consul: add postinstall step

src/configs/consul-client.hcl

@@ -0,0 +1,17 @@
+bind_addr = "{{ GetInterfaceIP \"wgoverlay\" }}"
+
+bootstrap = false
+server = false
+
+domain = "mooncarrot.space."
+
+client_addr = "127.0.0.1 {{ GetInterfaceIP \"docker0\" }}"
+
+data_dir = "/srv/consul"
+log_level = "INFO"
+
+retry_join = [
+	"wopplefox",
+	"spatterling",
+	"sycadil"
+]

src/configs/consul-server.hcl

@@ -0,0 +1,24 @@
+bind_addr = "{{ GetInterfaceIP \"wgoverlay\" }}"
+
+# When we have this many servers in the cluster, automatically run the first leadership election
+# Remember that the Hashicorp stack uses the Raft consensus algorithm.
+bootstrap_expect = 3
+server = true
+ui_config {
+	enabled = true
+}
+
+client_addr = "127.0.0.1 {{ GetInterfaceIP \"docker0\" }} {{ GetInterfaceIP \"wgoverlay\" }}"
+
+data_dir = "/srv/consul"
+log_level = "INFO"
+
+domain = "mooncarrot.space."
+
+
+retry_join = [
+	// "172.16.230.100"
+	"wopplefox",
+	"spatterling",
+	"sycadil"
+]

src/steps-postinstall/75-consul.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+
+task_begin "Installing Consul configuration";
+# /etc/consul is created by the apt postinstall script
+
+subtask_begin "Copying configuration files";
+cp "configs/consul-client.hcl" "/etc/consul/client.hcl";
+cp "configs/consul-server.hcl" "/etc/consul/server.hcl";
+subtask_end "$?";
+
+subtask_begin "Starting Consul and enabling on boot";
+systemctl consul;
+subtask_end "$?";
+
+
+task_end "$?";