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# Fullconfiguration options can be found at https://www.consul.io/docs/agent/options.html
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# datacenter
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# This flag controls the datacenter in which the agent is running. If not provided,
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# it defaults to "dc1". Consul has first-class support for multiple datacenters, but
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# it relies on proper configuration. Nodes in the same datacenter should be on a
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# single LAN.
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#datacenter = "my-dc-1"
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# data_dir
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# This flag provides a data directory for the agent to store state. This is required
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# for all agents. The directory should be durable across reboots. This is especially
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# critical for agents that are running in server mode as they must be able to persist
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# cluster state. Additionally, the directory must support the use of filesystem
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# locking, meaning some types of mounted folders (e.g. VirtualBox shared folders) may
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# not be suitable.
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data_dir = "/opt/consul"
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# client_addr
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# The address to which Consul will bind client interfaces, including the HTTP and DNS
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# servers. By default, this is "127.0.0.1", allowing only loopback connections. In
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# Consul 1.0 and later this can be set to a space-separated list of addresses to bind
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# to, or a go-sockaddr template that can potentially resolve to multiple addresses.
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#client_addr = "0.0.0.0"
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# ui
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# Enables the built-in web UI server and the required HTTP routes. This eliminates
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# the need to maintain the Consul web UI files separately from the binary.
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# Version 1.10 deprecated ui=true in favor of ui_config.enabled=true
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#ui_config{
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# enabled = true
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#}
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# server
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# This flag is used to control if an agent is in server or client mode. When provided,
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# an agent will act as a Consul server. Each Consul cluster must have at least one
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# server and ideally no more than 5 per datacenter. All servers participate in the Raft
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# consensus algorithm to ensure that transactions occur in a consistent, linearizable
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# manner. Transactions modify cluster state, which is maintained on all server nodes to
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# ensure availability in the case of node failure. Server nodes also participate in a
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# WAN gossip pool with server nodes in other datacenters. Servers act as gateways to
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# other datacenters and forward traffic as appropriate.
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#server = true
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# Bind addr
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# You may use IPv4 or IPv6 but if you have multiple interfaces you must be explicit.
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#bind_addr = "[::]" # Listen on all IPv6
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#bind_addr = "0.0.0.0" # Listen on all IPv4
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#
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# Advertise addr - if you want to point clients to a different address than bind or LB.
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#advertise_addr = "127.0.0.1"
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# Enterprise License
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# As of 1.10, Enterprise requires a license_path and does not have a short trial.
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#license_path = "/etc/consul.d/consul.hclic"
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# bootstrap_expect
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# This flag provides the number of expected servers in the datacenter. Either this value
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# should not be provided or the value must agree with other servers in the cluster. When
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# provided, Consul waits until the specified number of servers are available and then
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# bootstraps the cluster. This allows an initial leader to be elected automatically.
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# This cannot be used in conjunction with the legacy -bootstrap flag. This flag requires
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# -server mode.
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#bootstrap_expect=3
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# encrypt
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# Specifies the secret key to use for encryption of Consul network traffic. This key must
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# be 32-bytes that are Base64-encoded. The easiest way to create an encryption key is to
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# use consul keygen. All nodes within a cluster must share the same encryption key to
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# communicate. The provided key is automatically persisted to the data directory and loaded
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# automatically whenever the agent is restarted. This means that to encrypt Consul's gossip
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# protocol, this option only needs to be provided once on each agent's initial startup
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# sequence. If it is provided after Consul has been initialized with an encryption key,
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# then the provided key is ignored and a warning will be displayed.
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#encrypt = "..."
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# retry_join
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# Similar to -join but allows retrying a join until it is successful. Once it joins
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# successfully to a member in a list of members it will never attempt to join again.
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# Agents will then solely maintain their membership via gossip. This is useful for
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# cases where you know the address will eventually be available. This option can be
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# specified multiple times to specify multiple agents to join. The value can contain
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# IPv4, IPv6, or DNS addresses. In Consul 1.1.0 and later this can be set to a go-sockaddr
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# template. If Consul is running on the non-default Serf LAN port, this must be specified
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# as well. IPv6 must use the "bracketed" syntax. If multiple values are given, they are
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# tried and retried in the order listed until the first succeeds. Here are some examples:
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#retry_join = ["consul.domain.internal"]
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#retry_join = ["10.0.4.67"]
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#retry_join = ["[::1]:8301"]
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#retry_join = ["consul.domain.internal", "10.0.4.67"]
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# Cloud Auto-join examples:
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# More details - https://www.consul.io/docs/agent/cloud-auto-join
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#retry_join = ["provider=aws tag_key=... tag_value=..."]
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#retry_join = ["provider=azure tag_name=... tag_value=... tenant_id=... client_id=... subscription_id=... secret_access_key=..."]
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#retry_join = ["provider=gce project_name=... tag_value=..."]
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Scott Macfarlane