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Add markdown linting (without breaking the site this time!)

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David Young
2021-10-21 17:53:15 +13:00
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19
manuscript/ha-docker-swarm/nodes.md
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@@ -16,7 +16,6 @@ Let's start building our cluster. You can use either bare-metal machines or virt
* At least 20GB disk space (_but it'll be tight_)
* [ ] Connectivity to each other within the same subnet, and on a low-latency link (_i.e., no WAN links_)
## Preparation
### Permit connectivity
@@ -27,7 +26,7 @@ Most modern Linux distributions include firewall rules which only only permit mi
Add something like this to `/etc/sysconfig/iptables`:
```
```bash
# Allow all inter-node communication
-A INPUT -s 192.168.31.0/24 -j ACCEPT
```
@@ -38,7 +37,7 @@ And restart iptables with ```systemctl restart iptables```
Install the (*non-default*) persistent iptables tools, by running `apt-get install iptables-persistent`, establishing some default rules (*dkpg will prompt you to save current ruleset*), and then add something like this to `/etc/iptables/rules.v4`:
```
```bash
# Allow all inter-node communication
-A INPUT -s 192.168.31.0/24 -j ACCEPT
```
@@ -49,17 +48,15 @@ And refresh your running iptables rules with `iptables-restore < /etc/iptables/r
Depending on your hosting environment, you may have DNS automatically setup for your VMs. If not, it's useful to set up static entries in /etc/hosts for the nodes. For example, I setup the following:
```
192.168.31.11 ds1 ds1.funkypenguin.co.nz
192.168.31.12 ds2 ds2.funkypenguin.co.nz
192.168.31.13 ds3 ds3.funkypenguin.co.nz
```
- 192.168.31.11 ds1 ds1.funkypenguin.co.nz
- 192.168.31.12 ds2 ds2.funkypenguin.co.nz
- 192.168.31.13 ds3 ds3.funkypenguin.co.nz
### Set timezone
Set your local timezone, by running:
```
```bash
ln -sf /usr/share/zoneinfo/<your timezone> /etc/localtime
```
@@ -69,11 +66,11 @@ After completing the above, you should have:
!!! summary "Summary"
Deployed in this recipe:
* [X] 3 x nodes (*bare-metal or VMs*), each with:
* A mainstream Linux OS (*tested on either [CentOS](https://www.centos.org) 7+ or [Ubuntu](http://releases.ubuntu.com) 16.04+*)
* At least 2GB RAM
* At least 20GB disk space (_but it'll be tight_)
* [X] Connectivity to each other within the same subnet, and on a low-latency link (_i.e., no WAN links_)
--8<-- "recipe-footer.md"
--8<-- "recipe-footer.md"