Aerospike Configuration Mapping

Mapping Between YAML and Aerospike Configuration

Kubernetes uses YAML to express it's configuration whereas the Aerospike DB uses it's own format for configuration which it stores in aerospike.conf.

The Aerospike Kubernetes Operator translates it's YAML configurations to the Aerospike server's own aerospike.conf format.

Different Aerospike DB versions have may have different aerospike.conf representations. Please check config-schemas for JSON schemas for all supported versions.

Translation Conventions

These are the rules we use to translate between Kubernetes' YAML and Aerospike's aerospike.conf format.

Simple Key and Values

Simple key value pairs file translate directly with the exception being storage sizes.

YAML

replication-factor: 2
memory-size: 4294967296

aerospike.conf

replication-factor 2
memory-size 4G

Storage Sizes

Memory, file, and devices sizes in the YAML format are integers and need to be specified as number of bytes. In aerospike.conf one may optionally provide a unit as a string.

YAML

memory-size: 4294967296 # 4G
memory-size: 419430400  # 400M

aerospike.conf

memory-size 4G
memory-size 400M

Lists of Simple Values

YAML uses a key's plural form when there are a list of values (and it uses a list type).

Lists of simple values are written in Aerospike by repeating the same configuration key multiple times.

YAML

addresses:
  - 192.168.1.1
  - 192.168.5.1

aerospike.conf

address 192.168.1.1
address 192.168.5.1

YAML

files:
  - /opt/aerospike/ns1.dat
  - /opt/aerospike/ns2.dat

aerospike.conf

file /opt/aerospike/ns1.dat
file /opt/aerospike/ns2.dat

Fixed Sections

The Aerospike configuration has sections grouping parts of the configuration together. The YAML forms of these are represented as maps.

YAML

service:
  service-threads: 4
  proto-fd-max: 15000

aerospike.conf

service {
  service-threads 4
  proto-fd-max 15000
}

Named Sections

Named sections, which can have multiple named entries in aerospike.conf such as namespace, dc, or datacenter, are translated to a named list of maps in YAML.

The name of the list will be the plural form of the aerospike.conf section.

YAML

namespaces:
  - name: test
    replication-factor: 2
    memory-size: 4294967296
    storage-engine:
      type: device
      files:
        - /opt/aerospike/data/test1.dat
        - /opt/aerospike/data/test2.dat
      filesize: 4294967296
      data-in-memory: true
  - name: bar
    replication-factor: 2
    memory-size: 4294967296
    storage-engine:
      type: memory

aerospike.conf

namespace test {
    replication-factor 2
    memory-size 4G
    storage-engine device {
            file /opt/aerospike/data/test1.dat
            file /opt/aerospike/data/test2.dat
            filesize 4G
            data-in-memory true
    }
}
namespace bar {
    replication-factor 2
    memory-size 4G
    storage-engine memory
}

Typed Sections

Typed sections have a fixed enum type associated with them in aerospike.conf file, such as storage-engine or index-type, and will be translated to maps with additional property type in YAML. The valid values for type will be the valid enum values for the section.

For e.g. storage-engine type property can have values memory, device, pmem.

YAML

namespaces:
  - name: test
    .
    .
    storage-engine:
      type: device
      files:
        - /opt/aerospike/data/test1.dat
        - /opt/aerospike/data/test2.dat
      filesize: 4294967296
      data-in-memory: true

aerospike.conf

namespace test {
    .
    .
    storage-engine device {
            file /opt/aerospike/data/test1.dat
            file /opt/aerospike/data/test2.dat
            filesize 4G
            data-in-memory true
    }
}

Complete Example

YAML

service:
  proto-fd-max: 15000

security:
  enable-security: true

logging:
  - name: console
    any: info
  - name: /var/log/aerospike/aerospike.log
    any: info

xdr:
  enable-xdr: true
  xdr-digestlog-path: /opt/aerospike/xdr/digestlog 5G
  xdr-compression-threshold: 1000
  datacenters:
    - name: REMOTE_DC_1
      dc-node-address-ports:
       - 172.68.17.123 3000
      dc-security-config-file: /etc/aerospike/secret/security_credentials_DC1.txt

namespaces:
  - name: test
    enable-xdr: true
    xdr-remote-datacenter: REMOTE_DC_1
    replication-factor: 2
    memory-size: 4294967296
    storage-engine:
      type: device
      files:
        - /opt/aerospike/data/test.dat
      filesize: 4294967296
      data-in-memory: true # Store data in memory in addition to file.

mod-lua:
  user-path: /opt/aerospike/usr/udf/lua

aerospike.conf

service {                # Tuning parameters and process owner
    proto-fd-max 15000
}

security {               # (Optional, Enterprise Edition only) to enable
                         # ACL on the cluster
    enable-security true
}

logging {               # Logging configuration
    console {
        context any info
    }
    file /var/log/aerospike/aerospike.log {
        context any info
    }
}

xdr {
    enable-xdr true # Globally enable/disable XDR on local node.
    xdr-digestlog-path /opt/aerospike/digestlog 5G # Track digests to be shipped.
    xdr-compression-threshold 1000
    datacenter REMOTE_DC_1 {
            dc-node-address-port 172.68.17.123 3000
            dc-security-config-file /etc/aerospike/secret/security_credentials_DC1.txt
    }
}

namespace test {       # Define namespace record policies and storage engine
    enable-xdr true
    xdr-remote-datacenter REMOTE_DC_1
    replication-factor 2
    memory-size 4G
    storage-engine device {
            file /opt/aerospike/data/test.dat
            filesize 4G
            data-in-memory true # Store data in memory in addition to file.
    }
}

mod-lua {                # location of UDF modules
    user-path /opt/aerospike/usr/udf/lua
}