1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
---
network_mgmt_zone: "{{ network_zones.mgmt }}"
network_internal_zone_names:
- emc
openwrt_network_external:
- name: interface 'citycom'
options:
device: 'eth1'
proto: static
ipaddr: "{{ network_zones.cc_hmtsaal.prefix | ansible.utils.ipaddr(network_zones.cc_hmtsaal.offsets[inventory_hostname]) | ansible.utils.ipaddr('address') }}"
netmask: "{{ network_zones.cc_hmtsaal.prefix | ansible.utils.ipaddr('netmask') }}"
gateway: "{{ network_zones.cc_hmtsaal.gateway }}"
dns: "{{ network_zones.cc_hmtsaal.dns }}"
accept_ra: 0
openwrt_network_internal: "{{ openwrt_network_internal_yaml | from_yaml }}"
openwrt_network_internal_yaml: |
{% for zone_name in network_internal_zone_names %}
- name: "interface '{{ zone_name }}'"
options:
device: "eth0.{{ network_zones[zone_name].vlan }}"
proto: static
ipaddr: "{{ network_zones[zone_name].gateway }}"
netmask: "{{ network_zones[zone_name].prefix | ansible.utils.ipaddr('netmask') }}"
accept_ra: 0
{% endfor %}
openwrt_network_base:
- name: globals 'globals'
options:
ula_prefix: "fc{{ '%02x:%04x:%04x' | format((255 | random(seed=inventory_hostname + '0')), (65535 | random(seed=inventory_hostname + '1')), (65535 | random(seed=inventory_hostname + '2'))) }}::/48"
- name: interface 'loopback'
options:
device: lo
proto: static
ipaddr: 127.0.0.1
netmask: 255.0.0.0
- name: interface 'mgmt'
options:
device: "eth0.{{ network_mgmt_zone.vlan }}"
proto: static
ipaddr: "{{ network_mgmt_zone.prefix | ansible.utils.ipaddr(network_mgmt_zone.offsets[inventory_hostname]) | ansible.utils.ipaddr('address') }}"
netmask: "{{ network_mgmt_zone.prefix | ansible.utils.ipaddr('netmask') }}"
accept_ra: 0
openwrt_dhcp_external:
- name: dhcp 'citycom'
options:
interface: 'citycom'
ignore: '1'
openwrt_dhcp_internal: "{{ openwrt_dhcp_internal_yaml | from_yaml }}"
openwrt_dhcp_internal_yaml: |
{% for zone_name in network_internal_zone_names %}
- name: "dhcp '{{ zone_name }}'"
options:
interface: "{{ zone_name }}"
{% if 'dhcp' in network_zones[zone_name] %}
start: {{ network_zones[zone_name].dhcp.start }}
limit: {{ network_zones[zone_name].dhcp.limit }}
leasetime: {{ network_zones[zone_name].dhcp.leasetime | default('12h') }}
dhcpv6: 'disabled'
ra: 'disabled'
{% else %}
ignore: '1'
{% endif %}
{% endfor %}
openwrt_dhcp_base:
- name: dnsmasq
options:
domainneeded: '1'
boguspriv: '0'
filterwin2k: '0'
localise_queries: '1'
rebind_protection: '0'
rebind_localhost: '1'
local: '/lan/'
domain: 'lan'
expandhosts: '1'
nonegcache: '0'
authoritative: '1'
readethers: '1'
leasefile: '/tmp/dhcp.leases'
resolvfile: '/tmp/resolv.conf.auto'
localservice: '1'
server: "{{ network_zones.cc_hmtsaal.dns }}"
- name: odhcpd 'odhcpd'
options:
maindhcp: '0'
leasefile: '/tmp/hosts/odhcpd'
leasetrigger: '/usr/sbin/odhcpd-update'
- name: dhcp 'mgmt'
options:
interface: 'mgmt'
ignore: '1'
openwrt_arch: x86
openwrt_target: geode
openwrt_profile: generic
openwrt_output_image_suffixes:
- "{{ openwrt_profile }}-ext4-combined.img.gz"
openwrt_packages_remove:
- ppp
- ppp-mod-pppoe
- kmod-ppp
- kmod-pppoe
- kmod-pppox
- firewall
- firewall4
- odhcpd-ipv6only
openwrt_packages_add:
- nftables
- kmod-nft-nat
- haveged
- htop
- ip
- less
- nano
- tcpdump-mini
- iperf
- iperf3
- mtr
- iptraf-ng
- prometheus-node-exporter-lua
- prometheus-node-exporter-lua-netstat
- prometheus-node-exporter-lua-openwrt
openwrt_mixin:
/etc/dropbear/authorized_keys:
content: "{{ ssh_keys_root | join('\n') }}\n"
/etc/htoprc:
file: "{{ global_files_dir }}/common/htoprc"
/etc/rc.d/S21nftables:
link: "../init.d/nftables"
/etc/rc.d/K89nftables:
link: "../init.d/nftables"
/etc/init.d/nftables:
mode: "0755"
content: |
#!/bin/sh /etc/rc.common
START=21
STOP=89
start() {
nft -f /etc/nftables.conf
}
stop() {
nft flush ruleset
}
/etc/nftables.conf:
content: |
flush ruleset
define nic_citycom = eth1
define ip_citycom = {{ network_zones.cc_hmtsaal.prefix | ansible.utils.ipaddr(network_zones.cc_hmtsaal.offsets[inventory_hostname]) | ansible.utils.ipaddr('address') }}
define nic_mgmt = "eth0.{{ network_mgmt_zone.vlan }}"
define prefix_mgmt = {{ network_mgmt_zone.prefix }}
{% for zone_name in network_internal_zone_names %}
define nic_{{ zone_name }} = eth0.{{ network_zones[zone_name].vlan }}
define prefix_{{ zone_name }} = {{ network_zones[zone_name].prefix }}
{% endfor %}
table inet global {
## INPUT
chain input_external {
ip protocol icmp accept
ip6 nexthdr ipv6-icmp accept
tcp dport { {{ ansible_port }} } accept
}
chain input_internal {
ip protocol icmp accept
ip6 nexthdr ipv6-icmp accept
tcp dport { {{ ansible_port }}, domain } accept
udp dport { bootps, domain, ntp } accept
}
chain input {
type filter hook input priority filter; policy drop;
ct state vmap { established: accept, related: accept, invalid: drop }
iifname vmap { lo: accept, $nic_mgmt: accept{% for zone_name in network_internal_zone_names %}, $nic_{{ zone_name }}: jump input_internal {% endfor %}, $nic_citycom: jump input_external }
}
## FORWARD
chain forward {
type filter hook forward priority filter; policy drop;
ct state vmap { established: accept, related: accept, invalid: drop }
iifname { {{ ['$nic_'] | product(network_internal_zone_names) | map('join') | join(', ') }} } oifname $nic_citycom accept
}
chain postrouting {
type nat hook postrouting priority srcnat; policy accept;
ip saddr { {{ ['$prefix_'] | product(network_internal_zone_names) | map('join') | join(', ') }} } oifname $nic_citycom snat to $ip_citycom
}
}
openwrt_uci:
system:
- name: system
options:
hostname: '{{ host_name }}'
timezone: 'CET-1CEST,M3.5.0,M10.5.0/3'
ttylogin: '0'
log_size: '64'
urandom_seed: '0'
- name: timeserver 'ntp'
options:
enabled: '1'
enable_server: '1'
server:
- '0.at.pool.ntp.org'
- '1.at.pool.ntp.org'
- '2.at.pool.ntp.org'
- '3.at.pool.ntp.org'
dropbear:
- name: dropbear
options:
PasswordAuth: 'off'
RootPasswordAuth: 'off'
Port: '{{ ansible_port }}'
uhttpd:
- name: uhttpd main
options:
enabled: '0'
prometheus-node-exporter-lua:
- name: prometheus-node-exporter-lua 'main'
options:
listen_interface: 'mgmt'
listen_port: '9100'
dhcp: "{{ openwrt_dhcp_base + openwrt_dhcp_internal + openwrt_dhcp_external }}"
network: "{{ openwrt_network_base + openwrt_network_internal + openwrt_network_external }}"
prometheus_scrape_endpoint: "{{ network_mgmt_zone.prefix | ansible.utils.ipaddr(network_mgmt_zone.offsets[inventory_hostname]) | ansible.utils.ipaddr('address') }}:9100"
prometheus_exporters_default:
- openwrt
|
