configure a key store and configure a trust store for details.

Configure a TLS Key store with PEM files

OpenSSL default format and PKCS #8 format are supported for private keys.

Option	Required	Description
store-type	Yes	Value should be PEM.
store-file	Yes	Private Key in PEM format. Can be in encrypted or cleartext format.
store-password-file	Optional	Password that protects the private key specified as the value of the store-file parameter.
certificate-chain-files	Yes	List of files containing X.509 certificate chain corresponding to the private key specified in store-file. Multiple entries in each certificate file are allowed. All entries from all files are concatenated in order, with the first X.509 certificate from the first file being added at index 0, and the last X.509 certificate from the last file being added last. The chain must be ordered and contain a X.509 certificate at index 0 corresponding to the Private Key specified in store-file. Any entries not corresponding to a X.509 Certificate are ignored whenreading the PEM format Certificate files

Examples

...
service:
  ...
  tls:
    ...
    key-store:
      store-type: PEM
      store-file: key.pem # Cleartext private key.
      certificate-chain-files: # Certificate chain in multiple PEM files.
        - cert-1.pem
        - cert-2.pem
    ...
  ...
...

...
service:
  ...
  tls:
    ...
    key-store:
      store-type: PEM
      store-file: key.pem
      store-password-file: storepass # Password protecting key.pem.
      certificate-chain-files: certchain.pem
    ...
  ...
...

Configure a TLS Trust store with PEM files

OpenSSL default format and PKCS #8 format are supported for private keys.

Option	Required	Description
store-type	Yes	Value must be PEM.
certificate-files	Yes	X.509 certificates to trust. All X.509 PEM entries in all the files are added to the trust store. Any entries not corresponding to X.509 certificate are ignored.

Examples

...
service:
  ...
  tls:
    ...
    trust-store:
      store-type: PEM
      certificate-files: certs.pem
    ...
  ...
...

...
service:
  ...
  tls:
    ...
    trust-store:
      store-type: PEM
      certificate-files:
        - certs-1.pem
        - certs-2.pem
    ...
  ...
...

Examples

Clear-text only

...
service:
  port: 8080
  address: 192.168.5.154
  manage:
    address: 0.0.0.0
    port: 8902
...

TLS only

...
service:
  tls:
    port: 8443
    allowed-peer-names:
      - asd.aerospike.com
    protocols:
      - tlsv1.3
    trust-store:
      store-file: tls/ca.aerospike.com.truststore.jks
      store-password-file: tls/storepass
    key-store:
      store-file: tls/connector.aerospike.com.keystore.jks
      store-password-file: tls/storepass
      key-password-file: tls/keypass
  manage:
    tls:
      port: 8903
      trust-store:
        store-file: tls/ca.aerospike.com.truststore.jks
        store-password-file: tls/storepass
      key-store:
        store-file: tls/connector.aerospike.com.keystore.jks
        store-password-file: tls/storepass
        key-password-file: tls/keypass
...

Clear text and TLS

...
service:
  port: 8080
  address: 192.168.5.154
  tls:
    port: 8443
    allowed-peer-names:
      - asd.aerospike.com
    protocols:
      - tlsv1.3
    trust-store:
      store-file: tls/ca.aerospike.com.truststore.jks
      store-password-file: tls/storepass
    key-store:
      store-file: tls/connector.aerospike.com.keystore.jks
      store-password-file: tls/storepass
      key-password-file: tls/keypass
  manage:
    address: 0.0.0.0
    port: 8902
    tls:
      port: 8903
      trust-store:
        store-file: tls/ca.aerospike.com.truststore.jks
        store-password-file: tls/storepass
      key-store:
        store-file: tls/connector.aerospike.com.keystore.jks
        store-password-file: tls/storepass
        key-password-file: tls/keypass
...