Notes

[tukhtaev@ms-node5 ~]$ cat /etc/consul.d/consul.hcl
# Full configuration options can be found at https://www.consul.io/docs/agent/options.html
domain = "consul"
bind_addr = "10.100.46.21"
# datacenter
# This flag controls the datacenter in which the agent is running. If not provided,
# it defaults to "dc1". Consul has first-class support for multiple datacenters, but
# it relies on proper configuration. Nodes in the same datacenter should be on a
# single LAN.
datacenter = "rcdev"
primary_datacenter = "rcdev"

# data_dir
# This flag provides a data directory for the agent to store state. This is required
# for all agents. The directory should be durable across reboots. This is especially
# critical for agents that are running in server mode as they must be able to persist
# cluster state. Additionally, the directory must support the use of filesystem
# locking, meaning some types of mounted folders (e.g. VirtualBox shared folders) may
# not be suitable.
data_dir = "/opt/consul"

# client_addr
# The address to which Consul will bind client interfaces, including the HTTP and DNS
# servers. By default, this is "127.0.0.1", allowing only loopback connections. In
# Consul 1.0 and later this can be set to a space-separated list of addresses to bind
# to, or a go-sockaddr template that can potentially resolve to multiple addresses.
client_addr = "0.0.0.0"

# ui
# Enables the built-in web UI server and the required HTTP routes. This eliminates
# the need to maintain the Consul web UI files separately from the binary.
ui_config {
enabled = true
}

# server
# This flag is used to control if an agent is in server or client mode. When provided,
# an agent will act as a Consul server. Each Consul cluster must have at least one
# server and ideally no more than 5 per datacenter. All servers participate in the Raft
# consensus algorithm to ensure that transactions occur in a consistent, linearizable
# manner. Transactions modify cluster state, which is maintained on all server nodes to
# ensure availability in the case of node failure. Server nodes also participate in a
# WAN gossip pool with server nodes in other datacenters. Servers act as gateways to
# other datacenters and forward traffic as appropriate.
server = true

# bootstrap_expect
# This flag provides the number of expected servers in the datacenter. Either this value
# should not be provided or the value must agree with other servers in the cluster. When
# provided, Consul waits until the specified number of servers are available and then
# bootstraps the cluster. This allows an initial leader to be elected automatically.
# This cannot be used in conjunction with the legacy -bootstrap flag. This flag requires
# -server mode.
bootstrap_expect = 3

# encrypt
# Specifies the secret key to use for encryption of Consul network traffic. This key must
# be 32-bytes that are Base64-encoded. The easiest way to create an encryption key is to
# use consul keygen. All nodes within a cluster must share the same encryption key to
# communicate. The provided key is automatically persisted to the data directory and loaded
# automatically whenever the agent is restarted. This means that to encrypt Consul's gossip
# protocol, this option only needs to be provided once on each agent's initial startup
# sequence. If it is provided after Consul has been initialized with an encryption key,
# then the provided key is ignored and a warning will be displayed.
encrypt = "sNpfyxZN95XYae5goQdOGuyyQoDCxsH3sEjPTFNqYOE="

# retry_join
# Similar to -join but allows retrying a join until it is successful. Once it joins
# successfully to a member in a list of members it will never attempt to join again.
# Agents will then solely maintain their membership via gossip. This is useful for
# cases where you know the address will eventually be available. This option can be
# specified multiple times to specify multiple agents to join. The value can contain
# IPv4, IPv6, or DNS addresses. In Consul 1.1.0 and later this can be set to a go-sockaddr
# template. If Consul is running on the non-default Serf LAN port, this must be specified
# as well. IPv6 must use the "bracketed" syntax. If multiple values are given, they are
# tried and retried in the order listed until the first succeeds. Here are some examples:
#retry_join = ["consul.domain.internal"]
#retry_join = ["10.0.4.67"]
#retry_join = ["[::1]:8301"]
#retry_join = ["consul.domain.internal", "10.0.4.67"]
retry_join = ["ms-node1", "ms-node2", "ms-node3"]
# Cloud Auto-join examples:
# More details - https://www.consul.io/docs/agent/cloud-auto-join
# retry_join = ["rc.dev", "ms-node3.rc.dev"]
#retry_join = ["provider=aws tag_key=... tag_value=..."]
#retry_join = ["provider=azure tag_name=... tag_value=... tenant_id=... client_id=... subscription_id=... secret_access_key=..."]
#retry_join = ["provider=gce project_name=... tag_value=..."]

log_file = "/var/log/consul/"
log_level = "debug"
enable_syslog = false

# ACL Section
acl = {
enabled = false
default_policy = "deny"
enable_token_persistence = true
# tokens {
# master = "7ac41fce-4b58-4825-d8a5-6d9324c66b8f",
# agent = "6e640b19-d465-a263-3ea5-1a7d57005745",
# default = "7040123c-b719-e034-9e8f-87c40f67adf4"
# }

}