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## etcd(1) daemon options
## See "/usr/share/doc/etcd-server/op-guide/configuration.md.gz"
### Member flags
##### --name
## Human-readable name for this member.
## This value is referenced as this node's own entries listed in the
## `--initial-cluster` flag (e.g., `default=http://localhost:2380`). This
## needs to match the key used in the flag if using static bootstrapping. When
## using discovery, each member must have a unique name. `Hostname` or
## `machine-id` can be a good choice.
## default: "default"
# ETCD_NAME="default"
##### --data-dir
## Path to the data directory.
## default: "${name}.etcd"
# ETCD_DATA_DIR="/var/lib/etcd/default"
##### --wal-dir
## Path to the dedicated wal directory. If this flag is set, etcd will write
## the WAL files to the walDir rather than the dataDir. This allows a
## dedicated disk to be used, and helps avoid io competition between logging
## and other IO operations.
## default: ""
# ETCD_WAL_DIR
##### --snapshot-count
## Number of committed transactions to trigger a snapshot to disk.
## default: "100000"
# ETCD_SNAPSHOT_COUNT="100000"
##### --heartbeat-interval
## Time (in milliseconds) of a heartbeat interval.
## default: "100"
# ETCD_HEARTBEAT_INTERVAL="100"
##### --election-timeout
## Time (in milliseconds) for an election to timeout. See
## /usr/share/doc/etcd-server/tuning.md.gz for details.
## default: "1000"
# ETCD_ELECTION_TIMEOUT="1000"
##### --listen-peer-urls
## List of URLs to listen on for peer traffic. This flag tells the etcd to
## accept incoming requests from its peers on the specified scheme://IP:port
## combinations. Scheme can be either http or https.If 0.0.0.0 is specified as
## the IP, etcd listens to the given port on all interfaces. If an IP address is
## given as well as a port, etcd will listen on the given port and interface.
## Multiple URLs may be used to specify a number of addresses and ports to listen
## on. The etcd will respond to requests from any of the listed addresses and
## ports.
## default: "http://localhost:2380"
## example: "http://10.0.0.1:2380"
## invalid example: "http://example.com:2380" (domain name is invalid for binding)
# ETCD_LISTEN_PEER_URLS="http://localhost:2380"
##### --listen-client-urls
## List of URLs to listen on for client traffic. This flag tells the etcd to
## accept incoming requests from the clients on the specified scheme://IP:port
## combinations. Scheme can be either http or https. If 0.0.0.0 is specified as
## the IP, etcd listens to the given port on all interfaces. If an IP address is
## given as well as a port, etcd will listen on the given port and interface.
## Multiple URLs may be used to specify a number of addresses and ports to listen
## on. The etcd will respond to requests from any of the listed addresses and
## ports.
## default: "http://localhost:2379"
## example: "http://10.0.0.1:2379"
## invalid example: "http://example.com:2379" (domain name is invalid for binding)
# ETCD_LISTEN_CLIENT_URLS="http://localhost:2379"
##### --max-snapshots
## Maximum number of snapshot files to retain (0 is unlimited)
## The default for users on Windows is unlimited, and manual purging down to 5
## (or some preference for safety) is recommended.
## default: 5
# ETCD_MAX_SNAPSHOTS="5"
##### --max-wals
## Maximum number of wal files to retain (0 is unlimited)
## The default for users on Windows is unlimited, and manual purging down to 5
## (or some preference for safety) is recommended.
## default: 5
# ETCD_MAX_WALS="5"
##### --cors
## Comma-separated white list of origins for CORS (cross-origin resource
## sharing).
## default: none
# ETCD_CORS
#### --quota-backend-bytes
## Raise alarms when backend size exceeds the given quota (0 defaults to low
## space quota).
## default: 0
# ETCD_QUOTA_BACKEND_BYTES="0"
#### --backend-batch-limit
## BackendBatchLimit is the maximum operations before commit the backend
## transaction.
## default: 0
# ETCD_BACKEND_BATCH_LIMIT="0"
#### --backend-batch-interval
## BackendBatchInterval is the maximum time before commit the backend
## transaction.
## default: 0
# ETCD_BACKEND_BATCH_INTERVAL="0"
#### --max-txn-ops
## Maximum number of operations permitted in a transaction.
## default: 128
# ETCD_MAX_TXN_OPS="128"
#### --max-request-bytes
## Maximum client request size in bytes the server will accept.
## default: 1572864
# ETCD_MAX_REQUEST_BYTES="1572864"
#### --grpc-keepalive-min-time
## Minimum duration interval that a client should wait before pinging server.
## default: 5s
# ETCD_GRPC_KEEPALIVE_MIN_TIME="5"
#### --grpc-keepalive-interval
## Frequency duration of server-to-client ping to check if a connection is
## alive (0 to disable).
## default: 2h
# ETCD_GRPC_KEEPALIVE_INTERVAL="2h"
#### --grpc-keepalive-timeout
## Additional duration of wait before closing a non-responsive connection
## (0 to disable).
## default: 20s
# ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"
### Clustering flags
# `--initial` prefix flags are used in bootstrapping (static bootstrap,
# discovery-service bootstrap or runtime reconfiguration) a new member, and
# ignored when restarting an existing member.
# `--discovery` prefix flags need to be set when using discovery service.
##### --initial-advertise-peer-urls
## List of this member's peer URLs to advertise to the rest of the cluster.
## These addresses are used for communicating etcd data around the cluster. At
## least one must be routable to all cluster members. These URLs can contain
## domain names.
## default: "http://localhost:2380"
## example: "http://example.com:2380, http://10.0.0.1:2380"
# ETCD_INITIAL_ADVERTISE_PEER_URLS="http://localhost:2380"
##### --initial-cluster
## Initial cluster configuration for bootstrapping.
## The key is the value of the `--name` flag for each node provided. The
## default uses `default` for the key because this is the default for the
## `--name` flag.
## default: "default=http://localhost:2380"
# ETCD_INITIAL_CLUSTER="default=http://localhost:2380"
##### --initial-cluster-state
## Initial cluster state ("new" or "existing"). Set to `new` for all members
## present during initial static or DNS bootstrapping. If this option is set to
## `existing`, etcd will attempt to join the existing cluster. If the wrong value
## is set, etcd will attempt to start but fail safely.
## default: "new"
# ETCD_INITIAL_CLUSTER_STATE="new"
##### --initial-cluster-token
## Initial cluster token for the etcd cluster during bootstrap.
## default: "etcd-cluster"
# ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
##### --advertise-client-urls
## List of this member's client URLs to advertise to the rest of the cluster.
## These URLs can contain domain names.
## Be careful if advertising URLs such as http://localhost:2379 from a cluster
## member and are using the proxy feature of etcd. This will cause loops, because
## the proxy will be forwarding requests to itself until its resources (memory,
## file descriptors) are eventually depleted.
## default: "http://localhost:2379"
## example: "http://example.com:2379, http://10.0.0.1:2379"
# ETCD_ADVERTISE_CLIENT_URLS="http://localhost:2379"
##### --discovery
## Discovery URL used to bootstrap the cluster.
## default: none
# ETCD_DISCOVERY
##### --discovery-srv
## DNS srv domain used to bootstrap the cluster.
## default: none
# ETCD_DISCOVERY_SRV
##### --discovery-fallback
## Expected behavior ("exit" or "proxy") when discovery services fails. "proxy"
## supports v2 API only.
## default: "proxy"
# ETCD_DISCOVERY_FALLBACK="proxy"
##### --discovery-proxy
## HTTP proxy to use for traffic to discovery service.
## default: none
# ETCD_DISCOVERY_PROXY
##### --strict-reconfig-check
## Reject reconfiguration requests that would cause quorum loss.
## default: false
# ETCD_STRICT_RECONFIG_CHECK
##### --auto-compaction-retention
## Auto compaction retention for mvcc key value store in hour. 0 means disable
## auto compaction.
## default: 0
# ETCD_AUTO_COMPACTION_RETENTION="0"
##### --enable-v2
## Accept etcd V2 client requests
## default: true
# ETCD_ENABLE_V2="true"
### Proxy flags
# `--proxy` prefix flags configures etcd to run in proxy mode. "proxy" supports
# v2 API only.
##### --proxy
## Proxy mode setting ("off", "readonly" or "on").
## default: "off"
# ETCD_PROXY="off"
##### --proxy-failure-wait
## Time (in milliseconds) an endpoint will be held in a failed state before
## being reconsidered for proxied requests.
## default: 5000
# ETCD_PROXY_FAILURE_WAIT="5000"
##### --proxy-refresh-interval
## Time (in milliseconds) of the endpoints refresh interval.
## default: 30000
# ETCD_PROXY_REFRESH_INTERVAL="30000"
##### --proxy-dial-timeout
## Time (in milliseconds) for a dial to timeout or 0 to disable the timeout
## default: 1000
# ETCD_PROXY_DIAL_TIMEOUT="1000"
##### --proxy-write-timeout
## Time (in milliseconds) for a write to timeout or 0 to disable the timeout.
## default: 5000
# ETCD_PROXY_WRITE_TIMEOUT="5000"
##### --proxy-read-timeout
## Time (in milliseconds) for a read to timeout or 0 to disable the timeout.
## Don't change this value if using watches because use long polling requests.
## default: 0
# ETCD_PROXY_READ_TIMEOUT="0"
### Security flags
# The security flags help to build a secure etcd cluster.
##### --ca-file (**DEPRECATED**)
## Path to the client server TLS CA file. `--ca-file ca.crt` could be replaced
## by `--trusted-ca-file ca.crt --client-cert-auth` and etcd will perform the
## same.
## default: none
# ETCD_CA_FILE
##### --cert-file
## Path to the client server TLS cert file.
## default: none
# ETCD_CERT_FILE
##### --key-file
## Path to the client server TLS key file.
## default: none
# ETCD_KEY_FILE
##### --client-cert-auth
## Enable client cert authentication.
## CN authentication is not supported by gRPC-gateway.
## default: false
# ETCD_CLIENT_CERT_AUTH
#### --client-crl-file
## Path to the client certificate revocation list file.
## default: ""
# ETCD_CLIENT_CRL_FILE
##### --trusted-ca-file
## Path to the client server TLS trusted CA key file.
## default: none
# ETCD_TRUSTED_CA_FILE
##### --auto-tls
## Client TLS using generated certificates
## default: false
# ETCD_AUTO_TLS
##### --peer-ca-file (**DEPRECATED**)
## Path to the peer server TLS CA file. `--peer-ca-file ca.crt` could be
## replaced by `--peer-trusted-ca-file ca.crt --peer-client-cert-auth` and etcd
## will perform the same.
## default: none
# ETCD_PEER_CA_FILE
##### --peer-cert-file
## Path to the peer server TLS cert file.
## default: none
# ETCD_PEER_CERT_FILE
##### --peer-key-file
## Path to the peer server TLS key file.
## default: none
# ETCD_PEER_KEY_FILE
##### --peer-client-cert-auth
## Enable peer client cert authentication.
## default: false
# ETCD_PEER_CLIENT_CERT_AUTH
#### --peer-crl-file
## Path to the peer certificate revocation list file.
## default: ""
# ETCD_PEER_CRL_FILE
##### --peer-trusted-ca-file
## Path to the peer server TLS trusted CA file.
## default: none
# ETCD_PEER_TRUSTED_CA_FILE
##### --peer-auto-tls
## Peer TLS using generated certificates
## default: false
# ETCD_PEER_AUTO_TLS
#### --peer-cert-allowed-cn
## Allowed CommonName for inter peer authentication.
## default: none
# ETCD_PEER_CERT_ALLOWED_CN
#### --cipher-suites
## Comma-separated list of supported TLS cipher suites between server/client and
## peers.
## default: ""
# ETCD_CIPHER_SUITES
#### --experimental-peer-skip-client-san-verification
## Skip verification of SAN field in client certificate for peer connections.
## default: false
#+ ETCD_EXPERIMENTAL_PEER_SKIP_CLIENT_SAN_VERIFICATION
### Logging flags
#### --log-outputs
## Specify 'stdout' or 'stderr' to skip journald logging even when running
## under systemd, or list of comma separated output targets.
## default: default
# ETCD_LOG_OUTPUTS
##### --debug
## Drop the default log level to DEBUG for all subpackages.
## default: false (INFO for all packages)
# ETCD_DEBUG
##### --log-package-levels
## Set individual etcd subpackages to specific log levels. An example being
## `etcdserver=WARNING,security=DEBUG`
## default: none (INFO for all packages)
# ETCD_LOG_PACKAGE_LEVELS
### Unsafe flags
# Please be CAUTIOUS when using unsafe flags because it will break the guarantees given by the consensus protocol.
# For example, it may panic if other members in the cluster are still alive.
# Follow the instructions when using these flags.
##### --force-new-cluster
## Force to create a new one-member cluster. It commits configuration changes
## forcing to remove all existing members in the cluster and add itself. It needs
## to be set to restore a backup.
## default: false
# ETCD_FORCE_NEW_CLUSTER
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