Consul server setup #2

Merged
kazu634 merged 1 commits from consul-server-setup into main 2024-02-11 09:56:47 +00:00
14 changed files with 296 additions and 82 deletions
Showing only changes of commit cfdec27f89 - Show all commits

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@ -2,7 +2,7 @@
execute 'apt update'
# Install the necessary packages:
%w[build-essential zsh vim-nox debian-keyring screen curl dstat direnv].each do |pkg|
%w[build-essential zsh vim-nox debian-keyring screen curl dstat direnv jq avahi-daemon].each do |pkg|
package pkg
end
@ -63,9 +63,6 @@ end
end
end
# mDNS
package 'avahi-daemon'
execute 'ufw allow 5353/udp' do
user 'root'

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@ -23,6 +23,7 @@ node.reverse_merge!({
'ipaddr' => ipaddr,
'dns' => dns,
'encrypt' => 's2T3XUTb9MjHYOw8I820O5YkN2G6eJrjLjJRTnEAKoM=',
'token' => '39f8fc02-7ec7-ec7b-7bc6-e6e16bb8deca'
'token' => '39f8fc02-7ec7-ec7b-7bc6-e6e16bb8deca',
'server_token' => '655967fb-8a72-5ba9-b5ae-58c587c853b2'
}
})

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@ -0,0 +1,24 @@
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@ -0,0 +1,6 @@
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@ -0,0 +1,7 @@
#!/bin/bash
export TOKEN_DIR=/etc/consul.d/tokens
consul acl bootstrap --format json | tee -a "${TOKEN_DIR}/token-bootstrap.json"
exit $?

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@ -0,0 +1,29 @@
#!/bin/bash
export POLICIES=`ls -1 /etc/consul.d/policies/*.hcl`
export TOKEN_DIR=/etc/consul.d/tokens
export ANONYMOUS_TOKEN="00000000-0000-0000-0000-000000000001"
export CONSUL_HTTP_TOKEN=`cat ${TOKEN_DIR}/token-bootstrap.json | jq -r ".SecretID"`
for conf in ${POLICIES}; do
policy=`basename ${conf} .hcl`
consul acl policy read -name "${policy}" &> /dev/null
if [ $? -ne 0 ]; then
consul acl policy create -name "${policy}" -rules @${conf}
fi
# anonymousは特別扱い
if [ ${policy} = "anonymous" ]; then
continue
fi
consul acl token list | grep ${policy} &> /dev/null
if [ $? -ne 0 ]; then
consul acl token create -description "${policy}" -policy-name ${policy} | tee ${TOKEN_DIR}/${policy}
fi
done
consul acl token update -id ${ANONYMOUS_TOKEN} -policy-name "anonymous" -description "Anonymous Token"
exit 0

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@ -0,0 +1,34 @@
acl = "read"
agent_prefix "" {
policy = "read"
}
event_prefix "" {
policy = "read"
}
key_prefix "" {
policy = "read"
}
keyring = "read"
node_prefix "" {
policy = "read"
}
operator = "read"
query_prefix "" {
policy = "read"
}
service_prefix "" {
policy = "read"
intentions = "read"
}
session_prefix "" {
policy = "read"
}

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@ -0,0 +1,15 @@
agent_prefix "" {
policy = "write"
}
node_prefix "" {
policy = "write"
}
service_prefix "" {
policy = "write"
}
session_prefix "" {
policy = "read"
}

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@ -0,0 +1,13 @@
agent_prefix "" {
policy = "read"
}
node_prefix "" {
policy = "read"
}
service_prefix "" {
policy = "write"
}
acl = "write"

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@ -0,0 +1,3 @@
service_prefix "" {
policy = "write"
}

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@ -9,17 +9,44 @@ end
# deploy certificates
if node['consul']['manager']
else
encrypted_remote_file '/etc/consul.d/certs/consul-agent-ca.pem' do
encrypted_remote_file '/etc/consul.d/certs/consul-agent-ca-key.pem' do
owner 'consul'
group 'consul'
mode '0444'
source 'files/etc/consul.d/certs/consul-agent-ca.pem'
source 'files/etc/consul.d/certs/consul-agent-ca-key.pem'
password ENV['ITAMAE_PASSWORD']
end
encrypted_remote_file '/etc/consul.d/certs/dc1-server-consul-1-key.pem' do
owner 'consul'
group 'consul'
mode '0444'
source 'files/etc/consul.d/certs/dc1-server-consul-1-key.pem'
password ENV['ITAMAE_PASSWORD']
end
encrypted_remote_file '/etc/consul.d/certs/dc1-server-consul-1.pem' do
owner 'consul'
group 'consul'
mode '0444'
source 'files/etc/consul.d/certs/dc1-server-consul-1.pem'
password ENV['ITAMAE_PASSWORD']
end
end
encrypted_remote_file '/etc/consul.d/certs/consul-agent-ca.pem' do
owner 'consul'
group 'consul'
mode '0444'
source 'files/etc/consul.d/certs/consul-agent-ca.pem'
password ENV['ITAMAE_PASSWORD']
end
# Deploy configs
if node['consul']['manager']
SRC = 'consul-server.hcl.erb'
else
@ -43,6 +70,34 @@ template '/etc/consul.d/consul.hcl' do
notifies :restart, 'service[consul]'
end
# Deploy server specific config
template '/etc/consul.d/server.hcl' do
owner 'consul'
group 'consul'
mode '644'
variables(server_token: node['consul']['server_token'])
notifies :restart, 'service[consul]'
end
%w( 01-bootstrap.sh 02-policy.sh ).each do |sh|
remote_file("/etc/consul.d/howto/#{sh}") {
owner 'root'
group 'root'
mode '0755'
}
end
%w( anonymous nodes nomad-policy vault-service-registration ).each do |policy|
remote_file("/etc/consul.d/policies/#{policy}.hcl") {
owner 'root'
group 'root'
mode '0644'
}
end
# misc
directory '/var/log/consul/' do
owner 'consul'
group 'consul'

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@ -1,85 +1,43 @@
# Full configuration options can be found at https://www.consul.io/docs/agent/options.html
datacenter = "dc1"
data_dir = "/opt/consul"
# 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 = "aws"
encrypt = "<%= @encrypt %>"
verify_incoming = true
verify_outgoing = true
verify_server_hostname = true
# 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 = 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 = "LPKrNBQZnJIc8tJpViI4ug=="
# 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 = <%= @manager_hosts %>
ca_file = "/etc/consul.d/certs/consul-agent-ca.pem"
bind_addr = "<%= @ipaddr %>"
client_addr = "0.0.0.0"
advertise_addr = "<%= @ipaddr %>"
performance {
raft_multiplier = 1
}
disable_remote_exec = false
disable_update_check = false
enable_local_script_checks = true
log_file = "/var/log/consul/"
log_file = "/var/log/consul/"
log_rotate_max_files = -1
log_level = "INFO"
log_json = false
log_rotate_bytes = 1000000
log_level = "INFO"
log_json = false
log_rotate_bytes = 1000000
enable_central_service_config = true
ports {
grpc_tls = 8502
}
connect {
enabled = true
}
telemetry {
prometheus_retention_time = "24h"
disable_hostname = true
}
retry_join = [<%= @manager_hosts %>]
rejoin_after_leave = true

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@ -0,0 +1,50 @@
server = true
bootstrap_expect = 3
ca_file = "/etc/consul.d/certs/consul-agent-ca.pem"
cert_file = "/etc/consul.d/certs/dc1-server-consul-1.pem"
key_file = "/etc/consul.d/certs/dc1-server-consul-1-key.pem"
acl {
enabled = true
default_policy = "deny"
enable_token_persistence = true
tokens {
master = "<%= @manager_hosts %>"
agent = "<%= @manager_hosts %>"
default = "<%= @manager_hosts %>"
}
}
ui_config {
enabled = true
metrics_provider = "prometheus"
metrics_proxy {
base_url = "http://192.168.10.101:9090"
}
}
config_entries {
bootstrap = [
{
kind = "proxy-defaults"
name = "global"
config {
envoy_prometheus_bind_addr = "0.0.0.0:9102"
}
}
]
}
auto_config {
authorization {
enabled = true
static {
oidc_discovery_url = "http://vault.homelab:8200/v1/identity/oidc"
bound_issuer = "http://vault.homelab:8200/v1/identity/oidc"
bound_audiences = [ "dc1" ]
}
}
}