mirror of https://github.com/slackhq/nebula.git
139 lines
3.5 KiB
Markdown
139 lines
3.5 KiB
Markdown
# Quickstart Guide
|
|
|
|
This guide is intended to bring up a vagrant environment with 1 lighthouse and 2 generic hosts running nebula.
|
|
|
|
## Creating the virtualenv for ansible
|
|
|
|
Within the `quickstart/` directory, do the following
|
|
|
|
```
|
|
# make a virtual environment
|
|
virtualenv venv
|
|
|
|
# get into the virtualenv
|
|
source venv/bin/activate
|
|
|
|
# install ansible
|
|
pip install -r requirements.yml
|
|
```
|
|
|
|
## Bringing up the vagrant environment
|
|
|
|
A plugin that is used for the Vagrant environment is `vagrant-hostmanager`
|
|
|
|
To install, run
|
|
|
|
```
|
|
vagrant plugin install vagrant-hostmanager
|
|
```
|
|
|
|
All hosts within the Vagrantfile are brought up with
|
|
|
|
`vagrant up`
|
|
|
|
Once the boxes are up, go into the `ansible/` directory and deploy the playbook by running
|
|
|
|
`ansible-playbook playbook.yml -i inventory -u vagrant`
|
|
|
|
## Testing within the vagrant env
|
|
|
|
Once the ansible run is done, hop onto a vagrant box
|
|
|
|
`vagrant ssh generic1.vagrant`
|
|
|
|
or specifically
|
|
|
|
`ssh vagrant@<ip-address-in-vagrant-file` (password for the vagrant user on the boxes is `vagrant`)
|
|
|
|
Some quick tests once the vagrant boxes are up are to ping from `generic1.vagrant` to `generic2.vagrant` using
|
|
their respective nebula ip address.
|
|
|
|
```
|
|
vagrant@generic1:~$ ping 10.168.91.220
|
|
PING 10.168.91.220 (10.168.91.220) 56(84) bytes of data.
|
|
64 bytes from 10.168.91.220: icmp_seq=1 ttl=64 time=241 ms
|
|
64 bytes from 10.168.91.220: icmp_seq=2 ttl=64 time=0.704 ms
|
|
```
|
|
|
|
You can further verify that the allowed nebula firewall rules work by ssh'ing from 1 generic box to the other.
|
|
|
|
`ssh vagrant@<nebula-ip-address>` (password for the vagrant user on the boxes is `vagrant`)
|
|
|
|
See `/etc/nebula/config.yml` on a box for firewall rules.
|
|
|
|
To see full handshakes and hostmaps, change the logging config of `/etc/nebula/config.yml` on the vagrant boxes from
|
|
info to debug.
|
|
|
|
You can watch nebula logs by running
|
|
|
|
```
|
|
sudo journalctl -fu nebula
|
|
```
|
|
|
|
Refer to the nebula src code directory's README for further instructions on configuring nebula.
|
|
|
|
## Troubleshooting
|
|
|
|
### Is nebula up and running?
|
|
|
|
Run and verify that
|
|
|
|
```
|
|
ifconfig
|
|
```
|
|
|
|
shows you an interface with the name `nebula1` being up.
|
|
|
|
```
|
|
vagrant@generic1:~$ ifconfig nebula1
|
|
nebula1: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1300
|
|
inet 10.168.91.210 netmask 255.128.0.0 destination 10.168.91.210
|
|
inet6 fe80::aeaf:b105:e6dc:936c prefixlen 64 scopeid 0x20<link>
|
|
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)
|
|
RX packets 2 bytes 168 (168.0 B)
|
|
RX errors 0 dropped 0 overruns 0 frame 0
|
|
TX packets 11 bytes 600 (600.0 B)
|
|
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
|
|
```
|
|
|
|
### Connectivity
|
|
|
|
Are you able to ping other boxes on the private nebula network?
|
|
|
|
The following are the private nebula ip addresses of the vagrant env
|
|
|
|
```
|
|
generic1.vagrant [nebula_ip] 10.168.91.210
|
|
generic2.vagrant [nebula_ip] 10.168.91.220
|
|
lighthouse1.vagrant [nebula_ip] 10.168.91.230
|
|
```
|
|
|
|
Try pinging generic1.vagrant to and from any other box using its nebula ip above.
|
|
|
|
Double check the nebula firewall rules under /etc/nebula/config.yml to make sure that connectivity is allowed for your use-case if on a specific port.
|
|
|
|
```
|
|
vagrant@lighthouse1:~$ grep -A21 firewall /etc/nebula/config.yml
|
|
firewall:
|
|
conntrack:
|
|
tcp_timeout: 12m
|
|
udp_timeout: 3m
|
|
default_timeout: 10m
|
|
|
|
inbound:
|
|
- proto: icmp
|
|
port: any
|
|
host: any
|
|
- proto: any
|
|
port: 22
|
|
host: any
|
|
- proto: any
|
|
port: 53
|
|
host: any
|
|
|
|
outbound:
|
|
- proto: any
|
|
port: any
|
|
host: any
|
|
```
|