core.yaml.bak

# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#

###############################################################################
#
#    Peer section
#
###############################################################################
peer:

    # The peer id provides a name for this peer instance and is used when
    # naming docker resources.
    id: jdoe

    # The networkId allows for logical separation of networks and is used when
    # naming docker resources.
    networkId: dev

    # The Address at local network interface this Peer will listen on.
    # By default, it will listen on all network interfaces
    listenAddress: 0.0.0.0:7051

    # The endpoint this peer uses to listen for inbound chaincode connections.
    # If this is commented-out, the listen address is selected to be
    # the peer's address (see below) with port 7052
    # chaincodeListenAddress: 0.0.0.0:7052

    # The endpoint the chaincode for this peer uses to connect to the peer.
    # If this is not specified, the chaincodeListenAddress address is selected.
    # And if chaincodeListenAddress is not specified, address is selected from
    # peer address (see below). If specified peer address is invalid then it
    # will fallback to the auto detected IP (local IP) regardless of the peer
    # addressAutoDetect value.
    # chaincodeAddress: 0.0.0.0:7052

    # When used as peer config, this represents the endpoint to other peers
    # in the same organization. For peers in other organization, see
    # gossip.externalEndpoint for more info.
    # When used as CLI config, this means the peer's endpoint to interact with
    address: 0.0.0.0:7051

    # Whether the Peer should programmatically determine its address
    # This case is useful for docker containers.
    # When set to true, will override peer address.
    addressAutoDetect: false

    # Settings for the Peer's gateway server.
    gateway:
        # Whether the gateway is enabled for this Peer.
        enabled: true
        # endorsementTimeout is the duration the gateway waits for a response
        # from other endorsing peers before returning a timeout error to the client.
        endorsementTimeout: 30s
        # broadcastTimeout is the duration the gateway waits for a response
        # from ordering nodes before returning a timeout error to the client.
        broadcastTimeout: 30s
        # dialTimeout is the duration the gateway waits for a connection
        # to other network nodes.
        dialTimeout: 2m


    # Keepalive settings for peer server and clients
    keepalive:
        # Interval is the duration after which if the server does not see
        # any activity from the client it pings the client to see if it's alive
        interval: 7200s
        # Timeout is the duration the server waits for a response
        # from the client after sending a ping before closing the connection
        timeout: 20s
        # MinInterval is the minimum permitted time between client pings.
        # If clients send pings more frequently, the peer server will
        # disconnect them
        minInterval: 60s
        # Client keepalive settings for communicating with other peer nodes
        client:
            # Interval is the time between pings to peer nodes.  This must
            # greater than or equal to the minInterval specified by peer
            # nodes
            interval: 60s
            # Timeout is the duration the client waits for a response from
            # peer nodes before closing the connection
            timeout: 20s
        # DeliveryClient keepalive settings for communication with ordering
        # nodes.
        deliveryClient:
            # Interval is the time between pings to ordering nodes.  This must
            # greater than or equal to the minInterval specified by ordering
            # nodes.
            interval: 60s
            # Timeout is the duration the client waits for a response from
            # ordering nodes before closing the connection
            timeout: 20s


    # Gossip related configuration
    gossip:
        # Bootstrap set to initialize gossip with.
        # This is a list of other peers that this peer reaches out to at startup.
        # Important: The endpoints here have to be endpoints of peers in the same
        # organization, because the peer would refuse connecting to these endpoints
        # unless they are in the same organization as the peer.
        bootstrap: 127.0.0.1:7051

        # NOTE: orgLeader and useLeaderElection parameters are mutual exclusive.
        # Setting both to true would result in the termination of the peer
        # since this is undefined state. If the peers are configured with
        # useLeaderElection=false, make sure there is at least 1 peer in the
        # organization that its orgLeader is set to true.

        # Defines whenever peer will initialize dynamic algorithm for
        # "leader" selection, where leader is the peer to establish
        # connection with ordering service and use delivery protocol
        # to pull ledger blocks from ordering service.
        useLeaderElection: false
        # Statically defines peer to be an organization "leader",
        # where this means that current peer will maintain connection
        # with ordering service and disseminate block across peers in
        # its own organization. Multiple peers or all peers in an organization
        # may be configured as org leaders, so that they all pull
        # blocks directly from ordering service.
        orgLeader: true

        # Interval for membershipTracker polling
        membershipTrackerInterval: 5s

        # Overrides the endpoint that the peer publishes to peers
        # in its organization. For peers in foreign organizations
        # see 'externalEndpoint'
        endpoint:
        # Maximum count of blocks stored in memory
        maxBlockCountToStore: 10
        # Max time between consecutive message pushes(unit: millisecond)
        maxPropagationBurstLatency: 10ms
        # Max number of messages stored until a push is triggered to remote peers
        maxPropagationBurstSize: 10
        # Number of times a message is pushed to remote peers
        propagateIterations: 1
        # Number of peers selected to push messages to
        propagatePeerNum: 3
        # Determines frequency of pull phases(unit: second)
        # Must be greater than digestWaitTime + responseWaitTime
        pullInterval: 4s
        # Number of peers to pull from
        pullPeerNum: 3
        # Determines frequency of pulling state info messages from peers(unit: second)
        requestStateInfoInterval: 4s
        # Determines frequency of pushing state info messages to peers(unit: second)
        publishStateInfoInterval: 4s
        # Maximum time a stateInfo message is kept until expired
        stateInfoRetentionInterval:
        # Time from startup certificates are included in Alive messages(unit: second)
        publishCertPeriod: 10s
        # Should we skip verifying block messages or not (currently not in use)
        skipBlockVerification: false
        # Dial timeout(unit: second)
        dialTimeout: 3s
        # Connection timeout(unit: second)
        connTimeout: 2s
        # Buffer size of received messages
        recvBuffSize: 20
        # Buffer size of sending messages
        sendBuffSize: 200
        # Time to wait before pull engine processes incoming digests (unit: second)
        # Should be slightly smaller than requestWaitTime
        digestWaitTime: 1s
        # Time to wait before pull engine removes incoming nonce (unit: milliseconds)
        # Should be slightly bigger than digestWaitTime
        requestWaitTime: 1500ms
        # Time to wait before pull engine ends pull (unit: second)
        responseWaitTime: 2s
        # Alive check interval(unit: second)
        aliveTimeInterval: 5s
        # Alive expiration timeout(unit: second)
        aliveExpirationTimeout: 25s
        # Reconnect interval(unit: second)
        reconnectInterval: 25s
        # Max number of attempts to connect to a peer
        maxConnectionAttempts: 120
        # Message expiration factor for alive messages
        msgExpirationFactor: 20
        # This is an endpoint that is published to peers outside of the organization.
        # If this isn't set, the peer will not be known to other organizations and will not be exposed via service discovery.
        externalEndpoint:
        # Leader election service configuration
        election:
            # Longest time peer waits for stable membership during leader election startup (unit: second)
            startupGracePeriod: 15s
            # Interval gossip membership samples to check its stability (unit: second)
            membershipSampleInterval: 1s
            # Time passes since last declaration message before peer decides to perform leader election (unit: second)
            leaderAliveThreshold: 10s
            # Time between peer sends propose message and declares itself as a leader (sends declaration message) (unit: second)
            leaderElectionDuration: 5s

        pvtData:
            # pullRetryThreshold determines the maximum duration of time private data corresponding for a given block
            # would be attempted to be pulled from peers until the block would be committed without the private data
            pullRetryThreshold: 60s
            # As private data enters the transient store, it is associated with the peer's ledger's height at that time.
            # transientstoreMaxBlockRetention defines the maximum difference between the current ledger's height upon commit,
            # and the private data residing inside the transient store that is guaranteed not to be purged.
            # Private data is purged from the transient store when blocks with sequences that are multiples
            # of transientstoreMaxBlockRetention are committed.
            transientstoreMaxBlockRetention: 1000
            # pushAckTimeout is the maximum time to wait for an acknowledgement from each peer
            # at private data push at endorsement time.
            pushAckTimeout: 3s
            # Block to live pulling margin, used as a buffer
            # to prevent peer from trying to pull private data
            # from peers that is soon to be purged in next N blocks.
            # This helps a newly joined peer catch up to current
            # blockchain height quicker.
            btlPullMargin: 10
            # the process of reconciliation is done in an endless loop, while in each iteration reconciler tries to
            # pull from the other peers the most recent missing blocks with a maximum batch size limitation.
            # reconcileBatchSize determines the maximum batch size of missing private data that will be reconciled in a
            # single iteration.
            reconcileBatchSize: 10
            # reconcileSleepInterval determines the time reconciler sleeps from end of an iteration until the beginning
            # of the next reconciliation iteration.
            reconcileSleepInterval: 1m
            # reconciliationEnabled is a flag that indicates whether private data reconciliation is enable or not.
            reconciliationEnabled: true
            # skipPullingInvalidTransactionsDuringCommit is a flag that indicates whether pulling of invalid
            # transaction's private data from other peers need to be skipped during the commit time and pulled
            # only through reconciler.
            skipPullingInvalidTransactionsDuringCommit: false
            # implicitCollectionDisseminationPolicy specifies the dissemination  policy for the peer's own implicit collection.
            # When a peer endorses a proposal that writes to its own implicit collection, below values override the default values
            # for disseminating private data.
            # Note that it is applicable to all channels the peer has joined. The implication is that requiredPeerCount has to
            # be smaller than the number of peers in a channel that has the lowest numbers of peers from the organization.
            implicitCollectionDisseminationPolicy:
               # requiredPeerCount defines the minimum number of eligible peers to which the peer must successfully
               # disseminate private data for its own implicit collection during endorsement. Default value is 0.
               requiredPeerCount: 0
               # maxPeerCount defines the maximum number of eligible peers to which the peer will attempt to
               # disseminate private data for its own implicit collection during endorsement. Default value is 1.
               maxPeerCount: 1

        # Gossip state transfer related configuration
        state:
            # indicates whenever state transfer is enabled or not
            # default value is false, i.e. state transfer is active
            # and takes care to sync up missing blocks allowing
            # lagging peer to catch up to speed with rest network.
            # Keep in mind that when peer.gossip.useLeaderElection is true
            # and there are several peers in the organization,
            # or peer.gossip.useLeaderElection is false alongside with
            # peer.gossip.orgleader being false, the peer's ledger may lag behind
            # the rest of the peers and will never catch up due to state transfer
            # being disabled.
            enabled: false
            # checkInterval interval to check whether peer is lagging behind enough to
            # request blocks via state transfer from another peer.
            checkInterval: 10s
            # responseTimeout amount of time to wait for state transfer response from
            # other peers
            responseTimeout: 3s
            # batchSize the number of blocks to request via state transfer from another peer
            batchSize: 10
            # blockBufferSize reflects the size of the re-ordering buffer
            # which captures blocks and takes care to deliver them in order
            # down to the ledger layer. The actual buffer size is bounded between
            # 0 and 2*blockBufferSize, each channel maintains its own buffer
            blockBufferSize: 20
            # maxRetries maximum number of re-tries to ask
            # for single state transfer request
            maxRetries: 3

    # TLS Settings
    tls:
        # Require server-side TLS
        enabled:  false
        # Require client certificates / mutual TLS for inbound connections.
        # Note that clients that are not configured to use a certificate will
        # fail to connect to the peer.
        clientAuthRequired: false
        # X.509 certificate used for TLS server
        cert:
            file: tls/server.crt
        # Private key used for TLS server
        key:
            file: tls/server.key
        # rootcert.file represents the trusted root certificate chain used for verifying certificates
        # of other nodes during outbound connections.
        # It is not required to be set, but can be used to augment the set of TLS CA certificates
        # available from the MSPs of each channel’s configuration.
        rootcert:
            file: tls/ca.crt
        # If mutual TLS is enabled, clientRootCAs.files contains a list of additional root certificates
        # used for verifying certificates of client connections.
        # It augments the set of TLS CA certificates available from the MSPs of each channel’s configuration.
        # Minimally, set your organization's TLS CA root certificate so that the peer can receive join channel requests.
        clientRootCAs:
            files:
              - tls/ca.crt
        # Private key used for TLS when making client connections.
        # If not set, peer.tls.key.file will be used instead
        clientKey:
            file:
        # X.509 certificate used for TLS when making client connections.
        # If not set, peer.tls.cert.file will be used instead
        clientCert:
            file:

    # Authentication contains configuration parameters related to authenticating
    # client messages
    authentication:
        # the acceptable difference between the current server time and the
        # client's time as specified in a client request message
        timewindow: 15m

    # Path on the file system where peer will store data (eg ledger). This
    # location must be access control protected to prevent unintended
    # modification that might corrupt the peer operations.
    # The path may be relative to FABRIC_CFG_PATH or an absolute path.
    fileSystemPath: /var/hyperledger/production

    # BCCSP (Blockchain crypto provider): Select which crypto implementation or
    # library to use
    BCCSP:
        Default: SW
        # Settings for the SW crypto provider (i.e. when DEFAULT: SW)
        SW:
            # TODO: The default Hash and Security level needs refactoring to be
            # fully configurable. Changing these defaults requires coordination
            # SHA2 is hardcoded in several places, not only BCCSP
            Hash: SHA2
            Security: 256
            # Location of Key Store
            FileKeyStore:
                # If "", defaults to 'mspConfigPath'/keystore
                KeyStore:
        # Settings for the PKCS#11 crypto provider (i.e. when DEFAULT: PKCS11)
        PKCS11:
            # Location of the PKCS11 module library
            Library:
            # Token Label
            Label:
            # User PIN
            Pin:
            Hash:
            Security:
            SoftwareVerify:
            Immutable:
            AltID:
            KeyIds:

    # Path on the file system where peer will find MSP local configurations
    # The path may be relative to FABRIC_CFG_PATH or an absolute path.
    mspConfigPath: msp

    # Identifier of the local MSP
    # ----!!!!IMPORTANT!!!-!!!IMPORTANT!!!-!!!IMPORTANT!!!!----
    # Deployers need to change the value of the localMspId string.
    # In particular, the name of the local MSP ID of a peer needs
    # to match the name of one of the MSPs in each of the channel
    # that this peer is a member of. Otherwise this peer's messages
    # will not be identified as valid by other nodes.
    localMspId: SampleOrg

    # CLI common client config options
    client:
        # connection timeout
        connTimeout: 3s

    # Delivery service related config
    deliveryclient:
        # Enables this peer to disseminate blocks it pulled from the ordering service
        # via gossip.
        # Note that 'gossip.state.enabled' controls point to point block replication
        # of blocks committed in the past.
        blockGossipEnabled: true
        # It sets the total time the delivery service may spend in reconnection
        # attempts until its retry logic gives up and returns an error,
        # ignored if peer is a static leader
        reconnectTotalTimeThreshold: 3600s

        # It sets the delivery service <-> ordering service node connection timeout
        connTimeout: 3s

        # It sets the delivery service maximal delay between consecutive retries.
        # Time between retries will have exponential backoff until hitting this threshold.
        reConnectBackoffThreshold: 3600s

        # A list of orderer endpoint addresses which should be overridden
        # when found in channel configurations.
        addressOverrides:
        #  - from:
        #    to:
        #    caCertsFile:
        #  - from:
        #    to:
        #    caCertsFile:

    # Type for the local MSP - by default it's of type bccsp
    localMspType: bccsp

    # Used with Go profiling tools only in none production environment. In
    # production, it should be disabled (eg enabled: false)
    profile:
        enabled:     false
        listenAddress: 0.0.0.0:6060

    # Handlers defines custom handlers that can filter and mutate
    # objects passing within the peer, such as:
    #   Auth filter - reject or forward proposals from clients
    #   Decorators  - append or mutate the chaincode input passed to the chaincode
    #   Endorsers   - Custom signing over proposal response payload and its mutation
    # Valid handler definition contains:
    #   - A name which is a factory method name defined in
    #     core/handlers/library/library.go for statically compiled handlers
    #   - library path to shared object binary for pluggable filters
    # Auth filters and decorators are chained and executed in the order that
    # they are defined. For example:
    # authFilters:
    #   -
    #     name: FilterOne
    #     library: /opt/lib/filter.so
    #   -
    #     name: FilterTwo
    # decorators:
    #   -
    #     name: DecoratorOne
    #   -
    #     name: DecoratorTwo
    #     library: /opt/lib/decorator.so
    # Endorsers are configured as a map that its keys are the endorsement system chaincodes that are being overridden.
    # Below is an example that overrides the default ESCC and uses an endorsement plugin that has the same functionality
    # as the default ESCC.
    # If the 'library' property is missing, the name is used as the constructor method in the builtin library similar
    # to auth filters and decorators.
    # endorsers:
    #   escc:
    #     name: DefaultESCC
    #     library: /etc/hyperledger/fabric/plugin/escc.so
    handlers:
        authFilters:
          -
            name: DefaultAuth
          -
            name: ExpirationCheck    # This filter checks identity x509 certificate expiration
        decorators:
          -
            name: DefaultDecorator
        endorsers:
          escc:
            name: DefaultEndorsement
            library:
        validators:
          vscc:
            name: DefaultValidation
            library:

    #    library: /etc/hyperledger/fabric/plugin/escc.so
    # Number of goroutines that will execute transaction validation in parallel.
    # By default, the peer chooses the number of CPUs on the machine. Set this
    # variable to override that choice.
    # NOTE: overriding this value might negatively influence the performance of
    # the peer so please change this value only if you know what you're doing
    validatorPoolSize:

    # The discovery service is used by clients to query information about peers,
    # such as - which peers have joined a certain channel, what is the latest
    # channel config, and most importantly - given a chaincode and a channel,
    # what possible sets of peers satisfy the endorsement policy.
    discovery:
        enabled: true
        # Whether the authentication cache is enabled or not.
        authCacheEnabled: true
        # The maximum size of the cache, after which a purge takes place
        authCacheMaxSize: 1000
        # The proportion (0 to 1) of entries that remain in the cache after the cache is purged due to overpopulation
        authCachePurgeRetentionRatio: 0.75
        # Whether to allow non-admins to perform non channel scoped queries.
        # When this is false, it means that only peer admins can perform non channel scoped queries.
        orgMembersAllowedAccess: false

    # Limits is used to configure some internal resource limits.
    limits:
        # Concurrency limits the number of concurrently running requests to a service on each peer.
        # Currently this option is only applied to endorser service and deliver service.
        # When the property is missing or the value is 0, the concurrency limit is disabled for the service.
        concurrency:
            # endorserService limits concurrent requests to endorser service that handles chaincode deployment, query and invocation,
            # including both user chaincodes and system chaincodes.
            endorserService: 2500
            # deliverService limits concurrent event listeners registered to deliver service for blocks and transaction events.
            deliverService: 2500
            # gatewayService limits concurrent requests to gateway service that handles the submission and evaluation of transactions.
            gatewayService: 500

    # Since all nodes should be consistent it is recommended to keep
    # the default value of 100MB for MaxRecvMsgSize & MaxSendMsgSize
    # Max message size in bytes GRPC server and client can receive
    maxRecvMsgSize: 104857600
    # Max message size in bytes GRPC server and client can send
    maxSendMsgSize: 104857600

###############################################################################
#
#    VM section
#
###############################################################################
vm:

    # Endpoint of the vm management system.  For docker can be one of the following in general
    # unix:///var/run/docker.sock
    # http://localhost:2375
    # https://localhost:2376
    # If you utilize external chaincode builders and don't need the default Docker chaincode builder,
    # the endpoint should be unconfigured so that the peer's Docker health checker doesn't get registered.
    endpoint: unix:///var/run/docker.sock

    # settings for docker vms
    docker:
        tls:
            enabled: false
            ca:
                file: docker/ca.crt
            cert:
                file: docker/tls.crt
            key:
                file: docker/tls.key

        # Enables/disables the standard out/err from chaincode containers for
        # debugging purposes
        attachStdout: false

        # Parameters on creating docker container.
        # Container may be efficiently created using ipam & dns-server for cluster
        # NetworkMode - sets the networking mode for the container. Supported
        # standard values are: `host`(default),`bridge`,`ipvlan`,`none`.
        # Dns - a list of DNS servers for the container to use.
        # Note:  `Privileged` `Binds` `Links` and `PortBindings` properties of
        # Docker Host Config are not supported and will not be used if set.
        # LogConfig - sets the logging driver (Type) and related options
        # (Config) for Docker. For more info,
        # https://docs.docker.com/engine/admin/logging/overview/
        # Note: Set LogConfig using Environment Variables is not supported.
        hostConfig:
            NetworkMode: host
            Dns:
               # - 192.168.0.1
            LogConfig:
                Type: json-file
                Config:
                    max-size: "50m"
                    max-file: "5"
            Memory: 2147483648

###############################################################################
#
#    Chaincode section
#
###############################################################################
chaincode:

    # The id is used by the Chaincode stub to register the executing Chaincode
    # ID with the Peer and is generally supplied through ENV variables
    # the `path` form of ID is provided when installing the chaincode.
    # The `name` is used for all other requests and can be any string.
    id:
        path:
        name:

    # Generic builder environment, suitable for most chaincode types
    builder: $(DOCKER_NS)/fabric-ccenv:$(TWO_DIGIT_VERSION)

    # Enables/disables force pulling of the base docker images (listed below)
    # during user chaincode instantiation.
    # Useful when using moving image tags (such as :latest)
    pull: false

    golang:
        # golang will never need more than baseos
        runtime: $(DOCKER_NS)/fabric-baseos:$(TWO_DIGIT_VERSION)

        # whether or not golang chaincode should be linked dynamically
        dynamicLink: false

    java:
        # This is an image based on java:openjdk-8 with addition compiler
        # tools added for java shim layer packaging.
        # This image is packed with shim layer libraries that are necessary
        # for Java chaincode runtime.
        runtime: $(DOCKER_NS)/fabric-javaenv:$(TWO_DIGIT_VERSION)

    node:
        # This is an image based on node:$(NODE_VER)-alpine
        runtime: $(DOCKER_NS)/fabric-nodeenv:$(TWO_DIGIT_VERSION)

    # List of directories to treat as external builders and launchers for
    # chaincode. The external builder detection processing will iterate over the
    # builders in the order specified below.
    # If you don't need to fallback to the default Docker builder, also unconfigure vm.endpoint above.
    # To override this property via env variable use CORE_CHAINCODE_EXTERNALBUILDERS: [{name: x, path: dir1}, {name: y, path: dir2}]
    # The path must be an absolute path.
    externalBuilders:
       - name: ccaas_builder
         path: /opt/hyperledger/ccaas_builder
         propagateEnvironment:
           - CHAINCODE_AS_A_SERVICE_BUILDER_CONFIG


    # The maximum duration to wait for the chaincode build and install process
    # to complete.
    installTimeout: 300s

    # Timeout duration for starting up a container and waiting for Register
    # to come through.
    startuptimeout: 300s

    # Timeout duration for Invoke and Init calls to prevent runaway.
    # This timeout is used by all chaincodes in all the channels, including
    # system chaincodes.
    # Note that during Invoke, if the image is not available (e.g. being
    # cleaned up when in development environment), the peer will automatically
    # build the image, which might take more time. In production environment,
    # the chaincode image is unlikely to be deleted, so the timeout could be
    # reduced accordingly.
    executetimeout: 30s

    # There are 2 modes: "dev" and "net".
    # In dev mode, user runs the chaincode after starting peer from
    # command line on local machine.
    # In net mode, peer will run chaincode in a docker container.
    mode: net

    # keepalive in seconds. In situations where the communication goes through a
    # proxy that does not support keep-alive, this parameter will maintain connection
    # between peer and chaincode.
    # A value <= 0 turns keepalive off
    keepalive: 0

    # enabled system chaincodes
    system:
        _lifecycle: enable
        cscc: enable
        lscc: enable
        qscc: enable

    # Logging section for the chaincode container
    logging:
      # Default level for all loggers within the chaincode container
      level:  info
      # Override default level for the 'shim' logger
      shim:   warning
      # Format for the chaincode container logs
      format: '%{color}%{time:2006-01-02 15:04:05.000 MST} [%{module}] %{shortfunc} -> %{level:.4s} %{id:03x}%{color:reset} %{message}'

###############################################################################
#
#    Ledger section - ledger configuration encompasses both the blockchain
#    and the state
#
###############################################################################
ledger:

  blockchain:

  state:
    # stateDatabase - options are "goleveldb", "CouchDB"
    # goleveldb - default state database stored in goleveldb.
    # CouchDB - store state database in CouchDB
    stateDatabase: goleveldb
    # Limit on the number of records to return per query
    totalQueryLimit: 100000
    couchDBConfig:
       # It is recommended to run CouchDB on the same server as the peer, and
       # not map the CouchDB container port to a server port in docker-compose.
       # Otherwise proper security must be provided on the connection between
       # CouchDB client (on the peer) and server.
       couchDBAddress: 127.0.0.1:5984
       # This username must have read and write authority on CouchDB
       username:
       # The password is recommended to pass as an environment variable
       # during start up (eg CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD).
       # If it is stored here, the file must be access control protected
       # to prevent unintended users from discovering the password.
       password:
       # Number of retries for CouchDB errors
       maxRetries: 3
       # Number of retries for CouchDB errors during peer startup.
       # The delay between retries doubles for each attempt.
       # Default of 10 retries results in 11 attempts over 2 minutes.
       maxRetriesOnStartup: 10
       # CouchDB request timeout (unit: duration, e.g. 20s)
       requestTimeout: 35s
       # Limit on the number of records per each CouchDB query
       # Note that chaincode queries are only bound by totalQueryLimit.
       # Internally the chaincode may execute multiple CouchDB queries,
       # each of size internalQueryLimit.
       internalQueryLimit: 1000
       # Limit on the number of records per CouchDB bulk update batch
       maxBatchUpdateSize: 1000
       # Create the _global_changes system database
       # This is optional.  Creating the global changes database will require
       # additional system resources to track changes and maintain the database
       createGlobalChangesDB: false
       # CacheSize denotes the maximum mega bytes (MB) to be allocated for the in-memory state
       # cache. Note that CacheSize needs to be a multiple of 32 MB. If it is not a multiple
       # of 32 MB, the peer would round the size to the next multiple of 32 MB.
       # To disable the cache, 0 MB needs to be assigned to the cacheSize.
       cacheSize: 64

  history:
    # enableHistoryDatabase - options are true or false
    # Indicates if the history of key updates should be stored.
    # All history 'index' will be stored in goleveldb, regardless if using
    # CouchDB or alternate database for the state.
    enableHistoryDatabase: true

  pvtdataStore:
    # the maximum db batch size for converting
    # the ineligible missing data entries to eligible missing data entries
    collElgProcMaxDbBatchSize: 5000
    # the minimum duration (in milliseconds) between writing
    # two consecutive db batches for converting the ineligible missing data entries to eligible missing data entries
    collElgProcDbBatchesInterval: 1000
    # The missing data entries are classified into two categories:
    # (1) prioritized
    # (2) deprioritized
    # Initially, all missing data are in the prioritized list. When the
    # reconciler is unable to fetch the missing data from other peers,
    # the unreconciled missing data would be moved to the deprioritized list.
    # The reconciler would retry deprioritized missing data after every
    # deprioritizedDataReconcilerInterval (unit: minutes). Note that the
    # interval needs to be greater than the reconcileSleepInterval
    deprioritizedDataReconcilerInterval: 60m
    # The frequency to purge private data (in number of blocks).
    # Private data is purged from the peer's private data store based on
    # the collection property blockToLive or an explicit chaincode call to PurgePrivateData().
    purgeInterval: 100
    # Whether to log private data keys purged from private data store (INFO level) when explicitly purged via chaincode
    purgedKeyAuditLogging: true

  snapshots:
    # Path on the file system where peer will store ledger snapshots
    # The path must be an absolute path.
    rootDir: /var/hyperledger/production/snapshots

###############################################################################
#
#    Operations section
#
###############################################################################
operations:
    # host and port for the operations server
    listenAddress: 127.0.0.1:9443

    # TLS configuration for the operations endpoint
    tls:
        # TLS enabled
        enabled: false

        # path to PEM encoded server certificate for the operations server
        # The paths in this section may be relative to FABRIC_CFG_PATH or an absolute path.
        cert:
            file:

        # path to PEM encoded server key for the operations server
        key:
            file:

        # most operations service endpoints require client authentication when TLS
        # is enabled. clientAuthRequired requires client certificate authentication
        # at the TLS layer to access all resources.
        clientAuthRequired: false

        # paths to PEM encoded ca certificates to trust for client authentication
        clientRootCAs:
            files: []

###############################################################################
#
#    Metrics section
#
###############################################################################
metrics:
    # metrics provider is one of statsd, prometheus, or disabled
    provider: disabled

    # statsd configuration
    statsd:
        # network type: tcp or udp
        network: udp

        # statsd server address
        address: 127.0.0.1:8125

        # the interval at which locally cached counters and gauges are pushed
        # to statsd; timings are pushed immediately
        writeInterval: 10s

        # prefix is prepended to all emitted statsd metrics
        prefix: